The ETI support will allow Isentropic to build a full-scale, grid-connected demonstrator of its pumped-heat electricity storage (PHES) device.
The 1.5MW/6MWh PHES system will be wired into a substation owned by Western Power Distribution in the English Midlands. It could be rolled out to some 5,000 substations across the UK.
The PHES is made up of two gravel-filled, steel “silos” that store and release energy using argon gas circulated by an electric motor.
The
