18 FORRESTER ST - BUILDING INSPECTION The Commonwealth of Massachusetts c c q,y IGFs
° Board of Building Regulations and Standards (031ti'� FOR
`@aSPE MU)ICIP�ILITY
Massachusetts State Building Code, 780 CMR
p, 11tT�E
Building Permit Application To Construct, Repair Renovate Or'�i�iMh u kevised Mar 2011
( One- or Two-Family Dwelling
This Section For Official Use Only
Building Permit Number: Date Applie .
l^ Building Official(Print Name) Signature Date
1 SECTION 1: SITE INFORMATION
1.1 Property Address: 1.2 Assessors Map& Parcel Numbers
o t
1R F tLb+G(' Sd' ,$Q GI'(1 ffick 4191
l.la is this an accepted street?yes x no Map Number Parcel Number
1.3 Zoning Information: 1.4 Property Dimensions:
Zoning District Proposed Use Lot Area(sq ft) Frontage(ft)
1.5 Building Setbacks(ft)
Front Yard Side Yards Rear Yard
Acquired Provided Required Provided Required Provided
1.6 Water Supply: (M.G.L c.40,§54) 1.7 Flood Zone Information: 1.8 Sewage Disposal System:
Zone: _ Outside Flood Zone? .
Public❑ Private 13Check if yes❑ Municipal❑ On site disposal system ❑
SECTION 2: PROPERTY OWNERSHIP'
2.3) _orl,S`Necord: �T � O F;0(fCo1A O4. lsyl�d11 1 ftU. 0 1910
Name(Print) _ City,State,ZIP ,
'� - 4749-9411-124$9' Den q" J"molI•c4
No.and 2Veet Telephone Email Address
SECTION 3:DESCRIPTION OF PROPOSED WORK''(check all that apply)
New Construction ❑ Existing Building❑ Owner-Occupied ❑ Repairs(s) ❑ 1 Alteration(s) ❑ 1 Addition ❑
Demolition ❑ Accessory Bldg. ❑ Number of Units I Other fV Specify:
Brief Description of Proposed Work': Install Solar Array Lagged into Rafters
SECTION 4: ESTIMATED CONSTRUCTION COSTS - -
Item Estimated Costs: Official Use Only
Labor and Materials
1.Building $ 011 Soo 1. Building Permit Fee: $ Indicate how fee is determined:
2.Electrical $ ElStandard City/Town Application Fee
y`� ❑ Total Project Cost' (Item 6)x multiplier x
3.Plumbing $ 2. Other Fees: $
4.Mechanical (HVAC) $ List:
5.Mechanical (Fire $
Suppression) Total All Fees: $
^U Check No. Check Amount: Cash Amount:
6.Total Project Cost: $ a LAIOQD ❑Paid in Full ❑ Outstanding Balance Due:
,0,- -' To ANIS u S �unccsrl�� f Zd c l
SECTION 5: CONSTRUCTION SERVICES
5.1 Construction Supervisor License(CSL)
107691 1/26/18
Daniel Goodridge License Number Expiration Date
Name of CSL Holder U
60 Carlisle List CSL Type(see below)
No.and Street Type Description
Bedford Ma 01730 U Unrestricted(Buildings u to 35,000 cu.ft.
R Restricted 1&2 Family Dwelling
City/Town,State,ZIP M Masonry
RC Roofing Covering
Signature WS Window and Siding
SFSolid Fuel Burning Appliances
508-614-0146 daniel.goodridge@astrumsolar.com I Insulation
Telephone Email address D Demolition
5.2 Registered Home Improvement Contractor(AIC) 168228
1/19/17
Astrum Solar/Direct Energy Solar
HIC Registration Number Expiration Date
HIC Company Name or HIC Registrant Name
8955 H ne Ste 508 daniel.goodridge@astrumsolar.com
o.and Street Email address
l- 508-614-0146
—C—it /To.. State Z Telephone
.SEC—T1O : ORKERS' COMPENSATION INSURANCE AFFIDAVIT(M.G.L.c.152.§ 25C(6))
Workers Compensation Insurance affidavit must be completed and submitted with this application. Failure to provide
this affidavit will result in the denial of the Issuance of the building permit.
Signed Affidavit Attached? Yes .......... ❑ No ...........❑
SECTION 7a: OWNER AUTHORIZATION TO BE COMPLETED WHEN
OWNER'S AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT /
I,as Owner of the subject property,hereby authorize 5 - d�rUv
to act on my behalf,in all matters relative to work aut rized by this building permit application.
Print Owner's Name(Electronic Signature) Date
SECTION 7b: OWNER' OR AUTHORIZED AGENT DECLARATION
By entering my name below,I hereby attest under thepains and m
pen ties of perjury that all of the infor_ ation -
contat m this application is tru and accurate to th best
`f my k wledge and understanding.
