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59 LAWRENCE ST - BUILDING INSPECTION 175 Lt 1 to b CAC- z©q a, The Commonwealth of Massachusetts Board of Building Regulations and Standards CITY OF Massachusetts State Building Code,780 CMR SALEM k� Revised Mm-2011 Building Permit Application To Construct,Repair, Renovate Or Demolish a One-or Two-Family Dwelling This Section For Official Use ly _ Building Permit Number: Date Appf d: o N M m 0/ C-1:0 Building Official(Print Name) Signature Dat Eir" =Cn SECTION 1:SITE INFORMATION Zsm 1.1 Property Address: 1.2 Assessors Map& Parcel Numbers T7 rl�rt l.Ct( )'tit-O A/1 P12 � y mG. 1.la Is this an accepted street?yes x no Map Number Parcel Number 70 1.3 Zoning Information: 1.4 Property Dimensions: n Go m to "Coning District Proposed Use Lot Area(sq ft) Frontage(ft) 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 ifyesO SECTION 2: PROPERTY OWNERSHIP' 21 'MAIMfffDalence So lew( M A Name(Print) City,Slate,ZIP 59 Lawrence St 617-257-5295 gringo075@me.com No.and Street Telephone Email Address SECTION 3:DESCRIPTION OF PROPOSED WORK'(check all that apply) New Construction b( Existing Building❑ Owner-Occupied ❑ 1 Repaim(s) ❑ Alteration(s) ❑ 1 Addition ❑ Demolition ❑ Accessory Bldg.❑ Number of Units_ Other ❑ Specify: Brief Description of Proposed Work': p—yy ovna-cilc. sour SNs-exac, f Ici SECTION 4:ESTIMATED CONSTRUCTION COSTS Item Estimated Costs: Official Use Only Labor and Materials 1.Building $ ,pp 1. Building Permit Fee:$ Indicate how fee is determined: 2.Electrical $ - ❑Standard City/Town Application Fee ZsL¢'L ❑Total Project Cost'(Item 6)x multiplier x 3. Plumbing $ 2. Other Fees: $ 4.Mechanical (HVAC) $ List: 5.Mechanical (Fire $ Suppression) Total All Fees:$ 6.Total Project Cost: $ aH 2TbS Check No. Check Amount: Cash Amount:_ ❑Paid in Full 0 Outstanding Balance Due: SECTION 5: CONSTRUCTION SERVICES 5.1 Construction Supervisor License(CSL) 0 1-� t-�5 25 4 S2$ 1 -ecL 1e,S n,neyrytah' License Number Exp ation ate Name of CSL Holder (i� ' V-kcuIn S l r lit" 1 List CSL"Type(see below) U No.and Street 1 t' type Description —C�O-u� LLS / t� 1 A OIq o ^ U Unrestricted(Buildings2 Fml u el ing cu. ft.) J "�- w R Restricted I&2 Family Dwelling City/Town,$ R``/,.IP M Mason ry RC Roofing Covering WS Window and Sidin 11 --CC 1^� �,�(.� SF Solid Fuel Burning Appliances �13 L6 YV`ry sot rlp-yiut•V,�q), I 1 Insulation Telephone Email address rvl D Demolition _5.2 Registered Home Improvement Contractor(HIC) m-t- Solar Deve-I.WeY t-1 oes4$ t V U l t C HIC Registration Number E pu at on Date HIC Com any Name or HIC R gisuanl Name F�13PN. �oD �. Yy\-ASolGuc�JytytyL�solctr. No.and Street Email address C jDy" Provo UT- gt}lpo4 -ig13o530105 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 ..........A No...........O. 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 VI V 11� S>J IQV- to act on my behalf, in all matters relative to work authorized by this building permit application. 