Chaira Hydro Power Plant
1999 (units 3 and 4)
The Chaira Pumped Storage Hydro Power Plant (Chaira PSHPP) was built in the Rila mountains, about 100 kilometres (62 mi) southeast of Bulgaria's capital city, Sofia. Chaira has generating capacity of 864 megawatts (1,159,000 hp) and a pumping capacity of 788 megawatts (1,057,000 hp). The power plant is equipped with four reversible Francis pump-turbines, each rated at 216 megawatts (290,000 hp) in the generating mode, and 197 megawatts (264,000 hp) in pumping mode. Units 1 and 2 have been in operation since 1995, and at that time Chaira was the largest pumped-storage plant in southeast Europe with the highest head in the world for a single-stage pump turbine (690 metres (2,260 ft) generating and 701 metres (2,300 ft) pumping). Units 3 and 4 came online in 1999. The pump-turbines and motor-generators were supplied by Toshiba, and three of them were manufactured under Japanese supervision in Bulgaria. The upper basin for Chaira is formed by the Belmeken Dam which connects to the pumped storage plant by two headrace tunnels with a diameter of 4.2 metres (14 ft) and two penstocks with diameter 4.4 metres (14 ft), reducing to 4.2 metres (14 ft).[2] Outflow from the Belmeken reservoir supplies the Sestrimo Hydro Power Plant
References
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- Maritsa Iztok 2 - 1,470 MW
- Varna - 1,260 MW
- Maritsa Iztok 3 - 900 MW
- Bobov Dol - 630 MW
- Ruse Iztok - 600 MW
- Maritsa Iztok 1 - 500 MW
- Maritsa 3 - 240 MW
- Republika - 180 MW
- Sofia - 130 MW
- Sofia Iztok - 100 MW
- Belmeken–Sestrimo–Chaira Cascade - 1,575 MW (Chaira - 840 MW, Belmeken - 375 MW, Sestrimo - 240 MW, Momina Klisura - 120 MW)
- Dospat–Vacha Cascade - 500 MW (Orphey - 165 MW, Devin - 88 MW, Tsankov Kamak - 86 MW, Krichim - 80 MW, Teshel - 60 MW)
- Batak Cascade - 254 MW (Peshtera - 136 MW, Aleko - 71 MW, Batak - 47 MW)
- Kardzhali - 170 MW
- Gorna Arda - 160 MW
- Ivailovgrad - 110 MW
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