Stone Creek Ranch TR 30834 BCPR2021-0033 - Master Solar Plans - Revision 3Project Name:
Project Address:
Project Description:
Sheet No.
PVA‐0
PVA‐1 & PVA‐2
PVE‐1.4 to PVE‐1.13;
PVE‐1.16 to PVE‐1.21
PVE1.1 to PVE‐1.22
PVE‐3
Should you have any additional questions, please feel free to contact me.
Sincerely,
_____________________________
Jennibeth Sedavia/ Design Engineer
SunPower Corporation / 1-800-SUNPOWER
jennibeth.sedavia@sunpowercorp.com
4 Show MSP rating and MSP serial number
1 Removed ESS
2 Revised layout
3 Added SLDs due to new stringing, based on revised layouts
5 Removed storage specifications
La Quinta, California 92253
No.Description
Roof top photovoltaic system Master Permit Package for Stone Creek
Stone Creek
2/08/2023
BUILDING AND SAFETY DEPARTMENT
City/County La Quinta
RE: RESUBMITTAL LETTER
REVISION #3
BCPR2021-0033
VARIOUS FIELD
CHANGES
07/06/2023
TOLL BROTHERS - SOCAL
725 TOWN AND COUNTRY RD #200 ORANGE, CA 92868
TRACT/PARCEL #: 30834LA QUINTA, CALIFORNIA 92253
STONE CREEK
PLAN 1 - DALEA, 2 - LARREA3 - JUBILEE, 4 - TECOMA, 4X - TECOMA
CODE INFORMATION
APPLICABLE CODES, LAWS AND REGULATIONS
2019 CALIFORNIA RESIDENTIAL CODE (CRC)
2019 CALIFORNIA BUILDING CODE (CBC)
2019 CALIFORNIA FIRE CODE (CFC)
2019 CALIFORNIA ELECTRICAL CODE (CEC)
2019 CALIFORNIA MECHANICAL CODE (CMC)
2019 CALIFORNIA PLUMBING CODE (CPC)
NOT TO SCALE
SHEET
GENERAL NOTES:SHEET INDEX
VICINITY MAP
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Exp. 03-31-23R
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COMMUNITY ID
CHECKED BY
DATE CHECKED
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
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SCOPE OF WORK:
"ALL CONSTRCUTION SHALL COMPLY WITH THE 2022 CALIFORNIA RESIDENSTIAL,
MECHANICAL, ELECTRICAL, PLUMBING, GREEN BUILDING AND ENERFY CODES AND THE LA
QUINTANA MUNICIPAL CODE."
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SOLAR ELECTRICAL DRAWINGS
PVE-1.1 ELECTRICAL SINGLE LINE DIAGRAM
PVE-2.2 ELECTRICAL DETAILS
PVE-1.2
PVE-1.3
PVE-1.4
PVE-1.5
PVE-1.6
PVE-3 ELECTRICAL DATA & SPECIFICATIONS
SOLAR MASTER PLAN PERMIT PACKAGE
MOUNTING DETAILS, STRUCTURAL INFORMATION &
SPECIFICATIONS
PVS-1
PVS-2 STRUCTURAL CALCULATIONS
PVS-3 TYPICAL ROOF INSET DETAILS
SOLAR STRUCTURAL DRAWINGS
SOLAR ARCHITECTURAL DRAWINGS
PVA-0 COVER SHEET
PVA-1 PLAN 1 - DALEA ELEVATION A,B,C
PVA-2
PVA-3
PVA-4
PVA-5
PVA-6
PVA-7
PVA-8
PLAN 2-LARREA, ELEVAION A,B,C
PLAN 2-LARREA OPT. MULTI-GEN SUITE, ELEVATION A,B,C
PVA-9
PVA-10
PLAN 3-JUBILEE, ELEVATION A,B,C
PVA-11
PVA-12
PLAN 3-JUBILEE OPT. 4-CAR GARAGE, ELEVATION A,B,C
PLAN 4X -TECOMA, ELEVATION A,B,C
PVE-1.7
PVE-1.8
PVE-1.9
PVE-1.10
PVE-1.11
PVE-1.12
PVE-1.13
PVE-1.14
PVE-1.15
PVE-1.16
PVE-1.17
PVE-1.18
PVE-1.19
PVE-1.20
PVE-1.21
PVE-1.22
PVE-2.1 ELECTRICAL DETAILS
PLAN 1-DALEA OPT. CASITA, ELEVAION A,B,C
PLAN 2-LARREA OPT. 4-CAR GARAGE, ELEVATION A,B,C
PLAN 2-LARREA OPT. MULTI-GEN SUITE W/4-CAR GARAGE, ELEVATION A,B,C
PLAN 3-JUBILEE OPT. MULTI-GEN SUITE, ELEVATION A,B,C
PLAN 3-JUBILEE OPT. MULTI-GEN SUITE W/4-CAR GARAGE, ELEVATION A,B,C
PLAN 4 -TECOMA, ELEVATION A,B,C
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
ELECTRICAL SINGLE LINE DIAGRAM
9N:N:N:N:N: :
REVISION #3
07/06/2023
LEGEND: ARE 3' WIDE FIRE ACCESS PATH PLAN TYPE OPTION DESCRIPTION
01
02
03
-----------------------------------
