8 HILLSIDE AVE - BUILDING INSPECTION UEfl
The Commonwealth of Massachusetts rNSPECTION
n !9 Board of Building Regulations and Standards CITY OF
2R
Massachusetts State Building Code, 780 CMR d�t5 �A� 2 ReGSedhfu 20/1
Building Permit Application To Construct, Repair, Renovate Or molish a
One-or Two-Family Dwelling
This SectionVOffifficiae Only
Building Permit Number: d:
a»o wti7 3 !
Building Official(Print Name) Signature Date
SECTION 1:SITE INFORMATION
Ll Property Address: �WCl 1.2 Assessors Map&Parcel Numbers
1 L la Is this an accepted street?yes_ no Map Number Parcel Number
1.3 Zoning Information: 1.4 Property Dimensions:
Zoning District Proposed Use Lot Area(sq R) Frontage(ti)
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 ifyes❑
SECTION 2: PROPERTY OWNERSHIP'
2.1 Owner of Record: Reynols Virgo Salem, MA. 01970
Name(Print) City,State,ZIP
8 Hillside Ave 978-745-4050 Evirgo@live.com
No.and Street Telephone Email Address
SECTION 34 DESCRIPTION OF PROPOSED WORK'(check all that apply)
New Constructio Existing Building❑ 1 Owner-Occupied ❑ 1 Repain(s) ❑ Alteration(s) ❑ Addition ❑
Demolition ❑ Accessory Bldg.❑ Numberof Units_ I Other ❑ Spccity:
Brief Description of Proposed Work':InS±aIkCn .H.uV� L . I_ E" Yl'lt�� n�� -.a �ha u/OJ•t t,
�i IIPA 15i C2
L[
St v1'1
SECTION 4: ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs:
(Labor Pod Materials) Official Use Only
I.Building $ I. Building Permit Fee:$ Indicate how fee is determined:
2.Electrical $ ❑Standard City/Town Application Fee
Cl Total Project Cost'(Item 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: $ 0 Paid in Full 0 Outstanding Balance Due:
SECTIONS: CONSTRUCTION SERVICES
5.1 Construction Supervisor License(CSL) 04 ) 4-1A (Q
Jctmp l Sh2 y'yy n License Number) Expiration Date
Name of CSL Hollder
( 0 �y 1.1,._. ,m� _p a List CSL Type(see below) U
Normand Street 1' �(/ (/v\ Type Description
K M , . p � �`[^�U U Unrestricted(Buildings u to 35,000 cu.ft.)
/lN�' 1 R Restricted 1&2 FamilyDwelling
CttyITown,State,Z[A M Mason
ry
RC Roofing Covering
WS Window and Siding
_ SF Solid Fuel Burning Appliances
'I F51�CS �J MUt S( Q�IV�y. \U i�}�i�lY CG4ry I Insulation
Telephone Email address D 71 Demolition
5.2 Registered Home Improvement Contractor(HIC)
V\ ") 11/ 1t (s(Aa — HIC Registration Number —Ex\pirawtio'n,Da�re
HIC CotpR4gy�N�m�rjilC,Regist(an[Name
No.an �In:et J'\ U��Q(JaA�� Y
V [C 2�K7ry�C- Email address
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.Talure to provide
this affidavit will result in the denial of the Issuan 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
1,as Owner of the subject property,hereby authorize J w1n t S6\Cktr
to act on my behalf, in all matters relative to work authorized by this building permit application.
K-)-, / ;,,J 01/17/15
Print Owner's Name(Electronic Signature) 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 this application is true and accurate to the best of my knowledge and understanding. c
Print Owner's or Authorized Agcm: a(Ele nic Signature) 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.masssov/oca Information on the Construction Supervisor License can be found at www.mass.gov/dt�s
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"
The Co,mmonweafth of zVessaiclatasetis
Depaaitaaeatoflndust,iaalAccidents
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Name (Business/Organization/Individual):
!!ivint Solar Developer, LLC
Address:3301 North Thanksgiving Way, Suite 500
Cty/State,7_ip: Lehi, UT 84043 Phone #:801-377-9111
Are you an employer? Chec°c the appropriate box:
qq+ 1 r Type of project(required):
t..l 1 am a employer with G % 4. ❑ I am a genera contractor and
employees (full and/or part-time).' have hired the sub-contractors 6. ❑New construction
2.[l 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'
coin ? 9. Building addition
[No workers' comp. insurance P� insurance
required.] 5. ❑ We are a corporation and its 10.0 Electrical repairs or additions
3.❑ I am a homeowner doing ail work officers have exercised their I I.Q Plumbing repairs or additions
myself. [No workers' comp. right of exemption per MGL
12.0 Roof repairs
insurance required.] t c. 152, §1(4),and we have no employees. (No workers' 13.41 Other Solar Installation
comp. insurance required.]
