Ben Lincoln, energy expert at intellectual property law firm Potter Clarkson, looks at patent filing activity in energy storage technologies outside the world of electrochemical batteries.
Iron-air battery firm Form Energy has received a US$12 million grant from the state of New York for a 1GWh long-duration energy storage project, whilst Ecolectro Inc, PolyJoule Inc and Urban Electric Power received smaller amounts.
By the end of 2022, US co-located renewable and energy storage projects totalled 41GW of generating power and 5.4GW/15.2GWh of energy storage, according to Lawrence Berkeley National Laboratory (LBNL) analysis.