Reactor types, world-wide

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End of June 2010, 438 nuclear power plants were in operation and 61 under construction world-wide. Most of the nuclear power plants were equipped with light water reactors, (see 'pressurized water reactors' and 'boiling water reactors').

Reactor type	In operation		Under construction
	Number	net capacity MWe	Number	net capacity MWe
PWR	266	245,519	53	51,821
BWR	92	83,951	3	3,925
AGR, GGR	18	8,949	-	-
CANDU/D2O-PWR	46	22,840	2	894
RBMK	15	10,219	1	915
SNR	1	560	2	1.274
total	438	372,038	61	58,829