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Home My WebLink AboutPV2021-224 - CalcsENGINEEr"41NC AIU Date: 11/12/2021 Job Number: 3804 " Prepared for: Sun Solar Energy Solutions, 4085 E La Palma Ave. Suite B Ahbh 'im, CA 928Q7 �5i�i3Hrurzrl --- Project.: Petroff Residence, 19 Point Loma Dr Corona, Del Mar !C%; 92625 The following calculations are for the structui valid only for the structural info referenced in responsibility of others. After review, I certify the applied PV loads. All PV mounting equips approved installation specifications. Engineerinc.io 303 N Glenoaks Blvd Suite 200 Burbank, CA 91502 (747) 333 - 5991 new@engi neerinc. io sped plan set. The verification- 6-f such info is the roof structuna-has sufficient structural capacity for W -tie designed and installed per manufacturer's z C 88083 ti �r9rCIVIL. �Q�� top CA01 Date Certified and Signed: 11/12/2021 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-59911 new@engineerinc.io ENGINEEX4INC Solar Module Details Module Type Sunpower Module Quantity 21 Module Model Number 350 WATT Design Criteria Code: 2019 California Building Code ASCE 7-16 Live Load (pat) Ult Wind Speed (mph) Exposure Cat Ground Snow (pat) Structure Geometry 20 120 C 20 Eave Height, he (ft) 15 to 20ft Pitch of main roof (deg) 23 Building Length, L (ft) 60 Building Width, B (ft) 50 Roof Area (Module Area) ft2 108.63 NOTE: attachments should be installed in a staggered configuratiion to properly destributor loading Roof Properties Roof Geometry type Mono Slope Roof Roof Type Single Span Rafter Roof Pitch (deg) 23 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1(747)333-59911 new@engineerinc.io ENGINEEP"ZINC Roofing Type Comp Shingles Sheathing Type 1/2" OSB Board Wood species No. 2, Douglas Fir -Larch Wood Fb (psf) 900 Wood Fv (psf) 180 Wood E (psf) 1600000 Purlin C/C Spacing (in) 12 Rafter CIC. Spacing (in.) 24 Purlin Section Thickness, b (in.) 12 Section Depth, d (in.) 4 Rafter Section Thickness, b (in.) 2 Section Depth, d (in.) 10 Maximum Rafter Span (ft) 18 Factors 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1(747)333-59911 new@engineerinc.io CNGINCC-.ZINC Dead Load(psf) Comp Shingles 3.00 psf 1/2" OSB Board 2.00 psf Insulation 2.00 psf Total Roof 1 DL 7 psf No. 2, Douglas Fir -Larch 1 31.00 Ib/ft3 Solar Panel DL 1 3.00 psf Roof 1 Roof -Dist -DL 7.00 psf M Roof Dist DL 903.56 Def -Roof -Dist -DL 0.19 PV uni_Dist_DL 3.00 psf M PV uni Dist DL 174.56 Def PV uni Dist DL 0.04 Total_Uni_DL 11.00 psf M Total DL 1078.12 Def -Total -DL 0.23 Snow Load(psf) Ground Snow Load, pg 20 Importance Factor, Ic 1 Thermal Factor, Ct 1 Exposure Factor, Ce 1 Flat roof snow, pF 20 Slope Factor, Cs 1 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-59911 new@engineerine.io ENGINEERINC Wind Load Sloped Row Snow, ps 1 20 Uni Dist S 20.00 M uni Dist s 810.00 Def uni Dist S 0.17 Ultimate Wind Speed 120 Directionality Factor,kd 0.85 Topographic factor 1.00 Velocity pressure exposure factor,kz 0.88 Ground Elevation Factor,ke 0.95 Side Wall Width 50 Median Roof Height 57.20 Velocity pressure,qz 27.57 External Pressure Up,GCp_1 -0.546 External Pressure Up,GCp_2 -0.6 External Pressure Up,GCp_3 -1.26 External Pressure Down,GCp -0.0388 Design Pressure Up,p_1 -12.58 Design Pressure Up,p_2 -13.83 Design Pressure Up,p_3 -29.04 Design Pressure Up,p -0.89 Uni_Dist_W_up -29.04 M_uni_Dist W_up -1176.12 Def uni_Dist_W_up -0.25 Uni Dist W down -0.89 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-69911 new@engineerinc.io ENGINEERINC M_uni_Dist W_down-36.05 Def uni Dist W down -0.01 Lag Screw Uplift Check (ASD) 5/16" Lag Screw Withdrawl value 205.00 Ib/in Lag Screw Penetration 2.50 in Roofl 0.6D+0.6W(up z1) 233.4 < 512.5 Roofl 0.6D+0.6W(up z2) 232.65 < 512.5 Framing Check (ASD): Seismic Check: Roofl uni 1.OD+0.6W 1078.12 < 2887.73 Lag Screw Penetration 1685.62 < 2887.73 Roofl 0.6D+0.6W(up z1) 1888.12 < 2075.56 Roofl 0.6D+0.6W(up z2) -58.80 < 2887.73 Wood 5.00 psf 2x4 Studs @ 16" 2.00 psf Gypsum 3.00 psf Misc(insulatioon,etc) 2.00 