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HomeMy WebLinkAboutAS20231128-4501-14-7-A Inspection Checklist Address: 639 Rainbow Pl Diamond Bar, CA 91765 Approval ID: SA20231128-4501-14-7-A AHJ: City of Diamond Bar, CA Scope of work: ROOF MOUNT SOLAR PV: 5.46 kW PANELS: 14 INVERTERS: 1 ESS: 1 TESLA General Guidelines The installer shall follow the manufacturer's instructions for all installed equipment and shall have them available at the time of inspection. All wire sizes shown are a minimum, unless indicated otherwise, and the installer may upsize them at their discretion. All OCPD ratings shown must match the inspection checklist and be installed per the equipment manufacturer's instructions, any ratings that do not match the inspection checklist are valid reasons for inspection failure. Conduit sizing to be confirmed at time of inspection. Contractor to provide conduit fill calculations where requested by inspector Where distribution equipment, such as the main service panel or subpanel buses, are fed simultaneously by a primary source(s) of electricity and one or more other power sources, interconnection shall have a method of compliance at each panel board with both a primary source and other power source(s). Diagram MSP (E) Subpanel ESS Solar Main Service Panel Equipment Pass If grounding electrode is rod, pipe or plate, then supplemental electrode is properly installed. Exception: If a single rod, pipe, or plate grounding electrode has a resistance to earth of 25 ohms or less, the supplemental electrode shall not be required. EGC is installed ensuring continuity to all system components and finally to grounding electrode. Single Phase Grid Voltage 240 V Busbar 1 Pass Existing Main Service Panel Existing Main Service Panel busbar ampere rating 125 A Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 1/41 NEC 2020 PV+ST (rev_k) Rating of the OCPD protecting the Existing Main Service Panel 100 A Backfeed breakers are at opposite load ends of the panel. For center fed panels, backfeed breakers are on one side of main breaker and not both in the panel. Busbar 1 Pass Busbar 2 Pass Existing Subpanel Generation sources are connected directly to the Existing Subpanel Existing Subpanel busbar ampere rating 225 A Rating of the OCPD protecting the Existing Subpanel 50 A Backfeed breakers are at opposite load ends of the panel. For center fed panels, backfeed breakers are on one side of main breaker and not both in the panel. Equipment: Point of Connection Pass Utility Service Rating 125 A Equipment Point of Interconnection Pass All power production inverter outputs have the same point of connection. Connected equipment is within line of sight and closer than 10ft to the point of interconnection or a disconnect/isolation means are installed. There is no existing Utility interactive power production source connected to the home’s electric service. - Only the utility interactive power production sources and/or photovoltaic modules specified on this inspection checklist list are present on site. DC and AC conductors are copper, Class B or Class C, and THWN-2, NM or PV Wire, or they are a jacketed multiconductor cable assembly listed and identified for the application. All power terminals are rated to 75°C or greater, labeled for use with Copper Class B or Class C wires, and accept at least 8 AWG wire. Conductors are properly terminated and wired according to the code. Where Equipment Grounding Conductors (EGC) or Grounding Electrode Conductors (GEC) are not routed with circuit conductors, they are a minimum of 6 AWG or they are protected from physical damage There is a minimum working clearance according to the code; for all components that may require service, the standing area of the workspace shall not contain obstructions, abrupt changes in grade, or irregularities. Existing service equipment is rated for 10kAic Backup Initiation Device Pass Backup Initiation Device manufacturer Tesla Inc. Backup Initiation Device model 1232100-XX-Y Rating of OCPD protecting the Backup Initiation Device 30 A The length of the section of the Backup Initiation Device feeders that is inside a raceway is less than or equal to 2 feet Yes Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 2/41 NEC 2020 PV+ST (rev_k) Backup Initiation Device feeders material Copper Conductor gauge of Backup Initiation Device copper feeders 10 AWG Equipment Grounding Conductor size for the Backup Initiation Device 10 AWG The rating of the largest load shall be less than or equal to 36.96 A Backup Initiation Device Pass Inverter Pass Inverter architecture:String Inverter without DC-DC Converters EGC Wire Size Inverter 1 10 AWG Overcurrent Protective Device rating: Inverter 1 30 AMP AC Wire size Inverter 1 10 AWG Maximum number of THWN-2 conductors in a PV inverter AC output circuit raceway, excluding any equipment grounding conductors.3 Inverter 1 model number E4-TL-US [240V] Inverter 1 manufacturer Delta Electronics Maximum number of THWN-2 DC conductors in raceway, excluding any equipment grounding conductors.4 wires Maximum number of DC PV wire or USE-2 conductors in raceway, excluding any equipment grounding conductors.0 wires Minimum DC Wire Gauge (THWN-2 Wire) for a single series string 12 AWG DC strings EGC is a minimum of 10 AWG Verify that string voltage does not exceed 600V.276 V PV inverter maximum input DC open circuit voltage (Voc) on the equipment label 480 V PV inverter maximum input DC short circuit current (Isc) on the equipment label 19 A Presence of Rapid Shutdown switch label per Fire Bulletin Energy Storage System 1 Pass ESS Model 1 Manufacturer Tesla Inc. ESS Model 1 Model Number AC Powerwall 3012170- xx-y Quantity of ESS Model 1 units 1 Energy Storage Equipment Location Pass All of the Energy Storage Equipment units are installed in the following location Outdoor walls Energy Storage Equipment units are located a minimum of 3 feet (914 mm) from doors and windows directly entering the dwelling unit The Energy Storage Equipment units are not installed in a location subject to vehicle damage Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 3/41 NEC 2020 PV+ST (rev_k) Energy Storage Architecture Pass Number of distinct Energy Storage System Models used 1 Energy Storage Equipment Pass Energy Storage Equipment is installed per the manufacturer's instructions. Energy Storage Equipment is attached to the