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Cumulus Energy Storage
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Cumulus is developing grid energy storage batteries for long-duration time-shifting of renewable energy. 30 year life, fully-maintainable, >85% round trip efficiency with LCOE projected at $180/MWh.

Founded in 2014
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Company type Private Public ()
Company type

Industry Group energy & power

Sector energy storage

TRL Range 4-6
TRL 1 Basic research
TRL 2 Technology formulation
TRL 3 Applied research
TRL 4 Small scale prototype
TRL 5 Large scale prototype
TRL 6 Prototype system
TRL 7 Demonstration system
TRL 8 First of a kind commercial system
TRL 9 Full commercial application
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Headquarters United Kingdom Rotherham, United Kingdom
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Updated by Darron Brackenbury at Cumulus Energy Storage on 03/11/2015

Edited by Cleantech Group on 11/13/2020

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10/24/2020
Energy Systems Catapult Energy Systems Catapult
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Confirmed by Energy Systems Catapult
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Date Investors Type Amount
05/01/2014 Angel Investors (Unidentified) Angel Investors (Unidentified) (1)
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Cumulus is funded by $1.6M of Angel seed investment and grant monies
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