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IAEA Releases New Projections for Nuclear Power Through 2050

Vienna, Austria


The IAEA has released its latest projections for energy, electricity and nuclear power trends through 2050. The annual report offers a mixed estimate of nuclear power’s future contribution to global electricity generation, depending in part on whether significant new capacity can be added to offset potential reactor retirements.

The 39th edition of Energy, Electricity and Nuclear Power Estimates for the Period up to 2050 provides detailed global trends in nuclear power by region. Its projections1 for nuclear electrical generating capacity are presented as low and high estimates, reflecting different driving factors that have an impact on the worldwide deployment of this low carbon energy source.

The new projections to 2030 see generating capacity declining by some 8% in the low case and increasing by 25% in the high estimate. By 2050, it’s seen falling by 6% in the low scenario and rising by 80% in the high case. Compared with last year, the new estimates to 2050 are down by 33 GW(e) in the high case and up by 15 GW(e) in the low case.

The 2019 projections contain fewer uncertainties compared with previous years due to recent announcements on the future of the existing fleet in some regions and long term plans for expansion. Significant new capacity may be needed to offset possible reactor retirements due to age, competitiveness or other factors.

“Global electricity demand is expected to rise sharply in coming years as countries need more power for development,” said IAEA Deputy Director General Mikhail Chudakov, Head of the Department of Nuclear Energy. “Without a significant increase in the deployment of nuclear power, it will be difficult for the world to secure sufficient energy to achieve sustainable development and to mitigate climate change.”

In 2018, nuclear power produced about 10% of the world’s electricity, accounting for around one third of all low carbon electricity. As of today, the world’s 450 operating nuclear power reactors have a near record level of 399.7 GW(e) total net installed capacity.

In some regions, over the short term the low price of natural gas and the impact of subsidized renewable energy sources are expected to continue to affect nuclear power’s growth prospects. Still, interest in nuclear power remains strong in several regions, particularly in the developing world, and commitments agreed under the Paris Agreement and other initiatives have the potential to support its development.


1 The projections consist of both available capacity (currently supplying electricity to the grid) and installed nominal capacity (available, but not currently supplying electricity to the grid).


Last update: 03 Oct 2019

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