One of the biggest isolated grids in the world continues to flex its energy storage muscle with the approval of a huge six-hour big battery and a brand new proposal for an eight-hour BESS.

Federal and state governments back rollout of 18 community batteries on parts of the grid with particularly high rooftop solar uptake.

Australian renewables developer BLT Energy has been granted development approval for an 800 NW/4,800 MWh battery storage project in Western Australia, one of the largest ones of…