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HomeMy WebLinkAboutBuilding Permit #536 - 150 JOHNSON STREET 1/28/2013 - BUILDING kRMT TOWN OF NORTH ANDOVER APPLICATION FOR PLAN EXAMINATION w Permit NO: Date Received ATIP Date Issued: f �9SSACHUS t IMP RTANT: Applicant must complete all items on this page r � q , Met n LOCATION 60-, IN". 8enn I Print k PROPERTY OWNER G n.t4 s Print MAP NO: PARCEL: ZONING DISTRICT:' Historic District , . ye n Machine Shop Villaagem ye s no TYPE OF IMPROVEMENT PROPOSED USE Residential Non- Residential ❑ New Building ❑ One family ❑Addition ❑ Two or more family ❑ Industrial ❑Alteration No. of units: ❑ Commercial ❑ Repair, replacement ❑Assessory Bldg ❑ Others: ❑ Demolition ❑ Other ❑ Septic El Well ❑ Floodplain ❑Wetlands a Watershed District El Water/Sewer Identification Please Type or Print Clearly) Q G� OWNER: Name: �SGtSDct''• Phone: 7 �0 9,-, Address: CONTRACTOR Name: s Phone' _ s F Address: Supervisor's Construction)License: 05 Exp. Date: Home improvement License: Up. , Date: ARCHITECT/ENGINEER P►Yx 9g Phone: 7 -�04 • $902 Address: I q0 Reg. No. � FEE SCHEDULE.BULDING PERMIT.$12.00 PER$1000.00 OF THE TOTAL ESTIMATED COST BASED ON$125.00 PER S.F. Total Project Cost: 54 - FEE: $ '' Check No.: Receipt No.: NOTE: Persons co tracting with unregistered contractors do not have aess to the guaranty fund S g ture of Agent/Owner Signature of contractor TOWN OF NORTH ANDOVER APPLICATION FOR PLAN EXAMINATION Permit NO: Date Received Date Issued: IMPORTANT: Applicant must complete all items on this page LOCATION Print PROPERTY OWNER Print 100 Year Old Structure yes no MAP NO: PARCEL: ___ ZONING DISTRICT: _ Historic District yes no Machine Shop Village yes no TYPE OF IMPROVEMENT PROPOSED USE Residential Non- Residential ❑ New Building ❑ One family ❑Addition ❑Two or more family ❑ Industrial ❑Alteration No. of units: ❑ Commercial ❑ Repair, replacement ❑Assessory Bldg ❑ Others: ❑ Demolition ❑ Other ❑ Septic ❑Well ❑ Floodplain ❑Wetlands: 0 Watershed:District ❑Water/Sewer DESCRIPTION OF WORK TO BE PERFORMED: Identification Please Type or Print Clearly) OWNER: Name: Phone: Address: CONTRACTOR Name: Phone: Address: Supervisor's Construction License: Exp. Date: Home Improvement License: Exp. Date: ARCHITECT/ENGINEER Phone: Address: Reg. No. FEE SCHEDULE:BULDING PERMIT:$12.00 PER$1000.00 OF THE TOTAL ESTIMATED COST BASED ON$125.00 PER S.F. i Total Project Cost: $ FEE: $ Check No.: Receipt No.: NOTE: Persons contracting with unregistered contractors do not have access to the guaranty fund Slgnature2of Agent/Ovvner Signature of contractor . Plans Submitted ❑ Plans Waived ❑ Certified !',lot Plan ❑ Stamped Plans ❑ i Plans Submitted ❑ Plans Waived ❑ Certified Plot Plan ❑ Stamped Plans ❑ TYPE OF SEWERAGE DISPOSAL Public Sewer ❑ Tanning/MassageBody Art ❑ Swimming Pools ❑ Well ❑ Tobacco Sales ❑ Food Packaging/Sales ❑ Private(septic tank,etc. ❑ Permanent Dumpster on Site ❑ THE FOLLOWING SECTIONS FOR OFFICE USE ONLY INTERDEPARTMENTAL SIGN OFF - U FORM DATE REJECTED DATE APPROVED PLANNING & DEVELOPMENT ❑ ❑ COMMENTS CONSERVATION Reviewed on Signature COMMENTS HEALTH Reviewed on Signature COMMENTS Zoning Board of Appeals: Variance, Petition No: Zoning Decision/receipt submitted yes Planning Board Decision: Comments Conservation Decision: Comments Water & Sewed' Driveway Connection/Si nature& Date Permit a y DPW Town Engineer: Signature: Located 384 Osgood Street FIRE DEPARTMENT - Temp Dumpster on site yes no Located at"124-Mn�Street Fire Department-signature/date COMMENTS k J Dimension Number of Stories: Total square feet of floor area, based on Exterior dimensions. Total land area, sq. ft.: ELECTRICAL: Movement of Meter location, mast or service drop requires approval of Electrical Inspector Yes No DANGER ZONE LITERATURE: Yes No MGL Chapter 166 Section 21A—F and G min.