psf Total wall DL 12.00 psf Total Wall Area (Approx) 2590.00 ftZ Total Wall W 31080 Has Total Roof DL 7.50 psf Total Roof Area (Approx) 1303.52 ft2 Total Roof W 9776.4 lbs 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-59911 new@engineerinc.io CNGINCCRINC PV Panel W 3.00 psf Area of panel 104.28 ft2 Total Roof W 312.84 lbs % increase=(Wadditional)/Wexisting 10.82% OK The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no further seismic analysis is required. Limits of Scope of Work and Liability Existing structure is assumed to have been designed and constructed following appropriate codes at time of erection, and assumed to have appropriate permits. The calculations produced are only for the roof framing supporting the proposed PV installation referenced in the stamped planset and were completed according to generally recognized structural analysis standards and procedures, professional engineering and design experience, opinions and judgements. Existing deficiencies which are unknown or were not observable during time of inspection are not included in this scope of work. All PV modules, racking, and mounting equipment shall be designed and installed per manufacturer's approved installation specifications. The Engineer of Record and Engineerinc assume no responsibility for misuse or improper installation. This analysis is not stamped for water leakage. Framing was determined based on information in provided plans and/or photos, along with engineering judgement. Prior to commencement of work, the contractor shall verify the framing sizes, spacings, and spans noted in the stamped plans, calculations, and cert letter (where applicable) and notify the Engineer of Record of any discrepancies prior to starting construction. Contractor shall also verify that there is no damaged framing that was not addressed in stamped plans, calculations, and cert letter (where applicable) and notify the Engineer of Record of any concerns prior to starting construction. Prior to the commencement of work, the contractor shall verify the existing roof and framing conditions. Notify Engineerinc and the engineer of record of any Discrepancies prior to starting construction. Prior to the commencement of work, the contractor shall inspect framing for any damage such as water damage, cracked framing, etc. and notify the E.O.R. if any issues are found.These plans/calculations are stamped for structural code compliance of the roof framing supporting the proposed PV installation reference only. These plans/calculations are not stamped for water leakage. PV modules, racking, and attachment components must follow manufacturer guidelines and requirements. Attachments to be installed in a staggered orientation to properly distribute loads. 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-59911 new@engineerinc.io �� CSA CSA GROUP Laboratory Test Data - UL 9540A Checklist and Test Result GROUP'" ORIGINAL TEST DATA The results relate only to the items t�¢fep, rnr n ne akTr,rr it This report shall not be reproduced, except in full„ withoutrthe approt%al sof 6S 4,Groep Tastff &'G'e�ification Inc. nc NO Master Contract: 236698 Model: Powarwail�,upto,1541kWin,'1204240V 0�xx y ;'� , Page humber 15 of 45 Project / Network: 80084072 Description: Li' -Ion BES Section ° Requirement Re a) Both are collinear with the vertical " Conformed HFG are rertieall collinear with TC thermocouple array; array --- b) One is positioned at the elevation estimated -formed _ HFA graced at approx.-_6 inches above to receive the greatest heat flux due to the s — intiatin_g unit --_---._ --- thermal runaway of the initiating mgdule;- c) One is positioned at the elevatign'ostirtfaied Conformed; HFG wbs'}4itlglterl in -the side of to receive the greatest heat flux Burin g __ target -unit -facing fhe initiating unit potential propagation of thermal f6hal way within the initiating BESS unit. Heat flux measured with at least two water- ® Conformed cooled Schmidt-Boelter gauges at the surface of each adjacent target BESS unit that faces the initiating BESS unit: a) One is positioned at the elevation estimated Conformed, HFG was positioned in the side of to receive the greatest heat flux due to the target unit facing the initiating unit thermal runaway of the initiating module within the initiating BESS; and b) One is positioned at the elevation estimated Conformed, HFG was positioned in approx. 