�S r2v✓�. �b�l✓1'��
Print Owner's or Authorized Agent's Name(Electronic Signa Date
NOTES:
I. An Owner who obtains a building permit to do his/her own work,or an owner who hires an unregistered contractor
(not registered in the Home Improvement Contractor(HIC)Program),will not have access to the arbitration
program or guaranty fund under M.G.L.c. 142A. Other important information on the HIC Program can be found at
www.mass. og v/oca Information on the Construction Supervisor License can be found at www.mass.gov/dos
2. When substantial work is planned,provide the information below:
Total floor area(sq. ft.) (including garage,finished basement/attics,decks or porch)
Gross living area(sq. ft.) Habitable room count
Number of fireplaces Number of bedrooms
Number of bathrooms Number of halfibaths
Type of heating system Number of decks/porches
Type of cooling system Enclosed Open
3. "Total Project Square Footage"may be substituted for"Total Project Cost"
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November 14, 2015
Town of Salem Building Department
93 Washington Street
Salem MA 01970
RE: Den Jin Set Residence Solar Installation SO— 150920-1
18 Forrester Street
Salem MA 01970
Structural Assessment of Roof Framing
MPP Project No: 15-3028
Dear Mr. Taboubi:
Pursuant to your request, MPP Engineers has performed a limited structural evaluation of the roof
framing at the above referenced site to determine if the roof has adequate capacity to support the proposed
solar panels. Our analysis was based on the framing information and configurations provided by Direct
Energy Solar. It is our understanding that the structural components of the existing roof framing are in fair
good condition. It is further understood that all existing connections between the various roof framing
members, including ceilingjoists and rafters are adequate to resist the current loading conditions and
behave in the manner that a typical rafter and ceiling tie system is intended to behave prior to installation
of the solar panels.
Results
Roofs—D&E(Hip roofs)—NOT adequate to support the proposed solar panels
• Provide sintering/reinforcement with new 2x6 member for every other rafter with horizontal span
exceeding 9 feet on the side where solar panels will be installed. Reinforcement shall be the full
length of the rafter and be installed flushed with the ridge and extended down towards the eve.
• Attach all reinforcements using(2) SDS '/a" x 3" long screws @ 12" O.C. or(2) 16D common
nails @ 6"O.C.for full length of member.
• If the reinforcement for the rafter cannot be installed as a single piece, it may be installed as two
separate pieces provided there is a minimum 4 feet of lap.
Roof—F—NOT adequate to support the proposed solar panels
• Provide sistering/reinforcement with new 2x6 member for all rafters with horizontal span
exceeding 9 feet on the side where solar panels will be installed. Reinforcement shall be the full
length of the rafter and be installed flushed with the ridge and extended down towards the eve.
• Attach all reinforcements using(2) SDS Yd'x 3" long screws @ 12" O.C. or(2) 16D common
nails @ 6" O.C.for full length of member.
• If the reinforcement for the rafter cannot be installed as a single piece, it may be installed as two
separate pieces provided there is a minimum 4 feet of lap.
MPP Engineers, LLC 1 34 South Main Street, Suite D Allentown,NJ 08501
609-489-5511 (office) I www.mppengineers.com 1609-489-5916 (fax)
Den Jin Set Residence Solar Installation
18 Forrester Street
Salem MA 01970
Structural Data and Code Information
Our analysis was performed in accordance with the requirements of the 780 CMR 51.00:Massachusetts
Residential Code which has adopted the 2009 International Residential Code with Massachusetts
amendments. Per Table R301.2 (1),the ground snow load to be used for each town is in accordance with
Table R301.2 (5). Similarly, the wind speed for each town is in accordance with Table R301.2 (4). The
roof framing was analyzed in accordance with Section R104.11 of the of the 2009 International
Residential Code which allows for alternate approved design such as using the ASCE 7 code for
determining actual snow loads on roofs (e.g. deriving flat or sloped roof snow loads from the specified
ground snow load referenced in Table R301.2(5)). Wood members were analyzed and designed in
accordance with the NDS 2005.
The roof area for the solar panels of this residence is framed in a gable configuration with conventional 2x
roof rafters. Roof framing details available have been considered the same for all roofs as per information
provided by Direct Energy Solar. The existing roof structure is in fair condition and is assumed to have
two layer of asphalt shingles. The pertinent data is listed below:
Roofs—D&E(13 Panels Total):
Rafters: TRUE 1.5"x 6.25" (#2 Spruce-Pine Fir Assumed)
Spacing: 24" O.C.
Roof Slope: 27 Degrees
Horizontal Projected
Length of Rafter
(Horizontal Projection): 11.00 feet
Ceiling Joists: Present
Collar Ties: NOT Present
Roof Sheathing: Wood Boards and plywood sheathing
Condition of Framing: Fair
Roof Covering: Asphalt Shingles
Roof—F(4 Panels Total):
Rafters: TRUE 1.5" x 6.25" (#2 Spruce-Pine Fir Assumed)
Spacing: 24" O.C.
Roof Slope: 27 Degrees
Horizontal Projected
Length of Rafter
(Horizontal Projection): 15.00 feet
Ceiling Joists: Present
Collar Ties: NOT Present
Roof Sheathing: Wood Boards and plywood sheathing
Condition of Framing: Fair
Roof Covering: Asphalt Shingles
Ground Snow Load,Pg: 40 PSF from Table R301.2 (5)of Massachusetts Residential Code
Importance Factor,I: 1.0
Exposure Factor, Ce: 1.0(Conservatively taken as Partially Exposed)
Thermal Factor,Ct: 1.1 with Panels(Cold Roof)
Den Jin Set Residence Solar Installation
18 Forrester Street
Salem MA 01970
1.0 existing condition (Warm Roof)
Design Snow Loads
On sloped roof: 28.00 PSF(Existing—Unobstructed Warm Roof)
22.07 PSF(New—Slippery Surface on Cold Roof)
Wind Speed: 100 MPH from Table R301.2 (4) of Massachusetts Residential Code
Exposure B
Analysis Results:
General Considerations
➢ Materials such as metal roofs or solar panels are considered slippery surfaces. Since the solar
panels are mounted slightly above the roof line, it would be conservative to consider a thermal
factor Ct of 1.1,treating the panel surface as a cold roof rather than a warm roof. Based on the
roof slope and considering it as a slippery surface,the snow load is reduced by 21% compared
with the snow loading directly on the existing shingled roof surface. This reduction equates to
5.93 PSF which essentially offsets the weight of the solar panels.
Gravity Loading:
Roofs—D&E (Hip roofs)—NOT adequate to support the proposed solar panels
• Provide sistering/reinforcement with new 2x6 member for every other rafter with horizontal span
exceeding 9 feet on the side where solar panels will be installed. Reinforcement shall be the full
length of the rafter and be installed flushed with the ridge and extended down towards the eve.
