Classic Colonial Homes Inc. 83,85 Spring St Planset
76 North Meadowbrook Drive
Scott E. Wyssling, PE Alpine, UT 84004
Coleman D. Larsen, SE, PE office (201) 874-3483
Gregory T. Elvestad, PE swyssling@wysslingconsulting.com
October 28, 2024
Greenlancer Energy Inc. 500 Woodward Avenue, Suite 2125 Detroit, MI 48226
Re: Engineering Services Classic Colonial Homes Inc. 83 Spring Street, Florence, MA
23.000 kW System To Whom It May Concern:
We have received information regarding solar panel installation on the roof of the above referenced structure. Our evaluation of the structure is to verify the existing capacity of the roof system and its ability to support the additional loads imposed by the proposed solar system. A. Site Assessment Information 1. Site visit documentation identifying attic information including size and spacing of framing
for the existing roof structure. 2. Design drawings of the proposed system including a site plan, roof plan and connection details for the solar panels. This information will be utilized for approval and construction of the proposed system.
B. Description of Structure: Roof Framing: 2x12 dimensional lumber at 16” on center.
Roof Material: Metal Roofing Roof Slope: 33 degrees Attic Access: Accessible Foundation: Permanent
C. Loading Criteria Used • Dead Load
o Existing Roofing and framing = 8 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 11 PSF
• Dead Load
o Existing Roofing and framing = 7 psf
o New Solar Panels and Racking = 3 psf
o TOTAL = 10 psf
• Live Load = 20 psf (reducible) – 0 psf at locations of solar panels
• Ground Snow Load = 40 psf
• Wind Load based on ASCE 7-16
o Ultimate Wind Speed = 117 mph (based on Risk Category II)
o Exposure Category C
Analysis performed of the existing roof structure utilizing the above loading criteria is in accordance with the 2021 IRC, including provisions allowing existing structures to not require strengthening if the new loads do not exceed existing design loads by 105% for gravity elements and 110% for seismic elements. This analysis indicates that the existing framing will support the additional panel
loading without damage, if installed correctly.
Page 2 of 2
D. Solar Panel Anchorage
1. The solar panels shall be mounted in accordance with the most recent S-5! Installation manual. If during solar panel installation, the roof framing members appear unstable or deflect non-uniformly, our office should be notified before proceeding with the installation.
2. System will be attached to the metal roofing material utilizing the patented S-5! Connection. Installation of the connections shall be in accordance with the manufacturer’s recommendations. 3. Considering the wind speed, roof slopes, size and spacing of framing members, and condition of the roof, the panel supports shall be placed no greater than 48” on center.
Based on the above evaluation, this office certifies that with the racking and mounting specified, the existing roof system will adequately support the additional loading imposed by the solar system. This evaluation is in conformance with the 2021 IRC, current industry standards, and is based on information supplied to us at the
time of this report. Should you have any questions regarding the above or if you require further information do not hesitate to contact me.
Very truly yours,
Scott E. Wyssling, PE
MA License No. 50507 Massachusetts COA # 001629764
Signed 10/28/2024
GENERAL NOTES
1.1.1 PROJECT NOTES:
1.1.2 THIS PHOTOVOLTAIC (PV) SYSTEM SHALL COMPLY WITH THE NATIONAL ELECTRIC
CODE (NEC) ARTICLE 690, ALL MANUFACTURERS’S LISTING AND INSTALLATION
INSTRUCTIONS, AND THE RELEVANT CODES AS SPECIFIED BY THE AUTHORITY
HAVING JURISDICTION’S (AHJ) APPLICABLE CODES.
1.1.3 THE UTILITY INTERCONNECTION APPLICATION MUST BE APPROVED AND PV SYSTEM
INSPECTED PRIOR TO PARALLEL OPERATION
1.1.4 ALL PV SYSTEM COMPONENTS; MODULES, UTILITY-INTERACTIVE INVERTERS, AND
SOURCE CIRCUIT COMBINER BOXES ARE IDENTIFIED AND LISTED FOR USE IN
PHOTOVOLTAIC SYSTEMS AS REQUIRED BY NEC 690.4: PV MODULES: UL1703,
IEC61730, AND IEC61215, AND NFPA 70 CLASS C FIRE INVERTERS: UL 1741 CERTIFIED,
IEEE 1547, 929, 519 COMBINER BOX(ES): UL 1703 OR UL 1741 ACCESSORY
1.1.5 MAX DC VOLTAGE CALCULATED USING MANUFACTURER PROVIDED TEMP
COEFFICIENT FOR VOC. IF UNAVAILABLE, MAX DC VOLTAGE CALCULATED
ACCORDING TO NEC 690.7.
1.1.6 ALL INVERTERS, PHOTOVOLTAIC MODULES, PHOTOVOLTAIC PANELS, AND SOURCE
CIRCUIT COMBINERS INTENDED FOR USE IN A PHOTOVOLTAIC POWER SYSTEM WILL
BE IDENTIFIED AND LISTED FOR THE APPLICATION PER 690.4 (D). SHALL BE
INSTALLED ACCORDING TO ANY INSTRUCTIONS FROM LISTING OR LABELING [NEC
110.3].
1.1.7 ALL SIGNAGE TO BE PLACED IN ACCORDANCE WITH LOCAL BUILDING CODE. IF
EXPOSED TO SUNLIGHT, IT SHALL BE UV RESISTANT. ALL PLAQUES AND SIGNAGE
WILL BE INSTALLED AS REQUIRED BY THE NEC AND AHJ.
1.2.1 SCOPE OF WORK:
1.2.2 PRIME CONTRACTOR IS RESPONSIBLE FOR THE DESIGN AND SPECIFICATIONS OF
THE GRID-TIED PHOTOVOLTAIC SYSTEM RETROFIT. PRIME CONTRACTOR WILL BE
RESPONSIBLE FOR COLLECTING EXISTING ONSITE REQUIREMENTS TO DESIGN,
SPECIFY, AND INSTALL THE EXTERIOR ROOF-MOUNTED PORTION OF THE
PHOTOVOLTAIC SYSTEMS DETAILED IN THIS DOCUMENT.
1.3.1 WORK INCLUDES:
1.3.2 PV ROOF ATTACHMENTS - S!5 S-5-U CLAMPS
1.3.3 PV RACKING SYSTEM INSTALLATION - IRONRIDGE AIRE A1
1.3.4 PV MODULE AND INVERTER INSTALLATION -
REC SOLAR REC430AA PURE 2 / TESLA POWERWALL 3
1.3.5 PV EQUIPMENT GROUNDING
1.3.6 PV SYSTEM WIRING TO A ROOF-MOUNTED JUNCTION BOX
1.3.7 PV LOAD CENTERS (IF INCLUDED)
1.3.8 PV METERING/MONITORING (IF INCLUDED)
1.3.9 PV DISCONNECTS
1.3.10 PV FINAL COMMISSIONING
1.3.11 (E) ELECTRICAL EQUIPMENT RETROFIT FOR PV
1.3.12 SIGNAGE PLACED IN ACCORDANCE WITH LOCAL BUILDING CODE
*NEC2020I2
OWNER
NAME: THE BUIILDING TRUST LLC.