`Any applicant that checks box#I muse also fill out the section below showing their workers'compensation policy information.
f 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 sub-contractors and state whether or not those entities have
employees. If the sub-contractors have employees,they must provide their wor';crs'comp.policy number.
I a;;e an employer drat is providing tvor5;ers'conipensalion insurance for my employees. Below Is eke policy and job site
information.
Insurance Company Name:Zurich American Insurance Company
Policy#or Self-ins- Liicc..#:WC 509601300 Expiration Date' I I/IJ2015
Job Site Address: K �'� �PQ 1) kf City/State/Zip:
Attach a copy of the workers' compensation policy declaration page(showing the policg number and enpiradon 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.
I do hereby certify sander thepains andpenalties ofperjury that the inforanationprovided above is true and correct
Sian ature: — Date I DIl 1�
Phone#: 801-2296459
[1.
cial case only. Do not write in ibis area,to be completed by city or town official.
or Town: Permit/License #
ing Authority(circle one):
oard of Health 2. Building Department 3.City/Town Clerk 4. Electrical Inspector 5.Plumbing Inspector
ther
tact Person: Phone#:
A CERTIFICATE OF LIABILITY INSURANCE °10131204°"Y""'
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:
122517TH STREET,SUITE 1300 NCN o aC No
DENVER,CO 80202-5534 E-MAIL ADDRESS:
Attn:Denver.certrequesf@marsh.com,Fax:212.948.43BI
INSURE 3 AFFORDING COVERAGE NAIC#
462738-STND-GAWUE-14-15 INSURER A,Evanston Insurance Company 35378
INSURED Vivint Solar,Inc: INSURERS:Zurich American Insurance Company 16535
Mvint Solar Developer LLC INSURERc:American Zurich Insurance Company 40142
3301 North Thanksgiving Way INSURERD:
Suite 500
Lehi,UT 84043 INSURERE:
INSURER F:
COVERAGES CERTIFICATE NUMBER: SEA-002368030-M REVISION NUMBER:0
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOWHAVE 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 POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
INSR ADDLSUSR POLICY EFF POLICY EXP
LTR TYPE OF INSURANCE POUCYNUMBER MMWDNYYY MMID LIMITS
A GENERAL LIABILITY 14PKGWEDD274 11/012014 11101/2015 EACH OCCURRENCE $ 1,000,000
X COMMERCIAL GENERAL LIABILITY A A TGRENTE 50,000
PREMISES Ea occurrence $
CLAIMS-MADE OCCUR N ED EXP(Any one person) $ 5,000
X $5,000 Ded.BI&PD PERSONAL&ADV INJURY $ 1,000,000
GENERAL AGGREGATE $ 2,000,000
GENL AGGREGATE LIMIT APPLIES PER: PRODUCTS-COMP/OP AGO $ 2,000,000
POLICY X PR0. LOD $
B AUTOMOBILE LIABILITY RAP509601500 11/0112014 W012015 COMBINED SINGLE LIMIT 1,000,000
Ea accident E
X ANY AUTO BODILY INJURY(Per person) $
ALL OWNED SCHEDULED AUTOS AUTOS BODILY INJURY(Per ecdtl )enl $
X HIRED AUTOS N
NON-OWNED PROPERTY DAMAGE $
AUTOS Per acciderrt
A UMBRELLA UAB X OCCUR 14EFXWEOD088 1110112014 11/0112015 EACH OCCURRENCE $ 5,000,000
X EXCESS UA13 CLAIMS-MADE AGGREGATE $ 5,000,000
DED I I RETENTION$ $
C WORKERS COMPENSATION WC50960130G 11101/2014 11/0112015 Xwe STATU- OTH-
AND EMPLOYERS'LIABILITY
B ANY PROPRIETORPARTNER/EXECUTIVE YIN WC509601400 11N12014 1110112015 1,000,000
OFFICERIMEMBER E%CLUDED9 M NIA - E.L.EACH ACCIDENT $
(Mandatory In NH) EL.DISEASE-EA EMPLOYE $ 1,0M,000
If yes,describe under 1,000,000
DESCRIPTION OF OPERATIONS below E.L.DISEASE-POLICY LIMIT $
A Errors&Omissions& 14PKGWE00274 41/012014 11N112015 LIMIT 1,000,000
Contractors Pollution DEDUCTIBLE 5,000
DESCRIPTION OF OPERATIONS/LOCATIONS I VEHICLES (Atlaeh ACORD 101,Additional Remarlu Schedule,R more space Is required)
The Certificate Holder and others as defined in the written agreement ale included as additional insured where required by written contract with respect 10 General Uahilky.This insurance is primary and non-
contributory over any e)isfing insurance and limited to liability arising out of the operations of the named insured and where required by written contract.Waiverof subrogation is applicable where required by written
contract with respect to General Liability and Workers 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 IN
Salem,MA 01970 ACCORDANCE WITH THE POLICY PROVISIONS.
