Cheesecake Energy’s eTanker energy storage system is a stationary, medium to long-duration energy storage solution which delivers cheap, reliable, efficient energy storage in a modular, containerised package.
The technology stores energy in the form of heat and pressurised air, re-tasking ex-service truck engines to become zero-emission electrical power-conversion machines for putting energy into storage and recovering it from storage. The resulting system does not use diesel or any fuel. It is safe, straightforward to operate, has a lifetime of up to 25 years and can deliver turnaround efficiencies of around 70%.
How it Works
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Lithium-ion currently dominates the market for new medium-scale projects. Whilst it is well suited to mobile applications and for delivering short bursts of power to the grid, for stationary applications that need to deliver power for many hours at a time, it is a costly and environmentally damaging solution.
CEL’s eTanker system can supply full power for up to 20 hours at a fraction of the cost over 25 years versus lithium-ion’s 5-10 year lifetime. And unlike lithium-ion, eTanker can be fully recycled, with the lowest lifetime environmental footprint.
Towards a Circular Economy
At Cheesecake Energy, we’re driven by circular economy principles from design and manufacturing through to implementation and maintenance. Our mechanical system utilises benign, plentiful, and fully recyclable raw materials to ensure a negligible environmental footprint.
For its air compressors, our eTanker system reuses ex-service truck engines, using electric motors to drive the pistons and compress air, all without combustion or emissions. Instead of custom-made pressure vessels, the system stores the high-pressure air in skids from the compressed natural gas industry, allowing for faster deployment times as well as exploiting existing supply chains and substantial economies of scale.