PROJECT MANAGER
NAME: PATRICK RONDEAU
PHONE: 413-588-8185
PROJECT DESIGNED
NAME: JESSE BREKELBAUM
PROJECT SUPERVISED
NAME: JESSE BREKELBAUM
CONTRACTOR
NAME: VALLEY SOLAR, LLC
PHONE: 413-584-8844
AUTHORITIES HAVING JURISDICTION
BUILDING: CITY OF NORTHAMPTON
ZONING: CITY OF NORTHAMPTON
UTILITY: NATIONAL GRID
DESIGN SPECIFICATIONS
OCCUPANCY: II
CONSTRUCTION: SINGLE-FAMILY
ZONING: RESIDENTIAL
GROUND SNOW LOAD: 40 PSF
WIND EXPOSURE: C
WIND SPEED: 117 MPH
APPLICABLE CODES & STANDARDS
BUILDING: MASSACHUSETTS BUILDING CODE, 9TH EDITION, AS
AMENDED (780 CMR), MASSACHUSETTS RESIDENTIONAL
BUILDING CODE, 9TH EDITION, AS AMENDED (780 CMR)
ELECTRICAL: NEC 2023
FIRE: NFPA 1 FIRE CODE - 2021
PROJECT INFORMATION
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
THE BUIILDING TRUST LLC.
83 SPRING STREET,
FLORENCE, MA 01062
ASSESSOR'S #: 22B-069-001
PROJECT INFORMATION
SCOPE OF WORK
SYSTEM SIZE:
ATTACHMENT TYPE:
MSP UPGRADE:
STC: 48 X 430W = 20.640KW
PTC: 48 X 407.6W = 19.564KW
(48) REC SOLAR REC430AA PURE 2
(2) TESLA POWERWALL 3
(2) TESLA BACKUP GATEWAY 3
S!5 S-5-U CLAMPS
NO
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
01 AERIAL PHOTO
NOT TO SCALE
N
EW
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02 PLAT MAP
NOT TO SCALE
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SHEET LIST TABLE
SHEET NUMBER SHEET TITLE
T-001.00 COVER PAGE
G-001.00 NOTES
A-101.00 SITE PLAN
A-102.00 ELECTRICAL PLAN
A-103.00 SOLAR ATTACHMENT PLAN
A-104.00 ROOF PLAN
E-601.00 LINE DIAGRAM
E-602.00 DESIGN TABLES
E-603.00 PLACARDS
S-501.00 ASSEMBLY DETAILS
R-001.00 RESOURCE DOCUMENT
R-002.00 RESOURCE DOCUMENT
R-003.00 RESOURCE DOCUMENT
R-004.00 RESOURCE DOCUMENT
R-005.00 RESOURCE DOCUMENT
R-006.00 RESOURCE DOCUMENT
R-007.00 RESOURCE DOCUMENT
R-008.00 RESOURCE DOCUMENT
T-001.00
COVER PAGE
- SERVICE PHASE: SINGLE
- SERVICE SIZE (AMPS): 200
- DISTANCE FROM UTILITY METER TO TRANSFORMER: 50 FT.
- CONNECTIVITY TYPE: OVERHEAD
- UTILITY METER NUMBER: 22357169
- INVERTER: (2) TESLA POWERWALL 3
- PANELS: (48) REC SOLAR REC430AA PURE 2
- DC-STC RATING OF SYSTEM: 20.640kW
- AC SYSTEM DESIGN CAPACITY (NOMINAL): 23,000W
- AC SYSTEM DESIGN CAPACITY (MAXIMUM): 23,000W
NOTE: SMOKE ALARM SYSTEM WILL BE FULL
UP TO CODE. HARDWIRED,
INTERCONNECTED SMOKE ALARMS
THROUGHOUT HOUSE AND AT ESS
LOCATION
Signed 10/28/2024
2.1.1 SITE NOTES:
2.1.2 A LADDER WILL BE IN PLACE FOR INSPECTION IN COMPLIANCE WITH OSHA REGULATIONS.
2.1.3 THE PV MODULES ARE CONSIDERED NON-COMBUSTIBLE AND THIS SYSTEM IS A UTILITY
INTERACTIVE SYSTEM WITH STORAGE BATTERIES.
2.1.4 THE SOLAR PV INSTALLATION WILL NOT OBSTRUCT ANY PLUMBING, MECHANICAL, OR BUILDING
ROOF VENTS.
2.1.5 PROPER ACCESS AND WORKING CLEARANCE AROUND EXISTING AND PROPOSED ELECTRICAL
EQUIPMENT WILL BE PROVIDED AS PER SECTION NEC 110.26.
2.1.6 ROOF COVERINGS SHALL BE DESIGNED, INSTALLED, AND MAINTAINED IN ACCORDANCE WITH
THIS CODE AND THE APPROVED MANUFACTURER'S INSTRUCTIONS SUCH THAT THE ROOF
COVERING SERVES TO PROTECT THE BUILDING OR STRUCTURE.
2.2.1 EQUIPMENT LOCATIONS
2.2.2 ALL EQUIPMENT SHALL MEET MINIMUM SETBACKS AS REQUIRED BY NEC 110.26.
2.2.3 WIRING SYSTEMS INSTALLED IN DIRECT SUNLIGHT MUST BE RATED FOR EXPECTED OPERATING
TEMPERATURE AS SPECIFIED BY NEC 690.31 (A),(C) AND NEC TABLE 310.15 (B)(1).
2.2.4 JUNCTION AND PULL BOXES PERMITTED INSTALLED UNDER PV MODULES ACCORDING TO NEC
690.34.
2.2.5 ADDITIONAL AC DISCONNECT(S) SHALL BE PROVIDED WHERE THE INVERTER IS NOT WITHIN
SIGHT OF THE AC SERVICING DISCONNECT.
2.2.6 ALL EQUIPMENT SHALL BE INSTALLED ACCESSIBLE TO QUALIFIED PERSONNEL ACCORDING TO
NEC APPLICABLE CODES.
2.2.7 ALL COMPONENTS ARE LISTED FOR THEIR PURPOSE AND RATED FOR OUTDOOR USAGE WHEN
APPROPRIATE.
2.3.1 STRUCTURAL NOTES:
2.3.2 RACKING SYSTEM & PV ARRAY WILL BE INSTALLED ACCORDING TO CODE-COMPLIANT
INSTALLATION MANUAL. TOP CLAMPS REQUIRE A DESIGNATED SPACE BETWEEN MODULES,
AND RAILS MUST ALSO EXTEND A MINIMUM DISTANCE BEYOND EITHER EDGE OF THE
ARRAY/SUBARRAY, ACCORDING TO RAIL MANUFACTURER’S INSTRUCTIONS.
2.3.3 JUNCTION BOX WILL BE INSTALLED PER MANUFACTURERS' SPECIFICATIONS. IF
ROOF-PENETRATING TYPE, IT SHALL BE FLASHED & SEALED PER LOCAL REQUIREMENTS.
2.3.4 ROOFTOP PENETRATIONS FOR PV RACEWAY WILL BE COMPLETED AND SEALED W/ APPROVED
CHEMICAL SEALANT PER CODE BY A LICENSED CONTRACTOR.
