Pumped Hydroelectric Energy Storage
Revision as of 11:05, 27 April 2020 by storagewiki.epri.com>Jthompson (Created page with "{{Energy Storage Technology Simple |imgdesc=Cross section of a pumped hydroelectricity station }} {{#set: Has How it Works Description=Water is pumped up hill with excess e...")
Basic Technology Characteristics
Cross section of a pumped hydroelectricity station | |
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| How it Works: | Gravitational potential energy ↔ kinetic energy ↔ electricity
Water is pumped up hill with excess electrical energy which is stored as gravitational potential energy. When energy is needed, water flows down through the generator to produce electricity. |
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| Applications: | Bulk, long-duration services, power regulation and load following |
| AC RTE Efficiency: | 70-85% |
| Cycle Life: | 60-100 years1 |
| Technology Readiness Level (TRL): | 9 - Fully Mature |
| Installed Capacity: | >160 GW |
