Long-Duration Energy Storage
Multi-hour and multi-day storage for renewable-heavy grids.
Beyond lithium-ion, long-duration storage includes flow batteries, gravity storage, thermal storage, and compressed air systems designed to deliver power for 10–100+ hours. These technologies smooth out multi-day renewable fluctuations, enabling grids to operate reliably with very high penetrations of wind and solar.
TRL
5/9Validated
Impact
5/5
Investment
4/5
Category
Hardware