$100-$1000 fine NOTES and DATA— (For department use U Notified for pickup - Date E E E t E Doc.Building Permit Revised 2010 Building Department The following is a list of the required forms to be filled out for the appropriate permit to be obtained. Roofing, Siding, Interior Rehabilitation Permits ❑ Building Permit Application ❑ Workers Comp Affidavit ❑ Photo Copy Of H.I.C. And/Or C.S.L. Licenses ❑ Copy of Contract ❑ Floor Plan Or Proposed Interior Work ❑ Engineering Affidavits for Engineered products NOTE: All dumpster permits require sign off from Fire Department prior to issuance of Bldg Permit Addition Or Decks o Building Permit Application ❑ Certified Surveyed Plot Plan o Workers Comp Affidavit ❑ Photo Copy of H.I.C. And C.S.L. Licenses ❑ Copy Of Contract ❑ Floor/Crossection/Elevation Plan Of Proposed Work With Sprinkler Plan And Hydraulic Calculations (If Applicable) ❑ Mass check Energy Compliance Report (if Applicable) ❑ Engineering Affidavits for Engineered products NOTE: All dumpster permits require sign off from Fire Department prior to issuance of Bldg Permit New Construction (Single and Two Family) ❑ Building Permit Application ❑ Certified Proposed Plot Plan ❑ Photo of H.I.C. And C.S.L. Licenses ❑ Workers Comp Affidavit ❑ Two Sets of Building Plans (One To Be Returned) to Include Sprinkler Plan And Hydraulic Calculations (If Applicable) ❑ Copy of Contract ❑ Mass check Energy Compliance Report ❑ Engineering Affidavits for Engineered products NOTE: All dumpster permits require sign off from Fire Department prior to issuance of Bldg Permit In all cases if a variance or special permit was required the Town Clerks office must stamp the decision from the Board of Appeals that the appal period is over. The applicant must then get this recorded at the Registry of Deeds. One copy and proof of recording must be submitted with the building application Doc: Doc.Building permit Revised 2012 Location [�Y ♦ 11J4/1�k12 S No. Date .{• '+ TOWN OF NORTH ANDOVER ' 4J�3. ,171)Y lir . .' m Certificate of Occupancy $ Building/Frame Permit FeeNX $ � Foundation Permit Fee $ Other Permit Fee $ kf : TOTAL $ f Check# 26118 buiTring Inspector Enter construction cost for fee cal - North Andover Fee Calculation Construction Cost $ 34,913.00 m $ - $ 418.96 Plumbing Fee $ 52.37 Gas Fee 100 comm. $ 100.00 j Electrical Fee $ v7 S e g- ¢X Total fees collected $ 623.70 150 Johnson Street 536-13 on 1/28/2013 35 Solar Panel Installation NORTFf ve" ,* 0 .,: No. T ver, Mass ago ' O LAM! A- C OC NIC Nl MACK � 7�A�R�TED S 1J BOARD OF HEALTH PER LD Food/Kitchen Septic System BUILDING INSPECTOR THISCERTIFIES THAT ............. ...... iN .�.... .....:...................................................................... aw womp Foundation has permission to erect .......................... buildings on . ... ......... 7 ..... 04.0%..�.7.. ............. ...... Rough to be occupied as .. ....... �,�M ........ ... ..a............................................. Chimney provided that the person accepting this permit shall.i every respect conform to the terms of the application Final on file in this office, and to the provisions of the Codes and By-Laws relating to the Inspection,,Alteration and Construction of Buildings in the Town of North Andover. PLUMBING INSPECTOR Rough VIOLATION of the Zoning or Building Regulations Voids this Permit. Final PERMIT EXPIRES IN 6 MONTHS ELECTRICAL INSPECTOR �• UNLESS CONSTRUCT S TS Rough Service Final BUILDINTMECTOR GAS INSPECTOR Occupancy Permit Required to Occupy Building Rough Display in a Conspicuous Place on the Premises — Do Not Remove Final No Lathing or Dry Wall To Be Done FIRE DEPARTMENT Inspected- and. Approved b the Building Inspector. Burner Until Inspec pp Y g Street No. Smoke Det. SEE REVERSE SIDE