-----------------------------------
-----------------------------------
04
05
-----------------------------------
-----------------------------------
FRONT OF HOUSE : 150° - 180°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 240° - 360°LAYOUT 3 FRONT OF HOUSE : 150° - 180°LAYOUT 4 FRONT OF HOUSE : 60° - 90°LAYOUT 5
PLAN 1 - ELEVATION A (SB) - S-TILE
FRONT OF HOUSE : 150° - 180°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 240° - 360°LAYOUT 3 FRONT OF HOUSE : 60° - 90°LAYOUT 4
NOTE :
ROOFTOP PENETRATIONS AND/OR OBSTRUCTIONS NOT PERTAINING TO
SOLAR INSTALLATION SHALL NOT BE LOCATED UNDER THE ARRAY.
BASE SQUARE FOOTAGE: 2,879 SQ. FT.
PLAN 1 - ELEVATION C (DC) - FLAT TILE
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)TRANSITION BOX
TRANSITION BOX
TRANSITION BOX (TYP.)TRANSITION BOX (TYP.)
TRANSITION BOX
TRANSITION BOX
TO ELECTRIC
UTILITY GRID
SUNPOWER 96 CELLS AC MODULES
MODEL NO.NOMINAL POWER (Pnom)
350W
SYSTEM SIZE
SPR-X21-350-BLK-E-AC
QUANTITY: 20
7.00 kW
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
ROOF ACCESS POINT
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
ROOF ACCESS POINT
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
FRONT OF HOUSE : 150° - 180°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 240° - 360°LAYOUT 3 FRONT OF HOUSE : 150° - 180°LAYOUT 4 FRONT OF HOUSE : 60° - 90°LAYOUT 5
PLAN 1 - ELEVATION B (TU) - S-TILE
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX
TRANSITION BOX
TRANSITION BOX (TYP.)
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
FRONT OF HOUSE : 240° - 270°LAYOUT 6
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
TO ELECTRIC
UTILITY GRID
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
ROOF ACCESS POINT
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
SLD REFERENCE PVE-1.3 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.4 SLD REFERENCE PVE-1.4
SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.4 SLD REFERENCE PVE-1.5 SLD REFERENCE PVE-1.2
SLD REFERENCE PVE-1.3 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.2 SLD REFERENCE PVE-1.2
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)SHEET
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Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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C002189
D-0125070
02-06-2022
JSEDAVIA
02-06-2022
EOR
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A
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9
2
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6
8
&
REVISION #3
07/06/2023
LEGEND: ARE 3' WIDE FIRE ACCESS PATH PLAN TYPE OPTION DESCRIPTION
01
02
03
-----------------------------------
-----------------------------------
-----------------------------------
04
05
-----------------------------------
-----------------------------------
FRONT OF HOUSE : 150° - 180°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 60° - 180°LAYOUT 3 FRONT OF HOUSE : 240° - 360°LAYOUT 4
PLAN 1 OPT. CASITA - ELEVATION A (SB) - S-TILE
FRONT OF HOUSE : 150° - 270°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 60° - 180°LAYOUT 3 FRONT OF HOUSE : 240° - 360°LAYOUT 4
NOTE :
ROOFTOP PENETRATIONS AND/OR OBSTRUCTIONS NOT PERTAINING TO
SOLAR INSTALLATION SHALL NOT BE LOCATED UNDER THE ARRAY.
BASE SQUARE FOOTAGE: 3,199 SQ. FT.
