HomeMy WebLinkAboutLA203404 - Approved Plans 19832 Itea AveEXISTINGSNAPNRACKSITE MAP & PV LAYOUTELECTRICAL 1-LINE DIAGRAM ATTACHMENT LAYOUTSYSTEM LABELING DETAILENPHASE RAPID SHUTDOWNINVERTER DATA SHEETSHEET INDEXPROPERTY PLANMODULE DATA SHEETRACKING DATA SHEETATTACHMENT DATA SHEETPV 1.0PV 2.0PV 4.0PV 5.1D 6.0D 7.0D 8.0D 9.0D 10.0D 11.0SYSTEM RATINGEQUIPMENT SUMMARYELECTRICAL INFORMATIONMAIN SERVICE PANEL BUS SIZE:MAIN SERVICE BREAKER SIZE:MOUNTING SYSTEM:BUILDING INFORMATIONCONSTRUCTION TYPE: V-BOCCUPANCY: R3ROOF:Truss 2 x 4 @ 24" O.C.COMP SHINGLEVICINITY MAP (SCALE: NTS)SATELLITE VIEW (SCALE: NTS)GENERAL NOTES1.All electrical materials shall be new and listed by recognizedelectrical testing laboratory Custom made equipment shall have complete test data submittedby the manufacturer attesting to its safety2.Outdoor equipment shall be NEMA 3R rated or equivalent3.All metallic equipment shall be grounded4.Contractor shall obtain electrical permits prior to installation andshall coordinate all inspections, testing commissioning andacceptance with the client, utility co. and city inspectors as needed.5.The electrical contractor shall verify the exact locations of servicepoints and service sizes with the serving utility company andcomply with all utility companies requirements.6.Drawings are diagrammatic only, routing of raceways shall beoption of the contractor unless otherwise noted and shall becoordinated with other trades.7.If the roof material or the roof structure not adequate for PVinstallation, call the engineer of record print to installation. Thecontractor is responsible to verify that the roof is capable ofwithstanding the extra weight.8.If the distances for cable runs are different than shown, thecontractor shall notify the electrical engineer to validate the wiresize. Final drawings will be red-lined and updated as appropriate.9.Whenever a discrepancy in quality of equipment arises on thedrawing or specifications, the contractor shall be responsible forproviding and installing all materials and services required by thestrictest conditions noted on the drawings or in the specificationsto ensure complete compliance and longevity of the operablesystem required by the engineer of record.PHOTOVOLTAIC NOTES:1.Rooftop mounted photovoltaic panels and modules shall be tested,listed and identified by recognized testing laboratory2.Solar system shall not cover any plumbing or mechanical vents3.Modules and support structures shall be grounded unless racking has integrated ground.4.Removal of an interactive inverter or other equipment shall notdisconnect the bonding connection between the groundingelectrode conductor and the photovoltaic source and/or outputcircuit grounded conductors.5.All PV modules and associated equipment and wiring shall beprotected from physical damage.6.Live parts of PV source circuits and PV output circuits over 150v toground shall not be accessible to other than qualified persons while energized.7.Inverter is equipped with integrated DC disconnect, thus providingground fault protection8.All conductors shall be copper and 75 deg rated9.A single conductor shall be permitted to be used to perform themultiple functions of dc