ACS V CERTIFICATE 4F LIABILITY INSURANCE �h` /D4w/2/12 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(iss)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 NAME: T John M Connolly Wedgwood—Crane & Connolly Ins PHONE ( 625-0781 FAX NO: (617) 625-6460 WC No ExU*;j1.9 College Ave anAEss: jmconnolly@wccinsuiance-com 19OX 440313 INSURERS)AFFORDING COVERAGE NAICII Somerville, MA 02144-000 . INSURER A.,Western World Insurance Co. INSURED INSURER o:Liberty Mutual Insurance Group SUNBUG SOLAR LLC' iNsuRERc:Arbella Protection 411A HIGHLAND AVE Ste 312 INSURER D:Associated' International Ins Attn:Lisa Raffin INSURER E: SOMERVILLE, MA 02144 INSURER F: COVERAGES CERTIFICATE NUMBER: REVISION NUMBER: 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'CONOTIONS OF SUCH POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. POLICY EFF POLI I{N,7R TYPEOFINSURANCE INS UBR POU CYNUMBER MIDDAY MMMUOIYYYY LIMITS A GENERALLIABILITY NPP1331741 4/1/12 4/1/131 EACH OCCURRENCE $ 1.000,000 DANMGETO ELATED S SO OOO X COMMERCIAL GE NE RALLIABILITY CLANS-MADE ❑OCCUR hED EXP(Anyore person) s 5,000 PERSONAL&ADV INJURY S 1 OOO O00 GENERAL AGGREGATE s 2,000,000 GENTAGGREGATE LIMITAPPLIES PER PRODUCTS-OOMPIOPAGG S 2,000,000 POLICY FRO-FIFCT F7 LOC ING $ C AUTOMOBILEIJA81UTY 22194400004 1/21/12 1/21/13 EaecciNden L L' S 1,000,000 X ANYAUTO BODILY INJURY(Per person) S ALLOWNED SCHEDULED BODILY INJURY(Per axident) S AUTOS AUTOS P NON-OWNED PerROPERTY aoaderd DAMAGE S HIREDAUTOS _AUTOS S D UMBRELLA LIM X OCCUR CUBW3245310 10/29/11 10/29/12 EACH OCCURRENCE S 4,000 000 EXCESS LIAO CIAIMS-MADE AGGREGATE S 4,000,000 DED RETENTION$ $ B WORKERS COMPENSATION WC31S372506-019 4/1/12 4/1/13 wCSTATU• 0TH• AND EMPLOYERS'LIABILITY Y I N ANY PROPRIETORIPARTNEREXECUTNE NIA - EL.EACHA CADENT $ 1,000,000 OFFI ERMEMBER EXCLUDED? E.L.DISEASE-EA EMPLOYE S 1.000,000 (Ma dabry in NH) M descrlbeunder E.L.DISEASE-POLICYLIMIT S 1.000 000 DESCRIPTION OF OPERATIONS below DESCRIPITONOFOPERATIONS ILOCATIONS IVEHICLES(AttachACORD 101,AddidondRensrksSchedde,ifmore spacelsregdred) All work performed by the insured for the certificate holder. The certificate holder is listed as an additional insured. CERTIFICATE HOLDER CANCELLATION SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE CPE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN c/o Adam Buckfelder ACCORDANCE WITH THE POLICY PROVISIONS. 201 Mission Street Suite 1100 au>tloRlzEORE E aTAIE Sna Fancisco, CA 94105 ©1988 2010 ACORD CORPORATION. All rights reserved. ACORD 25(2010105) The AC ORD name and logo are registered marks of ACORD Phone: Fax: E-Mail: The Commonwealth of Massachusetts Department of Industrial Accidents Office of Investigations 600 Washington Street Boston,MA 02111 UIP www mass.gov/dia Workers' Compensation Insurance Affidavit: Builders/Contractors/Electricians/Plumbers Applicant Information Please Print Legibly Name (Business/Organization/Individual):S u n B u g Solar Address:411 A Highland Avenue, Suite 312 City/State/Zip-Somerville, MA Phone #:617-500-3019 Are on an employer?Check the appropri x: Type of project(required): 1 t♦ lI am a employer with 10 4I am a general contractor and I 0 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.t 7Remodeling ship and have no employees These sub-contractors have 8. emolition working for me in any capacity. workers' comp.insurance. 9. 3uilding addition [No workers' comp. insurance 5.ae are a corporation and its required.] officers have exercised their 10 lectrical repairs or additions 3F11 am a homeowner doing all work right of exemption per MGL 11 lumbing repairs or additions myself. [No workers' comp. c. 152,§1(4),and we have no 12 Zoof repairs insurance required.]t employees. [No workers' comp. insurance required.] 