11/01/14 Print Owner's Name(Electronic Signature) Date SECTION 7b:OWNEW 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 th' p tion is true and accurate to the best of my knowledge and understanding. ar 11/01/14 Print Ow s r rind Agent's Name(Electronic 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.mass.gov/oca Information on the Construction Supervisor License can be found at www.nrass.gov/dps 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" CERTIFICATE OF LIABILITY INSURANCE °A'�72014°"Y"Y' 10/31/2014 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(ies) must be endorsed. If SUBROGATION IS WAIVED,subject to the terns 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 IN PHONE o FAX Not: DENVER,CO 80202-5534 E-MAIL Attn:Denver.cerhequesl@marsh.com,Fax:212.948.4381 A°DRESS: INSURE S AFFORDING COVERAGE NAIC0 462738-STND-GAWUE-14-15 INSURER A,Evanston Insurance Company 35378 INSURED Zurich American Insurance Company 16535 Vivint Solar,Inc: INSURER B Vivint Solar Developer LLC INSURER C:American Zurich Insurance Company 40142 3301 North Thanksgiving Way Suite 500 INSURER D: Lehi,UT 84043 IN SURER E NSURERF: COVERAGES CERTIFICATE NUMBER: SEA-002368030-08 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 POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. INSR ADDL SUER POLICY EFF POLICY EXP LTR TYPE OF INSURANCE JNRR mn POUCYNUMBER IMMIDOnITM IMMIDDIYYYYIUNITS A GENERAL LIABILITY 14PKGWE00274 11/01/2014 11/0112015 EACH OCCURRENCE $ 1,000,000 X COMMERCIAL GENERAL LIABILITY AMA N 50,000 PREMISES Ea occunance $ CLAIMS-MADE rxi OCCUR MED EXP(Any one person) $ 5,000 X $5,000 Dad.BI&PD PERSONAL&ADV INJURY $ 1,000,000 GENERALAGGREGATE E 2,000,000 GEN'L AGGREGATE LIMIT APPLIES PER: PRODUCTS-COMP/OP AGO $ 2,000,000 POLICY X PRO 1-1 LOC $ B AUTOMOBILE LIABILITY RAP509601500 110112014 11/0112015 COMBINED SINGLE LIMIT $ 1,000,000 ANY AUTO BODILY INJURY(Per person) $ ALL OWNED SCHEDULED AUTOS AUTOS BODILY INJURY(Per arntleM) $ X X NON-OMED PROPERTY DAMAGE XHIIREDAUTOS AUTOS Per accidem E E A UMBRELLA UAB X OCCUR 14EFXWE00088 11/01/2014 11/012015 EACH OCCURRENCE $ 5,000,000 X EXCESS UAB CLAIM^S.MADE AGGREGATE $ 5,000,000 DED RETENTION$ $ C WORKERS COMPENSATION WG509601300 11/01/2014 11101/2015 WC STATU- OTH- AND EMPLOYERS'LUIBIUTY B ANY PROPRIETOR/PARTNERIEXECUTIVE YIN WC509601400 11/01/2014 11/01/2015 E L.EACH ACCIDENT $ 1,000,000 OFFICEWMEMBER EXCLUDED?(Mandatory in NH) ® NIA E.L DISEASE-EA EMPLOYE $ 1,000,000 Ira describe under 1,000,000 DESCRIPTION OF OPERATIONS below E.L.DISEASE-POLICY LIMIT E A Errors&Omissions& 14PKGWE00274 11/0112014 11/012015 LIMIT 1,000,000 Contractors Pollution, DEDUCTIBLE 5,000 DESCRIPTION OF OPERATIONS/LOCATIONS I VEHICLES (ABaeh ACORD 101,Addi0mal Remarks Schedule,a 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 to General Liability.This insurance is primary and non- contributory over any existing insurance and limited to liability arising out of the operations of the named insured and where required by written contract Waiver of 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 Memel,USA Inc. Kathleen M.Parsloe .yYyX,IG�ir_7n. JQcalse- ©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 IndustrialAccidents Office of Investigations 1 Congress Street,Suite 100 Boston,MA 02114-2017 u,p www.mass.gov/dia Workers'Compensation Insurance Affidavit: Builders/Contractors/Electricians/Plumbers Applicant Information Please Print Legibly Name (Business/Orgmizationnndividuaq: Vivint Solar Developer, LLC Address:3301 North Thanksgiving Way, Suite 500 City/State/Zip:Lehi, UT 64043 Phone #:801-377-9111 Are you an employer?Check the appropriate box: Type of project(required): 1.