Seed funding for medium-duration eTanker energy storage

The funding has been awarded to Cheesecake Energy Ltd (CEL), which is developing eTanker, an advanced thermal and compressed air energy system that could cut the cost of storing energy by 30-40 per cent.

The Nottingham University spin-out believes eTanker could be used in sectors including electric vehicle (EV) charging, heavy industry and renewable energy generation.

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The company will use the funding to develop its manufacturing capabilities and support product development of eTanker which can fulfil medium-duration energy storage requirements (4-200 hours) that alternative technologies cannot satisfy.

“We're competing with longer-duration lithium-ion systems and flow batteries, but offer a lower cost and much more sustainable offering, with no rare or toxic materials and with a design that can be fully recycled at end-of-life,” said CEL CEO, Mike Simpson. “Our system stores much of the energy as heat in inert rock in a way that is passively safe, avoiding the fire risk faced by some battery technologies.”