grounding, AC grounding and bondingbetween AC and DC systems.10.Non-current carrying metal parts of equipment shall be effectivelybonded together. Bond both ends of raceways.200A200A06/15/2022Property Address:Owner: Matt WeiersProperty Type:Single Family ResidenceDrawn by:New@engineerinc.ioDate: HANWHA 400 WATT MODULESWITH IQ8+ MICROINVERTERS19832 Itea Ave Lakeville, MN 55044CONTRACTORAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comTHE INSTALLATION OF SOLAR ARRAYS ANDPHOTOVOLTAIC POWER SYSTEMS SHALL COMPLY WITHTHE FOLLOWING CODES:·2020 National Electrical Code·2018 International Building Code·2018 International Residential Code·2020 Minnesota Residential Code·2020 Minnesota Building Code·2020 Minnesota Energy Code·2020 Minnesota Accessibility Code·2020 Minnesota State Fire Code·2018 International Fire Code·2018 International Energy Conservation Code·2018 Mechanical CodeAS ADOPTED BY THE STATE OF MINNESOTAALL OTHER ORDINANCE ADOPTED BY THELOCAL GOVERNING AGENCIESGOVERNING CODESINVERTER CERTIFICATIOND 13.0PV 3.1ENPHASE AC COMBINER BOXD 12.0PV INSPECTION CHECKLIST ATTACHMENT DETAILPV 5.2SURGE PROTECTIONWITNESS TEST PROCEDURED 14.0D 15.0Xcel Energy Application #05131659PLACARDPV 3.2DC 18.40 KW STCAC 13.34 KW STC46Date Certified andSigned: 06/15/2022Concept Approval ONLYSubject to Field InspectionInspectorDate2020MN BldgCode06/24/2022dmathews
EMT type ConduitSolar Module(N) Junction BoxJB.................................................................................MSP(E) Main Service Panel200AINDEXAC....................(N) 100A Utility AC(N) MicroinverterNOTE: Conduit in attic shallbe minimum 18 inches from roof sheatingSITE MAP & PVLAYOUTPV 1.0PV SYSTEMAS INDICATEDScale:Project:Drawn by:New@engineerinc.ioProject Name:Property Adress:06/15/2022 Matt Weiers19832 Itea AveLakeville, MN 55044DATE:CONTRACTORECB(N) Enphase Combiner Box....Wolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comEQUIPMENT ELEVATIONNote: 24/ 7 Unescorted keyless access is to beprovided for ALL UTILITY EQUIPMENTNOTE: No clearance issue Distance between all equipments is maximum 10"(E) Main MeterMM........................Fire Setback Line.............SECONDARY INTERCONNECTIONFMT type Conduit.............4646INVERTERINVERTER TYPE: Micro:___ Enphase IQ8PLUSModel # IQ8PLUS-72-2-US(240V)Xcel Energy Application #05131659Xcel Energy Application #05131659Total Roof Area:1416Total Module Area:110071.46% of CoverageECBUtility ACDisconnectMainMeter10"From roofMainServicePanel<10'InsideInsideOutsideOutside
SOLAR MODULES___HANWHA 400 WattModel #Q.PEAK DUO BLK ML-G10+* Roof access is not located in areas that require placement of ground ladders over exterior wall openings (R324.6.1)NOTE:A 36-inchwide pathwayshall be provided to the emergencyescape and rescue opening.Gas18" fire setback18" fire setback18" fire setback18" fire setback18" fire setbackItea Ave
Solar PV Array 119- Hanwha 400 W Modules19 - IQ8+ MicroinvertersPitch: 27 DegOrientation: 90 DegSolar PV Array 29- Hanwha 400 W Modules9 - IQ8+ MicroinvertersPitch: 23 DegOrientation: 90 DegSolar PV Array 39- Hanwha 400 W Modules9 - IQ8+ MicroinvertersPitch: 23 DegOrientation: 270 DegSolar PV Array 49- Hanwha 400 W Modules9 - IQ8+ MicroinvertersPitch: 27 DegOrientation: 270 DegGASMSPMMACECBaaaaaaaaaaaaabbbbbbbbbbbbbcccccccccccdddddddddJB1JB2JB3JB4JB5UTILITY AC DISCONNECT LOCKABLEAND READLY ACCESSIBLE36" fire setbackRoof AccessSCALE:3/32" = 1'-0" 180° 90° 270°0°SWNE