building using appropriate fasteners per the manufacturer. Energy Storage Equipment assembly weight 250 lb The center of mass of the Energy Storage Equipment is located less than 4ft from the floor. Energy Storage System Pass The energy storage system has been installed per the manufacturer's instructions and in compliance with the approved UL 9540A report. ESS Model 1 Pass This is an AC Coupled ESS model 1 architecture ESS Model 1 Overcurrent Protection size 30 A Maximum number of THWN-2 conductors in the AC coupled ESS Model 1 inverter output circuit raceway, excluding any equipment grounding conductors.1 wires ESS Model 1 inverter output conductor gauge 10 AWG Equipment Grounding Conductor size per ESS Model 1 inverter output circuit 10 AWG Roof and PV Array Pass The system will be installed on a permitted structure Racking System Model Number Ultra Rail Racking System Manufacturer SnapNRack The module and racking system shall be installed per the racking manufacturer's installation instructions regarding grounding and bonding, fire, and load ratings Yes Attachment points of the mounting system are staggered No Maximum spacing in inches between adjacent attachment points of the mounting system 72" Roof penetration sealant method has been installed per the manufacturers instructions. The distance from the lowest point of the module to the roof surface does not exceed 10 in The roof structure appears to be structurally sound, without signs of alterations or significant structural deterioration or sagging. Quantity and spacing of structural attachments match the installation instructions per manufacturer. Array conductors are secured and supported. Installed so as not to damage the cable, at intervals not exceeding 1.4 m (4.5 ft) and within 300 mm (12 in.) of every cable entry into enclosures such as outlet boxes, junction boxes, cabinets, or fittings. Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 4/41 NEC 2020 PV+ST (rev_k) PV Module model number JAM54S31-390/MR PV Module manufacturer JA Solar PV Module quantity 14 Module fire rating type 1 Rapid Shutdown Device Manufacturer APsmart Rapid Shutdown Device Model Number RSD-S-PLC Method of rapid shutdown compliance Inside the Array Controlled Conductors Maximum amount of PV modules installed per rapid shutdown equipment inside the array 2 module/RSD All rooftop conduits are mounted at least 7/8” above the roof surface. Amount of Rapid Shutdown Devices installed installed inside the array 14 All conductors installed without raceway are listed as PV Wire, USE-2 or Type distributed generation (DG) cable Roof and PV Array Pass Roof Plane 1 Pass Pitch 5/12 Roof Covering Clay and concrete tile Fire Pass Percentage of the Roof with a Solar Array 14.17% Fire Pathways, venting and access in accordance with the SolarAPP Fire Bulletin and/or the AHJ requirements therein Disconnecting Means are in compliance with the SolarAPP Fire Bulletin Signage, Placards, Directories and Markings in accordance with the SolarAPP Fire Bulletin The installation is in compliance with the AHJ Fire Bulletin Appendix Confirmed Maximum AC operating current in labels 36.96 A Maximum AC operating voltage in labels 240 V Energy Storage Equipment locations are in accordance with the SolarAPP Fire Bulletin Energy Storage Equipment capacities are in accordance with the SolarAPP Fire Bulletin Energy Storage Equipment installations are compliant with the safety measures required in the SolarAPP Fire Bulletin Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 5/41 NEC 2020 PV+ST (rev_k) Corrections Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 6/41 NEC 2020 PV+ST (rev_k) SolarAPP+ Fire Bulletin Disconnecting Means SolarAPP+ Fire Bulletin PV System PV system disconnecting means shall be provided in accordance with the 2020 National Electrical Code® (NEC), NFPA 70.(R) [690.13] A Rapid Shutdown switch shall be provided at a readily accessible location outside the building in accordance with the 2020 National Electrical Code® (NEC), NFPA 70.® [690.12(C)] Energy Storage System A disconnecting means is required for all ungrounded conductors derived from an ESS [NEC 706.15(A)] Where remote actuation of the disconnecting means is employed the controls are not within sight of the ESS, the disconnecting means shall be capable of being locked in the open position. [NEC 706.15(B); 110.25] The disconnecting means can be integral to listed ESS equipment [NEC 706.15(A)] The disconnecting means must be readily accessible [NEC 706.15(A)(1)] Where circuits from the input or output terminals of energy storage components in an ESS pass through a wall, floor, or ceiling, a readily accessible disconnecting means shall be provided within sight of the energy storage component. Fused disconnecting means or circuit breakers shall be permitted to be used. [NEC 706.15(D); 706.31(F)] The disconnecting means must be within sight of the ESS or as close as practicable with a marking [NEC 706.15(A)(2)] The disconnecting means must be lockable open in accordance with 110.25 [NEC 706.15(A)(3)] For one-family and two-family dwellings, a disconnecting means or its remote control shall be located at a readily accessible location outside the building. [NEC 706.15(A)] The marking for the ESS must indicate whether it is open or closed and be permanently marked “ENERGY STORAGE SYSTEM DISCONNECT.” The disconnecting means must be legibly marked with nominal ESS ac voltage, maximum ESS dc voltage. [NEC 706.15(C)] Signs, Placards, Directories, and Markings Guidance SolarAPP+ Fire Bulletin General All labeling shall comply with Section 324 of the 2021 International Residential Code and Articles 690 and 705 of the 2020 National Electrical Code® (NEC), NFPA 70 All labeling shall comply with [NEC 110.21 (B)] Rapid Shutdown Label Buildings with more than one rapid shutdown type: A detailed plan view diagram showing each PV system and a dotted line around areas that remain energized after the rapid shutdown switch is operated. [NEC 690.56(C)] Rapid Shutdown (PV Hazard Control) switch: This switch shall have a label not greater than 3 feet from the switch that states the following: RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM [NEC 690.56(C)(1)] SolarAPP+ Fire Bulletin Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 7/41 NEC 2020 PV+ST (rev_k) Roof Access, Egress, and Ventilation General Access and minimum