What size solar PV system can I connect to qualify as a G83 single installation?
For a generation system to qualify as a (G83) single installation it needs to be rated at or below 16A per phase. This means that the output or 'rating' of the system can be up to 3.68 kilowatts (kW) per phase (11.04kW for a three phase system).
Generation rated above 16A per phase are considered under the G59 large scale generation process.
The electricity produced by solar PV panels is direct current (DC). Before it can be used in the home it has to be converted to alternating current (AC), using a box called an Inverter.
The rating of the single phase PV system is the lower of:
- The rating of the inverter (based on 230V) and
- The sum of the ratings of the PV panels x the maximum efficiency of the inverter.
For a 100% efficient inverter rated over 3.68kW, only 3.68kW of PV panels would qualify.
4kW PV panels would qualify, for inverters up to 92% efficient or if the inverter was only rated 3.68kV.
4kW PV panels would not qualify if the inverter is rated over 3.68kW and is more than 92% efficient.
Please note for PV installations using micro-inverters (where a small inverter typically between 200watts and 300watts) is used for each PV panel, we will require G83/1-1 type tests to be carried out on groups of inverters with a combined rating of between 2kW and 4kW.