MAIN METERENPHASE Q CABLE(2) #12 AWG PV WIRE(1) #6 AWG EGCFREE IN THE AIRPV 2.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044ELECTRICAL 1-LINE DIAGRAMCONTRACTOREnphasePV MONITORING DEVICEENPHASE IQ COMBINER4120/240V, NEMA 3R(2) #14 AWG THWN/ THWN-210A 2-POLENote: 24/ 7 Unescorted keyless access is to beprovided for ALL UTILITY EQUIPMENT In locations where there is no local Public Authority, the customer is exempt frominspection, and/or the service has been shut off or disconnected for more than 365 days (1 year),the licensed electrician or wireman shall submit a signed and dated Xcel Energy ElectricalInspection Certificate to the Company’s Builders Call Line attesting that the electrical installationhas been completed and installed according to the current National Electrical Code®, the XcelEnergy Standard for Electric Installation and Use, and any other applicable codes that apply beforeelectric service is energized.Design meet National Electric Code(NEC codes)100A FUSED AC DISCONNECT,WITH 70A FUSESUTILITY AC DISCONNECT VISIBLE-OPENLOCKABLE, READILY ACCESSIBLENEMA3R120 / 240V 1P 3WINSTALL (4)20A PV2-POLE C/BWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.com(3) #4 AWG THWN/THWN-2(1) #6 AWG GND1" EMT, 2 FEETEXISTING______ MAINSERVICEPANEL120/240V,1P, 3WGEC(E) GROUNDINGELECTRODE SYSTEM200ANON CENTER _____MAIN C/BNOTE: Service Panel does not contain center fed Main Breaker:SECONDARY INTERCONNECTIONREFERENCE POINT OF APPLICABILITY (8) #10 AWG THWN/THWN-2 (1) #8 AWG GND 3/4'' EMT, 7 FEETAtticWall (8) #10 AWG THWN/THWN-2 (1) #8 AWG GND 3/4'' FMT, 20 FEETSurge ProtectionMNSPD-300-AC120/240V,1P, 3WXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:1-PHASE MICRO-INVERTER UL1741HANWHA 400 WATT MODULES4646ENPHASE IQ8PLUS MICROINVERTERSSYSTEM RATING AND DER POWER OUTPUTINVERTER:ENPHASE IQ8PLUS-72-2-USINVERTER MAXIMUM CONTINUOUS OUTPUT:290VASYSTEM POWER OUTPUT:ENPHASE IQ8PLUS MICROINVERTERS1 PHASE 290VAMAXIMUM OUTPUT CURRENT 1.21AAC PORT BACKFEED CURRENT 0ADC SHORT CIRCUIT CURRENT 15ADC 18.40 KW STCAC 13.34 KW STCDC 18.40 KW STCAC 13.34 KW STCXcel Energy Application #0513165955.66A46x 290 =14.50200A1BRANCHCIRCUIT-D2
NOTE: AC DISCONNECT VISIBLE AND LOCKABLE55.66ANo loads or energy storage systems shall beconnected on the DER side of the productionmeter4.84A13.31A1BRANCHCIRCUIT-C2 J BOX4NEMA3R(NEW)GECAdd 2nd Ground rod andtie it to the existing ground rod.(3) #4AWG THWN/THWN-21" EMT, 2 FEET(1) #6 AWG GNDLine Side TapJ BOX3NEMA3R41BRANCHCIRCUIT-D2 6.05AJ BOX5NEMA3R59.68A1BRANCHCIRCUIT-B286.05A1BRANCHCIRCUIT-B2 J BOX2NEMA3R4.84A1BRANCHCIRCUIT-A210.89A1BRANCHCIRCUIT-A2 J BOX1NEMA3R91154