spacing shall be provided for access to specific areas of the roof, emergency egress from the roof and opportunities for smoke ventilation in accordance with the 2021 International Residential Code [IRC 324.6] References: Ridge Setbacks - [IRC R324.6.2] Sprinklered Occupancies - [IRC R324.6.2.1] Pathways - [IRC 324.6.1] Emergency escape and rescue openings - [IRC R324.6.3] Exceptions: Detached, non-inhabitable structures [IRC R324.6 Ex. 1] Low-slope roofs with pitch of less than or equal to 2:12; this exception may not be valid depending on the jurisdiction. [IRC R324.6 Ex. 3] BIPV systems listed and labeled in accordance with Section 690.12(B)(2) of NFPA 70, where the removal or cutting away of portions of the BIPV system during fire-fighting operations has been determined to not expose a fire fighter to electrical shock hazards. [IRC R324.6 Ex. 4] Carbon Monoxide, Smoke & Heat Detectors SolarAPP+ Fire Bulletin Guidance: Where required, Carbon Monoxide and smoke detectors shall be provided in accordance with the code or an Affidavit has been provided by the customer. 2021 International Residential Code.[R314, R315] Rooms and areas within dwelling units, basements and attached garages in which ESS are installed shall be protected by smoke alarms in accordance to the code. A heat detector, listed and interconnected to the smoke alarms, shall be installed in locations within dweling units and attached garages where smoke alarms cannot be installed based on their listing. 2021 International Residential Code.[R314, R315, R328.7] Energy Storage System SolarAPP+ Fire Bulletin Special Considerations ESS shall not be installed in sleeping rooms, or closets or spaces opening directly into sleeping rooms. [IRC R328.4] Aggregate energy ratings shall not exceed: 40kWh within utility closets, basements, and storage or utility spaces 80kWh in attached or detached garages and detached accessory structures 80kWh on exterior walls 80kWh outdoors on the ground 0kWh in habitable space [IRC R328.4,R328.5] When the ESS is installed in a location subject to vehicle damage it shall be protected by approved barriers. [IRC R328.8] ESS installed indoors that produce hydrogen or other flammable gases during charging shall be provided with either natural or mechanical ventilation in accordance with Section M1307.4.1 or M1307.4.2. [IRC R328.9; M1307.4] Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 8/41 NEC 2020 PV+ST (rev_k) Individual energy storage systems shall be separated from each other by at least three feet of spacing unless smaller separation distances are documented to be adequate as approved by the code official based on large scale fire testing. [IRC R328.3.1] Individual ESS unit ratings shall not exceed 20kWh. [IRC R328.5] ESS shall be installed only in the following locations: 1. Detached garages and detached accessory structures. 2. Attached garages separated from the dwelling unit living space in accordance with the Code. 3. Outdoors or on the exterior side of exterior walls located not less than 3 feet (914 mm) from doors and windows directly entering the dwelling unit. 4. Enclosed utility closets, basements, storage or utility spaces within dwelling units with finished or noncombustible walls and ceilings. Walls and ceilings of unfinished wood-framed construction shall be provided with not less than 5/8 inch Type X gypsum wallboard. [IRC R328.4] Documentation and labeling A copy of the manufacturer's installation, operation, maintenance and decommissioning instructions shall be provided to the owner or placed in a conspicuous location near the ESS equipment. [IRC R328.11] A label on the installed system containing the contact information for the qualified maintenance and service providers. [IRC R328.11] Fire Classification SolarAPP+ Fire Bulletin PV System Rooftop-mounted PV systems shall have the same fire classification as the roof assembly required in 2021 International Residential Code. [R902.4; R324.4.2] Building-integrated photovoltaic products installed as the roof covering shall be tested, listed, and labeled for fire classification. [IRC R902.3, R324.5.2] Building-integrated photovoltaic products installed as the roof covering shall comply with the minimum requirements for fire classification set by the jurisdiction. [IRC R902.1] Product Certifications SolarAPP+ Fire Bulletin PV System PV panels and modules shall be listed and labeled to UL 1703 and/or both UL 61730-1 and UL 61730-2 [NEC 690.4(B)][IRC R324.3.1] Inverters shall be listed and labeled to UL 1741 [NEC 690.4(B)][IRC R324.3.1] Hazard Control System Hazard control system shall be listed and labeled to UL 3741 [NEC 90.7; 110.3(C); 690.4(B); 690.12(B)(2)(1); 690.12(D)] Energy Storage System The ESS inverter, for AC Coupled systems, shall be listed and labeled to UL 1741 [IRC R328.6] The ESS shall be listed and labeled to UL 9540 [IRC R328.2] The ESS Microgrid Interconnection Device shall be listed and labeled to UL 1741 [IRC R328.6] Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 9/41 NEC 2020 PV+ST (rev_k) Signs, Placards, Directories, and Markings SolarAPP+ Fire Bulletin Service Disconnect SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN ARRAY. Simple Diagram Here Location: At each service equipment location to which the PV systems are connected. Code: [NEC 690.56(C)] RSD Initiation Device RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM Location: Rapid shutdown initiation device. Code: [NEC 690.56(C)(2)] Point of Interconnection CAUTION: MULTIPLE SOURCES OF POWER (LAYOUT OR DESCRIPTION) Location: Service location or approved readily accessible location Code: [NEC 705.10] WARNING: TRI POWER SOURCE SECOND SOURCE IS PV SYSTEM THIRD SOURCE IS ENERGY STORAGE SYSTEM Location: Electrical Equipment containing overcurrent devices in circuits supplying power to a busbar or conductor supplied from multiple sources Code: [NEC 705.12 (C)] WARNING: POWER SOURCE OUTPUT CONNECTION - DO NOT RELOCATE THIS OVERCURRENT DEVICE WARNING: THIS EQUIPMENT FED BY MULTIPLE SOURCES. TOTAL RATING OF ALL OVERCURRENT DEVICES EXCLUDING MAIN SUPPLY OVERCURRENT DEVICE, SHALL NOT EXCEED AMPACITY OF BUSBAR Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 10/41 NEC 2020 PV+ST (rev_k) Location: At back-feed breaker if using 120% rule (if applicable) Code: [NEC 705.12(B)(3)(2)] Location: At distribution equipment adjacent to the back-fed