Rooftop solar photovoltaic (PV) systems in South Australia generated 497 gigawatt hours (GWh) of electricity in Australia's fiscal year 2012-2013, which ran from July 1st, 2012 to June 30th, 2013.
This is 11% higher than forecasts, and represented 3.7% of South Australia's energy production during the year, according to the Australian Energy Market Operator (AEMO). By 2022-2023 AEMO expects PV output to increase to 1.12 TWh, or 8.9% of the state's electricity supply.
AEMO speculates that the increased production is likely due to a rush to install rooftop PV systems prior to feed-in tariff reductions on September 30th, 2013, but also notes the role of increased energy prices and lower costs for imported PV modules.
The solar Feed In Tariff (FIT) rate of 25.8c has been the most generous in Australia as all other state governments in Australia have reduced the FIT to under 10c per kWh exported..
This FIT incentive will be greatly reduced soon when the SA Power Networks component is dropped for new applications; leaving the feed in tariff at 9.8c per kilowatt hour for surplus exported electricity.