PLAN 1 OPT. CASITA - ELEVATION C (DC) - FLAT TILE
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
TRANSITION BOX
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
TRANSITION BOX
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX
ROOF ACCESS POINT
ROOF ACCESS POINT
SUNPOWER 96 CELLS AC MODULES
MODEL NO.NOMINAL POWER (Pnom)
350W
SYSTEM SIZE
SPR-X21-350-BLK-E-AC
QUANTITY: 21
7.35 kW
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
FRONT OF HOUSE : 150° - 180°LAYOUT 1 FRONT OF HOUSE : 330° - 90°LAYOUT 2 FRONT OF HOUSE : 150° - 180°LAYOUT 3 FRONT OF HOUSE : 240° - 360°LAYOUT 4
PLAN 1 OPT. CASITA - ELEVATION B (TU) - S-TILE
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX
TRANSITION BOX
TO ELECTRIC
UTILITY GRID
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
FRONT OF HOUSE : 60° - 90°LAYOUT 4
(E) SERVICE POINT AND
UTILITY METERING
(N) LOAD CENTER (INSIDE GARAGE)
UTILITY AC DISCONNECT SWITCH
(OUTSIDE GARAGE WITHIN SIGHT
FROM THE MAIN SERVICE PANEL)
TO ELECTRIC
UTILITY GRID
ROOF ACCESS POINT
ROOF ACCESS POINT
TRANSITION BOX (TYP.)
TRANSITION BOX (TYP.)
SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.8 SLD REFERENCE PVE-1.6
SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.7 SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.6
SLD REFERENCE PVE-1.10 SLD REFERENCE PVE-1.6 SLD REFERENCE PVE-1.11 SLD REFERENCE PVE-1.6
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)
FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)FRONT OF HOUSE (FOH)SHEET
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8
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SCALE 1/24" - 1'-0"
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL E
N
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COMMUNITY ID
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C002189
D-0125070
02-06-2022
JSEDAVIA
02-06-2022
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 5.95 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
8 AC MODULESBRANCH CIRCUIT #2
9 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
30A, 2P
A, 2P A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.73%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 8
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 10.48 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 13.10 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 18.07 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.65%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 13.10 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #10
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 22.27 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 27.84 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.16 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.23%
OVERCURRENT PROTECTION 30A, 2P
MINIMUM OCPD = IOUT x 1.25 27.84 A
OCPD SIZE 30 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 60 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
EATON DG221URB OR EQUIVALENT LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 30A, 240VAC
#10
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.1
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
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I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
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DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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C002189
'1
JSEDAVIA
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
10 AC MODULESBRANCH CIRCUIT #2
10 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.88%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.88%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 26.20 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 32.75 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 31.95 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.17%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 32.75 A
OCPD SIZE 40 A
VOLTAGE DROP AT 65 FT DISTANCE VOLTAGE DROP AT 65 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
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E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
8 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.65%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 8
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 10.48 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 13.10 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 18.07 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.54%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 13.10 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 26.20 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 32.75 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 31.95 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.17%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 32.75 A
OCPD SIZE 40 A
VOLTAGE DROP AT 40 FT DISTANCE VOLTAGE DROP AT 50 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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9
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8
9
5
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-
3
5
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L
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-
E
-
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C
(
2
4
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PVE-1.3
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
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PROJECT NO.
DATE DRAWN
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CHECKED BY
DATE CHECKED
ST
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2
2
5
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
9 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#1
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.89%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.91%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 26.20 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 32.75 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 31.95 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.17%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 32.75 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 75 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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TATE OF CA L I F O R NIA
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
9 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#8
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.89%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.91%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 26.20 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 32.75 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 31.95 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.17%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 32.75 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 75 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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8
9
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8
9
5
SP
R
-
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2
1
-
3
5
0
-
B
L
K
-
E
-
A
C
(
2
4
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)
PVE-1.5
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
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DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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K
TR
A
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8
3
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5
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2
5
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
10 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.89%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.81%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 60 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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TATE OF CA L I F O R NIA
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
10 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.89%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.81%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 60 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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8
9
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8
9
5
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R
-
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2
1
-
3
5
0
-
B
L
K
-
E
-
A
C
(
2
4
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)
PVE-1.
