18 BAY VIEW AVE - BPA-14-1715 SOLAR RECEIVED
2�NL(INSPECTi.DNAL SERVICES
.
The Commonwealth of Massachusetts
r '�y) Board of Building Regulations and Standards, % ' CITY OF
/e Massachusetts State Building Code,780 CMR SALEM
_S Revised A4nr 2011
tr- Building Permit Application To Construct, Repair, Renovate Or Demolish a
One- or Two-Family Dwelling
( This Section For Official Use Only
Building Permit Number: Date Afilied:
Building Official(Print Name) Signature 4D.
SECTION l:SITE INFORMATION
1.1 Pr per Address: �'!, - n 1.2 Assessors Map& Parcel Numbers
L I a 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(it)
1.5 Building Setbacks(ft)
Front Yard Side Yards Rear Yard
Required 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:
Public❑ Private❑ Zone: _ Outside Flood Zone? Municipal❑ On site disposal system ❑
Check if yes❑
SECTION 2: PROPERTY OWNERSHIP'
2.1 Owner'of Record Thomas Nally Sntcm " k
Name(Print) City,Slate,ZIP
18 Bay View Ave 978-744-6774 Tara74@comcast.net
No.and Street Telephone Email Address
SECTION 3:DESCRIPTION OF PROPOSED WORK(check all that apply)
New Construction 1)(I Existing Building❑ Owner-Occupied ❑1 Repairs(s) ❑ 1 Alteration(s) ❑ 1 Addition ❑
Demolition ❑ 1 Accessory Bldg.❑ Number of Units_ Other ❑ Specify:
Brief Description of Proposed Work: S-tLL„� O
Ir}vv +0-IC— Solar
J��
SECTION 4:ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs: Official Use Only
(Labor and Materials)
1. Building $ -b'c> 1. Building Permit Fee: $ Indicate how fee is determined:
2.Electrical g 23 Z []Standard City/Town Application Fee
❑Total Project Cost'(Jtem 6)x multiplier x
3. Plumbing $ 2. Other Fees: $
4. Mechanical (HVAC) $ List:
5. Mechanical (Fire $
Suppression) Total All Fees:$
Check No._Check Amount: Cash Amount:_
6. Total Project Cost: $ ,. 13 Paid in Full 0 Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.1 -Construction Supervisor License(CSL) 6qS?15 4 � 2$ 19
-b-m S License Number Eapi anon ate
Name of CSL Holder
_t-.�� List CSL I ype(see below) U
No.and Street T
,, ype Description
Sept (c �S �(� 1f� U Unrestricted(Buildings u to 35,000 cu. I
R Restricted 1&2 Family Dwelling
City/Town,S't• ZIP
M Mason
RC Roofing Covering
WS Window and Sitting
1Fs1�J �J YVlnC27 VIVL' SF Solid ation Burning Appliances
,�tY v p���, 1 Insulation
'Tale hone Emailaddress In D I Demolition
5.2 Registered Home Improvement Contractor(HIC) t-70�4$ 1/Ir�I1�
-Vaffi-� SO�oUr V? c)VeY-, L C HIC Registration Number F, pk iratlon Date
HIC Coin any Name or H1C R gistrant Name
ig3PN 3 YV\-aSo10.a�VLVtyiFso r
No.and Street Email address 0 y Yv%
Provo LIT $q(OD4 -1$1305301&S
City/Town,State,ZIP Telephone
SECTION 6:WORKERS'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 Vl V 1 rr� Sty 1 GL.{r'
to act on my beha`f in all n tt-r• elative to work authorized by this building permit application.
/{ uv 10/27/14
Print Owner's Name(Electronic Sig v ure) Date
SECTION 7b:OWNER'OR AUTHORIZED AGENT DECLARATION
By entering my name below, I hereby attest under the pains and penalties of perjury that all of the information
contained in Ih pl (ion is true and accurate to the best of my knowledge and understanding.
U o-r- !
