South Australia's Premier Jay Weatherill announced the plan to roll out a network of at least 50,000 home solar and battery systems across the state, which will work together to help provide an aggregated and tradeable power supply.
The installation of the network has already started with a trial on 1,100 social housing properties. Each house will get a 5kW solar panel system and a 13.5 kWh Tesla Powerwall 2 battery installed at no cost. The systems will be financed through the sale of the electricity.
Systems will then be installed at a further 24,000 South Australia Housing Trust properties, with a similar deal then being offered to all South Australian households. The plan is for at least 50,000 households to participate over the next four years.
Frontier Economics analysis indicates that the distributed 250 MW plant could lower energy bills for participating households by 30%, and that the increased capacity will increase energy security and stability in South Australia. The state government is assisting the rollout with a A$2 million grant and a A$30 million loan from its Renewable Technology Fund.
Extract from p3, Energy World magazine, March 2018