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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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IAEA again raises global nuclear power projections
Noting recent momentum behind nuclear power, the International Atomic Energy Agency has revised up its projections for the expansion of nuclear power, estimating that global nuclear operational capacity will more than double by 2050—reaching 2.6 times the 2024 level—with small modular reactors expected to play a pivotal role in this high-case scenario.
IAEA director general Rafael Mariano Grossi announced the new projections, contained in the annual report Energy, Electricity, and Nuclear Power Estimates for the Period up to 2050 at the 69th IAEA General Conference in Vienna.
In the report’s high-case scenario, nuclear electrical generating capacity is projected to increase to from 377 GW at the end of 2024 to 992 GW by 2050. In a low-case scenario, capacity rises 50 percent, compared with 2024, to 561 GW. SMRs are projected to account for 24 percent of the new capacity added in the high case and for 5 percent in the low case.
Ralph M. Rotty
Nuclear Science and Engineering | Volume 90 | Number 4 | August 1985 | Pages 467-474
Technical Paper | doi.org/10.13182/NSE85-A18496
Articles are hosted by Taylor and Francis Online.
The pattern of global electrification suggests that the global discharge of CO2 to the atmosphere is less, and will be increasingly less, than would be the case without the continuing shift toward use of electrical energy. Data show that the world has been moving steadily toward greater electrification. Each year electricity is used to perform a larger number of tasks, and the fraction of energy used in the form of electricity has increased whether in “good times” or in “bad times.” Scenarios that incorporate technological development, and therefore growth in electrification, yield slower growth in emissions of CO2, and consequently slower accumulation in the atmosphere. Increased world electrification slows the growth in CO2 for two reasons: 1. electrification may reduce total energy demand 2. electrification presents opportunities to supply the energy without using CO2-producing fuels. The large potential for slowing atmospheric CO2 accumulation by generating electricity with nonfossil technologies is demonstrated by the scenarios presented here.