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
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DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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K
TR
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8
3
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5
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
5 AC MODULESBRANCH CIRCUIT #3
6 AC MODULESBRANCH CIRCUIT #2
10 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
1.22%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 6
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 7.86 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 9.83 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 13.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.45%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 9.83 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 5
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 6.55 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 8.19 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 11.29 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.74%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 8.19 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE VOLTAGE DROP AT 55 FT DISTANCE VOLTAGE DROP AT 110 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
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S
TATE OF CA L I F O R NIA
CHIFUNG L
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PROJECT NO.
DATE DRAWN
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ST
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
9 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#1
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
#
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP
VOLTAGE DROP AT 0 FT DISTANCE VOLTAGE DROP AT 105 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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#
:
8
9
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8
9
5
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R
-
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2
1
-
3
5
0
-
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L
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-
E
-
A
C
(
2
4
0
)
PVE-1.
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
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G
DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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K
TR
A
C
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3
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5
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9
2
2
5
3
C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
9 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#8
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
1.02%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.80%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 100 FT DISTANCE VOLTAGE DROP AT 105 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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TATE OF CA L I F O R NIA
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
3 AC MODULESBRANCH CIRCUIT #3
8 AC MODULESBRANCH CIRCUIT #2
10 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
1.22%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 8
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 10.48 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 13.10 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 18.07 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.60%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 13.10 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 3
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 3.93 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 4.91A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 6.78 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.45%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 4.91 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE VOLTAGE DROP AT 55 FT DISTANCE VOLTAGE DROP AT 110 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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9
5
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2
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E
-
A
C
(
2
4
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PVE-1.11
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
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G
DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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C
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TR
A
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/
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#
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8
3
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5
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,
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9
2
2
5
3
C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
6 AC MODULESBRANCH CIRCUIT #3
7 AC MODULESBRANCH CIRCUIT #2
8 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 8
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 10.48 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 13.10 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 18.07 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.97%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 13.10 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 7
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 9.17 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 11.46 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 15.81 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.52%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 11.46 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 6
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 7.86 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 9.83 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 13.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.89%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 9.83 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE VOLTAGE DROP AT 55 FT DISTANCE VOLTAGE DROP AT 110 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
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REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.35 kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
BRANCH CIRCUIT #3 AC MODULES
7 AC MODULESBRANCH CIRCUIT #2
BRANCH CIRCUIT #1 AC MODULES
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 7
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 9.17 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 11.46 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 15.81 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.52%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 11.46 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 27.51 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 34.39 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 33.55 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.18%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 34.39 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE VOLTAGE DROP AT 55 FT DISTANCE VOLTAGE DROP AT 110 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E)MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.1
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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TATE OF CA L I F O R NIA
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PROJECT NO.
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
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,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 6.65 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
8 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.45%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 8
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 10.48 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 13.10 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 18.07 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.76%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 13.10 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 24.89 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 31.11 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 30.35 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.16%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 31.11 A
OCPD SIZE 40 A
VOLTAGE DROP AT 30 FT DISTANCE VOLTAGE DROP AT 70 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.14
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
UN
G
DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
O
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E
C
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K
TR
A
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/
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9
2
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5
3
C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
FIGURE A: SINGLE LINE DIAGRAM - 6.65 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
9 AC MODULESBRANCH CIRCUIT #2
10 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.95%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 9
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 11.79 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 14.74 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 20.33 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.85%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 14.74 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 24.89 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 31.11 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 30.35 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.16%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 31.11 A
OCPD SIZE 40 A
VOLTAGE DROP AT 70 FT DISTANCE VOLTAGE DROP AT 70 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
FIGURE A: SINGLE LINE DIAGRAM - 7.70 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
10 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACIY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.97%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
0.81%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 28.82 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 36.03 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 35.15 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.19%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 36.03 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 60 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.16
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
UN
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DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.70 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
10 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACIY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.97%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #
NUMBER OF MODULES PER BRANCH CIRCUIT 10
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 13.10 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 16.38 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 22.59 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #
0.81%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 16.38 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 28.82 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 36.03 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 35.15 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.19%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 36.03 A
OCPD SIZE 40 A
VOLTAGE DROP AT 60 FT DISTANCE VOLTAGE DROP AT 60 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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LECT R I C A L
E22659
Exp. 03-31-23R
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.70 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
11 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
1.12%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
1.12%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 28.82 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 36.03 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 35.15 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.19%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 36.03 A
OCPD SIZE 40 A
VOLTAGE DROP AT 75 FT DISTANCE VOLTAGE DROP AT 75 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.18
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
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DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
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9
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.70 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
11 AC MODULESBRANCH CIRCUIT #2
11 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#8
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.93%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 11
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 14.41A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 18.01 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 24.84 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.93%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 18.01 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 28.82 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 36.03 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 35.15 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.19%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 36.03 A
OCPD SIZE 40 A
VOLTAGE DROP AT 100 FT DISTANCE VOLTAGE DROP AT 100 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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PVE-1.19
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
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S
TATE OF CA L I F O R NIA
CHIFUNG L
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9
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2
5
3
C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
BRANCH CIRCUIT #3 AC MODULES
7 AC MODULESBRANCH CIRCUIT #2
BRANCH CIRCUIT #19 AC MODULES
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
2A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 7
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 9.17 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 11.46 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 15.81 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
#10
0.%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 11.46 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
#10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.1 %
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP
VOLTAGE DROP AT FT DISTANCE
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP
VOLTAGE DROP AT 10 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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8
9
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8
9
5
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R
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2
1
-
3
5
0
-
B
L
K
-
E
-
A
C
(
2
4
0
)
PVE-1.