2.3.5 ALL PV RELATED ROOF ATTACHMENTS TO BE SPACED NO GREATER THAN THE SPAN DISTANCE
SPECIFIED BY THE RACKING MANUFACTURER.
2.3.6 WHEN POSSIBLE, ALL PV RELATED RACKING ATTACHMENTS WILL BE STAGGERED AMONGST
THE ROOF FRAMING MEMBERS.
2.4.1 GROUNDING NOTES:
2.4.2 GROUNDING SYSTEM COMPONENTS SHALL BE LISTED FOR THEIR PURPOSE, AND GROUNDING
DEVICES EXPOSED TO THE ELEMENTS SHALL BE RATED FOR SUCH USE.
2.4.3 PV SYSTEMS REQUIRE AN EQUIPMENT GROUNDING CONDUCTOR. ALL METAL ELECTRICAL
EQUIPMENT AND STRUCTURAL COMPONENTS BONDED TO GROUND, IN ACCORDANCE WITH
250.134 OR 250.136(A). ONLY THE DC CONDUCTORS ARE UNGROUNDED.
2.4.4 PV EQUIPMENT SHALL BE GROUNDED ACCORDING TO NEC 690.43 AND MINIMUM NEC TABLE
250.122.
2.4.5 METAL PARTS OF MODULE FRAMES, MODULE RACKING, AND ENCLOSURE CONSIDERED
GROUNDED IN ACCORD WITH 250.134 AND 250.136(A).
2.4.6 EACH MODULE WILL BE GROUNDED USING WEEB GROUNDING CLIPS AS SHOWN IN
MANUFACTURER DOCUMENTATION AND APPROVED BY THE AHJ. IF WEEBS ARE NOT USED,
MODULE GROUNDING LUGS MUST BE INSTALLED AT THE SPECIFIED GROUNDING LUG HOLES
PER THE MANUFACTURERS' INSTALLATION REQUIREMENTS.
2.4.7 THE GROUNDING CONNECTION TO A MODULE SHALL BE ARRANGED SUCH THAT THE REMOVAL
OF A MODULE DOES NOT INTERRUPT A GROUNDING CONDUCTOR TO ANOTHER MODULE.
2.4.8 GROUNDING AND BONDING CONDUCTORS, IF INSULATED, SHALL BE COLORED GREEN OR
MARKED GREEN IF #4 AWG OR LARGER [NEC 250.119]
2.4.9 THE GROUNDING ELECTRODE SYSTEM COMPLIES WITH NEC 690.47 AND NEC 250.50 THROUGH
250.106. IF EXISTING SYSTEM IS INACCESSIBLE, OR INADEQUATE, A GROUNDING ELECTRODE
SYSTEM PROVIDED ACCORDING TO NEC 250, NEC 690.47 AND AHJ.
2.4.10 DC PV ARRAYS SHALL BE PROVIDED WITH DC GROUND-FAULT PROTECTION MEETING THE
REQUIREMENTS OF 690.41(B)(1) THROUGH (3) TO REDUCE FIRE HAZARDS
2.5.1 INTERCONNECTION NOTES:
2.5.2 LOAD-SIDE INTERCONNECTION SHALL BE IN ACCORDANCE WITH [NEC 705.12]
2.5.3 THE SUM OF 125 PERCENT OF THE POWER SOURCE(S)OUTPUT CIRCUIT CURRENT AND THE
RATING OF THE OVERCURRENT DEVICE PROTECTING THE BUSBAR SHALL NOT EXCEED 120
PERCENT OF THE AMPACITY OF THE BUSBAR, PV DEDICATED BACKFEED BREAKERS MUST BE
LOCATED OPPOSITE END OF THE BUS FROM THE UTILITY SOURCE OCPD [NEC 705.12(B)(3)(2)].
2.5.4 AT MULTIPLE ELECTRIC POWER SOURCES OUTPUT COMBINER PANEL, TOTAL RATING OF ALL
OVERCURRENT DEVICES SHALL NOT EXCEED AMPACITY OF BUSBAR. HOWEVER,THE
COMBINED OVERCURRENT DEVICE MAY BE EXCLUDED ACCORDING TO NEC 705.12 (B)(3)(3).
2.5.5 FEEDER TAP INTERCONNECTION (LOAD SIDE) ACCORDING TO NEC 705.12 (B)(1) AND (2)
2.5.6 SUPPLY SIDE TAP INTERCONNECTION ACCORDING TO NEC 705.11 WITH SERVICE ENTRANCE
CONDUCTORS IN ACCORDANCE WITH NEC 230.42
2.5.7 BACKFEEDING BREAKER FOR ELECTRIC POWER SOURCES OUTPUT IS EXEMPT FROM
ADDITIONAL FASTENING [NEC 705.12 (E)].
2.6.1 DISCONNECTION AND OVER-CURRENT PROTECTION NOTES:
2.6.2 DISCONNECTING SWITCHES SHALL BE WIRED SUCH THAT WHEN THE SWITCH IS OPENED THE
CONDUCTORS REMAINING ENERGIZED ARE CONNECTED TO THE TERMINALS MARKED “LINE
SIDE” (TYPICALLY THE UPPER TERMINALS).
2.6.3 DISCONNECTS TO BE ACCESSIBLE TO QUALIFIED UTILITY PERSONNEL, BE LOCKABLE, AND BE A
VISIBLE-BREAK SWITCH.
2.6.4 BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED. THEREFORE BOTH MUST
OPEN WHERE A DISCONNECT IS REQUIRED, ACCORDING TO NEC 690.13.
2.6.5 ISOLATING DEVICES OR EQUIPMENT DISCONNECTING MEANS SHALL BE INSTALLED IN CIRCUITS
CONNECTED TO EQUIPMENT AT A LOCATION WITHIN THE EQUIPMENT, OR WITHIN SIGHT AND
WITHIN 10 FT. OF THE EQUIPMENT. AN EQUIPMENT DISCONNECTING MEANS SHALL BE
PERMITTED TO BE REMOTE FROM THE EQUIPMENT WHERE THE EQUIPMENT DISCONNECTING
MEANS CAN BE REMOTELY OPERATED FROM WITHIN 10 FT. OF THE EQUIPMENT, ACCORDING
TO NEC 690.15 (A).
2.6.6 PV SYSTEM CIRCUITS INSTALLED ON OR IN BUILDINGS SHALL INCLUDE A RAPID SHUTDOWN
FUNCTION TO REDUCE SHOCK HAZARD FOR EMERGENCY RESPONDERS IN ACCORDANCE WITH
690.12(A) THROUGH (D)
2.6.7 ALL OCPD RATINGS AND TYPES SPECIFIED ACCORDING TO NEC 690.8, 690.9, AND 240.
2.6.8 BOTH POSITIVE AND NEGATIVE PV CONDUCTORS ARE UNGROUNDED, THEREFORE BOTH
REQUIRE OVER-CURRENT PROTECTION, ACCORDING TO NEC 240.21. (SEE EXCEPTION IN NEC
690.9)
2.6.9 IF REQUIRED BY AHJ, SYSTEM WILL INCLUDE ARC-FAULT CIRCUIT PROTECTION ACCORDING TO
NEC 690.11 AND UL1699B.
