Inspection Checklist Guide for PV Systems in One

The markings say “WARNING: PHOTOVOLTAIC POWER SOURCE” and have 3/8-inch (9.5 mm) minimum-sized white letters on a red background. The signs are made of reflective weather resistant

GRID-TIED PHOTOVOLTAIC (PV) SYSTEM: CHECKLIST AND

Generation meters (If generation meters are already installed, there is no need to install additional summation meters as the generation meters can double up as summation meters)

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Confirm the system power output under actual conditions meets expected output. Actual performance should be within about 5% of expected STC power. This procedure includes system

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4 Frequently Asked Questions about "Solar power generation check-in point"

How do I know if my solar system is working?

Confirm the system power output under actual conditions meets expected output. Actual performance should be within about 5% of expected STC power. This procedure includes system nameplate rating (kW), solar irradiance measurement (W/m2) and module cell temperature (C).

When should a solar system be inspected?

Procedure is best conducted during consistent weather conditions, where no array shading is present, and solar irradiance is not less than 400 W/m2. Owner should check system AC power output monthly near solar noon on a clear day Field Inspection Guidelines for PV Systems.

Where is a photovoltaic power source marking located?

Marking is placed adjacent to the main service disconnect in a location clearly visible from where the disconnect is operated. (CFC 605.11.1.3 & CRC R331.2.3) 67. The markings say “WARNING: PHOTOVOLTAIC POWER SOURCE” and have 3/8-inch (9.5 mm) minimum-sized white letters on a red background.

How do I know if my inverter is working properly?

Confirm inverter's power reading using independent meters. (afterwards, inverter power readings may be used for subsequent reporting.) Confirm the system power output under actual conditions meets expected output. Actual performance should be within about 5% of expected STC power.

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