❑ I am a employer with 4. ❑ I am a general contractor and I 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 workingfor in aci employees and have workers' me any capacity. ; 9. ❑ Building addition [No workers' comp. insurance comp. insurance. required.] 5. ❑ We are a corporation and its 10.0 Electrical repairs or additions 3.❑ 1 am a homeowner doing all work officers have exercised their I I.❑ 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 q ] employees. [No workers' 13.❑ Other Solar Installation comp. insurance required.] *Any applicant that checks box#1 most also till 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 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 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 Company Policy#or Self-ins. Lic.#: 1WCn509601300 Expiration Date: 11/l/2015 Job Site Address: t-�W .City/State/Zip: �itfY� 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. I do hereby certify under the pains and penahles ofperjury that the information provided above is true and correct. Sienature: , �Z, Date•11/4/2014 Phone#: 801-2296459 Official use only. Do not write in this area,to be completed by city or town official. 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#: VIVINT SOtAR DEVELOPER LLC PHILIP F ZA14PITELLA JR (EL) 4931 N 300 W PROVO UT 84604 FOK Then Cahn A m All Pa.I s C>f 01mvi TH OF 1i1 U.R • • • 6LtqM"wwl C I ARsS z I ISSUES THE FOLLOWING MMLENSE AS RM. S RED MASTER ELECTRICIAN V1V'INT SOLAR DEVELOPER LLC PHILIP ff�&VMWLLA JR x 4931 N_ 300 W fqwvo wr 84604 13141 .A 07/31116 101.. VWu Y t solar 3301 North Thanksgiving Way,Suite 500 Structural Group Lehi,UT 84043 P: (801) 234-7050 Scott E. Wyssfing, PE Head of Structural Engineering scoff.wysslingL7a vivintsolar.com November 3, 2014 Mr. Dan Rock, Project Manager Vivint Solar 24 Normac Road Woburn MA 01801 Re: Structural Engineering Services Dalence Residence 59 Lawrence Street, Salem MA S-4039170 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 Visit/Verification Form prepared by a Vivint Solar representative identifying specific site information including size and spacing of trusses 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 prepared 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 truss system with all chords constructed of 2 x 4 dimensional lumber at 24"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 30 degree roof slopes on the dwelling areas. Ground snow load is 40 PSF for Exposure "B", Zone 2 per (ASCE/SEI 7-10). 