2.7.1 WIRING & CONDUIT NOTES:
2.7.2 ALL CONDUIT AND WIRE WILL BE LISTED AND APPROVED FOR THEIR PURPOSE. CONDUIT AND
WIRE SPECIFICATIONS ARE BASED ON MINIMUM CODE REQUIREMENTS AND ARE NOT MEANT
TO LIMIT UP-SIZING.
2.7.3 ALL CONDUCTORS SIZED ACCORDING TO NEC 690.8, NEC 690.7.
2.7.4 EXPOSED PV SOURCE CIRCUITS AND OUTPUT CIRCUITS SHALL USE WIRE LISTED AND
IDENTIFIED AS PHOTOVOLTAIC (PV) WIRE [690.31 (C)]. PV MODULES WIRE LEADS SHALL
BE LISTED FOR USE ON PV ARRAYS, ACCORDING TO NEC 690.31 (A).
2.7.5 PV WIRE BLACK WIRE MAY BE FIELD-MARKED WHITE [NEC 200.6 (A)(5)].
2.7.6 MODULE WIRING SHALL BE LOCATED AND SECURED UNDER THE ARRAY.
2.7.7 ACCORDING TO NEC 200.7, UNGROUNDED SYSTEMS DC CONDUCTORS COLORED OR MARKED
AS FOLLOWS:
DC POSITIVE-RED, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREEN
DC NEGATIVE- BLACK, OR OTHER COLOR EXCLUDING WHITE, GRAY AND GREEN
2.7.8 AC CONDUCTORS COLORED OR MARKED AS FOLLOWS:
PHASE A OR L1- BLACK
PHASE B OR L2- RED, OR OTHER CONVENTION IF THREE PHASE
PHASE C OR L3- BLUE, YELLOW, ORANGE*, OR OTHER CONVENTION
NEUTRAL- WHITE OR GRAY
*IN 4-WIRE DELTA CONNECTED SYSTEMS THE PHASE WITH HIGHER VOLTAGE TO BE MARKED
ORANGE [NEC 110.15].
*NEC2020I2
*NEC2020I2
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
G-001.00
NOTES
Signed 10/28/2024
GENERAL NOTES
1.FIELD VERIFY ALL MEASUREMENTS
2.ITEMS BELOW MAY NOT BE ON THIS PAGE
3.THE SOLAR PANELS ARE LESS THAN 4 FEET
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
A-101.00
SITE PLAN
N
EW
S
01/16" = 1'-0"
SITE PLAN01 8'16'
ENTRANCE
AREA OF WORK
SP
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E
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PROPERTY LINE
CUSTOMER OWNED METER
AC DISCONNECT
UTILITY METER
CUSTOMER OWNED METER
AC DISCONNECT
38'-10"
16'-2"
39'-2"
19'-3"
Signed 10/28/2024
GENERAL NOTES
1.FIELD VERIFY ALL MEASUREMENTS
2. ITEMS BELOW MAY NOT BE ON THIS PAGE
3. THE SOLAR PANELS ARE LESS THAN 4 FEET
MODULE:
REC SOLAR
REC430AA PURE 2
430 WATTS
40.9''
73.4''
SQUARE FOOTAGE OF ROOF: 1853.13 SQ. FT.
SQUARE FOOTAGE OF ARRAY: 1000.69 SQ. FT.
PERCENTAGE OF ROOF COVERED BY THE ARRAYS: 54.00%
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
A-102.00
ELECTRICAL PLAN
N E
W S
01/8" = 1'-0"
ELECTRICAL PLAN014' 8'
A MODULE STRINGING
B MODULE STRINGING
C MODULE STRINGING
D MODULE STRINGING
E MODULE STRINGING
F MODULE STRINGING
G MODULE STRINGING
H MODULE STRINGING
ARRAY 1 - 5.160 KW
[x12] (N) MODULES
TILT: 33 DEGREES
ROOF PITCH: 8:12
AZIMUTH: 43 DEGREES
FIRE CLEARANCE
2"X4" STUDS
5/8" TYPE X GYPSUM BOARD INTERIOR,
EXTERIOR, AND CEILING OF CLOSET
BATTERY UNITS MOUNTED
IN NEW INTERIOR
CLOSET
20-MINUTE FIRE RATED
DOOR 32"X80"
5'-0"
5'-0"
TESLA POWERWALL 3 ,
TYP UNIT AFFIXED TO
WALL CONNECTED VIA
FLOOR MOUNT
BRACKET
INTERIOR PV EQUIPMENT
(N) (1) AC DISCONNECT
(E) (1) MAIN ELECTRICAL PANEL #2
EXTERIOR PV EQUIPMENT
NOTE: BATTERY CLOSET WILL BE LOCATED IN THE UNFINISHED
BASEMENT, SW SIDE TOWARDS THE FRONT OF THE HOME
NOTE: ESS DISCONNECT LABEL PER NEC 706.7(D) AT ESS CLOSET
DOOR IN INTERIOR AND PV ACDISCONNECTING MEANS AT EXTERIOR
BRAND: BRK 7010B (SMOKE), BRK SC7010LBLV (SMOKE/CO2)
(N) (1) CUSTOMER OWNED METER
(N) (1) SOLADECK
(N) (1) TESLA POWERWALL 3
A
NOTE: FIRE-RATED CLOSET SURROUNDING
THE BATTERIES.