breaker from the power source when using this "sum of breakers" code compliance rule. Code: [NEC 705.12(B)(3)(3)] WARNING: ELECTRIC SHOCK HAZARD TERMINALS ON THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION Location: For ESS disconnecting means where the line and load terminals may be energized in the open position. Code: [NEC 705.15(C)] PHOTOVOLTAIC POINT OF INTERCONNECTION MAXIMUM AC OPERATING CURRENT: MAXIMUM AC OPERATING VOLTAGE: Location: All interactive system(s) points of interconnection. Code: [NEC 690.54] DC Circuit Raceways and Enclosures PHOTOVOLTAIC POWER SOURCE Location: Unless located and arranged so the purpose is evident, labels will be required for DC Circuit Raceways and Enclosures, conduit, and combiner/junction boxes. Code: [NEC 690.31(D)(2)] PV System Disconnect WARNING: ELECTRIC SHOCK HAZARD TERMINALS ON LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION PV SYSTEM DISCONNECT Location: Each PV System Disconnect (May be AC or DC) Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 11/41 NEC 2020 PV+ST (rev_k) Location: DC Disconnecting Means where terminals on both line and load side may remain energized. Example language or equivalent. Code: [NEC 690.13(B)] Code: [NEC 690.13(B)] DC String Inverters Equipment Disconnects WARNING: ELECTRIC SHOCK HAZARD TERMINALS ON THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION Location: Each PV system disconnecting means where line and load may be energized in the open position Code: [NEC 690.13(B)] PHOTOVOLTAIC DC DISCONNECT Location: Each PV system disconnecting means. Code: [NEC 690.13(B)] PV SYSTEM MAXIMUM VOLTAGE: Location: At each DC PV system disconnecting means. Code: [NEC 690.53] Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 12/41 NEC 2020 PV+ST (rev_k) FIRE SAFETY CODE REQUIREMENTS Does the home have sprinkler systems?No Percentage of Roof Area covered with PV Total Array Area / Total Roof Area 14.17% Roof Access and Ventilation Diagrams Fire Safety Ridge Setbacks PV Less Than 33% Roof Area (66% for homes with sprinkler systems) or per AHJ appendix. Emergency Escape & Rescue Opening Minimum 3’ Emergency Escape Pathway Hips and Valley Setbacks PV Less Than 33% Roof Area - Street Access (66% for homes with sprinkler systems) or per AHJ appendix. PV Less Than 33% Roof Area - Driveway Access (66% for homes with sprinkler systems) or per AHJ appendix. Powered by TCPDF (www.tcpdf.org) Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 13/41 NEC 2020 PV+ST (rev_k) Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 14/41 NEC 2020 PV+ST (rev_k) Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 15/41 NEC 2020 PV+ST (rev_k) Uploaded Datasheet - 4501-fire-bulletin-appendix.pdf Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 16/41 NEC 2020 PV+ST (rev_k) INPUTS Permit Details [80.19(H) ; R105.3] GENERAL Project Information Project Title 639LARS Address 639 Rainbow Pl Diamond Bar, CA 91765 Homeowner's full name EDWARD LARSON Confirm that you have verified the homeowner's information and right to install on the property. Confirmed AHJ City of Diamond Bar, CA Project Type PV+ST Code Cycle 2020/2021 Scope of Work ROOF MOUNT SOLAR PV: 5.46 kW PANELS: 14 INVERTERS: 1 ESS: 1 TESLA PV System Size AC (kW)3.87 PV System Size DC (kW)5.46 kW Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 17/41 NEC 2020 PV+ST (rev_k) General Confirm you have reviewed SolarAPP eligibility:Yes General The system will be installed on a permitted structure 1 Inspection Guidelines Where distribution equipment, such as the main service panel or subpanel buses, are fed simultaneously by a primary source(s) of electricity and one or more other power sources, interconnection shall have a method of compliance at each panel board with both a primary source and other power source(s). Contractor Information Installation Applicability and Compliance All work will comply with the 2020 National Electrical Code (NFPA 70), the International Code Council 2021 I-Codes, Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI7-16), UL Standards, Manufacturer's instructions, and Municipal requirements. State License Type state Number 750184 City Business License Type city Number LC20100000010 Inspection Guidelines Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 18/41 NEC 2020 PV+ST (rev_k) The installer shall follow the manufacturer's instructions for all installed equipment and shall have them available at the time of inspection. All wire sizes shown are a minimum, unless indicated otherwise, and the installer may upsize them at their discretion. All OCPD ratings shown must match the inspection checklist and be installed per the equipment manufacturer's instructions, any ratings that do not match the inspection checklist are valid reasons for inspection failure. Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 19/41 NEC 2020 PV+ST (rev_k) FIRE I hereby affirm that I will comply with all requirements and guidelines as set out by the SolarAPP Fire Bulletin. Confirmed I hereby affirm that I will comply with all requirements and guidelines as set out by the AHJ Fire Bulletin Appendix Confirmed Does the home have sprinkler systems?No What is the total array area?286.32 sqft Total roof area 2020 sqft Percentage of Roof Area covered with PV Total Array Area / Total Roof Area 14.17% See Fire Setback Diagram attached.Less Than 33/66 Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 20/41 NEC 2020 PV+ST (rev_k) STRUCTURAL DETAILS General The weight of the PV system in lbs/sq ft [IRC R301.4]3 psf The ground snow load is [IRC Table R301.2] [IRC Fig R301.2(3) R301.2(4)]0 lb/sqft Proposed maximum spacing in inches between adjacent attachment points of the mounting system 72" Will attachment points of the mounting system be staggered?No The number of roof surfaces at different slopes and/or orientations that will be used for installation are: Note: 1 means all roofs used have the same orientation. 