Approval has been given to the compliance plans of two more US RTOs and ISOs to be filed under FERC Order 841, the ruling set by the US Federal Energy Regulatory Commission (FERC) designed to open up regional grid operators’ wholesale markets to electricity storage.

Battery storage and demand-side response have continued to play a crucial role in the UK’s power mix, together landing more than 500MW of contracts in the most recent T-1 Capacity Market auction.