Changes

The plant was built between 1952 and 1956 and became operational in 1954. The plant underwent modernization 1997-2001 when it was taken over by [[Vattenfall]], and was later bought by [[PGNiG]]. The station has a heat generation capacity of 1,561 megawatts (MW) and an electric generation capacity of 350 MW. The most recent unit, unit 12, went into operation in 2009.<ref> {{cite web | url = http://termika.pgnig.pl/about-pgnig-termika/our-plants/ | title = Our Plants | accessdate = 2014-02-18 | author = PGNiG Termika | work = PGNiG Termika | language = Polish | quote = PGNiG TERMIKA owns five plants: HP Kawęczyn, CHP Pruszków, CHP Siekierki, CHP Żerań and HP Wola. They produce approximately 401 million GJ of heat which covers 70% of the demand in Warsaw and 60% in Pruszków, Piastów and Michałowice. }}</ref>