DETAILS:
- FIRE-RATED DOOR
- TYPE-X 5/8" GYPSUM BOARD (SPECIFIED
ON BOTH INSIDE AND OUTSIDE OF CLOSET)
- 5'X5' CLOSET SPECIFIED
ARRAY 2 - 5.160 KW
[x12] (N) MODULES
TILT: 33 DEGREES
ROOF PITCH: 8:12
AZIMUTH: 43 DEGREES
A
B
B
A
A
B
B
A
A
B
B
E
E
F
F
E
E
F
F
E
E
F
F
G
G
H
H
G
G
H
H
G
G
H
H
C
C
D
D
C
C
D
D
C
C
D
D
(E) (1) UTILITY METER
EXTERIOR PV EQUIPMENT
(N) (1) GATEWAY 3
INTERIOR PV EQUIPMENT
(E) (1) MAIN ELECTRICAL PANEL #1
(N) (1) TESLA POWERWALL 3
(N) (1) GATEWAY 3
(N) (1) SOLADECK
(N) (1) AC DISCONNECT
EXTERIOR PV EQUIPMENT
(N) (1) CUSTOMER OWNED METER
ARRAY 3 - 5.160 KW
[x12] (N) MODULES
TILT: 33 DEGREES
ROOF PITCH: 8:12
AZIMUTH: 223 DEGREES
ARRAY 4 - 5.160 KW
[x12] (N) MODULES
TILT: 33 DEGREES
ROOF PITCH: 8:12
AZIMUTH: 223 DEGREES
36 IN. FIRE ACCESS PATH
36 IN. FIRE
ACCESS PATH
36 IN. FIRE
ACCESS PATH
2"X4" STUDS
5/8" TYPE X GYPSUM BOARD INTERIOR,
EXTERIOR, AND CEILING OF CLOSET
BATTERY
UNITS MOUNTED
IN NEW INTERIOR
CLOSET
20-MINUTE FIRE RATED
DOOR 32"X80"
5'-0"
5'-0"
TESLA POWERWALL 3 ,
TYP UNIT AFFIXED TO
WALL CONNECTED VIA
FLOOR MOUNT
BRACKET
Signed 10/28/2024
GENERAL NOTES
1.FIELD VERIFY ALL MEASUREMENTS
2.ITEMS BELOW MAY NOT BE ON THIS PAGE
3.THE SOLAR PANELS ARE LESS THAN 4 FEET
MODULE:
REC SOLAR
REC430AA PURE 2
430 WATTS
40.9''
73.4''
SE EXTERIOR WALL
(N) AC DISCONNECT
(E) UTILITY METER
(E) MEP #1
(N) CUSTOMER
OWNED
METER
(N) TESLA
GATEWAY 3
FIRE-RATED CLOSET
- FIRE-RATED DOOR
- TYPE-X 5/8" GYPSUM BOARD
(SPECIFIED ON BOTH INSIDE
AND OUTSIDE OF CLOSET)
- 5'X5' CLOSET SPECIFIED
(N) TESLA POWERWALL 3
NW INTERIOR WALL SW EXTERIOR WALL
(N) AC DISCONNECT (E) MEP #2
(N) CUSTOMER
OWNED
METER
(N) TESLA
GATEWAY 3
FIRE-RATED CLOSET
- FIRE-RATED DOOR
- TYPE-X 5/8" GYPSUM BOARD
(SPECIFIED ON BOTH INSIDE
AND OUTSIDE OF CLOSET)
- 5'X5' CLOSET SPECIFIED
(N) TESLA POWERWALL 3
NE INTERIOR WALL
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
A-103.00
SOLAR ATTACHMENT PLAN
03/32" = 1'-0"
SOLAR ATTACHMENT PLAN015'-4"10'-8"
N E
W S
02 EQUIPMENT ELEVATION
NOT TO SCALE
METAL RIBS
ROOF MATERIAL IS STANDING SEAM METAL
FLUSH MOUNT SOLAR MODULES
ATTACHED TO ROOF SURFACE (SEE
SHEET S-501.00 FOR MOUNTING DETAILS)
18'-5"18'-5"
18'-5"18'-5"
Signed 10/28/2024
GENERAL NOTES
1.FIELD VERIFY ALL MEASUREMENTS
2.ITEMS BELOW MAY NOT BE ON THIS PAGE
3.THE SOLAR PANELS ARE LESS THAN 4 FEET
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
A-104.00
ROOF PLAN
01 ROOF PLAN
NOT TO SCALE
Signed 10/28/2024
BATTERY
L1L2NG
+
-DC
DCG
(N) TESLA POWERWALL 3
1707000-XX-Y 11.5 KW (240V)
(N) (8) TESLA MCI-1
(24) REC SOLAR
REC430AA PURE 2
430 WATTS
14 AWG THHN, 12V RSDRSD INRSD OUTSYSTEM EQUIPPED WITH RAPID SHUTDOWN
DISCONNECT PER NEC 690.12
SYSTEM COMPLIANT WITH NEC 690.13
NOTE: THE BATTERY WILL ONLY BE CHARGED BY
PV. THE BATTERY WILL DISCHARGE TO ON SITE
LOADS. THE BATTERY DISCHARGES TO THE GRID
ONLY IF REQUESTED BY THE GRID VIA CONNECTED
SOLUTIONS.
NOTE: ALL CONSTRUCTION NEEDS TO ABIDE BY THE ESB 750 & ESB 756. INSTALLATIONS CAN NOT
INCLUDE ANY KIND OF TAPS, METER COLLARS OR ADAPTERS INSIDE NATIONAL GRID OWNED
AND MAINTAINED EQUIPMENT, METER SOCKETS, METER CABINETS OR ANYWHERE THERE ARE
UN-METERED CONDUCTORS. ANY NEW METERING AND DISCONNECT EQUIPMENT WILL NEED TO
BE GROUPED, POTENTIALLY LOCATED OUTSIDE AND 24/7 LOCKABLE AND ACCESSIBLE, IN
ACCORDANCE WITH ESB 7.1.1. ALL EQUIPMENT LOCATIONS WILL NEED TO BE APPROVED BY
NATIONAL GRID METERING DEPARTMENT PRIOR TO INSTALLATION.
IRONRIDGE FLUSH-MOUNTED SYSTEMS ARE
LISTED TO UL3741 STANDARDS WITH TESLA
EQUIPMENT
2X MCI-1 PER STRING
A 6
B 6
C 6
D 6
(N) SOLADECK
1 2
VG
SW134
(N) (1) CUSTOMER
OWNED METER
LINE
LOAD 5
(N) (1) AC DISCONNECT, 60A
(Е) MAIN ELECTRICAL PANEL #1
240/120 V 1Ø, 3W
MAIN BUSS: 200A
CTRL
M
GN
GN
TO (E)
LOADS
6
(N) BACKUP GATEWAY 3
240/120 V 1Ø, 3W 200 А
6
(E)
MAIN
200A
CB1
60A
(N) 200A
TO UTILITY
GRID (OH)
L2
N
L1
(E) GROUNDING
ELECTRODE
GROUND
ROD
(E)
UTILITY
METER
MARKING IS REQUIRED ON INTERIOR AND EXTERIOR
DIRECT-CURRENT (DC) CONDUIT, ENCLOSURES, RACEWAYS,
CABLE ASSEMBLIES, JUNCTION BOXES, COMBINER BOXES AND
DISCONNECTS
STORAGE CHARGING CAPACITY 13.5 KWH
STORAGE CHARGING CAPABILITY
GENERATION ONLY
STORAGE DISCHARGING CAPABILITY
RESTRICTED ELECTRIC GRID OR ON SITE LOAD
NOTE:READILY ACCESSIBLE OPEN
BLADE AC SYSTEM DISCONNECT VISIBLE
FROM APPROACH TO RESIDENCE 60A
240V LOCATED EXTERIOR ON WALL NEAR
METER NEMA 3R
NOTE: TOP LUGS TO SOLAR
GENERATION
BOTTOM LUGS TO UTILITY
LOCATED EXTERIOR
METER # 22357169
BATTERY
L1L2NG
+
-DC
DCG
(N) TESLA POWERWALL 3
1707000-XX-Y 11.5 KW (240V)
(N) (8) TESLA MCI-1
(24) REC SOLAR
REC430AA PURE 2
430 WATTS
14 AWG THHN, 12V RSDRSD INRSD OUTE 6
F 6
G 6
H 6
(N) SOLADECK
1 2
VG
SW234
(N) (1) CUSTOMER
OWNED METER
LINE
LOAD
5
(N) (1) AC DISCONNECT, 60A
(Е) MAIN ELECTRICAL PANEL #2
240/120 V 1Ø, 3W
MAIN BUSS: 200A
CTRL
M
GN
GN
TO (E)
LOADS
6
(N) BACKUP GATEWAY 3
240/120 V 1Ø, 3W 200 А
6
(E)
MAIN
200A
CB2
60A
(N) 200A
(E) GROUNDING
ELECTRODE
GROUND
ROD
NOTE:READILY ACCESSIBLE OPEN
BLADE AC SYSTEM DISCONNECT VISIBLE
FROM APPROACH TO RESIDENCE 60A
240V LOCATED EXTERIOR ON WALL NEAR
METER NEMA 3R
NOTE: TOP LUGS TO SOLAR
GENERATION
BOTTOM LUGS TO UTILITY
LOCATED EXTERIOR
CONDUCTOR AND CONDUIT SCHEDULE W/ELECTRICAL CALCULATIONS
ID TYPICAL CONDUCTOR CONDUIT CURRENT-CARRYING
CONDUCTORS IN CONDUIT OCPD EGC TEMP. CORR.
