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HomeMy WebLinkAboutLA223694 - APPROVED-Margery Webb - CAD_3-SR_StampedRevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressPV 0.00001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3COVER SHEETPHOTOVOLTAIC SYSTEM SPECIFICATIONS:PHOTOVOLTAIC ROOF MOUNT SYSTEM18289 ITALY AVE, LAKEVILLE, MN 55044SHEET INDEX:GOVERNING CODESALL WORK SHALL CONFORM TO THE FOLLOWING CODESa. 2023 NATIONAL ELECTRICAL CODEb. 2020 MINNESOTA RESIDENTIAL CODEc. 2020 MINNESOTA BUILDING CODEd.e. 2020 MINNESOTA ACCESSIBILITY CODEf. 2020 MINNESOTA MECHANICAL AND FUEL GAS CODEg. 2020 MINNESOTA PLUMBING CODEh. 2020 MINNESOTA STATE FIRE CODEi. ANY OTHER LOCAL AMENDMENTS GENERAL STRUCTURAL NOTES:a. THE SOLAR PANELS ARE TO BE MOUNTED TO THE ROOF FRAMING USINGTHE PEGASUS SYSTEM. THE MOUNTING FEET ARE TO BE SPACED ASSHOWN IN THE DETAILS, AND MUST BE STAGGERED TO ADJACENT FRAMINGMEMBERS TO SPREAD OUT THE ADDITIONAL LOAD.b. UNLESS NOTED OTHERWISE, MOUNTING ANCHORS SHALL BE 516" LAGSCREWS WITH A MINIMUM OF 2 12" PENETRATION INTO ROOF FRAMING.c. THE PROPOSED PV SYSTEM ADDS 3.0 psf TO THE ROOF FRAMING SYSTEM.1. ROOF LIVE LOAD = 20 psf TYPICAL, 0 psf UNDER NEW PV SYSTEM.2. GROUND SNOW LOAD = 50 psf3. WIND SPEED = 109 mph4. EXPOSURE CATEGORY = CSYSTEM SIZE: 12.325 kW DC11.136 kW ACMODULE TYPE & AMOUNT: (29)SUNPOWER SPR-M425-H-AC (425W)MODULE DIMENSIONS:(L/W/H) 73.7"/40.6"/1.57"INVERTER:(29)ENPHASE IQ7HS-66-M-US (SPWR-A5)INTERCONNECTION METHOD: SUPPLY SIDE TAPSCALE: NTS2VICINITY MAPPV 0.0SCALE: NTS1SATELLITE VIEWPV 0.044.684513, -93.26479144.684513, -93.264791GENERAL ELECTRIC NOTES:1. ALL COMPONENTS ARE UL LISTED AND CEC CERTIFIED, WHERE WARRANTED.2. THE SOLAR PV SYSTEM WILL BE INSTALLED IN ACCORDANCE WITH ARTICLE 690 OF THE NEC2023.3. THE UTILITY INTERCONNECTION APPLICATION MUST BE APPROVED AND PV SYSTEM INSPECTEDPRIOR TO PARALLEL OPERATION.4. ALL CONDUCTORS OF A CIRCUIT, INCLUDING THE EGC, MUST BE INSTALLED IN THE SAMERACEWAY, OR CABLE, OR OTHERWISE RUN WITH THE PV ARRAY CIRCUIT CONDUCTORS WHENTHEY LEAVE THE VICINITY OF THE PV ARRAY.5. WHERE METALLIC CONDUIT CONTAINING DC CONDUCTORS IS USED INSIDE THE BUILDING, ITSHALL BE IDENTIFIED AS "CAUTION: SOLAR CIRCUIT" EVERY 10FT.6. HEIGHT OF THE AC DISCONNECT SHALL NOT EXCEED 6'-7" PER NEC CODE 240.24.7. A GROUNDING ELECTRODE SYSTEM IN ACCORDANCE WITH CEC 690.47 AND 250.50 THROUGH 60AND 250-166 SHALL BE PROVIDED. PER NEC GROUNDING ELECTRODE SYSTEM OF EXISTINGBUILDING MAY BE USED AND BONDED TO THE SERVICE ENTRANCE. IF EXISTING SYSTEM ISINACCESSIBLE OR INADEQUATE A SUPPLEMENTAL GROUNDING ELECTRODE WILL BE USED ATTHE INVERTER LOCATION CONSISTING OF A UL LISTED 8 FT. GROUND ROD WITH ACORN CLAMP.GROUNDING ELECTRODE CONDUCTORS SHALL BE NO LESS THAN #8 AWG AND NO LARGERTHAN #6 AWG COPPER AND BONDED TO THE EXISTING GROUNDING ELECTRODE TO PROVIDEFOR A COMPLETE SYSTEM.8. PHOTOVOLTAIC MODULES ARE TO BE CONSIDERED NON-COMBUSTIBLE.9. PHOTOVOLTAIC INSTALLATION WILL NOT OBSTRUCT ANY PLUMBING. MECHANICAL, OR BUILDINGROOF VENTS.10. ALL WIRING MUST BE PROPERLY SUPPORTED BY DEVICES OR MECHANICAL MEANS DESIGNEDAND LISTED FOR SUCH USE. WIRING MUST BE PERMANENTLY AND COMPLETELY HELD OFF THEROOF SURFACE.11. ALL SINAGE TO BE PLACED IN ACCORDANCE WITH THE LOCAL BUILDING CODE. IF EXPOSED TOSUNLIGHT, IT SHALL BE UV