Today, only eight countries are known to have a nuclear weapons capability. By contrast, 56 operate about 240 civil research reactors, over one thrid of these in developing countries. Now 31 countries host over 430 commercial nuclear power reactors with a total installed capacity of over 370,000 MWe (see linked table for up to date figures). This is more than three times the total generating capacity of France or Germany from all sources. About 70 further nuclear power reactors are under construction, equivalent to 20% of existing capacity, while over 160 are firmly planned, equivalent to half of present capacity.