FACTOR
CONDUIT FILL
FACTOR
CONT.
CURRENT
MAX. CURRENT
(125%)BASE AMP.DERATED
AMP.TERM. TEMP. RATING AMP. @ TERMINAL
1 8 10 AWG PV WIRE, COPPER FREE AIR 2 N/A 6 AWG BARE, COPPER 0.96 (32.7 °C)1 13.51A 16.89A 55A 52.8A 75°C 50A
2 2 10 AWG THWN-2, COPPER 0.75'' DIA EMT 8 N/A 10 AWG THWN-2, COPPER 0.96 (32.7 °C)0.7 13.51A 16.89A 40A 26.88A 75°C 35A
3 2 6 AWG THWN-2, COPPER 0.75'' DIA EMT 2 N/A 10 AWG THWN-2, COPPER 0.96 (32.7 °C)1 48A 60A 75A 72A 75°C 65A
4 2 6 AWG THWN-2, COPPER 0.75'' DIA EMT 2 N/A 10 AWG THWN-2, COPPER 0.96 (32.7 °C)1 48A 60A 75A 72A 75°C 65A
5 2 6 AWG THWN-2, COPPER 0.75'' DIA EMT 2 60A 10 AWG THWN-2, COPPER 0.96 (32.7 °C)1 48A 60A 75A 72A 75°C 65A
6 4 3/0 AWG THWN-2, COPPER 2'' DIA EMT 2 200A 6 AWG THWN-2, COPPER 0.96 (32.7 °C)1 -200A 225A 216A 75°C 200A
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
E-601.00
LINE DIAGRAM
A MODULE STRINGING
B MODULE STRINGING
C MODULE STRINGING
D MODULE STRINGING
E MODULE STRINGING
F MODULE STRINGING
G MODULE STRINGING
H MODULE STRINGING
Signed 10/28/2024
DISCONNECTS
INVERTERS
MODULES
ASHRAE EXTREME LOW -25.9°C (-14.6°F), SOURCE: BARNES MUNI (42.16°; -72.72°)
ASHRAE 2% HIGH 32.7°C (90.9°F), SOURCE: BARNES MUNI (42.16°; -72.72°)
REF.QTY.MAKE AND MODEL RATED CURRENT MAX RATED VOLTAGE
SW1-2 2 EATON DG222URB OR EQUIV.60A 240VAC
REF.QTY.MAKE AND MODEL PMAX PTC ISC IMP VOC VMP TEMP. COEFF. OF VOC FUSE RATING
PM1-48 48 REC SOLAR REC430AA PURE 2 430W 407.6W 10.81A 10.05A 49.3V 42.8V -0.118V/°C (-0.24%/°C)25A
REF.QTY.MAKE AND MODEL AC
VOLTAGE GROUND OCPD
RATING
RATED
POWER
MAX OUTPUT
CURRENT
MAX INPUT
CURRENT
MAX INPUT
VOLTAGE
CEC WEIGHTED
EFFICIENCY
I1-2 2 TESLA 1707000-xx-y 11.5 KW 240V FLOATING 60A 11500W 48A 6X13A 600V 97.0%
OCPDS
REF.QTY.RATED CURRENT MAX VOLTAGE
CB1-2 2 60A 240VAC
SYSTEM SUMMARY
INVERTER #1 INVERTER #2
MPPT
#1
MPPT
#2
MPPT
#3
MPPT
#4
MPPT
#1
MPPT
#2
MPPT
#3
MPPT
#4
MODULES IN SERIES 6 6 6 6 6 6 6 6
ARRAY VMP 256.8V 256.8V 256.8V 256.8V 256.8V 256.8V 256.8V 256.8V
ARRAY IMP 10.05A 10.05A 10.05A 10.05A 10.05A 10.05A 10.05A 10.05A
ARRAY VOC 295.8V 295.8V 295.8V 295.8V 295.8V 295.8V 295.8V 295.8V
ARRAY MAX VOC 331.8V 331.8V 331.8V 331.8V 331.8V 331.8V 331.8V 331.8V
ARRAY ISC 10.81A 10.81A 10.81A 10.81A 10.81A 10.81A 10.81A 10.81A
ARRAY STC POWER 10,320W 10,320W
ARRAY PTC POWER 9,782W 9,782W
MAX AC CURRENT 48A 48A
MAX AC POWER 11,500W 11,500W
DERATED (CEC) AC POWER 9,489W 9,489W
ARRAY STC POWER 20,640W
ARRAY PTC POWER 19,564W
MAX AC CURRENT 48A 48A
MAX AC POWER 23,000W
DERATED (CEC) AC POWER 18,978W
BILL OF MATERIALS
CATEGORY MAKE MODEL NUMBER REF QTY UNIT QTY/UNIT DESCRIPTION
MODULE REC SOLAR REC430AA PURE 2 PM1-48 48 PIECES 1 REC SOLAR REC430AA PURE 2 430W 120 HALF-CUT CELLS, MONOCRYSTALLINE SILICON
INVERTER TESLA 1707000-xx-y 11.5 KW I1-2 2 PIECES 1 TESLA 1707000-xx-y 11.5 KW 11500W INVERTER
BACKUP GATEWAY TESLA GATEWAY 3 BG1-2 2 PIECES 1 TESLA GATEWAY 3
DISCONNECT EATON DG222URB SW1-2 2 PIECES 1 EATON DG222URB, NON FUSED, 2-POLE, 60A, 240VAC OR EQUIVALENT
PRODUCTION METER GENERIC MANUFACTURER GEN-METER-80A M1-2 2 PIECES 1 ELECTRICAL METER, OWNER APPROVED
POWER OPTIMIZER TESLA MCI-1 MCI1-16 16 PIECES 1 TESLA MCI-1 POWER OPTIMIZER
WIRING GEN-10-AWG-PV-WIRE-CU WR1 720 FEET 1 10 AWG PV WIRE, COPPER (POSITIVE AND NEGATIVE)
WIRING GEN-6-AWG-BARE-CU WR1 360 FEET 1 6 AWG BARE, COPPER (GROUND)
WIRING GEN-10-AWG-THWN-2-CU-RD WR2 160 FEET 1 10 AWG THWN-2, COPPER, RED (POSITIVE)
WIRING GEN-10-AWG-THWN-2-CU-BLK WR2 160 FEET 1 10 AWG THWN-2, COPPER, BLACK (NEGATIVE)
WIRING GEN-10-AWG-THWN-2-CU-GR WR2 40 FEET 1 10 AWG THWN-2, COPPER, GREEN (GROUND)
WIRING GEN-6-AWG-THWN-2-CU-RD WR3-5 30 FEET 1 6 AWG THWN-2, COPPER, RED (LINE 1)
