South Australia: 85% solar & wind in December
- Jan 1, 2023 8:45 am GMT
The state of South Australia generated 85% of its electricity from solar and wind during the month of December 2022, at an average price on the spot market of US$37/MWh.
For 2022 as a whole the solar/wind fraction was 68%, up from 1% in 2007 and 36% in 2015.
South Australia has a population of 1.7 million. Its electricity comes mostly from solar and wind. The balance is generated from fossil gas with a small fraction (~1%) of net imports/exports. South Australia has no hydroelectric, coal, bio, geo or nuclear generation.
South Australia is part of Australia's National Electricity Market but is relatively weakly connected to the other states. Transmission capacity is ~0.9 GW compared with average and peak demand of 1.6 GW and 3.2 GW respectively. South Australia hosts about 0.5 GW of batteries and four new synchronous condensers.
Solar and wind generation exceeded 100% of demand on 6 days during December. The rooftop solar fraction reached 100% of demand at times.
The South Australia grid displays excellent stability.
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