Print OwiKfs tr rued Agent's Name(Electronic Signature) k pate
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.yov/oca v/oca Information on the Construction Supervisor License can be found at www.mass.eov/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 half/baths
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'
A CERTIFICATE OF LIABILITY INSURANCE °A1o;ao"N3°""`"'
THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER THIS
CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES
BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED
REPRESENTATIVE OR PRODUCER,AND THE CERTIFICATE HOLDER
IMPORTANT: If the certificate holder Is an ADDITIONAL INSURED,the policy(les) must be endorsed. If SUBROGATION IS WAIVED,subject to
the terms and conditions of the policy,certain policies may require an endorsement A statement on this certificate does not confer rights to the
certificate holder in lieu of such endorsement(s).
PRODUCER CONTACT
MARSH USA INC. NAME:
1225 17TH STREET,SUITE 1300 PHONE FAXAIC,No
DENVER,CO 80202-5534 E-MAIL
Attn:Denver.certrequest@marsh.com,Fax 212948.4381 ADDRESS:
WSURE 3 AFFORDING COVERAGE NAIL#
46273&STND-GAWUE-13-14 INSURER A:Evanston Insurance Company 35378
INSURED National Union Fie Insurance Go of PA
VNint Solar,Inc. INSURER B
4931 N 300 W WSuRER O:New Hampshire Insurance Company 23841
Provo,UT 84604 INSURER D:
WSURERE:
INSURER F
COVERAGES CERTIFICATE NUMBER: SEA-002368030-06 REVISION NUMBER:0
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD
INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS
CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS,
EXCLUSIONS AND CONDITIONS OF SUCH POUCIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
INSR TYPE OF INSURANCE OL BR POLICY NUMB mmmo EFF MPR IDLY EXP umrm
LTR
A GENERAL UASILDY 13PKGWED0274 11/01/2013 11/0112014 EACH OCCURRENCE It 1,000,000
X COMMERCIAL GENERAL LASIUTY PREMISES Ea occurrence 3 50,000
CLAIMS-MADE M OCCUR MED EXP(Any one person) s 5,000
PERSONAL&ADV INJURY $ 1,000,000
GENERAL AGGREGATE $ Z000,000
GEN'L AGGREGATE LIMIT APPLIES PER: PRODUCTS-COMP/OPAGG $ 2,000,000
X POLICY JECT
PRO- LOC S
B AUTOMOBILE UABILT' 9701087 11/01/2013 11/0112014 MBINED SINGLE LIMIT 1,000,000
Ea aoddent
S X ANY AUTO 9701088 11/01/2013 1110IM14 BODILY INJURY(Per person) $
ALL OWNED SCHAUTO A EDULED BODILY INJURY(Per accicem) $
X HREOAUTOS X AUTOS ED PROPERTY DAMAGE $
A UMBRELLA LAB X OCCUR 13EFXWE00088 11/01/2013 11/01/2014 EACH OCCURRENCE .s 10,000,000
X EXCESS LAB CLAIMS-MADE AGGREGATE $ 10,000,000
LIED I I RETENTION$ 3
C WORKER$COMPENSATION 029342334, 029342335 11/01/2013 11101/2014 X I VvCSTATU- oTH-
AND EMPLOYERS LIABILITY ANYANY PROPRIETOR/PARTNER/EXECUTIVE YIN 029342336; 029342337 11/01/2013 11/01/2014 E.L EACH ACCIDENT 3 1,000,000
G IT]EXCLUDED? NIA =342338 11101/2013 11/0112014 ,000,000
(Mandatory in NH) E.L.E DISEASE-Fir EMPLOYE $
ifyymm describe under 1,000,000
OESCRIP ION OF OPERATIONS below EL-DISEASE-POLICY LIMIT $
A Enors&Omissions& 13PKGW00029 11101/2013 1MV2014 LIMIT 1,000,000
Contractors Pollution DEDUCTIBLE 5,000
DESCRIPTION OF OPERATIONS/LOCATIONS I VEHICLES(A1 ch ACORD IM,AddiaerMr Remadm Schedule,D more space ie required)
e Certificate Holder and others as defined in he written agreement era included as additional insured where required by written contract with respect to General Uabillty.This insurance is primary end non-
tribu(ory over any existing insuraxe end limited to liability arising out of he operations of the named insured and where required by written Contract Waiver of submila mn is applicable where required by written
ntract with respect to General UahiRty end Worters Compensation.