WIRING GEN-6-AWG-THWN-2-CU-BLK WR3-5 30 FEET 1 6 AWG THWN-2, COPPER, BLACK (LINE 2)
WIRING GEN-6-AWG-THWN-2-CU-WH WR3-5 30 FEET 1 6 AWG THWN-2, COPPER, WHITE (NEUTRAL)
WIRING GEN-10-AWG-THWN-2-CU-GR WR3-5 30 FEET 1 10 AWG THWN-2, COPPER, GREEN (GROUND)
WIRING GEN-3/0-AWG-THWN-2-CU-RD WR6 10 FEET 1 3/0 AWG THWN-2, COPPER, RED (LINE 1)
WIRING GEN-3/0-AWG-THWN-2-CU-BLK WR6 10 FEET 1 3/0 AWG THWN-2, COPPER, BLACK (LINE 2)
WIRING GEN-3/0-AWG-THWN-2-CU-WH WR6 10 FEET 1 3/0 AWG THWN-2, COPPER, WHITE (NEUTRAL)
WIRING GEN-6-AWG-THWN-2-CU-GR WR6 10 FEET 1 6 AWG THWN-2, COPPER, GREEN (GROUND)
WIREWAY GEN-EMT-0.75'' DIA WW3-5 30 FEET 1 EMT CONDUIT, 0.75'' DIA
WIREWAY GEN-EMT-2'' DIA WW6 10 FEET 1 EMT CONDUIT, 2'' DIA
OCPD GENERIC MANUFACTURER GEN-CB-60A-240VAC CB1-2 2 PIECES 1 CIRCUIT BREAKER, 60A, 240VAC
TRANSITION BOX GENERIC MANUFACTURER GEN-AWB-TB-4-4X SD1-2 2 PIECES 1 TRANSITION/PASS-THROUGH BOX, WITH 4 TERMINAL BLOCKS
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
E-602.00
DESIGN TABLES
Signed 10/28/2024
ELECTRICAL SHOCK HAZARD
TERMINALS ON THE LINE AND
LOAD SIDES MAY BE ENERGIZED
IN THE OPEN POSITION
WARNING
LABEL 1
AT EACH DISCONNECTING MEANS FOR
PHOTOVOLTAIC EQUIPMENT (2" X 4").
[NEC 690.13].
POWER SOURCE
OUTPUT CONNECTION
DO NOT RELOCATE THIS
OVERCURRENT DEVICE
WARNING
LABEL 2
AT POINT OF INTERCONNECTION
OVERCURRENT DEVICE (2" X 4").
[NEC 705.12(B)(3)(2)].
LABEL 4
AT EXPOSED RACEWAYS, CABLE TRAYS, AND OTHER WIRING
METHODS; SPACED AT MAXIMUM 10 FT SECTION OR WHERE
SEPARATED BY ENCLOSURES, WALLS, PARTITIONS, CEILINGS,
OR FLOORS (5 3/4" X 1 1/8").
[NEC 690.31(G)]
RAPID SHUTDOWN
SWITCH FOR
SOLAR PV SYSTEM
LABEL 5
AT RAPID SHUTDOWN DISCONNECT SWITCH (5 1/4" X 2").
[NEC 690.56(C)(3)].
LABEL 9
AT EACH AC DISCONNECTING MEANS
(4" X 1").
NOTE:THE DIRECTORY STICKER WILL BE
PRINTED IN RED WITH WHITE LETTERING
[NEC 690.13(B)].
LABEL 10
AT EACH DC DISCONNECTING MEANS
(4" X 1").
[NEC 690.13(B)].
LABELING NOTES
1.1 LABELING REQUIREMENTS BASED ON THE 2023 NATIONAL ELECTRICAL CODE,
INTERNATIONAL FIRE CODE 608.12, OSHA STANDARD 1910.145, ANSI Z535
1.2 MATERIAL BASED ON THE REQUIREMENTS OF THE AUTHORITY HAVING
JURISDICTION.
1.3 LABELS TO BE OF SUFFICIENT DURABILITY TO WITHSTAND THE ENVIRONMENT
INVOLVED.
1.4 LABELS TO BE A MINIMUM LETTER HEIGHT OF 3/8” AND PERMANENTLY AFFIXED.
1.5 ALERTING WORDS TO BE COLOR CODED. “DANGER” WILL HAVE RED
BACKGROUND; “WARNING” WILL HAVE ORANGE BACKGROUND; “CAUTION” WILL HAVE
YELLOW BACKGROUND. [ANSI Z535]
1.6 ALL SIGNAGE MUST BE PERMANENTLY ATTACHED AND BE WEATHER
RESISTANT/SUNLIGHT RESISTANT AND CANNOT BE HAND-WRITTEN PER NEC 110.21(B)
DIRECTORY
PERMANENT PLAQUE OR DIRECTORY PROVIDING THE LOCATION OF THE SERVICE
DISCONNECTING MEANS AND THE PHOTOVOLTAIC SYSTEM DISCONNECTING
MEANS IF NOT IN THE SAME LOCATION (5 3/4" X 1 1/8").
[NEC 690.56(B)]
WHERE THE PV SYSTEMS ARE REMOTELY LOCATED FROM EACH OTHER, A
DIRECTORY IN ACCORDANCE WITH 705.10 SHALL BE PROVIDED AT EACH PV
SYSTEM DISCONNECTING MEANS.
PV SYSTEM EQUIPMENT AND DISCONNECTING MEANS SHALL NOT BE INSTALLED IN
BATHROOMS
[NEC 690.4(D),(E)]
CAUTION
MULTIPLE SOURCES OF POWER
LABEL 6
AT UTILITY METER (5 3/4" X 1 1/8")
[NEC 690.56(B)]
WARNING
TRIPLE POWER SUPPLY
SOURCES: UTILITY GRID
BATTERY AND PV SOLAR
ELECTRIC SYSTEM
LABEL 7
AT POINT OF INTERCONNECTION
(2 3/4" X 1 5/8").
[NEC 705.12(B)(3)]
WARNING
SOLAR ELECTRIC
CIRCUIT BREAKER
IS BACKFED
LABEL 8
AT POINT OF
INTERCONNECTION
(2" X 1").
[NEC 705.12(B)(3)]
PHOTOVOLTAIC POWER SOURCE
LABEL 11
AT POINT OF INTERCONNECTION, MARKED
AT DISCONNECTING MEANS (4" X 2").
[NEC 690.54]
AC DISCONNECT
PHOTOVOLTAIC SYSTEM
POWER SOURCE
RATED AC
OUTPUT CURRENT
NOMINAL OPERATING
AC VOLTAGE
AMPS
VOLTS
LABEL 12
AT EACH DC DISCONNECTING
MEANS (3" X 4").
[NEC 690.53].