E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
E
N
G
I
N
E
ER
S
TATE OF CA L I F O R NIA
CHIFUNG L
E
UN
G
DRAWN BY
PROJECT NO.
DATE DRAWN
COMMUNITY ID
CHECKED BY
DATE CHECKED
ST
O
N
E
C
R
E
E
K
TR
A
C
T
/
P
A
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#
:
3
0
8
3
4
TO
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S
-
S
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72
5
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2
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LA
Q
U
I
N
T
A
,
C
A
L
I
F
O
R
N
I
A
9
2
2
5
3
C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 7.kWDC
2
A
DC
AC
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
BRANCH CIRCUIT #3 AC MODULES
7 AC MODULESBRANCH CIRCUIT #2
BRANCH CIRCUIT #1 AC MODULES
SPR-X21-350-BLK-E-AC
#10
#10
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=2A, 2P
40A, 2P
A, 2P A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, BRANCH 3 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #10
NUMBER OF MODULES PER BRANCH CIRCUIT 7
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 9.17 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 11.46 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 15.81 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
#10
0.%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 11.46 A
OCPD SIZE 20 A
ROOF JCT BOX TO GRID-TIE WIRING #10
NUMBER OF MODULES PER BRANCH CIRCUIT
VOLTAGE 240 V
BRANCH CURRENT: IOUT = $
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 $
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF $
WIRE SIZE SELECTED BASED ON AMPACITY #10
AMPACITY AT 60C TERMINATION (>IOUT) 30 A
CONDUCTOR SIZE PER NEC #10
#10
%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 A
NEXT LARGER OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.1 %
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 A
OCPD SIZE 40 A
VOLTAGE DROP AT 90 FT DISTANCE
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP
VOLTAGE DROP AT FT DISTANCE
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP
VOLTAGE DROP AT 10 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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E22659
Exp. 03-31-23R
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
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A
N
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C
A
9
2
8
6
8
REVISION #3
07/06/2023
FIGURE A: SINGLE LINE DIAGRAM - 8.40 kWDC
2
A
DC
AC
DC
AC
1
SUNPOWER MODULES
AC MODULE
EXTENSION CABLE
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B
INTEGRATED MICROINVERTER
B
12 AC MODULESBRANCH CIRCUIT #2
12 AC MODULESBRANCH CIRCUIT #1
SPR-X21-350-BLK-E-AC
#10
#8
SPR-X21-350-BLK-E-AC (240)
UTILITY
BIDIRECTIONAL
METER
(NOT CENTER-FED)INCOMING SOURCE FEED
H
MCB
(E)MAIN SERVICE PANEL
2A, 120/240V, 1PH, 3W
GND
EXISTING
GND
TO HOUSE
LOADS
BREAKERS SHALL BE
INSTALLED OPPOSITE
END OF THE MAIN
BREAKER
*MSP MAX PV BREAKER (A) =
X 120% -
=A, 2P
40A, 2P
A, 2P 2A, 2P
4A, 2P
OPTIONAL
ETHERNET
CONNECTION TO
DSL/CABLE MODEM
CAT5e
CURRENT
TRANSFORMERS (100A)
INSTALLED ON THE
CUSTOMER SIDE OF
THE PANEL
1
#14
#14
NM CABLE OR EQ
INSTALLED IN WALL CAVITY
#22 NMFC
CU-NM-B
AWG TWISTED PAIR
EGC BARE CU
3
INSTALLED IN WALL
CAVITY
1/2"
--
PRODUCTION CURRENT
TRANSFORMERS (100A)
SUNPOWER
MONITORING
PVS6
E
3
D
E
E
D
#6
15A, 2P
GND
3
NOTE:
FOR SOLAR PHOTOVOLTAIC ONLY.
