2K
At 27 June 2026, 73 nuclear power reactors with a total capacity of 75.5 GW(e) were under construction in 17 countries.
https://pris.iaea.org/PRIS/WorldStatistics/UnderConstructionReactorsByCountry.aspx
Power reactors are under construction in the following countries
- Argentina 1
- Bangladesh 2
- Brazil 1
- Canada 1
- China 35
- Egypt 4
- Hungary 1
- India 8
- Iran 1
- Japan 2
- Korea, Republic of 2
- Pakistan 1
- Russia 5
- Slovakia 1
- Türkiye 4
- Ukraine 2
- United Kingdom 2
Total 73
Of the 73 nuclear power reactors under construction:
- 63 are Pressurised Water Reactors (PWRs)
- 3 are Pressurised Heavy Water Reactors (PHWRs) being built in India
- 4 are Fast Breeder Reactors (FBRs) being built in Russia and India
- 3 are Boiling water reactors (BWR): of these 2 are in Japan but construction currently suspended