• Attach all reinforcements using(2) SDS '/4"x 3" long screws @ 12" O.C. or(2) 16D common
nails @ 6"O.C. for full length of member.
• If the reinforcement for the rafter cannot be installed as a single piece, it may be installed as two
separate pieces provided there is a minimum 4 feet of lap.
Roof—F—NOT adequate to support the proposed solar panels
• Provide sistering/reinforcement with new 2x6 member for all rafters with horizontal span
exceeding 9 feet on the side where solar panels will be installed. Reinforcement shall be the full
length of the rafter and be installed flushed with the ridge and extended down towards the eve.
• Attach all reinforcements using(2) SDS '/4" x 3" long screws @ 12"O.C. or(2) 16D common
nails @ 6"O.C. for full length of member.
• If the reinforcement for the rafter cannot be installed as a single piece, it may be installed as two
separate pieces provided there is a minimum 4 feet of lap.
It is our understanding that the panels will be installed using Unirac rail with L-feet(or equal) at
approximately 48 inches on center(e.g. every two to three rafters). The leveling feet will be fastened
directly into the existingjoists with 5/16"diameter lag screws with a minimum embedment of 2.5". in
addition, it is important that the leveling feet support locations be staggered between adjacent panels so
that no single rafter supports more load than under the existing conditions.
Den Jin Set Residence Solar Installation
18 Forrester Street
Salem MA 01970
Wind Loading:
Based on our calculations, the net wind loads imposed on the roof framing with an attachment spacing as
indicated above will be less than the current loading on the roof framing. In addition, provided that the
leveling feet are attached to the roof framing members in a typical staggered fashion,the overall wind
loading imposed on the structure and the individual framing members will not be impacted to any great
extent.
If you have any questions regarding this matter, please feel free to contact my office at 609-489-5511.
We appreciate the opportunity to assist you with this evaluation.
Sincerely,
MPP Engineers, LLC
�jlslshKA Math
Krishna J Allam E.I.T.
���SH OF,!fgS
ASHD
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No. 35
D,i,9FG/STEPE��FQ
FSS/CNAL
Ashutosh Patel, P.E.
MA Prof. Eng. Lic.No. 48235
ATTACHMENTS:
1. Structural Reinforcement Sketch—New Sistering
The Commonwealth of Massachusetts �Pflnt Form
Department of Industrial Accidents
Office of Investigations
I Congress Street,Suite 100
Boston, MA 02114-2017
www.mass.gov/dia
Workers' Compensation Insurance Affidavit: Builders/Contractors/Electricians/Plumbers
Applicant Information Please Print Leelb1V
Name(Business/Organization/Individual): Direct Energy Solar
Address: 5 Lyberty way
City/State/Zip: Westford, MA 01886 Phone #:508-614-0146
Are you an employer?Check the appropriate box:
✓ 25 4. I am a general contractor and I Type of project trequired):
1.❑ I am a employer with ❑ g 6. ❑ New construction
employees(full and/or part-time).* have hired the sub-contractors
2.❑ I am a sole proprietor or partner- listed on the attached sheet. 7. ❑ Remodeling
ship and have no employees These sub-contractors have g, ❑ Demolition
working for me in any capacity. employees and have workers'
[No workers' comp. insurance comp. insurance.:
9. ❑ Building addition
required.] 5. ❑ We are a corporation and its 10.❑ Electrical repairs or additions
3.❑ I am a homeowner doing all work officers have exercised their 11.❑ Plumbing repairs or additions
myself [No workers' comp. right of exemption per MGL 12.❑ Roof repairs
insurance required.] t c. 152, §1(4), and we have no
employees. [No workers' 13.❑✓ OtherPV Solar Installation
comp. insurance required.]
*Any applicant that checks box#1 must also fill out the section below showing their workers'compensation policy information.
t Homeowners who submit this affidavit indicating they are doing all work and then hire outside contractors must submit a new affidavit indicating such.
(Contractors that check this box must attached an additional sheet showing the name of the subcontractors and state whether or not those entities have
employees. If the sub-contractors have employees,they must provide their workers'camp.policy number.
I am an employer that is providing workers'compensation insurance for my employees. Below is the policy and job site
information.
Insurance Company Name:Zurich American Insurance Co.
Policy#or Self-ins. Lic.#: 59536900 Expiration Date:1/1/2016
Job Site Address:18 Forrester St City/State/Zip:Salem Ma 01970
Attach a copy of the workers' compensation policy declaration page(showing the policy number and expiration date).
Failure to secure coverage as required under Section 25A of MGL c. 152 can lead to the imposition of criminal penalties of a
fine up to$1,500.00 and/or one-year imprisonment,as well as civil penalties in the form of a STOP WORK ORDER and a fine
of up to$250.00 a day against the violator. Be advised that a copy of this statement may be forwarded to the Office of
Investigations of the DIA for insurance coverage verification.
Ido hereliy certi under thepains and enaltieso er'u that the in ormation provided above is true and correct.
Signature:
Phone#:508-208-1998
Official use only. Do not write in this area,to be completed by city or town ofciaL
City or Town: Permit/License#
Issuing Authority(circle one):
1.Board of Health 2.Building Department 3.City/Town Clerk 4.Electrical Inspector 5.Plumbing Inspector
6.Other
Contact Person: Phone#:
• a
Information and Instructions
Massachusetts General Laws chapter 152 requires all employers to provide workers' compensation for their employees.