RESISTANT. ALL PLAQUES AND SINAGE WILL BE INSTALLED ASREQUIRED BY THE NEC AND AHJ.12. AS SPECIFIED BY THE AHJ, EQUIPMENT USED IN UNGROUNDED SYSTEMS LABELED ACCORDINGTO NEC 690.35(F).13. INVERTER(S) USED IN UNGROUNDED SYSTEM SHALL BE LISTED FOR THIS USE [NEC 690.35(G)].14. THE INSTALLATION OF EQUIPMENT AND ALL ASSOCIATED WIRING AND INTERCONNECTIONSHALL BE PERFORMED ONLY BY QUALIFIED PERSONS [NEC 690.4(C)]15. ALL OUTDOOR EQUIPMENT SHALL BE NEMA 3R RATED (OR BETTER), INCLUDING ALL ROOFMOUNTED TRANSITION BOXES AND SWITCHES.16. ALL EQUIPMENT SHALL BE PROPERLY GROUNDED AND BONDED IN ACCORDANCE WITH NECARTICLE 250.17. SYSTEM GROUNDING SHALL BE IN ACCORDANCE WITH NEC 690.41.18. PV SYSTEM CIRCUITS INSTALLED ON OR IN BUILDINGS SHALL INCLUDE A RAPID SHUTDOWNFUNCTION IN ACCORDANCE WITH NEC 690.1219. DISCONNECTING MEANS SHALL BE LOCATED IN A VISIBLE, READILY ACCESSIBLE LOCATIONWITHIN THE PV SYSTEM EQUIPMENT OR A MAXIMUM OF 10 FEET AWAY FROM THE SYSTEM [NEC690.13(A)]20. ALL WIRING METHODS SHALL BE IN ACCORDANCE WITH NEC 690.3121. WORK CLEARANCES AROUND ELECTRICAL EQUIPMENT WILL BE MAINTAINED PER NEC110.26(A)(1), 110.26(A)(2) AND 110.26(A)(3).22. ROOFTOP MOUNTED PHOTOVOLTAIC PANELS AND MODULES SHALL BE TESTED, LISTED &IDENTIFIED IN ACCORDANCE WITH UL170323. ELECTRICAL CONTRACTOR TO PROVIDE CONDUIT EXPANSION JOINTS AND ANCHOR CONDUITRUNS AS REQUIRED PER NEC.PV 0.0: COVER SHEETPV 0.1: PLOT PLANPV 1.0: SITE PLANPV 1.1: ATTACHMENT & STRING LAYOUTPV 1.2: EQUIPMENT ELEVATIONS 1.0: MOUNT DETAILSE 1.1: 3-LINE DIAGRAME 1.2: WIRE CALCULATIONE 1.3: WARNING LABELSE 1.4: PLACARDD 1.1+: EQUIPMENT SPEC SHEET29 MODULES-ROOF MOUNTED - 12.325 kW DC, 11.136 kW ACAUTHORITIES HAVING JURISDICTION:BUILDING: CITY OF LAKEVILLEZONING: CITY OF LAKEVILLEUTILITY: DAKOTA ELECTRIC ASSOCIATIONUTILITY ACCOUNT NUMBER: N/AUTILITY METER NUMBER: 1ND921325782024 MINNESOTA RESIDENTIAL ENERGY CODESigned: 05/10/2024Professional Engineer I hereby certify that this plan, specification , or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Signature : Typed or Printed Name: EUGENE MUNYANZIZADate: License Number: 61220Concept Approval ONLYSubject to Field InspectionInspectorDate2015MN BldgCode05/14/2024jnuetzman 189'-2"52'-11"48'-3" 6'-5"300'-1"117'-1"280'-6"97'-3" 3 1 ' - 1 0 "NRevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressPV 0.10001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3PLOT PLANSCALE: 3/64" = 1'-0"1PLOT PLANPV 0.1LOT: 0.79 ACRESPARCEL: 227300000231PROPERTY LINEDRIVEWAYSYSTEM LEGENDROOF ACCESS POINTROOF #1(27)SUNPOWER SPR-M425-H-AC (425W)SLOPE: 20°AZIM.: 180°EXISTING UTILITY METER ROOF ACCESS POINTROOF ACCESS POINTS SHALL BE LOCATED IN AREASTHAT DO NOT REQUIRE THE PLACEMENT OF GROUNDLADDERS OVER OPENINGS SUCH AS WINDOWS ORDOORS, AND LOCATED AT STRONG POINTS OF BUILDINGCONSTRUCTION IN LOCATIONS WHERE THE ACCESSPOINT DOES NOT CONFLICT WITH OVERHEADOBSTRUCTIONS SUCH AS TREE LIMBS, WIRES, OR SIGNS.FRONT OF HOUSE 18289 ITALY AVENO FENCES OR GATES SURROUND THE PROPERTYMEXISTING INTERIOR MAINSERVICE PANELNOTE :1. 