WWER-1000 (or VVER-1000 as a direct transliteration of Russian ÂÂÝÐ-1000) is a 1000 MW Russian nuclear power reactor of PWR type. Pictured: Izhorskie Zavody machine-building enterprise specialized in heavy machine building including VVER-1000 reactor shells for nuclear power plants in Russia,India,Iran. Pictured:Workshop of reactor shells assembling.