Kozjak Hydro Power Plant

{{Infobox dam

| name = Kozjak Dam
Брана Козјак
Diga e Kozjakut

| name_official =

| image = Kozyak-ot-foynik.jpg

| image_size =

| image_caption = Kozjak dam and lake, as seen from the Fojnik peak

| image_alt =

| location_map = North Macedonia

| location_map_size =

| location_map_caption =

| location_map_alt =

| coordinates = {{WikidataCoord|display=it}}

| country = North Macedonia

| location = Kozjak

| purpose = Flood control, power

| status = O

| construction_began = 1994

| opening = {{Start date and age|2000}}

| demolished =

| cost =

| owner = Power plants of North Macedonia (ESM)

| dam_type = Embankment, rock-fill

| dam_crosses = Treska

| dam_length =

| dam_height =

| dam_height_foundation= {{Convert|130|m|ft|abbr=on}}

| dam_height_thalweg = {{Convert|114|m|ft|abbr=on}}

| dam_elevation_crest =

| dam_width_crest =

| dam_width_base =

| dam_volume =

| spillway_count =

| spillway_type =

| spillway_capacity =

| res_name =

| res_capacity_total = {{Convert|380000000|m3|acre.ft|abbr=on}}

| res_capacity_active =

| res_capacity_inactive=

| res_catchment =

| res_surface = {{Convert|13.5|km2|mi2|abbr=on}}

| res_max_length = {{Convert|32|km|mi|abbr=on}}

| res_max_width = {{Convert|400|m|ft|abbr=on}}

| res_max_depth =

| res_elevation =

| res_tidal_range =

| plant_name =

| plant_coordinates =

| plant_operator =

| plant_commission = 2004

| plant_decommission =

| plant_type =

| plant_turbines = 2 x 41 MW Francis-type

| plant_hydraulic_head =

| plant_capacity = 82 MW

| plant_annual_gen =

| website =

| extra = {{Infobox mapframe |wikidata=yes |zoom=11 |coord={{WikidataCoord|display=i}}}}

}}

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 impounded reservoir is stretched along municipalities of Želino, Brvenica and Makedonski Brod. The constructed Kozjak Dam is the tallest in the country at {{Convert|130|m|ft|abbr=on}}. It is located in the western part of the country, in the village of Lukovica, part of Želino municipality. The primary purpose of the dam is flood control but it also serves for power generation.{{cite book | url=https://books.google.com/books?id=4Z3vAgAAQBAJ&q=kozyak+dam&pg=PA344 | title=Dams and Appurtenant Hydraulic Structures, 2nd edition | publisher=CRC Press | year=2014 | pages=344 | isbn=978-1138000063}}

The power plant has two turbines with a nominal capacity of 41 MW each[http://www.ebrdrenewables.com/sites/renew/Lists/Projects/DispForm.aspx?ID=618&Source=http%3A%2F%2Fwww%2Eebrdrenewables%2Ecom%2Fsites%2Frenew%2Fcountries%2FFYR%2520Macedonia%2Fdefault%2Easpx Kozjak Hydro Power Plant] having a total capacity of 82 MW.

The lake is {{convert|32|km|mi|abbr=on}} long, with maximum depth of {{convert|130|m|foot|abbr=on}}. 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.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}}