3 it to receive the greatest surface heat flux due to from the front of the target unit the thermal runaway of the initiating BESS. For non-residential use BESS, heat flux ® Conformed measured with at least one water-cooled Schmidt-Boelter gauge positioned at the mid height of the initiating unit in the center of the accessible means of egress. No. 24 -gauge or smaller, Type -K exposed ® Conformed junction thermocouples installed to measure the temperature of the surface proximate to the cells and between the cells and exposed face of the initiating module. Each non -initiating module enclosure within the initiating BESS unit instrumented with at least one No. 24 -gauge or smaller Type -K thermocouple(s) to provide data to monitor the thermal conditions within non -initiating modules. Additional thermocouples placed to account for convoluted enclosure interior geometries. UL 9540A Checklist and Test Result - Version4 : 01/25/2021 CSA GROUP CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP` ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y Page number 16 of 45 Project / Network: 80084072 Description: I Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement Comments For residential use BESS, the DUT covered ® Conformed with a single layer of cheese cloth ignition indicator. An internal fire condition in accordance with ® Conformed the module level test created within a single module in the initiating BESS unit: a) The position of the module selected to Single module unit, placement inside the module present the greatest thermal exposure to was selected to present greatest thermal exposure adjacent modules (e.g. above, below, to surround cells. laterally), based on the results from the module level test; and b) The setup (i.e. type, quantity and ® Conformed positioning) of equipment for initiating thermal runaway in the module is same as that used to initiate and propagate thermal runaway within the module level test (Section 8). The composition, velocity and temperature of ® Conformed the initiating BESS unit vent gases measured within the calorimeter's exhaust duct. Gas composition measured using a Fourier- ® Conformed Transform Infrared Spectrometer with a minimum resolution of 1 cm -1 and a path HFID was used. length of at least 2.0 m (6.6 ft), or equivalent gas analyzer. The hydrocarbon content of the vent gas shall ® Conformed be measured using flame ionization detection. Hydrogen gas measured with a palladium- ® Conformed nickel thin-film solid state sensor. The test shall be terminated if: a) Temperatures measured inside each ® Conformed module within the initiating BESS unit return to ambient temperature; b) The fire propagates to adjacent units or to There was no fire propagation to adjacent units or adjacent walls; or walls c) A condition hazardous to test staff or the A hazardous condition was not created, such that test facility requires mitigation. staff or facilities were at risk For residential use systems, the gas collection ® Conformed data gathered in 9.2 shall be compared to the smallest room installationspecified by the UL 9540A Checklist and Test Result - Version4: 01/25/2021 CSA GROUP CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP'" ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 17 of 45 Project/ Network: 80084072 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement Comments manufacturer to determine if the flammable gas collected exceeds 25% LFL in air. 9.3 Test method — Outdoor ground mounted units Outdoor ground mounted non-residential use ® Conformed BESS being evaluated for installation in close proximity to buildings and