2. Total area subject to wind uplift is calculated for the Interior, Edge and Corner Zones of the dwelling. vivi t. solar 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/mountinq hardware Total Dead Load=15 PSF The above values are within acceptable limits of recognized industry standards for similar structures and in accordance with the 2012 International Residential Code. Analysis performed of the existing roof structure utilizing the above loading criteria indicates that the existing truss system will support the additional panel loading without damage, if installed correctly. C. Root Structure Capacity 1. The photographs provided of the attic space and truss system 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 "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 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 Yi', 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 the panel length when installed parallel to the trusses (portrait). No panel supports spacing perpendicular to the trusses shall be greater than two (2) trusses or 48"o/c,whichever is less. 4. Panel supports connections shall be staggered to distribute load to adjacent trusses. 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 in conformance with the 2012 International Residential Code, current industry standards and practice, and based on information supplied to us at the time of this report. Should you have any questions regarding the above or if you require further information do not hesitate to contact me. Ve truly yours, tHOF agOl E CyG N Scott E. Wyss PE 50 MA License No.505 qoF eg1$7Ea� Fss/ONA� vivo Prot. s o l a r 59 Lawrence St, Salem MA 01970 U o C N -N--------- -- --� N�mw � 19)VinOli EnereV VL255P-29b MODULES WITH A F Enohase M215-60-2LL-$2z-ZC MICRO-INVERTER MOUNTED ON THE BACK OF EACH MODULE L) 0 I I C a CIO I 1 PV SYSTEM SIZE: I {6 4.845 kW DC I I 0 50'OF 1"PVC CONDUIT FROM JUNCTION BOX TO ELEC PANEL a JUNCTION BOX ATTACHED ARRAY USING ECO HARDWARE TO KEEP JUNCTION BOX OFF ROOF m N I I $n C g m � v I I I > � < 2 W W W W 2 M U I I Z Z f 0 PV INTERCONNECTION POINT, I SHEET LOCKABLE DISCONNECT SWITCH, ANSI METER LOCATION, NAME: &UTILITY METER LOCATION I I � Z L-------------- ---� � a SHEET NUMBER' PV SYSTEM SITE PLAN 4 SCALE: 3/32"= V-0" > a a� U o C o N Roof Section 2 _ o.. Rocf`nt 30 114 (n N m w RadTJL 30 LL a 3�2 V CIRCUIT#2: m i 9 MODULES Iv 0 (�'�'n O C � c LO COMP.SHINGL 0 ry m O a s B N 8 O ? m m PLUMBING VENT(S Q m o fie[ y a u E a > z d w diRoof Section 1 K A 41 ) W W Roof Azimu01:204 J z Roof Tilt:30 h N a SHEET NAME: LL Z 0 SHEET V CIRCUIT#1: NUMBER: TIE INTO METER J10 MODULES 57364020 PV SYSTEM ROOF PLAN 4 N SCALE: 1/8"= V-0" > a CLAMP MOUNTING c SEALING PV3.0 DETAIL WASHER LOWER '(n�mw SUPPORT �(D/8 i y�EEi r PV MODULES, TYP. MOUNT "` """' ` " C No OF COMP SHINGLE ROOF, FLASHING � PARALLEL TO ROOF PLANE / 2 1/Z" MIN 5/16"0 x 4 1/2" M r 5` MINIMUM STAINLESS /TS PV ARRAY TYP. ELEVATION STEEL LAG SCREW NOT TO SCALE TORQUE= l312 ft-Ibs O CLAMP ATTACHMENT V) NOT TO SCALE � e m eC CLAMP+ ATTACHMENT CANTELEVER L/4 OR LESS •cmI COUPLING W L=PERMITTED CLAMP ECO SPACING SEE CODE COMPLIANT COMPATIBLE LETTER FOR MAX ALLOWABLE MODULE CLAMP SPACING. o g m PERMITTED COUPLING mg m a CLAMP+ CLAMP CLAMP w - a ATTACHMENT r w E SPACING COUPLING PHOTOVOLTAIC MODULE > , 2 w w .. K W > W J Z m W Z f H J N N Q SHEET NAME: L=PORTRAIT77 F-: y CLAMP SPACING Z Q F O ECO 2 p L= MODULECOMPAT PV PV SYSTEM MOUNTING DETAIL SHEE LANDSCAPE T CLAMP SPACING NUMBER: MODULES IN PORTRAIT/LANDSCAPE NOT TO SCALE 1 M NOT TO SCALE Inverter