1 Type of mounting for the PV system Flush mount Mounting Planes Mounting Plane Type 1 Maximum distance from the lowest point of the module to the roof 6" The current roof covering is [IRC Section R905]Clay and concrete tile The pitch of the roof surface is [IRC Section R905]5/12 Wind Speed Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 21/41 NEC 2020 PV+ST (rev_k) Is the solar module and mounting system rated by the manufacturer to withstand the upward force of the local wind speed (95 MPH) and evenly distribute load into the supporting structure at the proposed maximum spacing, and confirmed in UL 1703 or 61730 (Part 1 & 2), and 2703 listings? [IRC R324.4.1.2; R324.3.1] Yes Roof Condition Does the roof structure appear to be structurally sound, without signs of alterations or significant structural deterioration or sagging? Yes Energy Storage Equipment Mounting Large Scale Fire Testing Will the separation between Energy Storage Equipment units be less than 3 feet?Yes Has the UL 9540A report been reviewed and approved by the jurisdiction to allow for ESS units to be spaced by less than 3 feet? Yes Seismic Design Category What is the seismic design category for this area? (Please see ASCE 7-16 Table 11.6-1, SolarAPP only covers Risk Category I-III structures) [ASCE 7-16 Table 11.6-1] SDC E Will the Energy Storage Equipment be installed per the manufacturer's instructions?Yes Is the Energy Storage Equipment attached to the building using appropriate fasteners per the manufacturer? [ASCE 7-16 13.1.4.5.a] Yes How much does the Energy Storage Equipment assembly weight?250 lb Is the center of mass of the Energy Storage Equipment located less than 4ft from the floor? [ASCE 7-16 13.1.4.6.a] Yes Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 22/41 NEC 2020 PV+ST (rev_k) ELECTRICAL DETAILS Equipment Inverter 1 What is the maximum fuse rating allowed on Inverter 1?30 A Inverter 1 Model Number E4-TL-US [240V] Datasheet for Inverter 1: See attached. [NEC 90.7; 110.3(C)][IRC R106.1]3. INVERTER - DELTA E4- E10 (1).pdf Inverter 1 Manufacturer:Delta Electronics Is Inverter 1 UL 1741 listed? [NEC 110.3(C); 690.4(B)][IRC R324.3.1]Yes Will you use a Power Control System to curtail the Maximum Continous Output Power of the Inverter 1? No Inverter 1 Maximum Continous Output Power 3.87 kW Architecture type used for all inverters in this project String Inverter without DC-DC Converters Inverter 2 Inverter 2 Maximum Continous Output Power 0 kW Modules Module 1 Model Number JAM54S31-390/MR Datasheet for Module 1: See attached. [NEC 90.7; 110.3(C)][IRC R106.1][Datasheet] JA Solar JAM54S31 380-405.pdf Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 23/41 NEC 2020 PV+ST (rev_k) Modules Module 1 Manufacturer JA Solar Is Module 1 UL 1703 or UL 61730 (Part 1 & 2) listed? [NEC 110.3(C); 690.4(B)][IRC R324.3.1] Yes Module 1 quantity 14 Module open circuit voltage with record low temperature correction 39.38 V Module short circuit current with average high temperature correction 17.01 A Is the PV module bifacial?No Module fire rating type 1 Racking System Racking System Model Number Ultra Rail Racking System Manufacturer SnapNRack Datasheet for Racking System: See attached. [NEC 90.7; 110.3(C)][IRC R106.1]SNR-DC-0437-0438.pdf Is the Racking System UL 2703 listed for grounding and bonding with the PV module models specified in this SolarAPP project? [NEC 90.7; 110.3(C); 690.43(A)][IRC R324.4.2; R902.4] Yes The combination of modules and racking system shall have the same fire classification as the roof assembly. [IRC R324.4.2; R902.4] Yes Name/description of roof penetration sealant method to be used.CHEMLINK Datasheet for sealant method: See attached.Chemlink.pdf Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 24/41 NEC 2020 PV+ST (rev_k) Racking System You have agreed to install the sealant method per the manufacturer's instructions for the means of accomplishing weather proofing [IRC R324.4.3] Yes Fire classification [IRC R324.4.2]A Compatible roof pitch regime Both Compatible module fire rating types 1 2 Maximum gap between the roof and the lowest point of the module 10 in Compatible Roof Types Asphalt or composition shingles Clay and concrete tile Slate and slate-type shingles Metal roof shingles or panels Mineral-surfaced roll roofing Wood shingles or Wood shakes Built-up roofs Modified bitumen roofing Thermoset/Thermoplastic single- ply roofing Sprayed polyurethane foam roofing Liquid applied roofing Rapid Shutdown Rapid Shutdown Device Manufacturer APsmart Rapid Shutdown Device Model Number RSD-S-PLC Datasheet for Rapid Shutdown Device [NEC 90.7; 110.3(C)][IRC R106.1]2. OPTIMIZER - APsmart RSD-S- PLC.pdf Module open circuit voltage is below the Rapid Shutdown maximum DC input voltage. The maximum DC input voltage for the equipment in question is 80 V Module short circuit current is below the Rapid Shutdown maximum DC input current. The maximum DC input current for the equipment in question is 25 A Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 25/41 NEC 2020 PV+ST (rev_k) Rapid Shutdown Method of Rapid Shutdown Compliance Inside the Array Controlled Conductors Maximum amount of PV modules installed per rapid shutdown equipment inside the array [NEC 690.12(B)(2)(2)] 2 module/RSD The amount of rapid shutdown devices installed inside the array 14 Safety voltage estimate after rapid shutdown activation for outside the array boundary. (Safety voltage of 1.75 V assumed per RSD device) 12.25 V Energy Storage Architecture The equipment used for energy storage is Energy Storage System Number of distinct Energy Storage System Models used 1 Each ESS unit has a dedicated OCPD, there are no parallel connections between AC coupled ESS units. Yes Energy Storage Equipment Location Location of the Energy Storage Equipment units [IRC R328.4]Outdoor walls Will the Energy Storage Equipment be located not less than 3 feet (914 mm) from doors and windows directly entering the dwelling unit? [IRC R328.4 (3)] Yes Will the energy storage equipment be installed in a location subject to vehicle damage? [IRC R328.8] No Energy Storage System Model 1 ESS Manufacturer Tesla Inc. ESS Model Number AC Powerwall 3012170-xx-y Will you use a Power Control System to curtail the Maximum Continous Output Power of the ESS? No Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 26/41 NEC 2020 PV+ST (rev_k) Energy Storage System Model 1 An AC coupled ESS, with a dedicated AC output and OCPD different from the PV inverter will be installed. True The ESS is certified to UL 9540 [IRC R328.2]Yes Upload Datasheet. See attached.Tesla Battery_Specs.pdf Quantity of ESS units 1 Individual ESS energy capacity [IRC R328.5]13.5 kWh Site Conditions Ambient Dry Bulb Extreme Record Low Temperature (°C) [690.7(A)]-1.4 °C Ambient Dry Bulb Average High Temperature (°C)37.8 °C Single Phase