Anyone who's photovoltaic solar panel system meets the following requirements can apply:Your installation's capacity is no greater than 5MWYour solar panels were installed under the Microgeneration Certification Scheme.
Voc (open-circuit voltage) is the highest — typically 38–55 V for residential panels — and is what the inverter sees when no current is flowing. You can usually find this number on a label on the back of the solar panel. How many of this panel are you wiring in series? (If you're wiring different solar panels together, use the "Add a Panel" button below. These values are referred to as the open circuit voltage and the maximum power voltage.