NO ADDITIONAL LOADS TO BE APPLIED
(N)LOAD CENTER
100A OR EQUIVALENT, 120/240V, 1PH
20A, 2P
20A, 2P
AC, BRANCH 1
FIGURE C: ELECTRICAL CALCULATIONS
AC, BRANCH 2 AC, SUB-PANEL
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.87%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
ROOF JCT BOX TO PV LOAD CENTER #8
NUMBER OF MODULES PER BRANCH CIRCUIT 12
VOLTAGE 240 V
BRANCH CURRENT: IOUT = 15.72 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 19.65 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE ADDER 22°C
TEMPERATURE USED FOR AMPACITY DE-RATING 69°C
TEMPERATURE DE-RATING COEFFICIENT 0.58
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 27.10 A
WIRE SIZE SELECTED BASED ON AMPACITY #10
WIRE SIZE AMPACITY 30 A
CONDUCTOR SIZE PER NEC #10
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.82%
OVERCURRENT PROTECTION 20A, 2P
MINIMUM OCPD = IOUT x 1.25 19.65 A
OCPD SIZE 20 A
PV LOAD CENTER TO GRID-TIE #8
VOLTAGE 240 V
SUM OF BRANCHES: IOUT_TOTAL = 31.44 A
MINIMUM WIRE AMPACITY: IMAX = IOUT x 1.25 39.30 A
CONDUCTOR DE-RATING
MAXIMUM AMBIENT TEMPERATURE 47°C
TEMPERATURE USED FOR AMPACITY DE-RATING 47°C
TEMPERATURE DE-RATING COEFFICIENT 0.82
FILL DE-RATING COEFFICIENT 1
IWIRE_MIN = IOUT / TEMP_COEFF / FILL_COEFF 38.34 A
WIRE SIZE SELECTED BASED ON AMPACITY #8
WIRE SIZE AMPACITY 40A
CONDUCTOR SIZE PER NEC #8
CONDUCTOR SIZE ADJUSTED FOR VOLTAGE DROP #8
0.20%
OVERCURRENT PROTECTION 40A, 2P
MINIMUM OCPD = IOUT x 1.25 39.30 A
OCPD SIZE 40 A
VOLTAGE DROP AT 85 FT DISTANCE VOLTAGE DROP AT 80 FT DISTANCE
VOLTAGE DROP AT 10 FT DISTANCE
ELECTRICAL NOTES
1. ALL SEAL TIGHT FLEXIBLE METAL CONDUIT (OR EQUIVALENT) TO BE BONDED
TO GROUND AT COUPLINGS ON BOTH ENDS.
2. CONDUIT ENTRY/CONNECTION TO ELECTRICAL ENCLOSURES SHALL BE
SUITABLE FOR GROUNDING AND SHALL BE SEALED AGAINST ENVIRONMENT,
SUCH AS WATER, INSECTS AND RODENTS. CONDUIT SHALL NOT ENTER FROM
TOP OF ELECTRICAL EQUIPMENT IN OUTDOOR LOCATIONS WITHOUT
SITE-SPECIFIC APPROVAL FROM SUNPOWER. IF GRANTED APPROVAL FOR TOP
ENTRY, ONLY RIGID CONDUIT WITH MEYERS HUBS TO BE USED.
3. PROPER LISTING EXPECTED FOR CONDITIONS OF USE ON ALL LUGS, FITTINGS,
CRIMPS, ETC.
4. ALL CONDUIT BEND RADII TO CONFORM TO THE CEC MINIMUM BEND RADII
REQUIREMENTS.
5. MINIMUM CLEARANCE SHALL BE MAINTAINED PER CEC FOR ALL NEW
EQUIPMENTS TO BE INSTALLED.
6. EXISTING GROUNDING ELECTRODE SYSTEM MUST MEET CEC AND LOCAL
UTILITY REQUIREMENTS.
