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About Cumulus Energy Storage

Cumulus Energy Storage (Cumulus) aims to be the leading manufacturer and developer of grid-level rechargeable Copper/Zinc energy storage batteries with the lowest levelised cost of storage (LCOS) globally. Large scale storage is an essential part of the future of energy. We need electricity super-storage to give industry the freedom of instantly available renewable electricity; give grid the capacity to deliver security of supply; and give time-shifting to renewables so that solar energy after sunset becomes reality. The market drivers for energy storage are set in legislation. Increasing distributed renewables generation, especially the recent growth in solar PV on top of onshore and offshore wind, is causing pain points for grid infrastructure and incumbent generators; creating urgent global need for reliable low-cost, scalable grid-level energy storage. Cumulus has taken the bold and visionary step of combining a 200 year old technology from one industry, with technology from two other industrial-scale processes, to create a disruptive opportunity – electricity super-storage – using patent granted technology in the form of a low-cost grid-scale rechargeable Copper/Zinc battery. With financial support from the UK government and investment from business angels, Cumulus has extended from Sheffield to San Francisco, with laboratory facilities developing grid-connected full-scale prototypes. Pilot line production, followed by full production capacity, is supported by global component manufacturers and continental forming and assembly plants; delivering our super-storage products and services to customers through local project developers.

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