13 they Solar Installation *Any applicant that checks box#1 must also fill out the section below showing their workers'compensation policy information. t Homeowners who submit this affidavit indicating they are doing all work and then hire outside contractors must submit a new affidavit indicating such. lContractors that check this box must attached an additional sheet showing the name of the sub-contractors and their workers'comp.policy information. I am an employer that is providing workers'compensation insurance for my employees. Below is the policy and job site information. Insurance Company Name: Liberty Mutual Insurance Group Policy#or Self-ins.Lic.#: WC31 S37506-01'9' Expiration Date: April 1 , 2013 nV Job Site Address: / 0nswI Uft'i City/State/Zip: 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 u the aims and en aloes o e ' that the information provided above is true and correct Signature: Date: Z3, Phone#: 617- 01936 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#: e 4112f1tC ltft�f'Clr� of 11ajw deo i - tllliee(fl'Ci nsumer Affairs and 1 tlsine,, Regulation 10 Park Phla - Sidle 5 170 fat>.tt�It. �1.l��aellu�ctt� 0-I 10 f le�rnc 1ntl�rtF���m�-rat C't,rttractur ltc,_istrati.tn �ev,51�a1.�rn 15sCD51 Tvve --L. Expuanon 5,11.20Q Ter 211:21 SUN BUG SOLAR LLC CHENEY BRAND 411A HIGHLAND AVE S7 312 SOMERVILLE AAA 02144 I IMlalr lddrrN,And,return rwrit_MAr6 tenu#n for ch2see. \Adre" Rene"R! t.mpl+rWeal i rnt t Red r G I Mire. o.."Nwr illi .A llhiar.��lrprl l}w I.xert+r+rr rr r.[ejtir,n.:+ltd leer Intl l+adri u.e nnh HOMEIMPROVEMENT CONTRACTOR before the r%lnrytwn date. r1 Word return!}r I w {teyst�pn. .S30r,. Toe +rliire.if 1 nw.umer ,ffa+e.and Bu.rne5.Neputaur+n EsprrattOn. 5 In!`Rel.r'tara 1�eutr q1't SUN 8:.:3 SOUR_LC r � Z%;:N SPAN,,) .."'AH }+-AU:)ASE ST 312 M—Z1;""_.. ,`A !n•_'tnrrrreat+ Not 1.111.1 1111""1.rvnalure b ass I, B-Jr t3 s Tc y ) t t�ra,treccnm'+Itp.r,taur .e?sk CS-099037 CHENEY C BRAND I t MORRISON PLACE NO.2 Somerville MA 02141 - °" 021`121014 EAH Consulting 290 Pleasant Street, Unit 117 Watertown, MA 02472 Phone: 1.978.406.8921 EAH CONSULTING Elaine.Huancj@alum.mit.edu January 23rd, 2013 To: Sunbug Solar 441A Highland Ave Somerville, MA 02144 Subject: Structural Certification for Installation of Solar Panels Henke-McGrath Residence 150 Johnson Street North Andover, MA 01845 To whom it may concern: A design check for the subject residence was done on the existing roofing and framing systems for the installation of solar panels over the roof. From a field inspection of the property,the existing roof support structure consists of nominal 2"x10" rafters that are spaced at 16"oc, paired with 2"x8: ceiling joists. The rafters have a horizontal span of approximately 14'-6" and a slope of 36 degrees. The rafters are connected to a continuous 2"x12" header board at the pitch, and load bearing walls on either side. There are 2"x4" collar ties at 32"oc for structural stability. The roof coverings consist of asphalt shingles over plywood sheathing. The existing roof framing systems are judged to be adequate to withstand the loadings imposed by the installation of the solar panels. No reinforcement is necessary. The spacing of the solar attachments should be 48"oc at maximum with a staggered pattern to ensure proper distribution of loads. I further certify that all applicable loads required by IRC 2009 with Massachusetts amendments were applied to the SnapNrack solar rail system and analyzed. The applicable loads are indicated in the load combination table and the summation of maximum loads indicated on permit plan,which is part of this submittal package. Furthermore, I was informed that the installation crews have been thoroughly trained to install the solar panels based on the specific roof installation instructions developed by AEE Solar for the racking system, and by