7. COPPER CONDUCTORS SHALL BE USED UNLESS SPECIFIED.
8. TYPE NM (ROMEX) CONDUCTORS ARE ALLOWED FOR INTERNAL AND ATTIC
RUNS AND SHALL BE INSTALLED MEETING CEC REQUIREMENTS.
9. AC WIRING SHALL UPSIZE IF VOLTAGE DROP EXCEEDS 2%.
10. RUN CONDUCTORS IN EXISTING CONDUIT WHEN AVAILABLE PROVIDED IT HAS
NO OTHER CONDUCTORS RUNNING THROUGH IT.
11. IF MAIN SERVICE PANEL IS TO BE UPGRADED, IT WILL BE PERMITTED AND
INSTALLED BY A THIRD PARTY.
12. CONDUIT SIZE BASED ON 2 BENDS MAXIMUM. ANY ADDITIONAL BENDS MAY
REQUIRE UPSIZE.
NOTE :
x SUNPOWER 15A MONITORING BREAKER CAN BE RELOCATED
TO OTHER LOAD CENTER OR SUB-PANEL WITHIN THE HOUSE
FOR CONSTRUCTION FEASIBILITY.
x BELOW ARE OPTIONAL OFFERINGS AND SHALL ONLY BE
INSTALLED IF THE HOMEOWNER SIGNS A SPECIFIC
CONTRACT WITH SUNPOWER.
x SUNPOWER MONITORING SYSTEM
x AS DC POWER IS INTERNAL TO THE MODULE, GROUNDING
ELECTRODE CONDUCTOR (GEC) FOR THE MODULE OR ARRAY
IS NOT REQUIRED.
1
2
CONDUCTOR / CONDUIT SCHEDULE
DESCRIPTION &
CONDUCTOR TYPE
CONDUCTOR
SIZE(AWG)
2
1
SUNPOWER PROVIDED AC MODULES EXTENSION
CABLE, LISTED AS AN ASSEMBLY
NUMBER
OF
CONDUCTORS
CONDUIT/ CABLE
TYPE
CONDUIT SIZE
(WHEN NEEDED)
#12 TYPE-ER, PER
BRANCH CIRCUIT --EGC BARE CUA
B
TAG
SPR-X21-350-BLK-E-AC (240)
LOCATED OUTSIDE WITH VISIBLE KNIFE BLADES
5
NM CABLE OR EQ
INSTALLED IN WALL CAVITY --EGC BARE CU
CU-NM-B 3
1
GND
C
C
UTILITY-LOCKABLE SAFETY SWITCH 60A, 240VAC EATON DG222URB OR EQUIVALENT
#8
#10
TAG
1
2
3
4
5
SOURCE CIRCUIT TRANSITION BOX
(N) LOAD CENTER
PV PRODUCTION METER
SEPARATE AC DISCONNECT
DESCRIPTION
SOLAR AC MODULE / BRANCH
3
4
(N) LOAD CENTER
PV PRODUCTION METER
SUNVAULT BATTERY INVERTER
BACK-UP LOAD CENTER
SUNVAULT ENERGY STORAGE SYSTEM6
7
8
(E) MAIN SERVICE PANEL
225A,120/240 V,1PH,3W
SERIAL NUMBER:SQUARE D / SERIAL #SC3042M225PF
62/$55($'<6(59,&(3$1(/
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E
LECT R I C A L
E22659
Exp. 03-31-23R
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TATE OF CA L I F O R NIA
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023
SOLADECK DATA SHEET
CURRENT TRANSFORMER SPECIFICATION SHEET AC DISCONNECT DATA SHEET PV MODULE SPECIFICATION SHEET PG PVS6 DATASHEET 1 PVS6 DATASHEET 2 PVS6 INSTALLATION INSTRUCTIONS 1
PVS6 INSTALLATION INSTRUCTIONS 2 PV MODULE COMPLIANCE LETTER CERTIFICATE OF COMPLIANCE FOR WIRING SYSTEM AND HARNESS CONDUCTOR AND OCPD SIZING TABLE
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E
LECT R I C A L
E22659
Exp. 03-31-23R
EGISTERE D P R O F ESSIONAL
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TATEOF CA L I F O R NIA
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C002189
D-0125070
02-06-2023
JSEDAVIA
02-06-2023
EOR
OR
A
N
G
E
,
C
A
9
2
8
6
8
REVISION #3
07/06/2023