Nuclear power

Fission-based nuclear power has historically been one of the largest contributors of carbon-free electricity globally. Their potential to contribute to power sector decarbonisation is significant.

At the same time, in many jurisdictions nuclear power has trouble competing against other, more economic alternatives, such as natural gas or modern renewables. Concerns over safety and broader public acceptance also remain an obstacle to development. 

	Nuclear	Hydropower and other renewables	Wind	Solar PV
2010-11	77	128	75	27
2012-13	79	93	91	40
2014-15	47	114	124	53
2016	26	73	115	90
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		"text": "Sources of new low-carbon generation capacity"
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		"text": "Expected annual average generation from final investment decisions for new low-carbon generation capacity"
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Note: Generation is based on the expected annualised output of sanctioned gross additions to capacity in a given year. Nuclear plant FIDs are based on reported construction starts.

Source: World Energy Investment 2017

The IEA, in close collaboration with the OECD Nuclear Energy Agency, works with countries around the world to analyse the cost of nuclear technologies, the place of nuclear power in competitive electricity markets, and its role in meeting long-term power sector decarbonisation objectives.

The IEA also closely follows research to develop nuclear fusion technology through the IEA’s Fusion Power Co-ordinating Committee (FPCC).

Our work on Nuclear