The data displays the number of operable nuclear reactors as of June 2018, by country. In the UK, 15 nuclear power reactors were in operation as of this time. Operable nuclear reactors are those connected to the grid.
Number of operable nuclear power plants by country In 1954, history was made when nuclear fission technology was approved for commercial purposes and the first nuclear power plant started operation in the Russian city of Obninsk. For the first time, it was possible to meet the demand of an increasingly energy-thirsty world – at a reasonable price, too.