Sunpower for the roof connections. Finally, I accept the certifications indicated by the solar panel manufacturer for the ability of the panels to withstand high wind and snow loads. V OF MAssq Sincerely, �� ELAINE A. o HUANG —� CIVIL W Elaine A. Huang, P.E. �Fc.4902` 0 Structural Engineer NAL ENG 1 EAH Consulting 290 Pleasant Street, Unit 117 Watertown, MA 02472 ` Phone: 1.978.406.8921 SAW Gan,SubTtara Elaine.Huana@alum.mit.edu Project: Henke-McGrath Residence Client: Sunbug Solar Location: 150 Johnson Street,North Andover,MA 01845 Date: 1/23/2013 Engineer: Elaine A Huang,PE Load and Load Combination: Dead Load: Plywood or Plank Roof Deck= 5 psf(ASCE-7 Table C3-1) EPDM roofing= 2 psf(ASCE-7 Table C3-1) Insulation = 1 psf Solar Panels=4 psf(Given by Product Catelog) Total Dead Load =5+2+ 1+4= 12 psf Live Load: Tributary area of each rafter<200 ftZ Slope of roof= 36° From IRC Table R301.6,the minimum roof live load is 16 psf. Snow Load: Ground Snow Load, Pg: City of North Andover, MA= 50 psf(Mass Residential Code, 780 CMR, 8th Ed.) Flat Roof snow load = Pf=0.7 Ce Ct I pg=0.7 x 0.9 x 1 x 1 x 50 psf= 31.5 psf (ASCE-7, Eq. 7-1) Ce=exposure factor=0.9, (ASCE-7,Table 7-2),Terrain B,fully exposed Ct=thermal factor= 1.0(ASCE-7,Table 7-3), heated structure I =importance factor= 1.0(ASCE-7,Table 7-4), occupancy category II Sloped roof snow load PS=CS Pf= 1.0 x Pf=31.5 psf(ASCE-7, Equation 7-2) CS=slope factor= 1.0(ASCE-7 Fig. 7-2a),Cold roofs with Ct= 1.0 Wind Speed: Basic Wind Speed: City of North Andover, MA= 100 mph (Mass Residential Code, 780 CMR, 8th Ed.) Wind Pressure: From IRC Table R301.2 (2), Wind Load for Components and Cladding(Solar panels) Roof pitch =approximately 36° Roof zone=3 Effective Wind Area = 20 ftz Wind Pressure= 16 psf(downward)or-20 psf(uplifting)for exposure B (surburban) 2 " EAH Consulting 290 Pleasant Street, Unit 117 ' = Watertown, MA 02472 Phone: 1.978.406.8921 6AH CONSULTING Elaine.Huang@alum.mit.edu From ASCE-7,for Main Wind Force Resisting System (wood rafters) C,=0.00256 K, KZt Kd V2 I (ASCE-7, Equation 6-15) KZ =velocity pressure exposure coefficient=0.70(ASCE-7,Table 6-3), 30' building Kit=topographic factor= 1.0(ASCE-7,Section 6.5.7.2) Kd=wind directionality factor=0.85 (ASCE-7,Table 6-4), main wind force resisting system V= 100 mph (Mass Residential Code, 780 CMR,8th Ed.) I = 1.0(category II) Therefore,qZ=0.00256 x 0.70 x 1 x 0.85 x 1002 x 1 = 15.2 psf(downward) From ASCE-7 Figure 6-2, Design Wind Pressures for Main Wind Force Resisting System (enclosed building), Wind Vertical Pressure=6.9 psf(downward) and -10.8 psf maximum (uplift) Use 16 psf downward force and -20 psf upward force for calculation to maximize load forces. Downward Load Combination(ASD): D+S=44 psf D+W=28 psf D+0.75W+0.75S=48 psf(controls) Uplift Load Combination(ASD) D+S=44 psf 0.61)+W=-12 psf D+0.75W+0.755=21 psf Roof Structures The roof consists of asphalt shingle on plywood sheathing that is supported by nominal 2"x10" rafters, paired with 2"x8" ceiling joists. The rafters have a horizontal span of approximately 14'-6"and a slope of 36 degrees. The rafters are connected to a continuous 2"x12" header board at the pitch, and load bearing walls on either side. There are 2"A" collar ties at 32"oc for structural stability. Structural Analysis and Calculation Roof Rafters: Member Size=2"x10" Spacing= 16" O.C. Span Length = 14.5' approximately 3 EAH Consulting 290 Pleasant Street, Unit 117 Watertown, MA 02472 Phone: 1.978.406.8921 EAH CoNnuwriNQ Elaine.Huanq@aium.mit.edu w=48 psf x 16 in/(12 in/ft) =64 lbs/ft Check moment capacity of wood rafters: M =wL2/8=64 lbs/ft x(14.5 ft)2/8= 1682 lbs-ft S= bd2/6=21.39 in M/S= 1682 lbs-ft x 12 (in/ft)/21.39 in =944 psi Fb(SPF Not/No2) =875 psi X C,X CD X CF 875 psi x 1.15 x 1.15 x 1.1 = 1273 psi,OK Cr= repetitive