Nuclear Power in the World Today

The first commercial nuclear power stations started operation in the 1950s.There are now some 436 commercial nuclear power reactors operating in 30 countries, with 372,000 MWe of total capacity.They provide about 15% of the world's electricity as continuous, reliable base-load power, and their efficiency is increasing.56 countries operate a total of about 250 research reactors and a further 220