Pumped-storage hydro · grid battery
Chaira
operatingBulgaria · closed loop, no river attached
- Turbine capacity
- 864 MW
- Energy storage
- -
- Gross head
- -
- First unit
- 1993
The Balkans' largest PSH, below the Belmeken reservoir; offline after a March 2022 turbine failure, with unit 2 back at 210 MW in May 2025 and two more sets due through 2026
Nameplate figures and coordinates: Wikipedia · 42.1603, 23.8613