Ratings(Guide Section 4) 0 Conduit and Conductor Schedule Iwerter MakwModel Captious 10215d0.21_1_Szx ZC Tap Description Wire Gauge pal coMudore COMUA Type conduit Sea MODULE DETAIL Max DC Vet Fears V. ^` Max Power®YO°C 215 Worse Enpr,aaeeVagetable-THWN-2 tYTwG p cpad NIR-Free Mr W n NomNaI AC Voltage 2401 Vets 1 Sere CopperGmundlEGf/GEc) 6AWG t WA-Free Nr NIA-pro Nr � O Yingli Energy YL255P-29b Max AC Current 091 Amps � SOLAR MODULE Max acco Ragrg z0 Amps 2 Tma N-2 10 AWG 6 WL 0 m Max Number of Parispi v z THWNa-Ground eAWG 1 FOG 01-1. 3 moon-z enwc 3 we 01 �_I�_ 1O NOTES FOR INVERTER CIRCURS(Guide Sedion6and 91: 3 THwn3-Ground eAWG 1 wC 0'-v (//rnOW re 1.)IF OIL"REQUIRES VISIBLE-BREAK SWITCH,DOES THIS PV Module Ratings(�STC(Guide Section 5) /�/ <� Enphase M215 0-2LLS2x-ZC SWITCH MEET THE REQUIREMENTS? 6y� Z' MICRO-INVERTERAT YES NO XNA Model MaketMpdel Yingli Energy YL255P-29b El_ Max PowerPpnl Curren) Im ) 8,32 Ampe EACH MODULE,ATTACHED I p (Doo u D 2.)IF GENERATION METER REQUIRED,DOES THIS METER Max PawerPoiet Voltage(Vmp) 306 Volta e O WITH ECO HARDWARE SOCKET MEET THE REQUIREMENTS? Open-Cimult Voltage(Wic) 36] Volts 0 YES NO XNA Shurt-Cimub Current(Iap) Stuff Amps >Q> 3.)SIZE PHOTOVOLTAIC POWER SOURCE(DC)CONDUCTORS Max Saries Fuse(OCPD) 15 Amps t_ BASED ON MAX CURRENT ON NEC 690.53 SIGN OR OCPD Nominal Maximum Parer at STC(Pmax) 255 Walls � MICROINVERTER CONNECTION _ RATING AT DISCONNECT. Max System Voeai 10000ECy6001UL) Q imum D TO ENGAGE TRUNK CABLE 4.)SIZE INVERTER OUTPUT(AC)CONDUCTORS ACCORDING Vae Temperature Ooeffident -0.32 9V°C ^ TO INVERTER OCPD AMPERE RATING(Sao Guide Section 9). V 5.)TOTAL OF 2 INVERTER OCPDIs).ONE FOR EACH NOTES FOR ARRAY CIRCUIT WIRING(Guide Section 6 and S and Appendix DI, PV CIRCUIT.DOES TOTAL SUPPLY BREAKERS COMPLY WITH 120%BUSBAR EXCEPTION IN 1)Lowest expected ambient temperature based on ASHRAE minimum mean extreme NEC6910.64(8)(2)(a)? XYES NO dry bulb temperature for ASHRAE location most similarto installation location: -19°C RB BARE CU GROUND GROUNDING ARRAY Signs See Guide Section 7 �• ( ) g ( ) le Highest for continuous ambient tempereturebasedon ASHRAEhighestmonth 2%dry bulb lempemWrefor ASHRAE bcatbn most similar to installation location: 39°C Sign for inverter OCPD and AC Disconnect: 3.)2005 ASHRAE fundamentals 2%design temperatures do not exceed 47°C in the Solar PV System AC Point of Connection United States(Palm Springs,CA is 44.1'C).For less than 9 cunenttcanying conductors 4 Y In roofanuunted sunlit conduit at least ON'above mot and using the outdoor design AC Output Cument 1 17.100000 Amps temperature IN 47°C ar less(all of United States). Names'AC Voltage 240 Valts a)12 AWG,90°C conductors are generally acceptable for modules With Ise of 7.68 Amps < or less When protected by a 12-Amp or smaller fuse. n THIS PANEL FED BY MULTIPLE SOURCES m (UTILITY AND SOLAR) b.)10 WhenWG,moscted by ing am a15rAG nerally or for modules with lscIN96 Amps o or less when rotededb a1SAm or smaller fuse. NOTE:NEUTRAL CONDUCTOR(S)OMITTED FOR CLARITY �� ALL INVERTER OUTPUT CIRCUITS WILL HAVE A NEUTRAL CONDUCTOR 20 r v rr PV CIRCUIT 1: 10 MODULES/PARALLEL ENVOY soxCi 5 m. it as1TPANEL S E1.0 MURRAY