Pursuant to this statute, an employee is defined as"...every person in the service of another under any contract of hire,
express or implied,oral or written."
An employer is defined as"an individual,partnership,association, corporation or other legal entity,or any two or more
of the foregoing engaged in a joint enterprise,and including the legal representatives of a deceased employer,or the
receiver or trustee of an individual,partnership, association or other legal entity,employing employees. However the
owner of a dwelling house having not more than three apartments and who resides therein,or the occupant of the
dwelling house of another who employs persons to do maintenance,construction or repair work on such dwelling house
or on the grounds or building appurtenant thereto shall not because of such employment be deemed to be an employer."
MGL chapter 152, §25C(6)also states that"every state or local licensing agency shall withhold the issuance or
renewal of a license or permit to operate a business or to construct buildings in the commonwealth for any
applicant who has not produced acceptable evidence of compliance with the insurance coverage required."
Additionally, MGL chapter 152, §25C(7)states"Neither the commonwealth nor any of its political subdivisions shall
enter into any contract for the performance of public work until acceptable evidence of compliance with the insurance
requirements of this chapter have been presented to the contracting authority."
Applicants
Please fill out the workers' compensation affidavit completely,by checking the boxes that apply to your situation and,if
necessary,supply sub-contractor(s)name(s), address(es)and phone number(s)along with their certificate(s)of
insurance. Limited Liability Companies(LLC)or Limited Liability Partnerships(LLP)with no employees other than the
members or partners,are not required to carry workers' compensation insurance. If an LLC or LLP does have
employees,a policy is required. Be advised that this affidavit may be submitted to the Department of Industrial
Accidents for confirmation of insurance coverage. Also be sure to sign and date the affidavit. The affidavit should
be returned to the city or town that the application for the permit or license is being requested,not the Department of
Industrial Accidents. Should you have any questions regarding the law or if you are required to obtain a workers'
compensation policy,please call the Department at the number listed below. Self-insured companies should enter their
self-insurance license number on the appropriate line.
City or Town Officials
Please be sure that the affidavit is complete and printed legibly. The Department has provided a space at the bottom
of the affidavit for you to fill out in the event the Office of Investigations has to contact you regarding the applicant.
Please be sure to fill in the permitilicense number which will be used as a reference number. In addition, an applicant
that must submit multiple permit/license applications in any given year,need only submit one affidavit indicating current
policy information(if necessary)and under"Job Site Address"the applicant should write"all locations in (city or
town)."A copy of the affidavit that has been officially stamped or marked by the city or town may be provided to the
applicant as proof that a valid affidavit is on file for future permits or licenses. A new affidavit must be filled out each
year. Where a home owner or citizen is obtaining a license or permit not related to any business or commercial venture
(i.e. a dog license or permit to burn leaves etc.)said person is NOT required to complete this affidavit.
The Office of Investigations would like to thank you in advance for your cooperation and should you have any questions,
please do not hesitate to give us a call.
The Department's address,telephone and fax number:
The Commonwealth of Massachusetts
Department of Industrial Accidents
Office of Investigations
I Congress Street, Suite 100
Boston, MA 02114-2017
Tel. # 617-727-4900 ext 406 or 1-877-MASSAFE
Revised 7-2010 Fax# 617-727-7749
www.mass.gov/dia
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f Massachisetts-Department of Public Safety v
Board of Building Regulations and Standards
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License:C5-107691
DANIEL K GOODAMC-,�i..,.
Bedford MA 01790
Expiration
commissioner
01/Z8/2018
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Set Residence Salem
18 Forrester St 93 Washington Street Salem MA 01970
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Pone,Weigh[ 3JA9165 Sprean Diztdhuretl Load 34 par wood—j' rP=r �b✓Mer a/gyp
"em ,a'a F.at., 531,1 Rro)SuppoR 2"x6"raker ��� X111 �^
Roding Weight 56165 1,t.m Pohl Loodip-larm,, ah /s/�peF a Lug
Mlvgroodner Welghr 13 l lbz Total number a)Roof Penetrations 2aye
MaiAllvwvble Roil Overhang 16in
allowing'or pe,',on thread depth
'we
Variables i.gvgsopPo nMembermre s',"m',
h 8ft 15k PParet on wIf.,=1 14.9 pif secondan I
fo 10k Wlnd oownform 14.9 pif Pnrt Vpllfr -la pit
Roof Pltth o7 degreez Wheeled, -18 pif 0 5A Load Combiwtiom wMav 120 Elf
V 1W arm act 1 01 D2 D3 Ilplik Mat Span ak
Snowl.ed Re pif app—EategWy g Oead loaMI- 116a
3.a 3a1p'lff
Attual Spen 4h
Roofbar. 3 1 1 Snow loa0.0 300 Rd 48.165 veG
E 335 1 1 DWLe 14.9 11.2 mf Ru Mike Lo F Q
Total Load Per 183 44,6 If Repuhed Thread Depth 0.731, ¢ ~
Distrib TL 49.2 119.9 Aatual Thread Depth 2RSin O
an
•DWI:Des's,Who'm.