factor= 1.15 (2"width) (NDS Table 4A) CD=duration factor for snow load = 1.15 (NDS Table 2.3.2) CF=shape factor= 1.1 (2"x10") (NDS Table 4A) Check uplift moment capacity of roof rafters: M =wL2/8= 17 lbs/ft x(14.5 ft)2/8=447 lbs-ft S= bd2/6=21.39 in • 3 M/S - - / lbs-ft x(12 in/ft /21.39 in - 251p si Fb(SPF no 1/no 2) =875 psi x Cr X CD x CF X CL =875 psi x 1.15 x 1.15 x 1.1 x 0.25 =443 psi, OK Cr= repetitive factor= 1.15 (2"width) (NDS Table 4A) Co=duration factor for snow load = 1.15 (NDS Table 2.3.2) CF=shape factor= 1.1 (2"x10") (NDS Table 4A) CL = stability factor=0.25 Check shear capacity of roof rafters: V=wL/2=64 lbs/ftx 14.5ft/2=464 lbs Vmax=3V/2A= [3 (464 lbs)]/[2 (13.88 in2)] = 50 psi F„= 135 psi,OK Check deflection of roof rafters: 4 EAH Consulting 290 Pleasant Street, Unit 117 Watertown, MA 02472 Phone: 1.978.406.8921 EAH CONSULTING Elaine.Huang@alum.mit.edu �cotai=5wL4/384E1 =(5 x 0.064 K/ft x 14.54 ft4 x 123 in3/ft3)/(384 x 1400 psi x 98.93 in4) =0.460" L/180= 14.5' x(12 in/ft)/180=0.967 in, OK(IRC Table R301.7) 5 October 24, 2012 Susan Henke and Martin McGrath 150 Johnson St North Andover, MA 01845 Susan and Martin, It was a pleasure meeting with you to discuss the solar potential of your home. I admire your commitment to having a more energy efficient home. Here is your formal proposal for your new solar PV system. Please do not hesitate to ask me any questions you may have. Notes: • Based on the utility bills you supplied, in the last 12 months you consumed 13,230 kWh and currently pay $0.13 cents per kWh. Your utility provider is National Grid. • Included in the gross price of the system is relocating the vent pipe on your south-facing roof in order to maximize the usable space for a solar PV installation. •The solar modules utilized in your new PV system are high-quality, US-made solar modules. They are high-quality solar modules with a positive power-tolerance, black frames and a black back sheet. •The system utilizes Enphase Microinverter technology to reduce the effect of array shading. This also is the same cost as two central inverters that would be needed for the 37 modules, so it is seen as a very wise investment. 9.25kW Photovoltaic system: - SolarWorld 250 watt All-Black modules,7Enphase M215 Microinverters, and all 1� necessary balance of system materials(racking, wiring, disconnects, etc.). This price for complete, turnkey installation including all permits and rebate paperwork. The gross price of this system installed is $3 , 88 9 3 Less Commonwealth Solar 11 rebate -$2 Less 30%federal tax credit* -$10,472 Less 15%state tax credit*(capped at$1,000) -$1,000 Less South Church discount(and equivalent donation) -$300 Total anticipated cost after rebates and tax incentives $23,135 411 A Highland Avenue Suite 312 Somerville, MA 02144 P 617 500 3938 F 617 d 12 3062 www sunbugsolor corn Solar Savings & Your Electric Bill Current power profile Power profile with solar 1% 3% 3% 4/01% 14% — D Coal&Oil -� nSolar 20% aNatural Gas aCoal&Oil 17%" a Natural Gas ❑Nuclear 6% _ o Renewable 71% a Nuclear 609r o Renewable a Hydro&Other a Hydro&Other The 9.25kW system will produce on average approximately 9,400 kWh/year, or 784 kilowatt hours per month depending on time of year(more in the summer months, less in the winter months). Based on your consumption,this system will allow you to produce approximately 71%of your electricity yourself. Environmental Savings Over its 30 year anticipated life-cycle, it will generate more than 263,000 kWh of energy from the sun. In that time it will save 181 metric tons of CO2 from entering the atmosphere, equivalent to: •the annual greenhouse gas emissions from taking 36 cars off the road for one year, •or the carbon sequestered annually by 39 acres of pine or fir forests. System Monitoring