截至2019年年底，全球在运机组443台，总装机容量超过3.92亿千瓦；全球在建核电机组54台，总装机容量超过57.4吉瓦。世界主要核电国家持续投入对第三代核电技术、小型模块化反应堆、先进核能堆型、聚变堆等方面的研发。世界核燃料循环前端环节供应能力总体过剩。世界主要能源/核电机构的预测数据表明，未来全球核电的装机容量会有显著的增长，到2050年核电装机规模将比现在增长60%～146%。
By the end of 2019，443 units were in operation worldwide，with a total installed capacity of over 392 gigawatts. There are 54 nuclear power units under construction in the world with a total installed capacity of 57.4 gigawatts. At present，major nuclear power countries in the world are continuously investing in the research and development of the third generation nuclear power technology，small modular reactors，advanced nuclear reactor types，fusion reactors，etc. The supply capacity of the first stage of the world nuclear fuel cycle is generally surplus. Forecast data from major energy/nuclear power institutions in the world show that the installed capacity of nuclear power in the world will increase significantly in the future，and the installed capacity of nuclear power will increase by 60%-146% by 2050.
