Performance

Solar PV audit checklist items

Question and ratingRelevant standards and references

Performance 1
If the solar array is installed on a domestic dwelling and connected to a grid inverter, Is the array’s maximum voltage VoC array max (at minimum temperature) less than 1000V DC or 1500V DC for all other electrical installation types (e.g. commercial)?

Applicable rating: Needs rectification

AS/NZS 4777.1:2024 Clause 4.3.2

Performance 2
Is the PCE PV input voltage rated to at least the PV array max voltage (at minimum temperature) of the circuit that is connected?

Applicable rating: Needs rectification

AS/NZS 5033:2021 Clause 4.5.1.1

Performance 5
Calculate system parameters based on configuration – confirm DC isolators on roof and at ground meet minimum requirements and array configuration is suitable for inverter optimal operation.

Applicable rating: No rating is applied

Not applicable

Performance 7 ***UPDATED***
Are the estimated AC wiring losses more than 2% between the inverter terminals and the point of supply, taking into account any generation supply limits?

Applicable rating: Improvements identified

AS/NZS 4777.1:2024 Clause 3.3.3

Updated