Grid Voltage 240 V Installation Details Is there an existing Utility interactive power production source connected to the home's electric service? No Are DC and AC conductors copper, Class B or Class C, and THWN-2, NM, USE-2, PV Wire, or jacketed multiconductor cable assembly listed and identified for the application? [NEC 690.8(B); 690.31 (A) & (C), 310.15(A) and (B)] Yes Are all rooftop conduits mounted at least 7/8" above the roof surface [NEC 310.15(B)(2)]: Yes Are all power terminals rated to 75°C or greater, labeled for use with Copper Class B or Class C wires, and accept at least 8 AWG wire? [NEC 110.14] Yes Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 27/41 NEC 2020 PV+ST (rev_k) Where Equipment Grounding Conductors (EGC) or Grounding Electrode Conductors (GEC) are not routed with circuit conductors, they are a minimum of 6 AWG or they are protected from physical damage [250.120(C); 250.64(B)(3)] Yes DC strings EGC is a minimum of 10 AWG Yes Module voltage and current DC specifications fall within allowable range of connected equipment Yes All equipment is listed for the application, rated equal to or greater than the connected overcurrent device and installed per the manufacturer's instructions. Documentation shall be provided at time of inspection. Yes Is there a utility available fault current greater than 10kA at the service?No Are all conductors installed without raceway listed as PV Wire, USE-2 or Type distributed generation (DG) cable? [NEC 690.31(C)(1)] Yes Inverter without DC-DC Converters Maximum PV Source Circuit Voltage [690.7(A)(1)] Max quantity modules in DC series string 7 modules Maximum PV Source Circuit Voltage, Calculation: For DC strings of modules, using the Voc of proposed modules, the lowest ambient temperature entered above, and the temperature coefficient provided by the manufacturer, calculate that maximum voltage for the quantity of modules in a DC string entered above does not exceed 600V using the following formula: ( ( pv_beta_Voc * pv_Nameplate_Voc / 100 ) * ( record_low_temperature - 25 ) +pv_Nameplate_Voc) * I24 ((((-0.259) x (36.9)) / 100) x (-1 - 25) + 36.9) x 7 = 276 <= 600V PV Source Circuit PV module series strings from solar arrays to the PV inverter are combined in parallel No PV inverter maximum input DC open circuit voltage (Voc) [NEC 690.8(A)(1)(a)(1)]480 V PV inverter maximum input DC short circuit current (Isc)19 A Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 28/41 NEC 2020 PV+ST (rev_k) PV Source Circuit Maximum number of DC PV wire or USE-2 conductors in a raceway from solar arrays to the PV inverter, excluding any equipment grounding conductors. 0 wires Maximum number of DC THWN-2 conductors in a raceway from solar arrays to the PV inverter, excluding any equipment grounding conductors. 4 wires Minimum DC Wire Gauge (PV Wire) for a single series string - See Table 1 12 AWG Minimum DC Wire Gauge (THWN-2 Wire) for a single series string - See Table 1 12 AWG TABLE 1 [NEC 240.4(D); Table 310.15(C)(1); Table 310.15(B)(2); Table 310.16; 690.8(A)(1); 690.8(B)] Single String of DC PV Circuits Parallel Strings of DC PV Circuits Current Carrying Conductors (CCC) in raceway Site Average High Temperature (deg C) 12 AWG 10 AWG 8 AWG 12 AWG 10 AWG 8 AWG <=3 CCC or Free Air <= 35 Isc < 23.04A Isc < 30.72A Isc < 42.24A Isc < 11.52A Isc < 15.36A Isc < 21.12A <= 40 Isc < 21.84A Isc < 29.12A Isc < 40.04A Isc < 10.92A Isc < 14.56A Isc < 20.02A <= 45 Isc < 20.88A Isc < 27.84A Isc < 38.28A Isc < 10.44A Isc < 13.92A Isc < 19.14A <= 50 Isc < 19.68A Isc < 26.24A Isc < 36.08A Isc < 9.84A Isc < 13.12A Isc < 18.04A 4 - 6 CCC <= 35 Isc < 18.432A Isc < 24.576A Isc < 33.792A Isc < 9.216A Isc < 12.288A Isc < 16.896A <= 40 Isc < 17.472A Isc < 23.296A Isc < 32.032A Isc < 8.736A Isc < 11.648A Isc < 16.016A <= 45 Isc < 16.704A Isc < 22.272A Isc < 30.624A Isc < 8.352A Isc < 11.136A Isc < 15.312A <= 50 Isc < 15.744A Isc < 20.992A Isc < 28.864A Isc < 7.872A Isc < 10.496A Isc < 14.432A 7 - 9 CCC <= 35 Isc < 16.128A Isc < 21.504A Isc < 29.568A Isc < 8.064A Isc < 10.752A Isc < 14.784A <= 40 Isc < 15.288A Isc < 20.384A Isc < 28.028A Isc < 7.644A Isc < 10.192A Isc < 14.014A <= 45 Isc < 14.616A Isc < 19.488A Isc < 26.796A Isc < 7.308A Isc < 9.744A Isc < 13.398A <= 50 Isc < 13.776A Isc < 18.368A Isc < 25.256A Isc < 6.888A Isc < 9.184A Isc < 12.628A [Table 310.15(B)(3)(a) ; Table 310.15(B)(2)(b) ; Table 310.15(B)(16) ; 690.8(A)(1) ; 690.8(B)] Inverter Output Circuit See Table 3 below for selection of minimum Inverter output wire size and inverter output overcurrent protection size [NEC Chapter 9 Table 4, Article 358] Inverter 1: Inverter Continuous Output Current = Power / Site Voltage:16.13 A Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 29/41 NEC 2020 PV+ST (rev_k) Inverter Output Circuit TABLE 3 [NEC 240.4(D); table 310.15(C)(1); table 310.15(B)(2); table 310.16; 690.8; 690.9; 705.30; 220.5 (B)] Continuous Output Current 12.5 16.5 20.5 24.5 28.5 32.5 36.5 40.5 48.5 56.5 64.5 72.5 80.5 88.5 100. 5 120. 5 140. 5 160. 5 OCPD amperage size 15 20 25 30 35 40 45 50 60 70 80 90 100 110 125 150 175 200 AWG wire size for <=3 CCC in raceway 12 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 AWG wire size for 4 - 6 CCC in raceway 12 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 AWG wire size for 7 - 9 CCC in raceway 12 12 10 10 8 8 8 6 6 4 4 3 3 2 1 2/0 3/0 4/0 NM wire 12 12 10 10 8 8 6 6 4 4 3 2 1 1 1/0 N/A N/A N/A [240.4(D); Table 310.15(B)(3)(a) ; Table 310.15(B)(2)(b) ; Table 310.15(B)(16) ; 690.8; 690.9; 705.30] Inverter 1 - See Table 3 for the minimum Overcurrent Protection Device rating. [NEC 690.9(A); 690.9(B); Table 240.6(A)] 20 A Inverter 1 Overcurrent Protection Device rating [NEC 690.9(A); 690.9(B)]30 A Maximum number of THWN-2 conductors in an PV inverter AC output circuit raceway, excluding any equipment grounding conductors. 