Nuclear power has evolved in Japan in a number of ways over the past few decades. In the 1950s and 1960s, Japan's nuclear power program was focused on the development of nuclear reactors for electricity generation. The first commercial nuclear power plant in Japan, the Tokai Nuclear Power Plant, was commissioned in 1966. By the end of the 1970s, Japan had 17 nuclear power plants in operation, with a total capacity of over 30,000 megawatts.
In the 1980s and 1990s, Japan's nuclear power program continued to grow, with the construction of new nuclear power plants and the development of new technologies. By the end of the 1990s, Japan had 54 nuclear power plants in operation, with a total capacity of over 50,000 megawatts.
The Fukushima Daiichi nuclear disaster in 2011 had a significant impact on Japan's nuclear power program. In the wake of the disaster, Japan's government announced a plan to phase out nuclear power by 2030. However, this plan has been met with opposition from some quarters, and it is not clear whether it will be implemented.
As of 2023, Japan has 10 nuclear power plants in operation, with a total capacity of over 30,000 megawatts. The future of Japan's nuclear power program is uncertain, but it is likely to continue to play a significant role in the country's energy mix.
Here are some of the key milestones in the evolution of nuclear power in Japan: