Research Article
Backup of Renewable Energy for an Electrical Island: Case Study of Israeli Electricity System—Current Status
Table 3
Features of desired energy storage.
| Application | Desired feature | Required discharge time |
| Power quality | Transient stability, frequency regulation | Seconds to minutes | Bridging power | Contingency reserves, ramping | Minutes to ~1 hour | Energy management | Load leveling, firm capacity, & deferral | Hours |
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