Solar Photovoltaic Inspection Checklist

This checklist is modeled after the framework provided by the Great Plains Institute, the Solar ABCs, and the best practices of the Solsmart Program.

Instructions: Submit all required information on this checklist, plans, and accompanying information with online application.

Checklist Items:

 Manufacturer's specifications for the inverter
 Manufacturer's specifications for the module
 Manufacturer's specifications for the optimizer (if used)
 Verification that the racking system grounding and bonding is listed

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Inspections Process FAQs
How many inspections are required for accessory use solar PV projects? Which specific inspections are those?

The city of New Brighton requires two inspections: one final building inspection, and one final electrical inspection.

Does the city offer inspection appointment times in lieu of appointment windows for solar PV?

Yes, the city provides online scheduling as on option. Half-hour time slots may be requestedand confirmed.

How many days does the city take to complete solar PV inspections after the inspection request?

Inspections take between 24-48 hours to complete after the time of the request.

Does the city provide an online process for solar PV Inspection scheduling?

Yes, please visit our inspections website page.

What details will inspectors be looking for?

oReference the MN Department of Labor & Industry’s “Solar PV Resources” webpage, as well as the following four (4) inspections categories:

  1. PV Inverter 
  2. Wiring Methods &Disconnecting Means 
  3. System Grounding 
  4. Interconnection.

Scroll down on this page for more FAQs that explain in detail each category.

Inspection Categories
1.PV Inverter

□ Is the PV system utility-interactive or standalone? 690.2
□ Is all the equipment listed for PV application? 690.4
□ Is the system grounded or ungrounded? (if ungrounded, the system needs to comply with6 90.35)
□ Has DC Ground-Fault Protection been provided and properly labeled? 690.5 & 690.35(C)?
□ What is the maximum PV system voltage? 690.7
□ Is all listed equipment rated for the maximum voltage? 690.7
□ Determine the maximum circuit current for the PV Source and Output Circuit; Inverter Output Circuit; Stand-Alone Inverter Input Circuit; and DC to DC Converter Output (refer to inverter documentation)

Click here to see the NEC Labeling Requirements

2.Wiring Methods and Disconnecting Means

□ Are the conductor and cable ampacities determined at 125% before adjustment factors? 690.8 (B)
□ How are the PV Source and Output Circuit protected from overcurrent? 690.9 (A&B)
□ Do AC or DC OCPD's have the appropriate voltage, current and interrupt ratings? 690.9(C)
□ Has arc-fault circuit protection been provided for DC source and/or output circuits? 690.11
□ Is a rapid shutdown required and if so, how is it accomplished and identified? 690.12
□ Is the PV disconnect permanently marked and installed in a readily accessible location? 690.13
□ Has the fuse disconnecting means, if required, been installed? 690.16
□ Are PV source or output circuits > 30 volts in a raceway or guarded if readily accessible? 690.31
□ Is single conductor cable used outdoors Type USE-2 or listed & labeled PV wire? 690.31(C) (Ungrounded systems must be labeled PV wire only. 690.35)
□ Are PV source or output circuits on or inside a building in a metal raceway and marked? 690.31(G)
□ Are all connectors polarized, guarded, latching-type or tool-safeguarded, rated to interrupt the available current or labeled "Do Not Disconnect Under Load"? 690.33

Click here to see the NEC Labeling Requirements

3. System Grounding

□ Has the system been grounded at one single point? 690.42
□ Are all exposed non-current carrying metal parts of the PV system grounded? 690.43(A&B)
□ Are the mounting structures or systems used for equipment grounding? 690.43(C&D)
□ Are the interconnecting devices used for equipment grounding listed and identified? 690.43 (C&D)
□ Is the EGC properly sized and protected if exposed and smaller than #6? 690.50, 250.122, 250 .120(c)
□ Has the grounding electrode system been installed? 690.47
□ If both are present, has the DC grounding electrode system been bonded to the AC GES? 690.47(C)
□ Was an auxiliary electrode installed at the array? 690.47

Click here to see the NEC Labeling Requirements

4. Interconnection

□ Has a plaque or directory been installed at each disconnecting means (capable of interconnection) denoting all electric power sources & power production sources? 705.10
□ Has the point of connection to other sources been installed per 705.12? 690.64
□ Is the supply side disconnect readily accessible and within 10’ of the connection point? 705.12 (A)
□ Are the utility interactive inverters connected to the system through a dedicated circuit breaker or fusible disconnecting means? 705.12(D)(1)
□ Does the bus or conductor ampacity comply with 705.12(D) (2)?
□ Have all the required labels been applied? (See appendix 1 “NEC Labelling Requirements”)

Click here to see the NEC Labeling Requirements