••Abio,me valued am Melwrcd)m the cmm,ated guarades off up;egad wLPl'ry
Glossary of Terms for Load Calculations
n emldi,¢..R. a Aalmtmem faros MrnelRM
Ranemgleob urumma
Rwt"., R..,each I Imponan=..........xmd.l..W-mence
Rwlvwvrdspeea
DESCRIPTION OF
w Dee snow gwa MMarbled- perpena letlarra6.amr
approve, g w m
Rwrmn. Re pow road oowmor,. WORK&LOAD
.x<atupre.fam. Rap .= CALCULATIONS
apprm,e snF.cuengm nppran a�.rmhvrm,�.mpemm�v aweulu
a .wof.— xa orequ omvm....Inow.r. mare.ry
a vP1l)e Nrtoaign upukRccvvm
xar Topogra ,, upor PV-2.2
Electrical Diagram for Set-5.7 kW DC Photovoltaic Solar Array National Grid Account Number-1308976017
5
o w
d
i7 iE
AC Dboommet within l0'of the UtmN Meter war o
C � �
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Set,Den An.Residence
BnnMeSAJeTaal 18 Forrester St.Salem,MA 01970 s a
x°]WR t Phare rbrt L[a
19 MPAtlMaWhrvahaf Beea0nmMea RtPh
Swuh xM VPese,lB Yanp Mlery0hM1Outlon[oareaMn
X ftfine,the mmaMePle ft) Manded4aent roue gmtltervrta chrome,
Enplane BUvo inverter utierymeter EATONMalemeaci
Groae Fault PmteGbn hteMahe Wthh EATON Modelo Wlamn h ue°ah churn
1mMn MoaeF.Mx9V(6llt-SII Pyp°.yy� b101a Wne1
ntaeavoDrtatah: nYl# Mob OG311URB r
9 mrerters Ma Pova n M deNeeac xMVx Enphae nGM 30Amp 15 Amp xnIWC MxStle xM
1nYNny I xamWlacwhee x40/M .a.
9 B1.M= 11.15 tS/MP I Ma acmrent IDN®
w Nan Breaker mureouedm aMntonaWomlWulm1
u n n
a.mn oil Nes Urol is
' -- ----- ------ IS Amp I I 100
I
13),H)-MN1UWx2 Copper mmhemon� I Amp
I I pin-naN.x 2coppreoi CC pp
I MshlNUon of lhel•m�it115'Irrlllam I 1•pvccatlunm OWN
I tvacmdt,1,Wu or: r1p�aVaMM,1�aW r'a,�
(4h0l pw-xxwraa PhMemWua-1 ISA I Grafi eptaax Win Calci i 4��e''�-�.,,T�►
Ixlexo xwpa-mvmx,Mwak' I J
hr Fnphase O.N
Thhanry 10 Parcls/Imvlm Phv lf)PeGmuM `___---.-- ➢MN
---- hln' 41Mrt+x fnppM I
0B161xs%= tis M 5"p Wra Calct WWgI°xtlreMv e I 1Aln.igMillWN.x fappaGmaMl
Chat Breaker P'PVtcamuna
FAT0N MWeIeBllelellx56PI f'aquMUhMetal Waon
°ithtlw,breaha.ft bake, I
(2)15 pop,xpoleamin breassr for M abom I p6 Bare CU I ————_——
—
ppeamp,t-poletlmM heaba for EbtU I Le BB'Graod BB Bare CU I 100Ar BUM
F o
Tyao sA ee'GUWaW t MuaayJLC9040 G n:
Panel o G a
how
ELECTRICAL
DIAGRAM
PV-3
Electrical Diagram�rmet3.7kW DC Pho ovoltaic Solar Array National Grid Acco,m Number-130897601]
ke
vE.�tEmN ro,pv Btake, PV Army Wire Calculations Wim Calct 3
Minimum Wim Size 910 AWG PV Service Wire Calculations o w S
Glmlation for Main W Breaker&Circuih Minimum Wire SlzeW 10AWG Wire Calct
WIRE SONG CALCULATION a
smem CuneMc 1,J 1sRmp
20NECAltle 310 WIRE SONG
,gnAmp,tag1s = za7anmpFWllLoad Aryemge _ 20NEC Article 310
YVw' Za
`oo
M,m BN„a.gmgzoo 120% = xeoamps Source Voltage _ 240 Full Load Amperage _
19
C y A
B.ItmgMam.r.-keaker CI Amps Lead Duty- (Feet)___C 175 Source of Run
w -�
M.aemrBtak,r xao i zoo - NOAmps Load Duly Continuous Lerch of Run(Peep. --.:30
cr,mal= s 1.usx= 11.25NEEM Conduct"Appacitty Tab.le...:Centuries Table
80-15(8(16) Earth Load Duly..._.____.....
oecm<wz= 10 . 1.1xsx= 12.5 Amp: Conductor Ampadty Ta.....: ....:NCo Tonle 310-15(8)(16) ConductorAppactly Table.......
NEC ablers;in Ra-15(B)(16) or Earth
Mnuols
Conduc[m LType.ocati._............:THNNCopper ConduclorAme..... Table.......:NEC Table 310-158 i6 F
Cakuctor Location...___.:ture.9DridDa * Conductor 1-coadon ....