AUTHORIZED REPRESENTATIVE
of Marsh USA Inc.
Kathleen M.Parstoe "�tx�br. fQcalw
91988-2010 ACORD CORPORATION. All rights reserved.
ACORD 25(2010105, The ACORD name and to o are registered marks of ACORD
10 Park Plaza - Suite 5170
Boston, Massachusetts 02116
Dome Improvement Contractor Registration
Registration: 170848
Type: Supplement Card
VIVINT SOLAR DEVELOPER LLC. Expiration: 1/5/2016
JAMES SHERMAN
4931 NORTH 300 WEST
PROVO, UT 84604
Update Address and return card.Mark reason for change.
son r r Address Renewal Employment Ej Lost Card
Massachusetts -Department of Public Safety
Board of Building Regulations and Standards
Construction Supervisor
License:CS-W254 4
I",
JAMS R sBYR1MIAN
6 got Hollow Dritie
SAUGUS MA 01%* _
a: 3
Y"
Expiration
"T
commissioner I og/2812016
if
1i
vovon0 3301 North Thanksgiving Way,Suits 500
Structural Group Lehi,LT84043
P: (801)234-7050
Scott E. Wyssling, PE
Head of Structural Engineering scott.wysslingCa vi vin is o lar.corn
January 22, 2015
Mr. Dan Rock, Project Manager
Vivint Solar
24 Normac Road
Woburn MA 01801
Re: Structural Engineering Services
Virgo Residence
8 Hillside Avenue, Salem MA
5-4097224
6.63 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 Visit/Verification 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 2 x 8
dimensional lumber at 16" on center. The attic space is unfinished and photos indicate that there was free
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/SEI 7-10 Minimum Design Loads
for Buildings and other Structures, wind speed of 100 mph based on Exposure Category 'B" and
35 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.
vivi t.
Page 2 of 2
B. Loading Criteria
• 10 PSF= Dead Load roofing/framing 40 PSF=Live Load(around 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. Root Structure Capacity
1. The photographs provided of the attic space and roof rafters show that the framing is in good
condition with no visible signs of damage caused by prior overstressing.
D. Solar Panel Anchorage
1. The solar panels shall be mounted in accordance with the most recent "Ecofibrium 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
Yz', 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,^ ESN OF n�gSSy
`� / / � IE Cy s
/v Y y
CIVI
Scott E.Wyssl' PE ° 5
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MA License N . 50 9oF FCIs-r
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V L y A MA LICENSE:MANIC 170848 u• Salem,MA 01970
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YES NO XNA Shodtircuit Curter((.) 892 Amps <
3.)SIZE PHOTOVOLTAIC POWER SOURCE(DC)CONDUCTORS Max Series Fuse DGPD) 15 Amps
BASED ON MAX CURRENT ON NEC 690.53 SIGN OR OCPD Nominal Maximum Power at STC(Press) 255 Watts
MICROINVERTER CONNECTION _—_ _ RATING AT DISCONNECT. Maximum System Voltage 10000ECV600(Uy j
TO ENGAGE TRUNK CABLE 4.)SIZE INVERTER OUTPUT(AC)CONDUCTORS ACCORDING Vale Temperature CcelSdent U.32 %PC
^ TO INVERTER OCPD AMPERE RATING(See Guide Bedpan 9).