PV 3.1PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044PV ARRAYJ BOXPV SUB-PANELACDISCONNECTMAIN SERVICEPANELMETER122221516207124Note: LABELS SHALL COMPLY WITH NEC 690“Labels shall be weatherproof, durable and permanently mounted”Photovoltaic Power SourceLABEL 1CAUTION: SOLAR CIRCUITLABEL 2WARNINGELECTRIC SHOCK HAZARDTHE DC CONDUCTORS OF THISPHOTOVOLTAIC SYSTEM AREUNDERGROUND AND MAY BE ENERGIZEDLABEL 3WARNINGELECTRIC SHOCK HAZARDIF GROUND FAULT IS INDICATEDNORMALLY GROUNDED CONDUCTORSMAY BE UNDERGROUND AND ENERGIZEDLABEL 4WARNINGELECTRIC SHOCK HAZARDDO NOT TOUCH TERMINALSTERMINALS ON BOTH LINE AND LOADSIDES MAY BE ENERGIZED IN THE OPENPOSITIONLABEL 5WARNINGELECTRIC SHOCK HAZARDDO NOT TOUCH TERMINALSTERMINALS ON BOTH LINE AND LOADSIDES MAY BE ENERGIZED IN THE OPENPOSITIONDC VOLTAGE IS ALWAYS PRESENTWHEN SOLAR MODULESARE EXPOSED TO SUNLIGHTLABEL 6WARNINGLABEL 7TURN OF PHOTOVOLTAICAC DISCONNECT PRIOR TOWORKING INSIDE PANELDO NOT DISCONNECTUNDER LOADLABEL 8MAIN PV SYSTEMDISCONNECTLABEL 9MAIN PV SYSTEMAC DISCONNECTLABEL 10LABEL 11CAUTIONLABEL 12SOLAR ELECTRIC SYSTEMCONNECTEDWARNING-LABEL 13 DUAL POWER SOURCESECOND SOURCE IS PV SYSTEMCAUTIONLABEL 14PHOTOVOLTAIC SYSTEM CIRCUITIS BACKFEDLABEL 15PHOTOVOLTAIC AC DISCONNECTMAXIMUM AC OPERATING CURRENTMAXIMUM AC OPERATING CURRENTPHOTOVOLTAICLABEL 16UTILITY AC DISCONNECTPHOTOVOLTAICLABEL 17DC DISCONNECTNOMINAL OPERATING AC VOLTAGENOMINAL OPERATING AC FREQUANCYMAXIMUM AC POWERMAXIMUM AC CURRENTMAX OCERCURRENT DEVICE RATINGFOR AC MODULE PROTECTIONLABEL 18LABEL 19PV SYSTEM DC DISCONNECTOPERATING CURRENTOPERATING VOLTAGEMAXIMUM SYSTEM VOLTAGESHORT CIRCUIT CURRENTRATED MAX POWER-FONT CURRENTRATED MAX POWER-FONT VOLTAGEMAXIMUM SYSTEM VOLTAGESHORT CIRCUIT CURRENTMAX RATED OUTPUT CURRENT OFTHE CHARGE CONTROLLER IF INSTALLEDLABEL 20***ALL LABELS = RED THERMOPLASTIC/REFLECTIVE , Permanently mounted240VSOLAR DISCONNECT20CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659SYSTEM LABELING DETAILDrawn by:New@engineerinc.io06/15/2022DATE:55.66ASOLAR PV SYSTEM EQUIPPEDWITH RAPID SHUTDOWNTURN RAPID SHUTDOWNSWITCH TO THE"OFF" POSITION TOSHUT DOWN PV SYSTEMAND REDUCESHOCK HAZARDIN THE ARRAYSOLAR ELECTRICPV PANELS
PLACARDPV 3.2PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659CAUTIONPOWER TO THIS BUILDING IS ALSO SUPPLIEDFROM THE FOLLOWING SOURCES WITHDISCONNECTS LOCATED AS SHOWN:SERVICE 1 OF 2CAUTIONPOWER TO THIS BUILDING IS ALSO SUPPLIEDFROM THE FOLLOWING SOURCES WITHDISCONNECTS LOCATED AS SHOWN:SERVICE 2 OF 2NWESNWESDrawn by:New@engineerinc.io06/15/2022DATE:19832 Itea AveLakeville, MN 5504419832 Itea AveLakeville, MN 55044SERVICE POINT &UTILITY METERINGENPHASE COMBINER BOXPV SYSTEM DISCONNECTFOR UTILITY OPERATIONSOLAR PV ARRAYSERVICE POINT &UTILITY METERINGENPHASE COMBINER BOXPV SYSTEM DISCONNECTFOR UTILITY OPERATIONSOLAR PV ARRAY
PROPERTY PLANLEGENDMSPMain Service Panel................PV 4.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTOREnphase Combiner BoxECB..........Wolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comMMMain Meter............................Xcel Energy Application #05131659Note: 24/ 7 Unescorted keyless access is to beprovided for ALL UTILITY EQUIPMENTDrawn by:New@engineerinc.io06/15/2022DATE:Xcel Energy Application #05131659 Utility AC DisconnectAC .............DrivewayItea Ave
103'-10"85'-10"103'-10"85'-10"6'-11"13'-7"10'-6"41'-1"PROPERTY LINEGASMSPMMACECBSCALE:3/32" = 1'-0" 180° 90° 270°0°SWNEDate Certified andSigned: 06/15/2022
