An optimal power system portfolio for the US state of California that would drive the world’s fifth largest economy towards greenhouse gas reduction goals for 2030 and then to zero carbon by 2040, includes 1GW of long duration energy storage.

A programme to re-configure New York’s energy networks, including a comprehensive evaluation of energy storage, could provide “valuable lessons” for other parts of the world, according to the New York Battery and Energy Storage Technology consortium (NY BEST).