CERTIFICATE HOLDER CANCELLATION
City of Salem SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE
93 Washington Street THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED W
Salem,MA 01970 ACCORDANCE WITH THE POLICY PROVISIONS.
AUTHORRED REPRESENTATIVE
of Marsh USA Inc
Kathleen M.Parsice .T t lmer-7lr- JQ Z6l --
m 1988-2010 ACORD CORPORATION. All rights reserved.
ACORD 25(2010105) The ACORD name and logo are registered marks of ACORD
The Commonwealth of Massachusetts
Department of Industrial Accidents
— ( Office of investigations
l y I I Congress Street, Suite 100
Boston, M A 021I4-2017
Y www.mass.gov/dia
`Workers' Compensation Insurance Affidavit: Builders/Coutractors/Electricia]ns/Plumbers
Applicant Ilnformation Pease Print]Legibly
Name (Business/Organization/Individual): Vivint Solar Developer, LLC
Address: _ 4931 North 300 West__
`lip Provo _UT 848G4 Phone #: 801-704-9389 ---_-
iAre you an employer? Check the appropriate box: —
Type of project(required):
1.21 1 am a employer with 10 4. ❑ 1 am a general contractor and I
employees (full and/orpart-time).* "av, fisic t the :LiirWontractors 6. ❑ New construction
2.❑ I am a sole proprietor or partner- !'yo.[s on thr .w.ichcd sheet. ; 7. ❑ Remodeling
ship and have no employees I have 1
I f 8. ❑ Demolition
working for me in any capacity- emphosecs iltr, haroa ,corkers' { E
9. ElBuilding addition
o workers' comp. insurance comp. insurance.t
p 10.❑ Electrical repairs or additions j
k required.] 5. ❑ We are a corporation and its ,
E 1❑ I am a homeowner doing all work officers have exercised their i I I L❑ Plumbing repairs or additions
iright of exemption per MGL ff
i myself. o workers' comp. g P P t
1 (N P 12. Roof repairs
insurance required.] t c. 152, §I(4),and we have no � I ❑ p
employees. [No workers' 13.❑ Other __
I comp. insurance required.] f
Any applicant that checks box ill 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 anew affidavit indicating such.
tContractors that check this box must attached an additional sheet showing the name of the sub-contractors and state whether or not those entities have
employees. If the sub-contractors have employees,they must provide their workers'comp_policy number
I arm an employer that is providing workers'compensation insurancefor my employees. Below is the policy and job site
information.
Insurance Company Name:_ New Hampshire Insurance Company
Policy#or Self-ins. Lic. #: 029342228 Expiration Date: 11/01/14
Job Site Address:_�� � W lN�l/� City/State/Zip:_1alJ`_r r 1
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 S 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$250.00 a day against the violator. Be advised that a copy of this statement may be forwarded to the Office of
Investigations of the DIA for insurance coverage verification.
I do hereby certify under •pmn, i n!pem,ltir of perjur} r r the information provided aJoove is true and correct
''!t,vl �= SQi-7(J4-2389
Oklal use only. Do not write in this area, to be completed by city or town official.
i City or Town: ._— —.--_ --_ ._Permit/License #_ _
1 Issuing Authority(circle one):
1. Board of Health 2. Building Department 3. City/Town Clerk 4. Electrical Inspector 5. Plumbing Inspector
6. Other _
Con tact Person:_ __ _ Phone#: 1
iU earK Fiaza - suite �) l /u
Boston, Massachusetts 02116
Dome Improvement Contractor Registration
Registration: 170848
Type: Supplement Card
VIVIiNT SOLAR DEVELOPER LLC. Expiration: 1/5/2016
JAUIES SHERivIAN
4931 FORTH 300 WEST
PROVO, UT 84604
Update Address and return card. Mark reason for change.