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PV CIRCUIT.DDES TOTAL SUPPLY BREAKERS COMPLY
WITH 120%BUSBAR EXCEPTION IN 1)Lowest expected ambient temperature based on ASHRAE minimum mean extreme
its BARE CU GROUND NEC690.61(B)(2j(e)? XVES NO dry bulb temperature for ASHRAE location most similar to installation location: -19°C
(GROUNDINGARRAY) Signs(See Guide Section 7) continuous ASHRAE highest39-Cth 2%tlry bulb
tempareture for ASHRAE(oration most similar to installation Ipration: 39°C
Sign for Inverter CCPD and AC Disconnect: 3.)2005 ASHRAE fundamentals 2%design temperatures do not exceed 47°C In the
United States(Palm Springs,CA is 44.1°C).For less than 9 cunent.carn ing conductors
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ACOutput Cunent 1 23A00000 Amps temperature of 47°C or less(all of United States). •
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or less when protected by a 12-Amp or smaller fuse.
THIS PANEL FED BY AND LTIPLE SOI-AR)SOURCES 24
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(UTILITY AND SOIAft) or lass when protected by a 1 5-Amp or smaller fuse. •�
NOTE: NEUTRAL CONDUCTOR(S)OMITTED FOR CLARITY a
ALL INVERTER OUTPUT CIRCUITS WILL HAVE A NEUTRAL CONDUCTORex
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CM >M INSTALLER:VIVINT SOLAR Virgo Residence
.M DESIGN Mio INSTALLER NUMBER:I B]].404.4129 V V �n1� 8Hillside Ave
PV 4.0 m" LOGIC T' MA LICENSE:MAHIC 170848 v v 11 u Salem,MA 01970
DRAWN BY:Laura I AR 4097224 Last Modified:1/&2015 UTILITY ACCOUNT NUMBER:25740-56029
Vivint Solar - PV Solar Rooftop System Permit Submittal
1. Project Information
Project Name: REYNOLS VIRGO
Project Address: 8 Hillside Ave,Salem MA
A.System Description:
The array consists of a 6.63 kW DC roof-mounted Photovoltaic power system operating in parallel with the utility grid.There are(26)
255-watt modules and(26)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:
1.Roof type: EcoX Comp.Shingle
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: Ecolibrium Solar
b.Product Name: Ecorall
c.Total Weight of PV Modules and mounting hardware: 1222 Ibs
d.Total number of attachment points: 37
e.Weight per attachment point: 33.02 lbs
f.Maximum spacing between attachment points: 't See attached engineering calcs
g.Total surface area of PV array: 457.86 square feet
h.Array pounds per square foot: 2.66 lbs/square foot
i.Distributed weight of PV array on roof sections:
-Roof section 1: (26)modules,(37)attachments 33.02 pounds
vivint.
3. Electrical Components:
A.Module (UL 1703 Listed) Qty
Trina TSM 255-PA05.18 26 modules
Module Specs
Pmax-nominal maximum power at STC - 255 watts
Vmp-rated voltage at maximum power - 30.5 volts
Voc-rated open-circuit voltage - 37.7 volts
Imp-rated current at maximum power - 8.36 amps
Ise-rate short circuit current - 8.92 amps
B. Inverter (UL 1741 listed) Qty
Enphase M215-60-21J--S22 26 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 - 10.5 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 - 13 modules/inverters (15)amp breaker
PV circuit 2 - 13 modules/inverters (15)amp breaker
2011 NEC Article 705.60(B)
vivint.
D. Electrical Calculations
1.PV Circuit current
PV circuit nominal current 11.7 amps
Continuous current adjustment factor 125% 2011 NEC Article 705.60(B)
PV circuit continuous current rating 14.625 amps
2.Overcurrent protection device rating
PV circuit continuous current rating 14.625 amps
Next standard size fuse/breaker to protect conductors 15 amp breaker
Use 15 amo AC rated fuse or breaker
3.Conductor conditions of use adjustment(conductor ampacity derate)
a.Temperature adder
Average high temperature 35.4°C (101.12°F)
Conduit is installed 1" above the roof surface Add 22°C to ambient 2011 NEC Ardde 705.6003)
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°17) 71% 2011 NEC Article 705.60(B)
Adjusted PV circuit continuous current 20.5 amps
c.PV Circuit current adjustment for conduit fill
Number of current-carrying conductors 6 conductors
Conduit fill derate factor 80% 2011 NFC Arr cic 705.60(B)
Final Adjusted PV circuit continuous current 16.4 amps
Total derated ampacity for PV circuit 16.4 amps
Conductors(tag2 on Mine)must be rated for a minimum of 16.4 amps
THWN-2(90°C)#14AWG conductor is rated for 25 amps (Use#14AWG or larger) 2011 NEC Article 705.60(B)
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: 0.24%
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 0.24%.
