Countries ranked by nuclear share of electricity

Only around 30 countries operate commercial nuclear reactors. This ranking shows how much of each one's electricity they supply. France has long been the outlier, with roughly two-thirds of its power from nuclear; several Central and Eastern European countries get a third to a half.

Nuclear power is low-carbon but not renewable, so it does not count toward the renewable share.

Ranking rule. Countries and territories that generate less than 1 TWh of electricity a year (mostly small islands) are left out, because one diesel generator or one solar farm can swing their shares by tens of points. Values older than 2020 are also excluded. Only countries that operate nuclear reactors are listed.