structures shall use the test method described in Section 9.2. If intended for outdoor use only installations, following measurement are not needed. - the smoke release rate, - the convective and chemical heat release rate and content, - velocity - temperature of the released vent gases Outdoor ground mounted residential use BESS ® Yes, requirement from test method described in being evaluated for installation in close Section 9.2 of UL 9540A except as noted in 9.3.3 proximity to buildings and structures. and 9.3.4 considered during testing. ❑ No Heat flux measurements for the accessible ® Heatflux measured means of egress. ❑ No accessible egress path Test samples installed as shown in Figure 9.2 ® Conformed in proximity to an instrumented wall section that is 3.66-m (12 -ft) tall with a 0.3-m (1 -ft) D — Distance of BESS from external wall wide horizontal soffit (undersurface of the eave shown in Figure 9.2). Required by manufacturer (in.): 1 The sample mounted on a support substrate Measured during testing (in.): 1 and spaced from the wall in accordance with the minimum separation distances specified by Sample was flush to posterior wall, using the the manufacturer. manufacturer's bracket to anchor it. No substrate was used. ?n UL 9540A Checklist and Test Result - Version4: 01/25/2021 f_ CSA GROUP C6'CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 18 of 45 Project / Network: 80084072 1 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Section I Requirement Comments Exception: If the manufacturer requires ❑ Test perfomed with manufacturer installation against non-flammable material recommended backing material ® Test perfomed without manufacturer recommended backing material Figure 9.2 Example of Outdoor Ground Mounted Residential Use BESS Test Arrangement Eave X X X X X pa w'.X X its +;e y.X 31 Wallx r; FaX BESS Io D Installation X substrate X SIDE VIEW s0474a X — Denotes typical thermocouple locations, specific positions dependent on installation details. D — Distance of ESS from external wall. Note: This is not representative of the test set-uused. Target BESS installed on each side of the ® Conformed initiating BESS in accordance with the manufacturer's installation specifications. 9.4 Test Method — Indoor wall mounted units Indoor wall mounted BESS tested in ® Conformed accordance with Section 9.2, except as modified in this section. UL 9540A Checklist and Test Result - Version4 : 01/25/2021 CSA GROUP CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP' ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 19 of 45 Project/ Network: 80084072 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement Comments Figure 9.3 Example of Indoor Wall Mounted BESS Test Arrangement Ceiling 1�m `Y.x r2.•iFY W!FN... X x X X x X x X Ya y l� T$ BESS Wall Ventilation Opening °x X SIDE VIEW X — Denotes typical thermocouple locations, specific positions dependent on installation details The test conducted in fire test room (as per ® Conformed standard NFPA 286), 3.66 x 2.44 x 2.44-m (12 x 8 x 8 -ft) high, with a 0.76 x 2.13-m (2-1/2 x 7 -ft) high opening. UL 9540A Checklist and Test Result - Version4 : 01/25/2021 r CSA GROUP" CSA GROUP Laboratory Test Data - UL 9540A Checklist and Test Result ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 20 of 45 Project/ Network: 80084072 Description: I Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement Comments � , F E� 4 �f The initiating BESS unit positioned on the wall ® Conformed opposite of the door opening, with the center located 1.22-m (4 -ft) above the floor, and halfway between adjacent walls. Target BESS installed on the wall on each side ® Conformed of the initiating BESS, The wall on which the initiating and target ® Conformed BESS units are mounted is instrumented in accordance with Section 9.2. The gas collection methods shall be in ® Conformed accordance with 9.2.. For residential use BESS, the DUT covered ® Conformed with a single layer of cheese cloth ignition indicator. 