'Community' local area batteries are $1 million (AU) and service ~ 200 homes (at $5,000 per home across a decade) with some 280 kilowatt-hours of storage, soaking up power during the day from rooftop solar | wind and feeding it back at night | during lulls.
These complement hybrid smart grids and greatly reduce fossil fuel usage at approx $500 per home per year.
[1] https://www.energy.vic.gov.au/batteries-and-energy-storage/n...
[2] https://www.abc.net.au/news/2021-05-24/community-battery-yac...
[3] https://www.abc.net.au/news/2022-06-05/community-battery-in-...
'Community' local area batteries are $1 million (AU) and service ~ 200 homes (at $5,000 per home across a decade) with some 280 kilowatt-hours of storage, soaking up power during the day from rooftop solar | wind and feeding it back at night | during lulls.
These complement hybrid smart grids and greatly reduce fossil fuel usage at approx $500 per home per year.
Early days, time will tell.