MAXIMUM VOLTAGE
MAX CIRCUIT CURRENT
VDC
AMPS
DIRECT CURRENT
PHOTOVOLTAIC POWER SOURCE
48
240
10.81
331.8
PHOTOVOLTAIC SOLAR
DC DISCONNECT
PHOTOVOLTAIC SOLAR
AC DISCONNECT
SOLAR PV SYSTEM
EQUIPPED WITH
RAPID SHUTDOWN
TURN RAPID SHUTDOWN SWITCH TO
THE "OFF" POSITION TO SHUT DOWN
CONDUCTORS OUTSIDE THE ARRAY
CONDUCTORSWITHIN THE ARRAY
REMAIN ENERGIZED IN SUNLIGHT
SOLAR ELECTRIC
PV PANELS
LABEL 3
AT RAPID SHUTDOWN SYSTEM
(3 3/4" X 5 1/4"). [NEC 690.56(C)(1)(A)].
INTERACTIVE PHOTOVOLTAIC SYSTEM CONNECTED
PHOTOVOLTAIC SYSTEM DISCONNECT LOCATED
NW/SE SIDE OF THE HOUSE
NOTE: DIRECTORY STICKER WILL BE PRINTED
IN RED AND WHITE
LABEL 13
AT POINT OF INTERCONNECTION, MARKED
AT DISCONNECTING MEANS (4" X 2").
[NEC 690.54]
AC DISCONNECT
PHOTOVOLTAIC SYSTEM
POWER SOURCE
RATED AC
OUTPUT CURRENT
NOMINAL OPERATING
AC VOLTAGE
AMPS
VOLTS
48
240
LABEL 14
AT EACH DC DISCONNECTING
MEANS (3" X 4").
[NEC 690.53].
MAXIMUM VOLTAGE
MAX CIRCUIT CURRENT
VDC
AMPS
DIRECT CURRENT
PHOTOVOLTAIC POWER SOURCE
10.81
331.8
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
E-603.00
PLACARDS
UTILITY METER
FRONT BACK
!CAUTION!
POWER TO THIS BUILDING IS ALSO SUPPLIED
FROM ROOF MOUNTED SOLAR ARRAYS WITH
SAFETY DISCONNECTS AS SHOWN:
N
E
W
S
ESS IN AN ESS
ENCLOSURE (INSIDE)
BACKUP GATEWAY 3
(INSIDE)
AC DISCONNECT
LITHIUM ION
HAZARDS: FIRE, EXPLOSION, CHEMICAL,
ELECTRICAL, AND STORAGED ENERGY
NO SUPPRESSION SYSTEM INSTALLED
INSTALLER CONTACT:
VALLEY SOLAR (413) 584-8844
ESS LOCATION:
LABEL 15
ESS DISCONNECT LABEL PER NEC 706.7(0)
AT ESS CLOSET DOOR IN INTERIOR AND PV
AC DISCONNECTING MEANS AT EXTERIOR
ENERGY STORAGE
SYSTEM
PROUDLY INSTALLED BY
VALLEY SOLAR 413-584-8844
DRIVEWAY
MAIN ELECTRICAL
PANELS (INSIDE)
CUSTOMER
OWNED METER
PV ARRAY
PV ARRAY
PV ARRAY
PV ARRAYSPRING STREETDRIVEWAY
AC DISCONNECT
CUSTOMER
OWNED METER
BACKUP GATEWAY 3
(INSIDE)
Signed 10/28/2024
GENERAL NOTES
1.FIELD VERIFY ALL MEASUREMENTS
2.ITEMS BELOW MAY NOT BE ON THIS PAGE
3.THE SOLAR PANELS ARE LESS THAN 4 FEET
S-501
D4
13
54
252423
8
27
2
ROOF SLOPE9
217
6
10
10
20
12141315182211
S-501
D5
SHEET KEYNOTES
1.ROOF MATERIAL: STANDING SEAM METAL
2.ROOF STRUCTURE: COLLAR TIE
3.ATTACHMENT TYPE: S!5 S-5-U CLAMPS
4.MODULE MANUFACTURER: REC SOLAR
5.MODULE MODEL: REC430AA PURE 2
6.MODULE LENGTH: 73.4''
7.MODULE WIDTH: 40.9''
8.MODULE WEIGHT: 47.6 LBS.
9.SEE SHEET A-103 FOR DIMENSION(S)
10.MIN. FIRE OFFSET: 3' FROM RIDGE/RAKE, 18" FROM
HIPS/VALLEY
11.RAFTER SPACING: 16 IN. O.C.
12.RAFTER SIZE: 2X12 IN NOMINAL
13.LAG BOLT DIAMETER: 5/16 IN.
14.LAG BOLT EMBEDMENT: 3 IN.
15.TOTAL # OF ATTACHMENTS: 192.
16.TOTAL AREA: 1000.69 SQ. FT.
17.TOTAL WEIGHT: 2540.82 LBS.
18.WEIGHT PER ATTACHMENT: 13.23 LBS.
19.DISTRIBUTED LOAD: 2.54 PSF
20.MAX. HORIZONTAL STANDOFF: 48 IN.
21.MAX. VERTICAL STANDOFF: IN ACCORDANCE WITH
MODULE MANUFACTURER'S INSTRUCTIONS.
22.STANDOFF STAGGERING: YES
23.RAIL MANUFACTURER (OR EQUIV.): IRONRIDGE
24.RAIL MODEL (OR EQUIVALENT): AIRE A1
25.RAIL WEIGHT: 0.436 PLF
26.MAX. RAFTER SPAN: N/A.
27.MODULE CLEARANCE: 3 IN. MIN., 6 IN. MAX.
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
S-501.00
ASSEMBLY DETAILS
D4 DETAIL (TRANSVERSE)
NOT TO SCALE D5 DETAIL (LONGITUDINAL)
NOT TO SCALE
D1 RACKING DETAIL (TRANSVERSE)
NOT TO SCALE
D3 RACKING DETAIL (TOP)
NOT TO SCALE
D2 RACKING DETAIL (LONGITUDINAL)
NOT TO SCALE
Signed 10/28/2024
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-001.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-002.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-003.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-004.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-005.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-006.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-007.00
RESOURCE DOCUMENT
B F
A D E
2
3
UNAUTHORIZED USE OF THIS
DRAWING SET WITHOUT WRITTEN
PERMISSION FROM CONTRACTOR IS IN
VIOLATION OF U.S. COPYRIGHT LAWS
AND WILL BE SUBJECT TO CIVIL
DAMAGES AND PROSECUTIONS.
NEW PV SYSTEM:
20.640 kWp DC / 23.000 kWp AC
ENGINEER OF RECORD
E.K.DESIGN BY:
10.25.2024
M.M.
THE BUIILDING TRUST
LLC.
83 SPRING STREET,
FLORENCE, MA 01062
PAPER SIZE: 11" x 17" (ANSI B)
A C D E G H
B C F G H
1
4
5
6
CONTRACTOR
VALLEY SOLAR, LLC
PHONE:
LIC. NO.:
DATE:
CHECKED BY:
REVISIONS
HIC. NO.:
ELE. NO.:
413-584-8844
116 PLEASANT ST SUITE 321,
EASTHAMPTON, MA 01027
ADRESS:
APN: 22B-069-001
186338
664A1
R-008.00
RESOURCE DOCUMENT