24/ 7 UNESCORTED KEYLESSACCESS IS TO BE PROVIDED FORALL UTILITY EQUIPMENT.2. AC DISCONNECT SHOULD BELOCATED TOGETHER IN AREADILY ACCESSIBLE LOCATIONROOF #2(02)SUNPOWER SPR-M425-H-AC (425W)SLOPE: 14°AZIM.: 180°PROPERTY LINEPROPERTY LINE PROPERTY LINEPROPERTY LINEGARAGEDRIVEWAYMAIN HOMESHEDTREES Signed: 05/10/2024Professional Engineer I hereby certify that this plan, specification , or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Signature : Typed or Printed Name: EUGENE MUNYANZIZADate: License Number: 61220 NRevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressPV 1.00001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3SITE PLAN ROOF ACCESS POINTROOF ACCESS POINTS SHALL BE LOCATED IN AREASTHAT DO NOT REQUIRE THE PLACEMENT OF GROUNDLADDERS OVER OPENINGS SUCH AS WINDOWS ORDOORS, AND LOCATED AT STRONG POINTS OF BUILDINGCONSTRUCTION IN LOCATIONS WHERE THE ACCESSPOINT DOES NOT CONFLICT WITH OVERHEADOBSTRUCTIONS SUCH AS TREE LIMBS, WIRES, OR SIGNS.SCALE: 1/8" = 1'-0"1SITE PLANPV 1.0ROOF SECTIONSMODULE - 02SLOPE - 14°AZIMUTH - 180°MATERIAL - COMP. SHINGLETRUSS SIZE & SPACING - 2"X4" @ 24" O.C.MODULE - 27SLOPE - 20°AZIMUTH - 180°MATERIAL - COMP. SHINGLETRUSS SIZE & SPACING - 2"X4" @ 24" O.C.ROOF #01ROOF #02ROOF FIRE SUPPRESSION SPRINKLERSYSTEM: NOTOTAL ROOF AREA: 2531ft2TOTAL MODULE AREA: 603ft2TOTAL AREA COVERED: 23.81%SYSTEM LEGENDCNEW DEDICATED PV SYSTEM COMBINERPANEL.29 NEW SUNPOWER SPR-M425-H-AC(425W) MODULESNEW 29 - ENPHASE IQ7HS-66-M-US(SPWR-A5) INVERTERS, MOUNTED ONTHE BACK OF EACH MODULE. FIRE PATHWAY= ROOF OBSTRUCTIONSACNEW UTILITY AC DISCONNECT SWITCH.= ATTIC RUN CONDUIT= ATTIC RUN CONDUIT JUNCTION BOXPVS6NEW SUNPOWER PVS6 MONITORING SYSTEM.18289 ITALY AVE FRONT OF HOUSE NOTE :1. 24/ 7 UNESCORTED KEYLESS ACCESS IS TO BE PROVIDEDFOR ALL UTILITY EQUIPMENT.2. AC DISCONNECT SHOULD BE LOCATED TOGETHER IN AREADILY ACCESSIBLE LOCATIONEXISTING EXTERIOR UTILITY METERNOTE:ATTIC RUN CONDUIT SHALL BE MINIMUM18 INCHES FROM ROOF SHEATING.EXISTING INTERIOR MAIN SERVICE PANEL.MACCPVS6M ROOF ACCESS POINTPPNEW PV PRODUCTION METER18" FIRE SETBACK 18" FIRE SETBACK18" FIRE SETBACK18" FIRE SETBACK18" FIRE SETBACK18" FIRE SETBACK36" FIRE SETBACK36" FIRE SETBACK 36" FIRE SETBACK36" FIRE SETBACK ROOF #01ROOF #02Signed: 05/10/2024Professional Engineer I hereby certify that this plan, specification , or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Signature : Typed or Printed Name: EUGENE MUNYANZIZADate: License Number: 61220 NRevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressPV 1.10001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3ATTACHMENT &STRING LAYOUTSYSTEM LEGENDSCALE: 1/8" = 1'-0"1ATTACHMENT AND STRING LAYOUTPV 1.1= ATTACHMENT POINTS(99 Nos)= TRUSS# MODULE - 10CIRCUIT #01# MODULE - 09CIRCUIT #03# MODULE - 10CIRCUIT #02CIRCUIT(S)= RAIL SYSTEMNOTE: THE MAXIMUM CANTILEVER OF THE RAILSHALL BE 1/3 OF THE ATTACHMENT SPACING.MODULE, ARRAY & ATTACHMENT POINT WEIGHTQuantityLbs./UnitLbs./Qty.Module29 48 1392.00Mount Blk99 4.50 445.50Coupling Blk31 4.00 124.00Microinverters29 2.38 69.02Flashing99 1.00 99.00Slidecomp99 1.00 99.00Clip SS291.00 29.00Total Point Attachment Load per Standoff22.80Total System Weight (LBS.)2257.52Attachment Point Weight (LBS.) Per Sq.Ft.System Weight / Array Area3.75ARRAY AREAModule AreaModule Dim (73.7" x 40.6")20.78 SQ. FT.Area of Array602.60 SQ. FT.Roof Area2531 SQ. FT.Roof Coverage (in percentage)Roof Area/Array Area23.81%2'-0"4'-0"Signed: 05/10/2024Professional Engineer I hereby certify that this plan, specification , or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Signature : Typed or Printed Name: EUGENE MUNYANZIZADate: License Number: 61220 RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressPV 1.20001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3SCALE: NTS1EQUIPMENT ELEVATIONPV 1.2EXTERIORUTILITY METER#1ND92132578.DEDICATED PV SYSTEMCOMBINER PANEL.SUNPOWER PVS6MONITORING SYSTEM.UTILITY AC DISCONNECT SWITCH.FROM PV ARRAYOVERHEAD SERVICEMAIN SERVICE PANEL.INTERIORTO MAIN SERVICE PANEL.PV PRODUCTION METERSUB-PANEL 2ATTACHMENT DETAIL (enlarged view)S 1.0SCALE: NTS1ATTACHMENT DETAILS 1.0SCALE: NTSPV MODULES2"X4 " TRUSS @ 24" OCMAXIMUM HEIGHT 6" FROM TOPOF THE ROOF TO TOP OF PANELSEE (2/S1.0) FORENLARGED VIEWPV MODULETOP BOLTGROUNDING & END/MID CLAMP2"X4" TRUSS @ 24" OCFLASHING(E) COMP SHINGLE/ROLLED COMP ROOF(E) COMP SHINGLE/ROLLED COMP ROOF(1) 5/16" SS LAG BOLT WITH MIN 212"THREAD EMBEDMENT, SEALEDPENETRATION INTO TRUSS.SUNPOWER INVISIMOUNT RAILPEGASUS L-FOOTRevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressS 1.00001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3MOUNT DETAIL GENERAL STRUCTURAL NOTES:a. THE SOLAR PANELS ARE TO BE MOUNTED TO THE ROOF FRAMING USINGTHE PEGASUS SYSTEM. THE MOUNTING FEET ARE TO BE SPACED ASSHOWN IN THE DETAILS, AND MUST BE STAGGERED TO ADJACENT FRAMINGMEMBERS TO SPREAD OUT THE ADDITIONAL LOAD.b. UNLESS NOTED OTHERWISE, MOUNTING ANCHORS SHALL BE 516" LAGSCREWS WITH A MINIMUM OF 2 12" PENETRATION INTO ROOF FRAMING.c. THE PROPOSED PV SYSTEM ADDS 3.0 psf TO THE ROOF FRAMING SYSTEM.1. ROOF LIVE LOAD = 20 psf TYPICAL, 0 psf UNDER NEW PV SYSTEM.2. GROUND SNOW LOAD = 50 psf3. WIND SPEED = 109 mph4. EXPOSURE CATEGORY = CSigned: 05/10/2024Professional Engineer I hereby certify that this plan, specification , or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Signature : Typed or Printed Name: EUGENE MUNYANZIZADate: License Number: 61220 (NEW) 125A PV SYSTEMCOMBINER PANEL,240V, NEMA 3R, 1 PHASEREFERENCE POINT OFAPPLICABILITY (RPA)L1L2NGGL1L1L2L2N20A20AG2L1L1L2L210 MICRO-INVERTERS IN BRANCH CIRCUIT #110 MICRO-INVERTERS IN BRANCH CIRCUIT #213(NEW) JUNCTION BOX600V, NEMA 4 UL LISTEDTERMINATOR CAP ON LAST CABLECONNECTOR Q-CABLE (TYP)INVERTER: ENPHASE IQ7HS-66-M-US(SPWR-A5)ML1 N L2L1NL2LINELOAD4G(NEW) 200A PVPRODUCTIONMETER SOCKET.MILBANK U4801-XL-5T91-PHASE, 3-WIRE120/240V(NEW) UTILITY ACDISCONNECT SWITCH,240V/60A, FUSED,NEMA3RGNNL1MBI-DIRECTIONAL UTILITYMETER 1-PHASE, 3-W,120V/240VTO UTILITY GRIDL2200AEXISTING 240V/200ABUSBAR RATING, SERVICEPANEL, SINGLE PHASE,WITH A 200A MAINDISCONNECTGROUNDINGELECTRODE SYSTEM429 NEW SUNPOWER SPR-M425-H-AC (425W) MODULESNEW 29 - ENPHASE IQ7HS-66-M-US (SPWR-A5) INVERTERS,MOUNTED ON THE BACK OF EACH MODULE.SURGE PROTECTIONDEVICE MNSPD-300-AC(NEW)SUNPOWERPVS6MONITORINGSYSTEMCONSUMPTION CT09 MICRO-INVERTERS IN BRANCH CIRCUIT #3L1L1L2L220A60A FUSESPOINT OF INTERCONNECTION:SUPPLY SIDE TAP(IT350 POLARIS LUGS)PRODUCTION CT#6 AWG COPPERGROUNDVISIBLE-OPENLOCKABLE, READILYACCESSIBLERevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressE 1.10001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3DC System Size (Watts)AC System Size (Watts)Total Module CountPhotovoltaic System123251113629PV MODULE RATING @ STCMANUFACTURERSUNPOWER SPR-M425-H-AC (425W)OUTPUT POWER425WPOWER TOLERANCE+5/−0%MODULE EFFICIENCY22.00%TEMP. COEF. (POWER)−0.29% / °CAHJ: CITY OF LAKEVILLEUTILITY: DAKOTA ELECTRIC ASSOCIATIONNOTE :1. 