2.AC conductor voltage drop:
=I x R x D C 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 11.7 amps)x(0.00319Q)x(60) _(240 volts)x(100) 0.93%
Total system voltage drop: 1.17%
vivint.
EcolibriumSolar
Customer Info
Name: 4097224
Email:
Phone:
Project Info
Identifier: 19914
Street Address Line 1: 8 Hillside Ave
Street Address Line 2:
City: Salem
State: MA
Zip: 01970
Country: United States
System Info
Module Manufacturer: Trina Solar
Module Model: TSM-255 PA05.18
Module Quantity: 26
Array Size (DC watts): 6.63
Mounting System Manufacturer: Ecolibrium Solar
Mounting System Product: EcoX
Inverter Manufacturer: Enphase Energy
Inverter Model: M215
Project Design Variables
Module Weight:44.8 Ibs
Module Length: 65.5 in
Module Width: 39.625 in
Basic Wind Speed: 100.0 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
EcolibriumSolar
Plane Calculations (ASCE 7-10): R1
Roof Shape: Gable Edge and Corner Dimension: 3.4 ft
Roof Type: Composition Shingle Stagger Attachments: Yes
Average Roof Height: 20.0 ft Include Snow Guards: No
Least Horizontal Dimension: 34.0 ft
Roof Slope: 35.0 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 0.64 0.64 0.64
Roof Snow Load 21.5 21.5 21.5 psf
Wind Pressure Calculations
Description Interior Edge Corner Unit
Net Design Wind Pressure Uplift -20.7 -24.3 -24.3 psf
Net Design Wind Pressure Downforce 19.4 19.4 19.4 psf
Adjustment Factor for Height and Exposure Category 1.0 1.0 1.0
Design Wind Pressure Uplift -20.7 -24.3 1 -24.3 psf
Design Wind Pressure Downforce 19.4 19.4 19.4 psf
ASD Load Combinations
Description Interior Edge Corner Unit
Dead Load 2.5 2.5 2.5 psf
Snow Load 21.5 21.5 21.5 psf
Downslope:Load Combination 3 11.5 11.5 11.5 psf
Down: Load Combination 3 16.5 16.5 16.5 psf
Down: Load Combination 5 13.7 13.7 13.7 psf
Down: Load Combination 6a 21.6 21.6 21.6 psf
Up:Load Combination 7 -11.2 -13.4 -13.4 psf
Down Max 21.6 21.6 21.6 psf
Spacing Results(Landscape)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 70.2 70.2 70.2 in
Max Spacing Between Attachments With Rafter/Truss Spacing of 16.0 in 64.0 64.0 64.0 in
Max Cantilever from Attachment to Perimeter of PV Array 23.4 23.4 23.4 in
Spacing Results(Portrait)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 50.2 50.2 50.2 in
Max Spacing Between Attachments With Rafter/Truss Spacing of 16.0 in 48.0 48.0 48.0 in
Max Cantilever from Attachment to Perimeter of PV Array 16.7 16.7 16.7 in
EcolibriumSolar
Layout
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EcolibriumSolar
Distributed Weight (All Planes)
In Conformance with Solar ABC's Expedited Permit Process for PV System (EPP)
Weight of Modules: 1165 Ibs
Weight of Mounting System: 74 Ibs
Total System Weight: 1239 Ibs
Total Array Area: 469 ft2
Distributed Weight: 2.64 psf
Number of Attachments: 37
Weight per Attachment Point: 33 Ibs
Bill Of Materials
Part Name Quantity
ECO-001_101 EcoX Clamp Assembly 37
ECO-001_102 EcoX Coupling Assembly 30
ECO-001_105B EcoX Landscape Skirt Kit 0
ECO-001_105A EcoX Portrait Skirt Kit 5
ECO-001_103 EcoX Composition Attachment Kit 37
ECO-001_116 EcoX Flat-Tile Flashing 0 .
ECO-001_117 EcoX S-Tile Flashing 0
ECO-001_118 EcoX W-Tile Flashing 0
ECO-001_363 EcoX Lower Support-Tile 0
ECO-001_109 EcoX Electrical Assembly 1
ECO-001_106 EcoX Bonding Jumper Assembly 4
ECO-001_104 EcoX Inverter Bracket Assembly 26
ECO-001_338 EcoX Connector Bracket 26