sc� a zow IDS an Address Renewal Employment Lost Card
Massachusetts - Department of Public Safety
Board u.ii6n Regulations and Standards
soar.. of 8 9 s
Construction Supervisor r"�5
License:CS-W254 I„
.Ue9i-4ES R SHER4s.,+F;N
6 Fom Hcillo! E4 Z
S 9TJGE S MA 01406
Expiration
Commissioner 08/2$/2018
-� vivo Me cc, I C, 3301 North Thanksgiving Way,Suite 500
Structural GroupLehi, UT84043
P: (801)234-7050
Scott E. Wyssling, PE
Head of Structural Engineering scott.wyssling9vlvintsolar.com
October 28, 2014
Mr. Dan Rock, Project Manager
Vivint Solar
24 Normac Road
Woburn MA 01801
Re: Structural Engineering Services
Nally Residence
18 Bay View Avenue, Salem MA
S-4038660
4.845 kW System
Dear Mr. Rock:
Pursuant to your request, we have reviewed the following information regarding solar panel installation on
the roof of the above referenced home:
1. Site VisitNerification Form prepared by a Vivint Solar representative identifying specific
site information including size and spacing of rafters 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 was prepared by the Design Group and will
be utilized for approval and construction of the proposed system.
3. Photovoltaic Rooftop Solar System Permit Submittal identifying design parameters for the
solar system.
4. Photographs of the interior and exterior of the roof system identifying existing structural
members and their conditions.
Based on the above information we have evaluated the structural capacity of the existing roof system to
support the additional loads imposed by the solar panels and have the following comments related to our
review and evaluation:
Description of Residence:
The existing residence is typical wood framing construction with the roof system consisting of assumed 2 x
6 dimensional lumber at 16" on center. The attic space is finished and photos indicate that there was no
access to visually inspect the size and condition of the roof rafters. All wood material utilized for the roof
system is assumed to be Spruce-Pine-Fir#2 or better with standard construction components. Our review
of the photos of the exterior roof does not indicate any signs of settlement or misalignment caused by
overstressed underlying members.
Stability Evaluation:
A. Wind Uplift Loading
1. Refer to attached Ecolibrium Solar calculations sheet for ASCE/SEl 7-10 Minimum Design Loads
for Buildings and other Structures, wind speed of 100 mph based on Exposure Category "B" and
20 degree roof slopes on the dwelling areas. Ground snow load is 40 PSF for Exposure "B", Zone
2 per (ASCE/SE17-10).
2. Total area subject to wind uplift is calculated for the Interior, Edge and Corner Zones of the
dwelling.
vivint.
t Page 2 of 2
B. Loading Criteria
• 10 PSF= Dead Load roofing/framing 40 PSF = Live Load (ground snow load)
• 5 PSF= Dead Load solar panels/mounting hardware
Total Dead Load=15 PSF
The above values are within acceptable limits of recognized industry standards for similar
structures. Analysis performed of the existing roof structure utilizing the above loading criteria
indicates that the existing rafters will support the additional panel loading without damage, if installed
correctly.
C. Solar Panel Anchorage
1. The solar panels shall be mounted in accordance with the most recent "Ecolibrium Solar
Installation Manual', which can be found on the Ecolibrium Solar website (ecolibriumsolar.com).
If during solar panel installation, the roof framing members appear unstable, deteriorated,
structurally compromised or deflect non-uniformly, our office should be notified before proceeding
with the installation.
2. Maximum allowable pullout per lag screw is 235 Ibs/inch of penetration as identified in the
National Design Standards (NDS) of timber construction specifications for Hem-Fir (North
Lumber) assumed. Based on our evaluation, the pullout value, utilizing a penetration depth of 2
1/2", is less than what is allowable per connection and therefore is adequate. Based on the
variable factors for the existing roof framing and installation tolerances, using a thread depth of 2
1/2' with a minimum size of 5/16" lag screw per attachment point for panel anchor mounts should
be adequate with a sufficient factor of safety.
3. Considering the roof slopes, the size, spacing, condition of roof, the panel supports shall be
placed at and attached to no greater than every fourth roof rafter as panels are installed
perpendicular across rafters and no greater than the panel length when installed parallel to the
rafters (portrait). No panel supports spacing shall be greater than four (4) rafter spaces or 64"o/c,
whichever is less.