ATTACHMENTLAYOUTDESIGN CRITERIAModules:Max Distributed Load: 3 PSFPOINT LOAD CALCULATION PER ARRAYModule Weight (lbs)# Of Modules48.5Total Module Weight (lbs)Rack Weight (lbs)MicroInverters Weight (lbs)Total System Weight (lbs)# Of StandoffsMax Span Between Standoffs (in)Loading Per Standoff (lbs)Total Area (sq.ft.)Loading (PSF)2231446.2109.482786.68984828.4310122.75RAIL ATTACHMENTMODULES ON ROOFTruss 2 x 4 @ 24" O.C.4646PV 5.1PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.com1 Layer of .Plywood & Building FeltSolar Module6"AttachmentMODULES ON ROOFTruss 2 x 4 @ 24" O.C.COMP SHINGLEPrior to the commencement of work, the contractor shall verify the existing roof and framingconditions. Notify New@engineerinc.io of any Discrepancies prior to starting construction.Prior to the commencement of work, the contractor shall inspect framing for any damagesuch as water damage, cracked framing, etc. and These Plans are stamped for structuralcode compliance of the roof framing supporting the proposed PV installation reference only.These plans are not stamped for water leakage. PV modules, racking, and attachmentcomponents must follow manufacturer guidelines and requirements. Attachments to beinstalled in a staggered orientation to properly distribute loads.1.86"3.05"0.25"Ø2.24"2.58"1"0.17"3.20"1.37"0.38"0.30"1.08"2.78"1.78"1.50"1.99"1.21"R 1.12"Ø0.33"R 0.82"12345SNAPNRACK, SPEEDSEAL FOOT, BASE, SEALING, SILVER/BLACKBOLT, FLANGE, SERRATED, 5/16IN-18 X 2IN, SSSNAPNRACK, RL UNIVERSAL, MOUNT SPRING, SSSNAPNRACK, ULTRA RAIL MOUNT THRU PRC, CLEAR/BLACKSNAPNRACK, ULTRA RAIL MOUNT TAPPED PRC, CLEAR/BLACK12345DESCRIPTIONITEMQTI11111MATERIALS:DESIGN LOAD (LBS):ULTIMATE LOAD (LBS):TORQUE SPECIFICATION:CERTIFICATION:WEIGHT (LBS):DIE CAST A380 ALUMINUM, 6000 SERIES ALUMINUM, STAINESS STEEL802 UP, 1333 DOWN, 357 SIDE2118 UP, 4006 DOWN, 1331 SIDE12 LB-FTUL 2703, FILE E359313; WIND-DRIVEN RAIN TEST FROM SUBJECT UL 25820.45OPTIONS:CLEAR/BLACKPARTS LISTSNAPNRACK, ULTRA RAIL SPEEDSEAL TM FOOTXcel Energy Application #05131659Note: 24/ 7 Unescorted keyless access is to beprovided for ALL UTILITY EQUIPMENTDrawn by:New@engineerinc.io06/15/2022DATE:Xcel Energy Application #0513165915'-6"13'Date Certified andSigned: 06/15/2022
PV 5.2PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044ATTACHMENT DETAILCONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
INVERTERDATA SHEETD 6.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
ENPHASE RAPIDSHUTDOWN,COMPATIBILITY WITH PVD 7.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
MODULEDATA SHEETD 8.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
RACKINGDATA SHEETD 9.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
ATTACHMENTDATA SHEETD 10.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
D 11.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORENPHASEAC COMBINER BOXDATASHEETWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
D 12.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORINVERTERCERTIFICATIONWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
D 13.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044CONTRACTORSURGE PROTECTIONWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
