Kozjak Hydro Power Plant

Kozjak Hydro Power Plant is a large hydroelectric power plant on the river Treska which creates an artificial lake Kozjak, the largest in North Macedonia. The dam which creates the reservoir, Kozjak Dam is the tallest in the country at 130 m (430 ft). It is located in the western part of the country in the municipality of Makedonski Brod. The primary purpose of the dam is flood control but it also serves for power generation.[1]

Kozjak Dam
Kozjak dam and lake, as seen from the Fojnik peak
Location of Kozjak Dam in North Macedonia
CountryNorth Macedonia
LocationKozjak
Coordinates41°52′40.37″N 21°11′33.59″E
PurposeFlood control, power
StatusOperational
Construction began1994
Opening date2000 (2000)
Owner(s)Power plants of North Macedonia (ESM)
Dam and spillways
Type of damEmbankment, rock-fill
ImpoundsTreska
Height (foundation)130 m (430 ft)
Height (thalweg)114 m (374 ft)
Reservoir
Total capacity380,000,000 m3 (310,000 acre⋅ft)
Surface area13.5 km2 (5.2 sq mi)
Maximum length32 km (20 mi)
Maximum width400 m (1,300 ft)
Commission date2004
Turbines2 x 41 MW Francis-type
Installed capacity82 MW

The power plant has two turbines with a nominal capacity of 41 MW each[2] having a total capacity of 82 MW.

The lake is 32 km (20 mi) long, with maximum depth of 130 m (430 ft). The maximum elevation of the lake is 469.9 m and it has a capacity of about 380 million m³ of water. There is an abundance of fish in the lake.

The construction of the dam started in August 1994 and it was complete in 2000. The reservoir started filling in May 2003, and the two power generators finally operated in July and September 2004.[3]

References

  1. Dams and Appurtenant Hydraulic Structures, 2nd edition. CRC Press. 2014. p. 344. ISBN 978-1138000063.
  2. Kozjak Hydro Power Plant
  3. Dams And Reservoirs, Societies And Environment in The 21st Century, Luis Berga; Taylor & Francis, 2006; ISBN 0-415-40423-1, ISBN 978-0-415-40423-5
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