4. Panel supports connections shall be staggered to distribute load to adjacent rafters.
Based on the above evaluation, it is the opinion of this office that with appropriate panel anchors being
utilized the roof system will adequately support the additional loading imposed by the solar panels. This
evaluation is based on information supplied to us at the time of this report and current industry standards and
practices.
Should you have any questions regarding the above or if you require further information do not hesitate to
contact me.
Ve truly yours, o� SNOF �cyG
`V -V Y
I� CIVI a'
50
Scott E. Wyssl' PE °
MA License N . 50 9oFFSSIIs-f Q`
------- -- ----- V INTERCONNECTION POINT,
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PV 2.0 A~ ROOF n y MA LICENSE:MAHIC I]0848 �/ �/ �� Y . ` J r� - + Salem,MIA O 970 ^V G PLAN DRAWN BY:Jerry S1 AR 4038660 1 Last Modified 10/92014 UTILITY ACCOUNT NUMBER:25557-30016
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Inverter Ratings(Guide Section 4) O Conduit and Conductor Schedule
Inverter MakelMMel Enphasa M215TS-2LL-S2x-ZC Tao GesuiOlion Wire Gaupa pot ContluMn Gnat Type Conduit an.
MODULE DETAIL Max DC Volt ruling as volN
Max Fawner III 215 Wet6 I Enthuse engage cable-THWN-2 12 AN'G 4 card NIA-Free Nr ! so
Nominal AC Values 240 voile 1 Bare Capper Graund(EGGGEC) 6AWG I NIA-Free Air NIA-free Air (3) ro
Yingli Energy VL255P-29b Max AC Career 09 Amps 4I
SOLAR MODULE Max OCP.Rating 20 Amps 2 TNwN2 10 AWG 6 PVC 0'�1' U n
XUx Number of mr.WCaral p ¢ THNNI Ground eAWG 1 PVC 0 jo
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NOTES FOR INVERTER CIRCUITS(Guitle Section 8 and 9), 3 THWN-2-Ground aAwG 1 Foc g'-1 g¢mw
to m
1.)IF UTILITY REQUIRES A VISIBLE-BREAK SWITCH,DOES THIS PV Module Ratings @STC(Guide Section 5) E 2
Enphase M215-60-2LL-S2x-2C SWITCH MEET THE REQUIREMENTS? Z
MICRO-INVERTERAT YES NO XNA Model MakalMatlel Yingli Energy YL255P-29b
/�0//r•Ez
Max Pawer-Point Current(Imp) 8,32 Amps LLm m2
EACH MODULE,ATTACHED 2.)IF GENERATION METER REQUIRED,DOES THIS METER Max Power-0 Lyme)
Vmp) 308 Volts °Jrilpp
WITH ECO HARDWARE SOCKET MEET THE REQUIREMENTS?
open cireunvonage(vee 3e2 voila 2iii o
VES NO XNA - U
Ss.Smicuiluurrentse(OCID) 8.80 Amps )Q)
B SED ON
CURRENT
TOWER NNEC URCE 90.63SC)DONDUCTQR$ Max Sedesximum CPC) 15 Amps F
BASED ON MA%CURRENT ON NEC fi90.5351GN Oft OCPD Nominal Maximum Power at STC(Pmax) 255 walls Z �
MICROINVERTER CONNECTION _ RATING AT DISCONNECT. Murmurs System Voltage 1000LECy600(UL) j
TO ENGAGE TRUNK CABLE 4.)SIZE INVERTER OUTPUT(AC)CONDUCTORS ACCORDING Vac Temperature Coefficient
^ TO INVERTER OCPD AMPERE RATING(Sea Guide Section 9).