Included in your solar PV system installation will be our SunWatch Meter (www.su nwatch meter.com). This monitor allows you to track your system performance in real time from your computer, and allows us to make sure that all is working properly. You will have the ability to monitor your PV system's production and your home's electricity consumption with the SunWatch Meter monitoring system. The Enphase Enlighten monitoring software suite will provide a per-panel production monitoring that will allow you to see the performance of each panel in your solar array. SunWatch Meter: Enphase Enlighten Monitoring: _ . .._.,. .. .r t+ A 411A Highland Avenue Suite 312 Somerville, MA 02144 P:617 500 3938 F- 617 412 3062 1 www sunbugselu°.com Electric Bill After factoring in SREC revenue, your new PV system could eliminate your home's entire electricity cost. Solar savings reduce your annual electricity consumption and your remaining costs of electricity can be offset by SREC revenue. In fact, in its first year, solar savings plus SREC revenue at the minimum level of$300/SREC will cover an anticipated 225%. Photovoltaic Incentives and Return on Investment On-going Revenue: Solar Renewable Energy Credits The Massachusetts Department of Energy Resources runs a Solar Credit Market. This program offers an on-going production incentive for making solar energy, above and beyond electricity savings. For every megawatt hour(MWh) of electricity produced, system owners earn one SREC, or Solar Renewable Energy Credit, which are then sold to back the electric utilities needing to meet state solar energy mandates. SRECs behave like stock certificates. They are bought an sold on a market administered by the Massachusetts Department of Energy Resources. An SREC does not represent electricity itself-solar system owners make their own electricity and experience the associated utility savings independent of the SREC program. SRECs are an additional financial incentive for Photovoltaic electricity producers. SRECs are bought and sold on an open market. However, there are price support mechanisms put in place by the DOER to create a ceiling and floor values for SRECs. The ceiling is determined by the fine levied on utilities for not meeting the solar standard. This is called the Alternative Compliance Payment(ACP) and for 2011 is set at$550 per megawatt hour(or SREC). The floor is established by the DOER's Solar Credit Clearinghouse, an auction of last resort should an SREC not sell. This Solar Credit Clearinghouse values SRECs at$300 each. The DOER has established an "opt-in term"for that Clearinghouse, based on when a PV system was installed. The current opt-in term is 10 years. Your system's SREC performance: SREC Rate Year 1 10 years Starting Rate 9 92 Min rate $ 285 $ 2,565 $ 26,226 Max rate $ 507 $ 4,600 $ 39,233 Rates are based DOER's 10 year SREC pricing guidelines,all less 7%trading fee 4.11 A Highland.avenue Suite 312 Somerville, MA 02144 P 617 500 3938 F 617 412 3062 w+v w.sun.b gsoicr cem Photovoltaic Direct Return on Investment SunBug's standard payback models assume 30 year system lifecycle and inverter replacement at year 15.** Annual Savings Before&After Payback $5,000 assuming minimum SREC value $4,000 a Inverter Replace $3,000 aAfter Payback $2,000 aBefore Payback $1,000 $0 - ■ Assuming minimum SREC value, payback occurs in 5 years with an anticipated: •24 years of free electricity, • lifecycle savings of over$65,000, •and Internal Rate of Return of over 19%. Annual Savings Before &After Payback assuming maximum SREC value $7,000 $6,000 $5,000 $4,000 a Inverter Replace $3,000 ■After Payback $2,000 `` ■Before Payback • $1,000 $0 1 3 S 7 9 11 13 15, 17 19 91 93 9.1, 77 79 Assuming maximum SREC value, payback occurs in 3 ears with an anticipated: pY Y p • 26 years of free electricity, • lifecycle savings of over$78,000, •and Internal Rate of Return of over 25%. SunBug s direct return on investment calculations are based on industry standards. Wed be happy to walk you through our assumptions and show you our complete calculations in detail. However, SunBug Solar makes no guarantees for projected savings based on this proposal,and advises customers to consult their own investment professional to calculate return on investment. 