TNHN Copper
mp
ConductorInsulationTemp emrlue:90'C Conductor Location_....per D re:90*
AmbientTempemhue.__ __:2:75*C=7686'F ConductortentTemulatione..rl ere:26-30 C
'., Circuital pemPamle P ase 3 Wim( 'C Ambient Temperature. :2:75-C =78-86'F
CircQty.of Type:Single Phase 3 Wim(2 Phase conductors 8lrewal) Circuit
Type:
Single
Temperature ase 3 ..ine(2 p �
Ory.of nal Cu Current-Carrying arryi C Conductors
Qty of Type:Single Phase 3 Wire(2 pons.conductors 8 rreiAap ¢
Additional Curtem-Carrying Conductors.....:2 Qty of Cunen6Cam/ing Conductors:2 w
Conductor Requirement
Total Gty.Cwrerd-Carrying Corldtztlars....:4 FIN Load Amps...........:190
Conduct"Regltiremer: Load Duty Multiplier.._.:1.25
FID Load Amps___-:10,0 AmbieN Temp Multiplier.:10
Load Duty Multiplier.....:1.25 Oty.Conductors Multiplier:1.0
Ambient Temp.Multiplier.:1.0
Qty.Conductors Multiplier:1.25 Required Conductor]Nips'ry:n 23.75 0
Requ
Terminal Amps......
inuent
Required ConductorAmpauN:15.63 LFulloa Lead Amps.lier__:19.0
Temunal RegwremeN: Load Duty Multiplier 25 >
FEALoadAmps__......:10.0 - EC m
Lend Duty Multiplier.....:1.25 Required Terminal Arnpacity 2375
Selected Conductor.
ReglureclTemurml Arrpatlty:12.5 ConductorAmpaldty :35.0 71
Selected Conductor. Ambient Temp.Derate...-1.0 ttr �L_
Conduct"Ampactty...._.:35.0 Oty.Conductors Derate...:1.0 d 01-T
AmbientTenp.Derete.._.:1.0 -- - �J9.9
Ory.Conductors Derate_.:0.8 Adjusted Ampacity._._.:35.0
SELECTED CONDUCTOR SIZE:10 Awg
Adjusted Ampacity._.....:28.0 2 x Ohms/MIIFt x Length xAmps 2 x 124 x 30 x 23.75 (290
SELECTED CONDUCTOR SIZE:10 Avail VD= _---=1Al �a
2 x OImsfMiIFt x Length x Amps 2 x 1.24 x 75 x 15.63 1000 x Gty Wires;per Phase 1000 x 1
VD= - =L86 Volts Al Load Terminals.....:238.59
1000x Ory Wires per Phase 1000x 1 Actual Percent Vollage Drop.:0.59
Electrical Notes Volts Al Load Terninal5......:238.14
n almmpm.enn sam.a.ee l.ba.a mr x.appmtlne. Actual Percent Voltage Drop.:0.78
zl aE mea.nnN.mvb.mpp.r,rano eras seeweunvBpnmen<,umess
mneml..en,.e.
3I WarFing el,annnrareuntl al new an0 ex6Un[eleErltvlepuipmena aM1vll
with NEC31¢26 m
comply G F Q
Et
6<Il wire rerminnlenx aFall Fe app�oprlvnlylabelea,na revallyvlavble. p p Ce
Ce
11 huld,11n sole nNst-N meCule 0 w ¢
p.rtr,ll�per greune nxg,upvma fttnrerIN
ImNstlen. N
61 M u All to be beasts nmminuauampper GE[vIa WFEg lugger
69pla(C).
11 Nuvea Npew ....mbre,k,,n be Entree at Cenem If Eva per NEC
6eo.6alalpl,
.1.,..El.....rel,th.11 be hE.I.d st'l-nee PC rustler panel'.
6l unmg,gmte.m...d...E.,t be maleate..m.m-H mmol.,per ELECTRICAL
ale
ru Vpnw,-,,N,br..kerm be xuldhlefe,b,ahee per NEC 6ap.6ereum. CALCULATIONS
PV-3.1
String and Conduit Layout
sc
Set,Den lin.Residence Electrical Review o w
38 Forrester St.Salem,MA 01970
Westford,MA Office:Sean Given p w
Reviewed By:Eric Mantle(267-2294637) at a o
Financing:Purchase C 49
(19)LG 30OW Panels with(19)MZ50 Inverters i
PV meter type:Enphase RGM
Emu location:Basement near the main electrical panel
Internet Connection:Bridge
Main Electrical Panel:300 Amp Murray/LC3040 22MIC
Utility:National Grid
Circuit Calculations:
19 inverters x 1/Inverter=19 Amps x 1.25=23.75 FIA. Q
PV combiner with:(2)15 Amp,2 pole circuit breakers,(1)15 Amp,1 pole circuit breaker(far EMU) co
ax
Interconnection calculation:N/A,tine-Side-Tap
WILL HAVE TO MOUNTA BACKER BOARD
PLEASE DISCUSS ME LOCATION OF ME PV EQUIPMENT WITH ME HOMEOWNER PRIOR TO ME INSTALLATION c
PLEASE MAKE SURE THE PANEL WEARS CONNECTING TO IS WIRED INTO ViTIUNNUFTER#38301317 -
OUR CONNECTION WILL BE MADE IN THE 10OAMP MURRAY PANEL IT 15 THE PANEL ON THE RIGHT SIDEInte —
near the maineleon ctrll hal panel
lside-lap in the gutter backer board)he .
Amp
fromtelectrical
breakel er
in the basement.
'thFrom
ghthe
the
LSTlns basement
anngtoa 125 a30Amp in breaker non-fused sure
to 2SAmp(22tto MIC)
th utility meter.