V 5.)TOTAL OF 2 INVERTER OCPD(s).ONE FOR EACH NOTES FOR ARRAY CIRCUIT WIRING(Guide Section B and S and Appendix W,
PV CIRCUIT.DOES TOTAL SUPPLY BREAKERS COMPLY
WITH 120%BUSBAR EXCEPTION IN 1.)Lowest expected ambient temperature based on ASHRAE minimum mean extreme
p6 BARE CU GROUND NEC690.64(8)(2)(a)? XYES NO dry bulb temperature for ASHRAE location most similar to installation location: -19°C
(GROUNDING ARRAY) Signs(See Guide Section 7) 2.)Highest conOnuous ambient temperature based on ASHRAE highest month 2%dry bulb
temperature for ASHRAE location most similar to installation location: 39°C
Sign for inverter COPE,and AC Disconnect 3.)2005 ASHRAE fundamentals 2%design temperatures do not exceed 47°C in the
United Slates(Palm Springs,CA is 44.1'C).For less than 9 cunent carrying conductors
Solar PV System AC Point of Connection in mcfmounted sunlit conduit at least 0.5'above roof and using the outdoor design
AC Output Cunem 1 17,100000 1 Amps temperature of 47'C or less(all of United States).
Nominal AC Voltage 1 2401 Volts a.)12 AWG,90°C conductors are generally acceptable for modules with Isc of 7.68 Amps v
or less when protected by a Lingerie or smaller fuse. re
THIS PANEL FED BY MULTIPLE SOURCES
b)10 AVID,90°C conductors are generally acceptable for modules with Is,of 9.6 Amps o(UTILITY AND SOLAR) or less when protectedb a 1 5-Amp or smaller fuse.
NOTE:NEUTRAL CONDUCTOR(S)OMITTED FOR CLARITY .o
ALL INVERTER OUTPUT CIRCUITS WILL HAVE A NEUTRAL CONDUCTOR
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PV CIRCUIT 2: 9 MODULES/PARALLEL i Orp�\�PL` OR EQUIVALENT
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ENTRANCE NAMECONDUCTORSRATED:100A Z 5A J15p MSUPPLY-SIDE M Q
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Vivint Solar - PV Solar Rooftop System Permit Submittal
1. Project Information
Project Name: THOMAS NALLY
Project Address: 18 BAY VIEW AVE,SALEM MA
A. System Description:
The array consists of a 4.845 kW DC roof-mounted Photovoltaic power system operating in parallel with the utility grid.There are (19)
255-watt modules and (19) 215-watt micro-inverters,mounted on the back of each PV module.The array includes (2) PV circuit(s).The
array is mounted to the roof using the engineered racking solution from Ecolibrium Solar.
B. Site Design Temperature: (From Boston Logan INT'L ARPT weather station)
Average low temperature: -21.1 °C (-5.98°F)
Average high temperature: 38.4°C (101.12°F)
C. Minimum Design Loads:
Ground Snow Load: 40 psf (State Board BR&S)
Design Wind Speed: 100 mph (State Board BR&S)
2. Structural Review of PV Array Mounting System:
A.System Description:
EcoX Comp. Shin t.Roof type: le e: p g
2.Method and type of weatherproofing roof penetrations: Flashing
B. Mounting System Information:
1.Mounting system is an engineered product designed to mount PV modules
2.For manufactured mounting systems,following information applies:
a.Mounting System Manufacturer: Eeollbrlum Solar
b. Product Name: Ecorail
c.Total Weight of PV Modules and mounting hardware: 800 Ibs
d.Total number of attachment points: 44 -
e.Weight per attachment point: 18.18 Ibs
f.Maximum spacing between attachment points: * See attached engineering talcs
g.Total surface area of PV array: 334.09 square feet
h.Array pounds per square foot: 2.39 Ibs square foot
i.Distributed weight of PV array on roof sections:
-Roof section 1: (19)modules,(44)attachments 18.18 pounds