POINT OF DELIVERY '. a y wCOMBINER AND INTERCONNECTION `UUUi�O O 125A/240V SIEMENSGLWO04NR 60AI240V be w Q\t(xrp EQUIVALENT UNFUSED pi MPV CIRCUIT 2: 9 MODULES/PARALLEL i OT\F/a��Ls SREC/ANSI LNF222R OR SHEET �O\F F METER EQUIVALENT NAME: q\P�O�• EXISTING W It . . . Zap240V/200A z LOAD-CENTER :3Q A• • • f S \\ 30A SHEET NUMBER: JUNCTION BOX \\ MILBANK VISIBLEILOCKABLE �_ p 2 \\ 3 100A OR 3 'KNIFE'AIC 3 NEC 2014 Compliant WITH IRREVERSIBLE E 1 0 \ EQUIVALENT DISCONNECT GROUND SPLICE E 1.0 U5934-XL-BLG E 1.0 E 1.0 IJ.I Vivint Solar - PV Solar Rooftop System Permit Submittal 1. Project Information Project Name: Helmuth Dalence Project Address: 59 Lawrence St,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: 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: 800 Ibs d.Total number of attachment points: 35 e.Weight per attachment point: 22.85 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: (10)modules,(18)attachments 23.39 pounds -Roof section 2: (9)modules,(17)attachments 22.29 pounds per square foot vivint. solar 3. Electrical Components: A.Module (UL 1703 Listed) Qty Yingh Energy Y1.255P-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 M215-60-21.1--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 - 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 - 10 modules/inverters (15) amp breaker PV circuit 2 - 9 modules/inverters (15) amp breaker 2011 NEC Article 705.60(6) vivint. solar 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 OF) Conduit is installed I" 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 (140.721 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(B) 4.Voltage drop(keep below 3%total) 2 a s 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.tVlirco-inverter voltage drop: 0.48% The largest number of micro-inverters in a row in the entire array is 10 inCircuit 1.According to manufactureti s specifications this equals a voltage drop of 0.48%. 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(0.0031%2) x(100) +(240 volts)x(100) 1.19% Total system voltage drop: 1.67% vivin4. solar EcolibriumSolar Customer Info Name: 4039170 Email: Phone: Project Info Identifier: 14599 Street Address Line 1: 59 Lawrence St 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 wafts): 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 EcolibriumSolar Plane Calculations (ASCE 7-10): 1 Roof Shape: Hip Edge and Corner Dimension: 3.0 ft Roof Type: Composition Shingle Stagger Attachments: No Average Roof Height: 25.0 ft Include Snow Guards: No Least Horizontal Dimension: 10.0 ft Roof Slope: 30.0 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 0.73 0.73 0.73 Roof Snow Load 24.5 24.5 24.5 psf Wind Pressure Calculations Description _ Interior Edge Corner Unit Net Design Wind Pressure Uplift N/A N/A N/A psf Net Design Wind Pressure Downforce N/A N/A N/A psf Adjustment Factor for Height and Exposure Category N/A N/A N/A Design Wind Pressure Uplift 1 -22.6 1 -27.2 -27.2 1 psf Design Wind Pressure Downforce 20.8 20.8 20.8 psf ASD Load Combinations Description Interior Edge Corner Unit Dead Load 2.3 2.3 2.3 psf Snow Load 24.5 24.5 24.5 psf Downslope: Load Combination 3 11.8 11.8 11.8 psf Down: Load Combination 3 20.4 20.4 20.4 psf Down: Load Combination 5 14.5 14.5 14.5 psf Down: Load Combination 6a 25.2 25.2 25.2 psf Up: Load Combination 7 -12.4 -15.1 -15.1 psf Down Max 25.2 25.2 25.2 psf Spacing Results(Landscape) Description Interior Edge Corner Unit Max Allowable Spacing Between Attachments 65.5 65.5 65.5 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 21.8 21.8 21.8 in Spacing Results(Portrait) Description Interior Edge Corner Unit Max Allowable Spacing Between Attachments 43.4 43.4 43.4 in Max Spacing Between Attachments With Rafter/huss Spacing of 16.0 in 32.0 32.0 32.0 in Max Cantilever from Attachment to Perimeter of PV Array 14.5 14.5 14.5 in EcolibriumSolar Layout r_a cn O C I I l.+ 2 Skirt e Coupling 0 Clamp Warning: PV Modules may need to be shifted with respect to roof trusses to comply with ® Bonding Jumper maximum allowable overhang. EcolibriumSolar Plane Calculations (ASCE 7-10): 2 Roof Shape: Hip Edge and Corner Dimension: 3.0 ft Roof Type: Composition Shingle Stagger Attachments: No Average Roof Height: 25.0 ft Include Snow Guards: No Least Horizontal Dimension: 10.0 ft Roof Slope: 30.0 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 0.73 0.73 0.73 Roof Snow Load 24.5 24.5 24.5 psf Wind Pressure Calculations Description Interior Edge Corner Unit Net Design Wind Pressure Uplift N/A N/A N/A psf Net Design Wind Pressure Downforce N/A N/A N/A psf Adjustment Factor for Height and Exposure Category N/A N/A N/A Design Wind Pressure Uplift 1 -22.6 1 -27.2 1 -27.2 1 psf Design Wind Pressure Downforce 20.8 20.8 20.8 psf ASD Load Combinations Description - Interior Edge Corner Unit Dead Load 2.3 2.3 2.3 psf Snow Load 24.5 24.5 24.5 psf Downslope: Load Combination 3 11.8 11.8 11.8 psf Down: Load Combination 3 20.4 20.4 20.4 1 psf Down: Load Combination 5 14.5 14.5 14.5 psf Down: Load Combination 6a 25.2 25.2 25.2 psf Up: Load Combination 7 -12.4 -15.1 -15.1 psf Down Max 25.2 25.2 25.2 psf Spacing Results(Landscape) Description Interior Edge Corner Unit Max Allowable Spacing Between Attachments 65.5 65.5 65.5 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 21.8 21.8 21.8 in Spacing Results(Portrait) Description Interior Edge Corner Unit Max Allowable Spacing Between Attachments 43.4 43.4 43.4 in Max Spacing Between Attachments With Rafter/Truss Spacing of 16.0 in 32.0 32.0 32.0 in Max Cantilever from Attachment to Perimeter of PV Array 14.5 14.5 14.5 in EcolibriunnSolar Layout �o c - - x Skirt e Coupling 0 Clamp Warning: PV Modules may need to be shifted with respect to roof trusses to comply with 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: 70 Ibs Total System Weight: 845 Ibs Total Array Area: 334 ft2 Distributed Weight: 2.53 psf Number of Attachments: 35 Weight per Attachment Point: 24 Ibs Bill Of Materials Part Name Quantity ECO-001_101 EcoX Clamp Assembly 35 ECO-001_102 EcoX Coupling Assembly 23 ECO-001_105B EcoX Landscape Skirt Kit 10 ECO-001 105A EcoX Portrait Skirt Kit 0 ECO-001_103 EcoX Composition Attachment Kit 35 ECO-001_109 EcoX Electrical Assembly 2 ECO-001_106 EcoX Bonding Jumper Assembly 4 ECO-001_104 EcoX Inverter Bracket Assembly 19 ECO-001 338 EcoX Connector Bracket 19