From co
co
nearthemainelectricalpanel(Wi0have tomount a backerrought Wiring Fromthemainbreakerenclosure will install ello located adjacent
ba sementandoutsidetoe 30 Amp non-fused location olocatedadjacenttotheutilitymeter.From
the disconnect switch,wire back into the basement,and through the PV meter and then into the PV combiner panel located adjacent[o the main electrical panel(Please discuss the location aF all the PV equipmen[wi[h the homeowner
prior to the installation).From the PV combiner panel,penetrate outside and run exterior conduit up the wall to a penetration into the attic space.From the penetration,continue through the attic space with Interior conduit to the four y a
soladecks located under the four solar arrays as shown In the electrical drawing.There will be two circuits of inverters. ud L..01
CISp
H
Cireuit 1 (9) ze•°' Pq
Cireuit 2(10) FJ
Soladeek
Rooff F
Eave YP
End Cop ® up a' Lq•6'
Trunk Line „ n
Interior Conduit— o w a
f V
Exterior Conduit—
m
20 4•
STRING&
Ea 4.9'
°p e• I CONDUIT LAYOUT
44•ta• '"
Rod D
E 4'2- /111 PV-4
PV Module Ratings @ STC Inverter Ratlp s Signage Requirements
Motlule Mate LG Invert¢,MA'. ...Faye 1)1.1 aahe,opntl An
MOEule Matlel rt¢,MOEeI 11WFhe Lem¢rme O w N
Mav pawerpein<[.rren¢Ilmpl 936 pc vo to¢Fano sl MIn P/a•len¢,plancl
Maa 1-11oln[1A,,wrco 31.50 av povre,7 ZLcsC M 150W a
'Al iVoal Inal Ae''al,
yp(lOgV 41P11<aplul LeRe,s p ' E
entllsa'I 51>rlal or5lmlla,fnm w O
A.
615unablefo,envlronman[InnaIIM Z ✓ai O O
��aa��rt�Fa, 93.
M.A sena In.(oll.) e1. .,In Panne IrA
.,Ipma.l o 'o C
CoeN%Voe/C
v'5
PHOTOVOLTAIC3 4 POWER SOURCE AiW�QRNING
ELECTRICAL SHOCK HAZARD
"° ftewwl.
DO NOT TOUCH TERMINALS!SOLAR CIRCUITS ONLY DO NOT
ADD CIRCUITS TO THIS PANEL A "opi- o
TERMINALS ON BOTH LINE —
To o� AND LOAD SIDES MAY BE
ENERGIZED IN THE OPEN
POSITION
PHOTOVOLTAIC SYSTEM „
Zia
DOWITH RAPID SHUTWN D• OWN
Pgo
Coto
SOLAR • •
5.7 kW DC Photovoltaic Solar Array
1 VOLT
INSTALLED COMPONENTS
19 LG NeON 2 300 Mono Black Modules o
19 Enighose 1,1250.60-211 S22 Inverters
CIRCUIT G a
CALCULATIONS ° p m
oDesign Am l 19 x 125% = 23.75 Amps W G
a
Po N
EQUIPMENT
RATINGS&
SIGNAGE
Insto lied B,Direct Eal Solar Ibl Ol 2015
PV-5
! I
' LG
Life's Good
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Mono NON LG300N1 C-A3
NeON
t 1
Introducing MonoX'"'NeON module series,which uses highly
efficient n-type materials,an elaborate process control adopting a APPROVED PRODUCT
60 cell semiconductor processing solution and a double-sided structure. DVE DgS C C
Our R&D concentrates on developing a product that is not only
1.ari 95EN61315
efficient,but strives to increase practical value for customers. Psi ms,di�
N-TYPE MATERIAL NEAR ZERO LID(LIGHT INDUCED DEGRADATION)
MonoXT"NeON uses n-type cells,boasting The n-type cells used in Monoi NeON have almost
higher mobility of electric charge,resulting in no boron,which may cause the initial efficiency to
higher generation efficiency. drop,leading to less LID.
NANO LEVEL CONTROL DOUBLE SIDED CELL STRUCTURE
MonoX*"'NeON uses the Nano-level process The rear of the cell used in MonoXT"'NeON is designed
control predominant in semiconductor processing to contribute to generation;the light beam reflected
process,which ensures less electric loss from from the rear of the module is reabsorbed to generate
internal defects. a great amount of additional power.
16.6k9
uanrw.irer e...w.rner.r.lmran rine rs.r..rxrr• u....w....Mr Eawe.rw..
Tulaiu
About LG EIe P.R,ics
lG Eleetmnlrs is a multinational coryrrarre committed to departing its capacity with solar energy business as its Poture growth engine Our solar energysouioe research program was launched In 1985,back d by LG Group's nch
ageeielabsemhmtluprove itseMmstryandeln in the nrarerialsiMuvuy.Wesuoo�sfWHreleaaN thefirstNbnNf^'seriesmtlre matlo:tm1010 w1Jth o0amdm31 mwroiesmlyears.ln 1013,MwrdO•NeON won
"In[ersolar AwaN"which
proved its heading inrwua[ion in the Intlusrry
MonoX TM
NeON LG300N1C-A3
MECHANICAL PROPERTIES ELECTRICAL PROPERTIES(STC-)
Cells 6.10 300 W
Cell vendor LG MPP voltage(Vmpp) 32,0
Cell type Monocrystalline MPP current(Impp) 9.40
Cell dimensions 156.156 mm 16.6 in Open circuit voltage(Vac) 39.8
v of busbar 3 Short circuit current(Isc) 9.98
Dimensions(L x W x H) 1640 x 1000 x 35 mm Module efficiency(%) 18.3
64.57 x 39.37 x 1.38 in Operating temperature(°Q -40--90
Static snow load 5400 Pa 1113 psf Maximum system voltage(V) 1000(IEC),600(UL)
Static wind load 2400 Pa/50 psf Maximum series fuse rating(A) 20
Weight 16.8 t 0.5 kq 136.96 3:1.1 Ib Power tolerance(%) 0-,3
Connector type MC4 connector lP 67 'STC(StandaNTestChoitiOnJ.Irradunre 1000W/my module tom,...25°C,AM 1.5
Junction box IP 67 with 3 bypass diodes 'Th,nameplare p^ererouryuti:measured and determined by LG Electmoicsatln sole and adsoluted-ration.