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3. Electrical Components:
A. Module (UL 1703 Listed) Qty
Yingb Energy YL255P-29b 19 modules
Module Specs
Pmax-nominal maximum power at STC - 255 watts
Vmp-rated voltage at maximum power - 30 volts
Voc-rated open-circuit voltage - 37.7 volts
Imp-rated current at maximum power - 8.49 amps
Ise-rate short circuit current - 9.01 amps
B. Inverter (UL 1741 listed) Qty
Enphase b1215-60-2LL-S22 19 inverters
Inverter Specs
1. Input Data (DC in)
Recommended input power(DC) - 260 watts
Max.input DC Voltage - 45 volts
Peak power tracking voltage - 22V-36V
Min./Max. start voltage - 22V/45V
Max.DC short circuit current - 15 amps
Max.input current - 105 amps
2. Output Data (AC Out)
Max. output power - 215 watts
Nominal output current - 0.9 amps
Nominal voltage - 240 volts
Max. units per PV circuit - 17 micro-inverters
Max. OCPD rating - 20 amp circuit breaker
C.System Configuration
Number of PV circuits 2
PV circuit 1 - 10 modules/inverters (15) amp breaker
PV circuit 2 - 9 modules/inverters (15) amp breaker
2011 NEC Article 705.60(B)
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D. Electrical Calculations
1.PV Circuit current
PV circuit nominal current 9 amps
Continuous current adjustment factor 125% 2011 NEC Article 705.60(B)
PV circuit continuous current rating 11.25 amps
2.Overcurrent protection device rating
PV circuit continuous current rating 11.25 amps
Next standard size fuse/breaker to protect conductors 15 amp breaker
Use 15 amp AC rated fuse or breaker
3. Conductor conditions of use adjustment(conductor ampacity derate)
a.Temperature adder
Average high temperature 38.4°C (101.12°F)
Conduit is installed 1"above the roof surface Add 22°C to ambient 2011 NEC Article 705.60(B)
Adjusted maximum ambient temperature 60.4°C (140.72°F)
b. PV Circuit current adjustment for new ambient temperature
Derate factor for 60.4°C (140.72°F) 71% 2011 NEC Article 705.60(B)
Adjusted PV circuit continuous current 15.8 amps
c.PV Circuit current adjustment for conduit fill
Number of current-carrying conductors 6 conductors
Conduit fill derate factor 80% 2011 NEC Article 705.60(B)
Final Adjusted PV circuit continuous current 12.6 amps
Total derated ampacity for PV circuit 12.6 amps
Conductors (tag2 on 1-line)must be rated for a minimum of 12.6 amps
THWN-2 (90°C) #14AWG conductor is rated for 25 amps (Use#14AWG or larger) 2011 NEC Article 705.60(13)
4.Voltage drop (keep below 3%total)
2 parts:
1. Voltage drop across longest PV circuit micro-inverters (from modules to j-box)
2.Voltage drop across AC conductors (from j-box to point of interconnection)
1.Mirco-inverter voltage drop: 0.39%
The largest number of micro-inverters in a row in the entire array is 9 inCircuit 2.According to
manufacturer's specifications this equals a voltage drop of 0.39%.
2. AC conductor voltage drop:
=I x R x D (=240 x 100 to convert to percent)
= (Nominal current of largest circuit) x(Resistance of#14AWG copper) x (Total wire run)
= (Circuit 1 nominal current is 9 amps)x (0.00319d2) x (140�_(240 volts) x (100) 1.67%
Total system voltage drop: 2.06%
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EcolibriumSolar
Customer Info
Name:
Email:
Phone:
Project Info
Identifier: 14137
Street Address Line 1: 18 Bay View Ave
Street Address Line 2:
City: Salem
State: MA
Zip: 01970
Country: United States
System Info
Module Manufacturer: Yingli Solar
Module Model: YL255P-29b
Module Quantity: 19
Array Size (DC watts): 4845.0
