The discussions on constructing a second nuclear power plant started in the early 1970s. The Belene site was approved for the construction of a second Bulgarian NPP by a Council of Ministers decree on 20 March 1981. The site was handed to the Ministry of Economics on 31 December 1981 and the documentation for the construction site's preparation was prepared in late 1980 and early 1981 by Energoproekt Sofia. The site's preparation in accordance with the draft projects began in the early 1981.