D 14.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044WITNESS TESTPROCEDURECONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
D 15.0PV SYSTEMAS INDICATEDScale:Project:Project Name:Property Adress: Matt Weiers19832 Itea AveLakeville, MN 55044PV INSPECTIONCHECKLISTCONTRACTORWolf RIver ElectircAddress:101 Isanti ParkwayNE, Isanti, MN 55040Phone number: (763) 229-6662E-mail: contact@wolfriverelectric.comWolf RIver ElectricLakeville, MN 5504419832 Itea AveXcel Energy Application #05131659Drawn by:New@engineerinc.io06/15/2022DATE:
Structural Engineering Letter
Date: 06/15/2022
Project Name: Matt Weiers
Project Address: 19832 Itea Ave , Lakeville, MN, Lakeville, MN 55044
Contractor : Wolf River Electric
Contractor Address : 101 Isanti Parkway NE, Isanti, MN 55040
Attn : To Whom It May Concern
A Field observation of the condition of the existing framing system was performed by an audit team from
Wolf River Electric. From the Field observation of the property, the existing roof structure observed as
follows:
Existing roof is supported by 2 x 4 @ 24" rafters at the solar array. The rafters are sloped at
approximately 27 degree and have maximum projected horizontal span of 7 feet in between
load bearing supports.
Design Criteria
Applicable codes: 2020 Minnesota Building
Code (2018 IBC) ASCE 7-16
Ground Snow Load: 50 psf
Roof Dead Load: 20 psf
Wind speed: 125 mph
Risk Category: II
Date Certified and
Signed: 06/15/2022
I certify that the capacity of the structural roof framing that directly supports the additional gravity loading
due to the solar panel supports and modules had been reviewed and determined to meet or exceed the
requirements in accordance with the Design Criteria.
If you have any questions or concerns please contact us,
Engineerinc.io,
303 N Glenoaks Blvd Suite 200
Burbank, CA 91502
(747) 333 - 5991
new@engineerinc.io
Date: 06/15/2022
Job Number: 7862
Prepared for : Wolf River Electric, 101 Isanti Parkway NE, Isanti, MN 55040
Project.: Matt Weiers , 19832 Itea Ave , Lakeville, MN, Lakeville, MN 55044
The following calculations are for the structural engineering design of the photovoltaic panels and are
valid only for the structural info referenced in the stamped plan set. The verification of such info is the
responsibility of others. After review, I certify that the roof structure has sufficient structural capacity for
the applied PV loads. All PV mounting equipment shall be designed and installed per manufacturer's
approved installation specifications.
Engineerinc.io
303 N Glenoaks Blvd Suite 200
Burbank, CA 91502
(747) 333 - 5991
new@engineerinc.io
Date Certified and
Signed: 06/15/2022
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
Solar Module Details
Module Type HANWHA
Module Quantity 46
Module Model Number 400 WATT
Design Criteria
Code: 2020 Minnesota Building Code (2018 IBC) ASCE 7-16
Live Load (psf)20
Ult Wind Speed (mph)125
Exposure Cat C
Ground Snow (psf)50
Structure Geometry
Eave Height, he (ft)15 to 20ft
Pitch of main roof (deg)27
Building Length, L (ft)65
Building Width, B (ft)40
Roof Area (Module Area) ft2 2600.00
Standoff(i.e., Roof Mount) Spacing Feet
NOTE: attachments should be installed in a staggered configuratiion to properly destributor loading.
