Table 1
Installed capacities of different energy storage technologies [DOE]*.
| Technology category | Rated power (kW) |
|---|---|
| Lead-carbon | 392 |
| Liquid air energy storage | 5,350 |
| Compressed air energy storage | 8,410 |
| Hydrogen storage | 20,485 |
| Electro-chemical | 338,878 |
| Lithium-ion battery | 754,610 |
| Thermal storage | 1,869,639 |
| Electro-mechanical | 1,923,688 |
| Pumped-hydro storage | 181,910,506 |
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