24/ 7 UNESCORTED KEYLESS ACCESS IS TO BE PROVIDEDFOR ALL UTILITY EQUIPMENT.2. UTILITY AC DISCONNECT SHOULD BE LOCATEDTOGETHER IN A READILY ACCESSIBLE LOCATION 10’AWAY OF THE MAIN SERVICE METER.INVERTER SPECIFICATIONSMANUFACTURERMAX. POWER AT 40 C59 VOLTSNOMINAL AC VOLTAGE384 WATTSMAX. AC CURRENT240 VOLTSMAX. OCPD RATINGMAX. PANELS/CIRCUITSHORT CIRCUIT CURRENT1.60 AMPS20 AMPSMAX. DC VOLT RATING1015 AMPSENPHASE IQ7HS-66-M-US (SPWR-A5)Conduit Conductor Schedule (Unless Otherwise Specified Conductors Shall be Copper)DescriptionInverter Output(Enphase Q Cable)EGC (Bare Copper Ground)Inverter Output (THWN-2)EGC (THWN-2)Inverter Output (THWN)EGC (THWN)Wire Gauge# of Conductors/ColorConduit TypeConduit SizeTag #12 AWG12 AWG6 AWG10 AWG6(3L1, 3L2)1 BARE1 (GRN)3(L1, L2, N) B/R/W1 (GRN)Free AirFree AirFMCSCH 80 PVCN/AN/A3/4"3/4"1"1"11223312 AWG6 AWGFMCSCH 80 PVC6(3L1, 3L2)4Inverter Output (THWN)6 AWG3(L1, L2, N) B/R/WSCH 80 PVC 1" RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressE 1.20001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3WIRECALCSRooftop conductor ampacities designed in compliance with art. 690.8,Tables 310.15(B)(2)(a), 310.15(B)(3)(a), 310.15(B)(3)(c), 310.15(B)(16),Chapter 9 Table 4, 5, & 9. Location specific temperature obtained fromASHRAE 2017 data tablesAMBIENT TEMP (HIGH TEMP 2%)RECORD LOW TEMP-26°32°CONDUIT HEIGHTIn AtticCONDUCTOR TEMPERATURE RATE ON ROOF90°·Designed according to and all code citations are relevant to the 2023 National Electrical Code.·Tag 2-Use 96% temperature derate for conditions of use (In Attic)·Tag 3 - Use 94% temperature derate for conditions of use (adjusted ambient)·Bottom of conduit to be installed min. 7/8" above roof surface.·System grounding & bonding designed in compliance with 690.47(C)3 and 250.64(E)·Equipment shall be listed, tested, and marked to withstand the available short circuit currentELECTRICAL NOTESOCPD CalculationsBreakers sized according to continuous duty output current. PV circuit nominal current based off #of modules per Circuit X (1.25[art. 690.8(A)]) X (1.60 Max AC current per micro-inverter)Circuit #1 = 10 modules, Output Current w/ continuous duty = 20.00 <= 20A BreakerCircuit #2 = 10 modules, Output Current w/ continuous duty = 20.00 <= 20A BreakerCircuit #3 = 09 modules, Output Current w/ continuous duty = 18.00 <= 20A Breakersystem output current w/ continuous duty = 58.00 <= 60A (System OCPD)Conductor CalculationsNUMBER OF CURRENTCARRYING CONDUCTORS INCONDUIT4-67-910-20PERCENT OF VALUES.80.70.50THIS PANEL IS FED BY MULTIPLE SOURCES (UTILITYAND SOLAR)AC OUTPUT CURRENT ACCORDING TO ART. 690.8(B)(1)NOMINAL AC VOLTAGE240V46.40ACONDUCTOR TEMPERATURE RATE OFF ROOF75°PV MODULE RATING @ STCMANUFACTURERSUNPOWER SPR-M425-H-AC (425W)OUTPUT POWER425WPOWER TOLERANCE+5/−0%MODULE EFFICIENCY22.00%TEMP. COEF. (POWER)−0.29% / °CINVERTER SPECIFICATIONSMANUFACTURERMAX. POWER AT 40 C59 VOLTSNOMINAL AC VOLTAGE384 WATTSMAX. AC CURRENT240 VOLTSMAX. OCPD RATINGMAX. PANELS/CIRCUITSHORT CIRCUIT CURRENT1.60 AMPS20 AMPSMAX. DC VOLT RATING1015 AMPSENPHASE IQ7HS-66-M-US (SPWR-A5)Wire gauge calculated from code art. 310.15(B)(16) with ambient temperature calculations from art. 310.15(B)(2)(a).For "On Roof" conductors we use the 90°C