^PGNiG Termika. "Our Plants". PGNiG Termika (in Polish). Retrieved 2014-02-18. 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.