Roof Properties
Roof Geometry type Gable Roof
Roof Type Truss
Roof Pitch (deg)27
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
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 C/C. Spacing (in.)24
Purlin
Section Thickness, b (in.)2
Section Depth, d (in.)4
Rafter
Section Thickness, b (in.)2
Section Depth, d (in.)4
Maximum Rafter Span (ft)7
Factors
Cd(wind)1.60
Cd(Snow)1.60
CLS 1.15
CM 1
Ct 1
CL 0.75
CF 1.5
Cfu 1
Cv 1
Cr 1
M allowable_wind 413.44
M allowable_snow 297.16
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
Dead Load(psf)
Comp Shingles 3.00 psf
1/2" OSB Board 2.00 psf
Insulation 2.00 psf
Total Roof 1DL 7 psf
No. 2, Douglas Fir-Larch 31.00 lb/ft3
Solar Panel DL 3.00 psf
Roof 1
Roof_Dist_DL 7.00 psf
M_Roof_Dist_DL 2699.04
Def_Roof_Dist_DL 1.61
PV_uni_Dist_DL 3.00 psf
M_PV_uni_Dist_DL 10.54
Def_PV_uni_Dist_DL 0.01
Total_Uni_DL 11.00 psf
M_Total_DL 2709.58
Def_Total_DL 1.61
Snow Load(psf)
Ground Snow Load, pg 50
Importance Factor, Ic 1
Thermal Factor, Ct 1
Exposure Factor, Ce 1
Flat roof snow, pF 50
Slope Factor, Cs 1
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
Sloped Row Snow, ps 50
Uni_Dist_S 50.00
M_uni_Dist_s 306.25
Def_uni_Dist_S 0.18
Wind Load
Ultimate Wind Speed 125
Directionality Factor,kd 0.85
Topographic factor 1.00
Velocity pressure exposure factor,kz 0.88
Ground Elevation Factor,ke -1.75
Side Wall Width 40
Median Roof Height -113.45
Velocity pressure,qz 29.92
External Pressure Up,GCp_1 -0.2
External Pressure Up,GCp_2 -0.6
External Pressure Up,GCp_3 -0.9
External Pressure Down,GCp 0.3
Design Pressure Up,p_1 -5.00
Design Pressure Up,p_2 -15.01
Design Pressure Up,p_3 -22.51
Design Pressure Up,p 7.50
Uni_Dist_W_up -22.51
M_uni_Dist_W_up -137.87
Def_uni_Dist_W_up -0.08
Uni_Dist_W_down 7.50
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
M_uni_Dist_W_down 45.94
Def_uni_Dist_W_down 0.03
Lag Screw Uplift Check (ASD)
5/16" Lag Screw Withdrawl value 205.00 lb/in
Lag Screw Penetration 2.50 in
Roof1 0.6D+0.6W(up z1)1847.772 > 512.5
Roof1 0.6D+0.6W(up z2)1841.766 > 512.5
Framing Check (ASD):
Roof1 uni 1.0D+0.6W 2737.14 > 413.44
Lag Screw Penetration 2959.94 > 413.44
Roof1 0.6D+0.6W(up z1)3015.83 > 297.16
Roof1 0.6D+0.6W(up z2)1543.03 > 413.44
Seismic Check:
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)2240.00 ft2
Total Wall W 26880 lbs
Total Roof DL 7.50 psf
Total Roof Area (Approx)1077.30 ft2
Total Roof W 8079.75 lbs
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io
OK
PV Panel W 3.00 psf
Area of panel 920.00 ft2
Total Roof W 2309.52 lbs
% increase=(Wadditional)/Wexisting 7.04%
The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no furtherseismic 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.
303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 | (747)333-5991 | new@engineerinc.io