column ampacity, the relevant ambient temperature adjustment, and racewayfill adjustments from 310.15(B)(16). Conduit shall be installed at least 1" above the roof deck.For "Off Roof" conductors we use the 75°C column ampacity, or the 75°C column ampacity with the relevant ambienttemperature and raceway fill adjustments, whichever is less.The rating of the conductor after adjustments MUST begreater than, or equal to, the continuous duty uprated output current.Calculation Example - Wire Rating (90°C) x Ambient Temperature Adjustment x Conduit Fill Adjustment >= ContinuousDuty Output Current(Tag 2 Inside Attic):12 gauge wire rated for 30A, 30A x 0.96 x 0.8 (6 Conductors) = 23.04> 20.00A(Tag 3 Off Roof):6 gauge wire rated for 65A , 65A x 0.94 = 61.1A > 58.00A (System Output Current)(Tag 4 Off Roof):6 gauge wire rated for 65A , 65A x 0.94 = 61.1A > 58.00A (System Output Current) RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressE 1.30001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3WARNINGLABELSLABEL LOCATION: RSD INITIATION DEVICE, AC DISCONNECTPER CODE: NEC 690.56(C)(2)ELECTRICAL SHOCK HAZARDTERMINALS ON THE LINE ANDLOAD SIDES MAY BE ENERGIZEDIN THE OPEN POSITIONWARNINGLABEL LOCATION: COMBINER PANEL, ACDISCONNECT, POINT OF INTERCONNECTIONPER CODE: NEC 706.15(C)(4), NEC 690.13(B)LABEL LOCATION: MAIN SERVICE DISCONNECT, UTILITY METERPER CODE: NEC 690.13(B)LABEL LOCATION: COMBINER PANEL(S), MAIN SERVICE DISCONNECTPER CODE: NEC 110.27(C), OSHA 1910.145(f)(7)LABEL LOCATION: AC DISCONNECTPER CODE: NEC 690.13(B)LABEL LOCATION: MAIN SERVICE DISCONNECTPER CODE: NEC 690.56(C)!LABEL LOCATION: DC CONDUIT/RACEWAYSPER CODE: NEC 690.31(D)(2)LABEL LOCATION: AC DISCONNECT/POINT OF INTERCONNECTIONPER CODE: NEC 690.54DO NOT DISCONNECTUNDER LOADLABEL LOCATION: MAIN SERVICE DISCONNECTPER CODE: NEC 690.15(B) & NEC 690.33(D)(2)DUAL POWER SOURCESECOND SOURCE IS PHOTOVOLTAIC SYSTEMWARNING!LABEL LOCATION: MAIN SERVICE DISCONNECT, PRODUCTION/NET METERPER CODE: NEC 690.59, 705.12(C)!PHOTOVOLTAICAC DISCONNECTPHOTOVOLTAIC POWER SOURCEPHOTOVOLTAIC SYSTEM AC DISCONNECTRATED AC OUPUT CURRENT: 46.40 ANOMINAL OPERATING AC VOLTAGE: 240 VTURN OFF PHOTOVOLTAIC ACDISCONNECT PRIOR TOWORKING INSIDE PANELWARNING!SOLAR PV SYSTEM EQUIPPEDWITH RAPID SHUTDOWNSOLAR ELECTRICPV PANELSTURN RAPID SHUTDOWNSWITCH TO THE"OFF" POSITION TOSHUT DOWN PV SYSTEMAND REDUCESHOCK HAZARDIN THE ARRAYMAIN PHOTOVOLTAICSYSTEM DISCONNECTRAPID SHUTDOWN FORSOLAR PV SYSTEM RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressE 1.40001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3PLACARDPOWER TO THIS BUILDING IS ALSO SUPPLIED FROM THEFOLLOWING SOURCES WITH DISCONNECTS LOCATED AS SHOWNCAUTION ! MULTIPLE SOURCES OF POWERNServiced by Wolf River ElectricContact: (763) 229-6662UTILITY METERSUNPOWERMONITORINGPHOTOVOLTAICARRAYUTILITY ACDISCONNECTPV COMBINERPANELMAIN SERVICE PANELPV PRODUCTIONMETER RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.10001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3MODULESPEC SHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.20001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3INVERTERSPEC SHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.2A0001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3INVERTERCOMPLIANCE RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.30001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3MONITORINGSPEC SHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.40001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3RAIL SPECSHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.50001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3MOUNTINGSPEC SHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.60001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3SPD SPEC SHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.70001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3PV METER SPECSHEET RevSheet NameSheet SizeSheet NumberMARGERY WEBB RESIDENCE 18289 ITALY AVE, LAKEVILLE, MN 55044 AHJ: CITY OF LAKEVILLE UTILITY: DAKOTA ELECTRIC ASSOCIATIONANSI B11" X 17"DateDescriptionREVISIONSSignature with SealProject Name &AddressD 1.80001-May-2024CAD 1DESIGNED BY:TRIVENT CAD SOLUTIONWOLF RIVER ELECTRIC101 ISANTI PARKWAY NE, SUITE GISANTI, MN 55040ELECTRICAL LICENCE# EA777669BUILDING LICENCE# BC773271CONTACT: (763) 229-6662contact@wolfriverelectric.com0203-May-2024CAD 3CHECKLIST 05/10/2024 Design Criteria Code 2020 Minnesota Building Code (ASCE 7-16) Risk category II Wind Load (component and Cladding) Roof Dead Load Dr 10 psf V 109 mph PV Dead Load DPV 3 psf Exposure C Roof Live Load Lr 20 psf Ground Snow S 50 psf If you have any questions on the above, please do not hesitate to call. Sincerely, RE: Structural Certification for Installation of Residential Solar MARGERY WEBB RESIDENCE:18289 ITALY AVE, LAKEVILLE, MN 55044 Attn: To Whom It May Concern This Letter is for the existing roof framing which supports the new PV modules as well as the attachment of the PV system to existing roof framing. From the field observation report, the roof is made of Composite shingle roofing over roof plywood supported by 2X4 Trusses at 24 inches. The slope of the roof was approximated to be 20 and 14 degrees. After review and based on our structural capacity calculation, the existing roof framing has been determined to be adequate to support the imposed loads without structural upgrades . Contractor shall verify that existing framing is consistent with the described above before install. Should they find any discrepancies, a written approval from SEOR is mandatory before proceeding with install. Capacity calculations were done in accordance with applicable building codes. Structural Letter for PV Installation Date:05/10/2024 Job Address:18289 ITALY AVE LAKEVILLE, MN 55044 Job Name:MARGERY WEBB RESIDENCE Job Number:240510MWR Scope of Work Table of Content Sheet 1 Cover2Attachment checks3Snow and Roof Framing Check 4 Seismic Check and Scope of work Engineering Calculations Summary Code 2020 Minnesota Building Code (ASCE 7-16) Risk category II Roof Dead Load Dr 10 psf PV Dead Load DPV 3 psf Roof Live Load Lr 20 psf Ground Snow S 50 psf Wind Load (component and Cladding) V 109 mph Exposure C References 2 NDS for Wood Construction Sincerely, Signed 05/10/2024 This Letter is for the existing roof framing which supports the new PV modules as well as the attachment of the PV system to existing roof framing. All PV mounting equipment shall be designed and installed per manufacturer's approved installation specifications. Wind Load Cont. 109 mph ASCE 7-16 Figure 26.5-1B