Global nuclear capacity reached 383 gigawatts (GW) in 2015, driven primarily by nuclear additions in Asia. Currently, 31 countries have nuclear power programs, totaling 441 operating reactors. An additional 60 reactors are under construction in 15 countries, adding 59 GW of electricity generating capacity over the next decade. Plans to add another 90 reactors (76 GW) have been formally transmitted to the International Atomic Energy Agency (IAEA) by 8 countries.
Source: Today In Energy