3 Inverter 1 - See Table 3for selection of the AC wire size in raceway 10 AWG Grounding & Bonding See Table 5 for selection of Equipment Grounding Conductor wire gauge. Inverter 1 - See table 5 for Equipment Grounding Conductor (EGC) based on overcurrent protective device 10 AWG TABLE 5 [NEC Table 250.122] OCPD rating (amperes)EGC wire gauge (AWG) =< 15 14 =< 20 12 =< 30 10 =< 40 10 =< 60 10 =< 100 8 =< 200 6 [Table 250.122] Electrical Work Main Panel Upgrades and Main Breaker Derates A Main Panel Upgrade is being performed.No Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 30/41 NEC 2020 PV+ST (rev_k) Main Panel Upgrades and Main Breaker Derates A Main Breaker Derate is being performed.No Busbars Busbar quantity 2 Busbar 1 Busbar name Existing Main Service Panel Is this a combiner panel?No Is this an existing busbar?Yes Select the type of existing busbar Main Service Panel Ratings Existing Main Service Panel busbar ampere rating 125 A Rating of the OCPD protecting the Existing Main Service Panel 100 A Feeder Interconnection Are you connecting your power production sources to the Existing Main Service Panel feeders at a location other than the downstream end of the feeder? [NEC 705.12 (B) (3) (6); 705.12 (B) (1) (a); 705.12 (B) (1) (b)] N/A Interconnection compliance Generation sources connected on the load side of the feeder OCPD to the Existing Main Service Panel Yes Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 31/41 NEC 2020 PV+ST (rev_k) Interconnection compliance Generation sources are connected directly to the Existing Main Service Panel No Compliance method for the Existing Main Service Panel 120% rule Busbar 2 Busbar name Existing Subpanel Is this a combiner panel?No Is this an existing busbar?Yes Select the type of existing busbar Subpanel Ratings Existing Subpanel busbar ampere rating 225 A Rating of the OCPD protecting the Existing Subpanel 50 A Feeder Interconnection Are you connecting your power production sources to the Existing Subpanel feeders at a location other than the downstream end of the feeder? [NEC 705.12 (B) (3) (6); 705.12 (B) (1) (a); 705.12 (B) (1) (b)] No Interconnection compliance Generation sources connected on the load side of the feeder OCPD to the Existing Subpanel Yes Generation sources are connected directly to the Existing Subpanel Yes Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 32/41 NEC 2020 PV+ST (rev_k) Interconnection compliance Compliance method for the Existing Subpanel 120% rule Interconnection compliance method at Busbar 1 120% Rule Where two sources, one a primary power source and the other another power source, are located at opposite ends of a busbar that contains loads, the sum of 125 percent of the power source(s) output circuit current and the rating of the overcurrent device protecting the busbar shall not exceed 120 percent of the ampacity of the busbar. 705.12(B)(3)(2) Interconnection compliance method at Busbar 2 120% Rule Where two sources, one a primary power source and the other another power source, are located at opposite ends of a busbar that contains loads, the sum of 125 percent of the power source(s) output circuit current and the rating of the overcurrent device protecting the busbar shall not exceed 120 percent of the ampacity of the busbar. 705.12(B)(3)(2) Service Service OCPD Location Existing Main Service Panel Service OCPD Rating 100 A Service OCPD is greater than 100A Utility Service Rating 125 A Equipment Point of Interconnection Point of Connection Microinverter quantity multiplier (1 for string inverters)1 Sum of the PV inverters continous output current 16.13 A Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 33/41 NEC 2020 PV+ST (rev_k) Point of Connection 125% of the sum of power production sources continuous output current.46 A Will all power production inverter outputs have the same point of connection?Yes At the time of inspection, it will be verified that if connected equipment is NOT within line of sight or closer than 10ft to the point of interconnection, disconnect or isolation means are installed. [NEC 690.15 (A)] Point of Connection at Service Feeders Supply Side Connection Are you connecting your power production sources in a supply side connection in accordance with [NEC 705.11]? No Supported Tie-Ins The point of interconnection is at the existing subpanel Yes Main Service Panel type Regular Combiner Panel Configuration None The busbar quantity per busbar category is aligned with the list of SolarAPP supported tie-ins. A Main Service Panel has been found in the busbar inputs. The MSP has been verified for backfeed compliance. SolarAPP Supported Tie-Ins ID 431 A new backup load center is being installed No The point of interconnection is at the new backup load center No Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 34/41 NEC 2020 PV+ST (rev_k) A new non-backup load center is being installed No A Main Panel Insert is being installed to relocate high demand loads from the existing main service panel to a new main service panel outside of backup, reducing the amount of loads that require relocation on projects with energy storage. No ESS Model 1 ESS Architecture This is an AC Coupled ESS Yes Installation Details The ESS inverter is certified to UL 1741 [IRC R328.6]Yes Individual ESS Inverter output Maximum Continuous Discharge Power (kW)5 kW Maximum Continuous Discharge Current (A) [NEC 706.30]20.83 A ESS - See Table 3 for the minimum Overcurrent Protection Device rating. [NEC 705.30; Table 240.6(A)] 30 A ESS Overcurrent Protection Device rating [NEC 690.9(A); 690.9(B)]30 A Maximum number of THWN-2 conductors in the AC coupled ESS inverter output circuit raceway, excluding any equipment grounding conductors. 1 wires Based on Table 3, calculate ESS inverter output conductor gauge(T62, I144) —› Table#3 —› T63 AWG 10 AWG Ground Based on Table 5, calculate Equipment Grounding Conductor size per ESS inverter output circuit 10 AWG Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 35/41 NEC 2020 PV+ST (rev_k) Backup Initiation Device Backup Loads Backup capacity 36.96 A The rating of the largest utilization load shall be below the backup capacity [NEC 710.15(A)] Will the Energy Storage System have adequate capacity to supply connected equipment or backup loads in the event of a grid outage? [NEC Article 710][NEC Article 702] Yes Will you install a Backup Initiation Device?Yes Backup Initiation Device type MID Backup Initiation Device integration method External Backup Initiation Device manufacturer Tesla Inc. Backup Initiation Device model 1232100-XX-Y Ampere rating of the Backup Initiation Device 200 A The MID is listed and labeled to UL1741 Yes External Rating of OCPD protecting the Backup Initiation Device 30 A The length of the section of the Backup Initiation Device feeders that is inside a raceway is less than or equal to 2 feet [NEC 310.15(C)(1)(b)] Yes Backup Initiation Device feeders