Where is the first nuclear power plant located?

The first nuclear power plant to generate electricity for a public power grid was located in Obninsk, in the Kaluga Oblast of Russia. It began operating in 1954 and is widely recognized as the world's first nuclear power station connected to a grid. The reactor was a Soviet research and demonstration project that showed nuclear energy could be used for peaceful electricity production. Although small by modern standards, the plant was historically important in the development of nuclear power. Obninsk remains a landmark in the history of science and energy technology.