9.5 Test Method — Outdoor wall mounted units Outdoor wall mounted BESS tested in ® Conformed accordance with Section 9.2, except as modified in this section. x # 61 } UL 9540A Checklist and Test Result - Version4 : 01/25/2021 CSA GROUP CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP"CIP ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y IPage number 21 of 45 Project/ Network: 80084072 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement I Comments Figure 9.4 Example of Outdoor Wall Mounted BESS Test Arrangement Eave . , xXXXX i15 X x Wall BESS �4 t F� X Installation iw� X substrate SIDE VIEW su3476a X — Denotes typical thermocouple locations, specific positions dependent on installation details. If intended for outdoor use only wall mount installations, following measurement are not needed. - the smoke release rate, - the convective and chemical heat release rate and content, - velocity - temperature of the released vent gases Test samples mounted on an instrumented M Conformed wall section that is 3.66-m 12 -ft tall with a UL 9540A Checklist and Test Result - Version4 : 01/25/2021 CSA GROUP CSA Laboratory Test Data - UL 9540A Checklist and Test Result S GROUP` ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 22 of 45 Project / Network: 80084072 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Requirement Comments 0.3-m (1 -ft) wide horizontal soffit (undersurface of the eave shown in Fiaure 9.4). The initiating BESS unit positioned on the D9 Conformed instrumented wall, with its center located 1.22- m (44t) above the floor, and halfway between wall edaes. Target BESS installed on the wall on each side ILI c:ontormed of the initiating BESS, The wall on which the initiating and target ® Conformed BESS units are mounted is instrumented in accordance with Section 9.2. For residential use BESS, the DUT covered DSI Conformed with a single layer of cheese cloth ignition indicator. Non-residential use rooftop or open garage installations BESS tested be in accordance with 9.2. If intended for rooftop and open garage use only installations, folloing measurement are not needed. - the smoke release rate, - the convective and chemical heat release rate and content, - velocity - temperature of the released vent gases Section 9 TABLE: Unit Level Test Sample, No DUT 1 Type of Installation: Indoor Ground Mounted Residential Representative of Other Type of Installation: Outdoor Ground Mounted Residential I pen Circuit Voltage of Initiating BESS BeforeTest(Vdc) 49.8 Open Circuit Voltage of Module 1 with BESS Before Test (Vdc): 49.8 Thermal runaway, initiation Method: Cartridge Heaters UL 9540A Checklist and Test Result - VerSion4 : 01/25/2021 CSA GROUP S�CSA Laboratory Test Data - UL 9540A Checklist and Test Result GROUP" ORIGINAL TEST DATA The results relate only to the items tested. i This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y IPage number 23 of 45 Project / Network: 80084072 Description: I Li -Ion BESS, up to 15.3 kWh, 120/240V Section Requirement Comments - RMM Lj neo e r sY, em ' Power Elechomcs -Y .X�^-�, �2. Location of Initiating module within BESS: B.me Motla1e i zHeat Release Rate UL 9540A Checklist and Test Result - Version4 : 01/25/2021 CSA GROUP'" CSA GROUP Laboratory Test Data - UL 9540A Checklist and Test Result ORIGINAL TEST DATA The results relate only to the items tested. This report shall not be reproduced, except in full, without the approval of CSA Group Testing & Certification Inc. Master Contract: 236698 Model: Powerwall 2 - 3012170 -XX -Y I Page number 24 of 45 Project / Network: 80084072 Description: Li -Ion BESS, up to 15.3 kWh, 120/240V Section" Requirement Comments Heat Release Data 3 0.90 2.5', I 0.80 0.70 2 0.60 v N N N N y 1.5 0.50¢ � v a 0.407 �- 0.30 —Chemcical Heat Release (kW) 'y. 0.20 0.5! - - Convective Heat Release Rate (kW) 0.10 0 .-.. 0.00 0:00:00 0:14:24 0:28:48 0:43:12 0:57:36 1:12:00 1:26:24 1:40:48 1:55:12 2:09:36 2:24:00 Time (H:MM:SS) Observations UL 9540A Checklist and Test Result - Version4 : 01/25/2021