411A Highlclncl Avenue Suite 312 Somcrvilie, &AA 02144 P:6175003938 F:617 Al2 3002 +v. sunl�ugscyigr.cora i J" . moi' �J Photovoltaic Direct Return on Investment SunBug's standard payback models assume 30 year system lifecycle and inverter replacement at year 15.** Annual Savings Before&After Payback $5,000 assuming minimum SREC value $4,000 $3,000 a Inverter Replace ■After Payback $2,000 $1,000 •Before Payback $0 Assuming minimum SREC value, payback occurs in 5 years with an anticipated: •24 years of free electricity, • lifecycle savings of over$65,000, •and Internal Rate of Return of over 19%. Annual Savings Before &After Payback assuming maximum SREC value $7,000 $6,000 $5,000 $4,000 o Inverter Replace $3,000 aAfter Payback $2,000 I I I $1,000 ■Before Payback 1 $0 1 R fi 7 p 11 1R 11 17 19 91 93 11 77 9A Assuming maximum SREC value, payback occurs in 3 years with an anticipated: •26 years of free electricity, • lifecycle savings of over$78,000, •and Internal Rate of Return of over 25%. SunBug's direct return on investment calculations are based on industry standards. Wed be happy to walk you through our assumptions and show you our complc to calculations in detail. Howover, SunBug Solar makes professional to calculate return on investment. no guarantees for projected savings based on this proposal,and advises customers to consult their own investment 411A Highland A�enve Suite 312 Sorrierviile. MA 02144 P: 077 500 3v38 F: 6i7 412 3062 wWv•.5unbuy,ulo .rvrn 0 i Lam: •./. Installation Schedule The actual installation of your PV system should take approximately 2 days. However, coordinating with the Commonwealth Solar II rebate program, local building departments, etc. takes time, so we would schedule your solar PV installations for 6-8 weeks from receipt of signed proposal, in conjunction with rebate application timing. Terms and conditions Upon acceptance of this proposal, installation will be governed by the SunBug.Turn-Key Installation Agreement. Payment terms require $1000 due with signed proposal, 50% of gross price on rebate approval, 40%of gross price upon completion of installation, and 10% of gross price balance paid on utility interconnection. This proposal is valid 30 days from date of issue, or until Commonwealth Solar 11 rebate funding expires. If this proposal meets with your acceptance, please sign below. If you have questions, call me at 617-80-2519 to talk it through. Thank you, Mike Ozog ACCEPTED: Susan Henke and Martin McGrath t Date The availability of Federal and State tax credits is dependent on individual taxpayer information and not guaranteed by SunBug Solar.The availability and amount of rebates from Commonwealth Solar and/or your local utility are subject to change and not guaranteed by the paying party or SunBug Solar. "Investment calculations,including projected SREC revenues, are based on industry standards, including system specifications and output projection based on 30-year average weather data for the region. SunBug Solar makes no guarantees for system costs or savings based on this proposal,and advises customers to consult their own investment professional to calculate return on investment for any home or business improvement project. 4 i 1 A Highland Avenue Suite 312 Somerville, MA 02144 P:617 500 3938 F 0'17 412 3062 www.sunougsolor.com