material Copper Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 36/41 NEC 2020 PV+ST (rev_k) External Based on Table 23, calculate conductor gauge of Backup Initiation Device feeders 10 AWG Table 23 Feeder OCPD amperage size 15 20 25 30 35 40 45 50 60 70 80 90 100 110 125 150 175 200 Feeder OCP = Service rating N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 4 2 2 1 1/0 2/0 Feeder raceway < = 2 14 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 =<3 CCC in feeder raceway 14 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 4-6 CCC in feeder raceway 14 12 10 10 8 8 6 6 6 4 3 3 2 1 1/0 2/0 3/0 4/0 7-9 CCC in feeder raceway 14 12 10 8 8 6 6 6 4 3 3 2 1 1/0 2/0 3/0 4/0 Not Com patibl e [240.4(D); Table 310.15(B)(3)(a) ; Table 310.15(B)(2)(b) ; Table 310.15(B)(16) ; 690.8; 690.9; 705.30] The Backup Initiation Device will contain the service disconnect No Based on Table 5, calculate Equipment Grounding Conductor (EGC) size for the Backup Initiation Device 10 AWG Table 5 [NEC Table 250.122] OCPD rating (amperes)EGC wire gauge (AWG) =< 15 14 =< 20 12 =< 30 10 =< 40 10 =< 60 10 =< 100 8 =< 200 6 [Table 250.122] Energy Storage System Combined Capacity Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 37/41 NEC 2020 PV+ST (rev_k) Combined Capacity Table 3 [NEC 240.4(D); table 310.15(C)(1); table 310.15(B)(2); table 310.16; 690.8; 690.9; 705.30; 220.5 (B)] Continuous Output Current 12.5 16.5 20.5 24.5 28.5 32.5 36.5 40.5 48.5 56.5 64.5 72.5 80.5 88.5 100. 5 120. 5 140. 5 160. 5 OCPD amperage size 15 20 25 30 35 40 45 50 60 70 80 90 100 110 125 150 175 200 AWG wire size for <=3 CCC in raceway 12 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 AWG wire size for 4 - 6 CCC in raceway 12 12 10 10 8 8 8 8 6 4 4 3 3 2 1 1/0 2/0 3/0 AWG wire size for 7 - 9 CCC in raceway 12 12 10 10 8 8 8 6 6 4 4 3 3 2 1 2/0 3/0 4/0 NM wire 12 12 10 10 8 8 6 6 4 4 3 2 1 1 1/0 N/A N/A N/A [240.4(D); Table 310.15(B)(3)(a) ; Table 310.15(B)(2)(b) ; Table 310.15(B)(16) ; 690.8; 690.9; 705.30] Table 5 [NEC Table 250.122] OCPD rating (amperes)EGC wire gauge (AWG) =< 15 14 =< 20 12 =< 30 10 =< 40 10 =< 60 10 =< 100 8 =< 200 6 [Table 250.122] Combined continuous output current of all ESS inverters 20.83 A Combined ESS energy capacity [IRC R328.5]13.5 kWh Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 38/41 NEC 2020 PV+ST (rev_k) WORKERS' COMP By applying for this permit, you represent and warrant that youhave (and will have during the performance of the work) all valid approvals, certifications, and licenses required for the performance of the work for which this permit is issued, (ii) carry (and will carry during the performance of the work) all necessary insurance required by law or governmental authority in the jurisdiction and (iii) will comply with all applicable laws required in the performance of the work. Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 39/41 NEC 2020 PV+ST (rev_k) SolarAPP PV+ST Eligibility 09/08/2022 System New Rooftop Residential Retrofit PV Systems With Energy Storage Systems Installed by contractor with all licenses required by jurisdiction Lithium Ion Each residence must have a unique utility meter Electrical Applicable National Electric Code 600V Max per DC System Size Single phase 240 V only Aluminum wires are only allowed for Backup Initiation Device feeders Must Use 600V rated PV wire (due to outer diameter > 0.24" (6.1mm)) Must use 90 deg C rated insulated wire Max 2 DC strings in parallel Max 9 current carrying conductors in a raceway Inverter output circuit conductors must be THWN-2, or listed NM Terminals must be rated to 75 deg C, labeled for use with Cu wires, and accept minimum 8 AWG wire Whenever used, the microinverters or AC Modules branch circuit overcurrent protection device must be rated for a maximum of 20A Permitted to install on up to or equal to 400A Service Permitted to install on up to or equal to 225A Service Disconnect Permitted to install on up to or equal to 225A busbars No existing PV or ESS May install only 1 module type May install up to 2 Inverters for String Inverters, up to 1 inverter type for Micro-inverters and AC modules Systems Conduit may not be Schedule 80 PVC Modules and Inverters must be listed on CEC Rapid Shutdown cannot be satisfied using the method: No exposed wiring or conductive parts [690.12(B)(2)(3)] No trenching allowed All power production inverter outputs have the same point of connection No new loads, only new monitoring loads are allowed All equipment is assumed to be non-continuous rated ESS must be paired with new PV at this time AC Coupled ESS may not be connected in parallel May install only 1 racking system type Height of rooftop conduit > = 7/8" Flat Plate PV Modules Only Structural Detached one- and two-family dwellings and townhomes not more than three stories above grade plane in height with a separate means of egress Accessory structures to one- and two-family dwellings and townhomes not more than three stories above grade plane in height Penetrations within 4 ft of the fire-rated property line on the roof of a townhome shall not be permitted Installations in multi-family structures or R-2 occupancies shall not be permitted Installations on mobile homes governed by Heath and Safety Code and/or Housing and Urban Development regulations shall not be permitted. Applicable International Residential Code PV system + hardware weight is less than or equal to 4psf No ground mounted systems No carports or non-permanent structures No modification alterations or upgrades to the structure At least 20% of each tilt-up mounted array must be contained under 2 feet above the roof Installed on a permitted structure ESS Must be less than 400lbs and its center of mass shall be located less than 4ft from the floor in high seismic areas (Seismic Design Category D,E,F) No wood shake or wood shingle roofing Limit of 10" above the roof for pitched (>2/12) roof systems No metal roof or low-slope roof in areas with > 15psf snow load Fire Applicable International Residential Code Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+Page 40/41 NEC 2020 PV+ST (rev_k) SolarAPP PV+ST Eligibility 09/08/2022 ESS shall not be installed within the habitable space of a dwelling unit. Powered by TCPDF (www.tcpdf.org) Approval ID: SA20231128-4501-14-7-A Reviewed for Code compliance 11-28-2023 SolarAPP+ Page 41/41 NEC 2020 PV+ST (rev_k)