[http://en.wikipedia.org/wiki/Nuclear_power_plant Nuclear (fission) power stations], that is excluding the contribution from [http://en.wikipedia.org/wiki/Nuclear_propulsion naval nuclear fission reactors], provided about 5.7% of the world's energy and 13% of the world's electricity, in 2012. In 2013, the [http://en.wikipedia.org/wiki/International_Atomic_Energy_Agency IAEA] report that there are 437 operational nuclear power reactors, in 31 countries. Although not every reactor is producing electricity. In addition, there are approximately 140 naval vessels using [http://en.wikipedia.org/wiki/Nuclear_propulsion nuclear propulsion] in operation, powered by some 180 reactors. | [http://en.wikipedia.org/wiki/Nuclear_power_plant Nuclear (fission) power stations], that is excluding the contribution from [http://en.wikipedia.org/wiki/Nuclear_propulsion naval nuclear fission reactors], provided about 5.7% of the world's energy and 13% of the world's electricity, in 2012. In 2013, the [http://en.wikipedia.org/wiki/International_Atomic_Energy_Agency IAEA] report that there are 437 operational nuclear power reactors, in 31 countries. Although not every reactor is producing electricity. In addition, there are approximately 140 naval vessels using [http://en.wikipedia.org/wiki/Nuclear_propulsion nuclear propulsion] in operation, powered by some 180 reactors. |