Mounting System Manufacturer: Ecolibrium Solar
Mounting System Product: EcoX
Inverter Manufacturer: Enphase Energy
Inverter Model: M215
Project Design Variables
Module Weight: 40.8 Ibs
Module Length: 65.0 in
Module Width: 39.0 in
Basic Wind Speed: 110.0 mph
Ground Snow Load: 40.0 psf
Seismic: 0.0
Exposure Category: B
Importance Factor: II
Exposure on Roof: Partially Exposed
Topographic Factor: 1.0
Wind Directionality Factor: 0.85
Thermal Factor for Snow Load: 1.2
Lag Bolt Design Load - Upward: 820 Ibf
Lag Bolt Design Load - Lateral: 288 Ibf
EcoX Design Load - Downward: 493 Ibf
EcoX Design Load - Upward: 568 Ibf
EcoX Design Load - Downslope: 353 Ibf
EcoX Design Load - Lateral: 233 Ibf
Module Design Moment—Upward: 3655 in-lb
Module Design Moment—Downward: 3655 in-lb
Effective Wind Area: 20 ft2
Min Nominal Framing Depth: 2.5 in
Min Top Chord Specific Gravity: 0.42
EcolibriurnSolar
Plane Calculations (ASCE 7-10): roof 1
Roof Shape: Gable Edge and Corner Dimension: 3.0 ft
Roof Type: Composition Shingle Stagger Attachments: No
Average Roof Height: 25.0 ft
9
Include Snow Guards: No
Least Horizontal Dimension: 30.0 ft
Roof Slope: 20.0 deg
Truss Spacing: 16.0 in
Snow Load Calculations
Description - Interior Edge Corner Unit
Flat Roof Snow Load 33.6 33.6 33.6 psf
Slope Factor 0.91 0.91 0.91
Roof Snow Load 30.6 30.6 30.6 psf
Wind Pressure Calculations
Description Interior Edge Corner Unit
Net Design Wind Pressure Uplift -19.4 -31.9 -47.9 psf
Net Design Wind Pressure Downforce 11.4 11.4 11.4 psf
Adjustment Factor for Height and Exposure Category 1.0 1.0 1.0
Design Wind Pressure Uplift -19.4 -31.9 -47.9 psf
Design Wind Pressure Downforce 16.0 16.0 16.0 psf
ASD Load Combinations
Description Interior Edge Corner Unit
Dead Load 2.3 2.3 2.3 psf
Snow Load 30.6 30.6 30.6 psf
Downslope: Load Combination 3 10.6 10.6 10.6 psf
Down: Load Combination 3 29.2 29.2 29.2 psf
Down: Load Combination 5 11.8 11.8 11.8 psf
Down: Load Combination 6a 29.6 29.6 1 29.6 psf
Up: Load Combination 7 -10.3 -17.8 -27.4 psf
Down Max 29.6 29.6 29.6 psf
Spacing Results(Landscape)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 60.4 60.4 60.4 in
Max Spacing Between Attachments With Rafterrrruss Spacing of 16.0 in 48.0 48.0 48.0 in
Max Cantilever from Attachment to Perimeter of PV Array 20.1 20.1 20.1 in
Spacing Results(Portrait)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 36.9 36.9 36.9 in
Max Spacing Between Attachments With RafterrFruss Spacing of 16.0 in 32.0 32.0 32.0 in
Max Cantilever from Attachment to Perimeter of PV Array 12.3 12.3 12.3 in
EcolibriumSolar
Layout
Skirt
e Coupling
O Clamp Warning: PV Modules may need to be shifted with respect to roof trusses to comply with
0 Bonding Jumper maximum allowable overhang.
EcolibriumSolar
Distributed Weight (All Planes)
In Conformance with Solar ABC's Expedited Permit Process for PV System (EPP)
Weight of Modules: 775 Ibs
Weight of Mounting System: 88 Ibs
Total System Weight: 863 Ibs
Total Array Area: 334 ft2
Distributed Weight: 2.58 psf
Number of Attachments: 44
Weight per Attachment Point: 20 Ibs
Bill Of Materials
Part Name Quantity
ECO-001_101 EcoX Clamp Assembly 44
ECO-001_102 EcoX Coupling Assembly 22
ECO-001_105B EcoX Landscape Skirt Kit 8
ECO-001 105A EcoX Portrait Skirt Kit 0
ECO-001_103 EcoX Composition Attachment Kit 44
ECO-001_109 EcoX Electrical Assembly 1
ECO-001_106 EcoX Bonding Jumper Assembly 7
ECO-001_104 EcoX Inverter Bracket Assembly 19
ECO-001 338 EcoX Connector Bracket 19