Unipro (АО Юнипро, former names: E.ON Russia, The Fourth Generation Company of the Wholesale Electricity Market or OGK-4) is a Russian power generation company formed by merger of five generation companies.

[3] General Director — Maxim Shirokov[4] Unipro was founded in 2006 with the merger of the following power plants: The installed capacity of all five thermal power plants is about 10,296 MW, which comprises about 5% of the generating capacity of RAO UES.

According to the current investment program, there are plans to increase the original capacity of the power plants by 9.03GW to more than 11GW in 2011 with spending for these purposes by US$2.89billion.

[5] In April 2023, the Russian Federal Agency for State Property Management took temporary control of assets belonging to Unipro in retaliation for seizure of Russian assets abroad.

[2] Electricity generation by power plants belonging to the company:[6]