C 1.0 ASCE 7-16 Sec 26.8.2 0.85 ASCE 7-16 Table 26.10-1 0.85 ASCE 7-16 Table 26.6-1 0.96 ASCE 7-16 Table 26.9-1 21.11 psf 20.0 Degrees 1.5 Conservatively assuming all exposed 0.8 conservatively assuming 10 ft2 effective area Uplift (W)Zone(1,2e)Zone(2r, 2n)Zone(3e)Zone(3r) Fig. 30-3-2 GCp=-1.1 -2 -2 -2.4 Eq. 29.4-7 P=qh(GCp)(γE)(γa)=-27.87 -50.66 -50.66 -60.80 GCp=0.5 Figure 30.3-2 P=qh(GCp)(γE)(γa)=12.67 Equation 29.4-7 Rafter Attachments: 0.6D+0.6W (CD=1.6) Connection Check Attachement max. spacing=4 ft 5/16" Lag Screw Withdrawal Value=266 lbs/in Table 12.2A - NDS 2.5 in DFL Assumed Prying Coefficient 1.4 Allowable Capacity=760 lbs Zone Trib Width Area (ft)Uplift (lbs)Down (lbs) Zone(1,2e)4 11.0 122.2 103.4 Zone(2r, 2n)4 11.0 212.5 103.4 Zone(3e)4 11.0 212.5 103.4 Zone(3r)4 11.0 252.6 103.4 Conservative Max=252.6 <760 CONNECTION IS OK II Wind Speed (3s gust), V = Exposure = 1. Pv seismic dead weight is negligible to result in significant seismic uplift, therefore the wind uplift governs γE= γa= KZt = qh= 0.00256KzKztKdKeV2= Pitch = Lag Screw Penetration Risk Category = KZ = Kd = Ke = Vertical Load Resisting System Design Roof Framing Trusses Snow Load Fully Exposed pg=50 psf Ce =0.9 Ct =1.1 Is =1.0pf = 35 psf pfmin. = 34.7 psf ps = 35 psf CS=0.8 54.29 plf Max Length, L =6.0 ft (Beam maximum Allowable Span) Tributary Width, WT =24 in Dr =10 psf 20 plf PvDL =3 psf 6 plf Load Case: DL+0.75(0.6W+S) 0.75(Pnet+Ps)+ Ppvcos(θ)+PDL=74 plf Mdown=223 lb-ft Mallowable = Sx x Fb' (wind)=634 lb-ft >223 lb-ft OK Load Case: DL+S Ps+ Ppvcos(θ)+PDL=80 plf Mdown=201 lb-ft Mallowable = Sx x Fb' (wind)=456 lb-ft >201 lb-ft OK Load Case: DL+0.6W Pnet+ Ppvcos(θ)+PDL=36.1 plf Max Moment, Mu=108 lb-ft Mallowable = Sx x Fb' (wind)=634 lb-ft >108 lb-ft OK Pv max Shear=103.4 lbs Shear, Vu=wL/2+Pv Point Load =181 lbs Max Shear, Vu=wL/2+Pv Point Load =240 lb Member Capacity DF-L No.2 2X4 CL CF Ci Cr KF φ λ Fb =900 psi 1.0 1.5 1.0 1.15 2.54 0.85 0.8 1553 psi Fv =180 psi N/A N/A 1.0 N/A 2.88 0.75 0.8 180 psi E =1600000 psi N/A N/A 1.0 N/A N/A N/A N/A 1600000 psi Emin =580000 psi N/A N/A 1.0 N/A 1.76 0.85 N/A 580000 psi Depth, d =3.5 in Width, b =1.5 in Cross-Sectonal Area, A =5.25 in2 Moment of Inertia, Ixx =5.35938 in4 Section Modulus, Sxx =3.0625 in3 Allowable Moment, Mall = Fb'Sxx =396.2 lb-ft DCR=Mu/Mall =0.44 < 1 Satisfactory Allowable Shear, Vall = 2/3Fv'A =630.0 lb DCR=Vu/Vall =0.25 < 1 Satisfactory Design Value Adjusted Value Siesmic Loads Check Roof Dead Load 10 psf % or Roof with Pv 23.8% Dpv and Racking 3 psf Average Total Dead Load 10.7 psf Increase in Dead Load 3.6%OK Limits of Scope of Work and Liability The increase in seismic Dead weight as a result of the solar system is less than 10% of the existing structure and therefore no further seismic analysis is required. We have based our structural capacity determination on information in pictures and a drawing set titled PV plans - MARGERY WEBB RESIDENCE. The analysis was according to applicable building codes, professional engineering and design experience, opinions and judgments. The calculations produced for this Structure's assessment are only for the proposed solar panel installation referenced in the stamped plan set and were made according to generally recognized structural analysis standards and procedures.