Length of cables 2 x 1000 mm/2 x 39.37 in ELECTRICAL PROPERTIES(NOCT-)
Glass High transmission tempered glass
Frame Anodized aluminum ., 3.00W
Maximum power(Pmpp) 220
CERTIFICATIONS AND WARRANTY MPP voltage(Vmpp) 29.3
CertiNcations(in Progress) IEC 61215,IEC 61730-1/-2,UL 1703, MPP current(Impp) 7.50
1509001,IEC61701,IEC 62716 Open circuit voltage(Voc) 369
Product warranty 10 years Shortcircuit current(1 ) a05
Effide [eduction
Output warrole—of Pmax *elm' m1' <3.5%
Imes:ereme,rc Tolemnaxp%) Linear warranty €
'1)1own,9B%,2)After 2nd year 07%p annual narration,3)81.2%for 25yeam N07(Nominal operating 0,11Temperature):Irradiance 800 W/m',ambienttempeature 20°C,wiM speed l m/s
TEMPERATURE COEFFICIENTS DIMENSIONS(MM/IN)
NOCT 45 t 2°C
Pi -0.41%/°C 0OW39.37 0a.°,i.q.y nu.mwo.u.l
Voc -0.29%/°Caooi
Isc 0.04%/ .a
°C — ha ..I as hi
n.. 2
CHARACTERISTIC CURVES
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(9LG North Ame a alar easiness Team Rvdua p d m orsare be o wgew tlw nWre 10
No EIec[mnia U.5 AInc -W-Z's Good'is a ragistraued tademark of LG corp.
10005ylvan Ave,En'it_ dClifh. All., rtad...rksare the proper,of their respeai,re owners.
L NJ 07632 -N-60-C-USF-EN-31002 With LG,it's all possible
Lf sGood on, ofhq.Nlaa M1ge.mm Copyright 02013 LG Elec[ronirs.AM rights resened ■
wuwr 9 10/01/2013 j
t J.
r
Enphase®Microinverters
Enphase° M250
p
012=7
The Enphase® M250 Microinverter delivers increased energy harvest and reduces design and
installation complexity with its all-AC approach. With the M250, the DC circuit is isolated and insulated
from ground, so no Ground Electrode Conductor (GEC) is required for the microinverter. This
further simplifies installation, enhances safety, and saves on labor and materials costs.
The Enphase M250 integrates seamlessly with the Engage® Cable, the Envoy Communications
Gateway'", and Enlighten®, Enphase's monitoring and analysis software.
PRODUCTIVE SIMPLE RELIABLE
- Optimized for higher-power - No GEC needed for microinverter -4th-generation product
modules - No DC design or string calculation - More than 1 million hours of testing
- Maximizes energy production required and 3 million units shipped
- Minimizes impact of shading, - Easy installation with Engage - Industry-leading warranty, up to 25
dust, and debris Cable years
[e] enphase® SA®
E N E R G Y
c us
Enphase®M250 Microinverter//DATA
r INPUT DATA (DC) M250-60-2LL-S22/S23/S24
Recommended input power(STC) 210-300 W
Maximum input DC voltage 48V
t.Peak power tracking voltage _ _ 27V-39V
Operating range 16 V-48 V
Min/Max start voltage 22 V/48 V ^ �'
Max DC short circuit current 15 A
Max input current 9.8 A t
OUTPUT DATA(AC) @208 VAC @240 VAC
Peak output power 250 W _ _ _ _ __250 W
Rated(continuous)output power 240 W 240 W _
Nominal output current 1.15 A(A rms at nominal duration) 1.0 A(A rms at nominal duration)
Nominal voltage/range 208 V/183-229 V 240 V/211-264 V
Nominal frequency/range 60.0/57-61 Hz 60.0/57-61 Hz 1
Extended frequency range' 57-62.5 Hz 57-62.5 Hz
Power factor >0.95 >0.95
Maximum units per 20 A branch circuit 24(three phase) 16(single phase)
Maximum output fault current 850 mA rms for 6 cycles 850 mA rms for 6 cycles l
EFFICIENCY
CEC weighted efficiency,240 VAC 96.5% I
CEC weighted efficiency, 208 VAC 96.0%
Peak inverter efficiency 96.5% ;
Static MPPT efficiency(weighted, reference EN50530) 99.4 %
Night time power consumption 65 mW max
I
MECHANICAL DATA
Ambient temperature range -400C to+650C
Operating temperature range(internal) -40oC to+85DC
Dimensions(W t mounting xD) 171 mm x 173 mm x 30 mm(without bracket)
—.__ �--_.'--._ ._� _
Weight 2.0 kg
-'
Cooling � Natural convection No fans
Enclosure environmental rating Outdoor- NEMA 6
FEATURES
Compatibility Compatible with 60-cell PV modules.
Power line i
Communication t
Integrated ground The DC circuit meets the requirements for ungrounded PV arrays in ,
NEC 690.35. Equipment ground is provided in the Engage Cable. No
additional GEC or ground is required.
Monitoring Free lifetime monitoring via Enlighten software
C__
Compliance' _... —� - UL1741/IEEE1547, FCC Part 15 Class B, CAN/CSA-C22.2 NO.0-M91,
� 0.4-04,and 107.1-01 s 1
'Frequency ranges can be extended beyond nominal if required by the utility
To learn more about Enphase Microinverter technology, l enphasee
visit enphase.com E N E R G Y
0 2013 Enphase Energy.All rights reserved.All trademarks or brands in this document are registered by their respective owner.