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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Latest News
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.
D. R. Harris, V. Prescop
Nuclear Science and Engineering | Volume 37 | Number 2 | August 1969 | Pages 171-179
Technical Paper | doi.org/10.13182/NSE69-A20675
Articles are hosted by Taylor and Francis Online.
A reactor can be analyzed as a multiplicative stochastic process or, approximately, as a deterministic process. When feedback is present, the stochastic and deterministic analyses can differ qualitatively as well as quantitatively, as is illustrated by the concept of stability. In the present study, a stochastic model of a nuclear power reactor with 135Xe, 135I, and control feedback is considered as an example of a nonlinear stochastic process. The values of variances and covariances are calculated from the first- and second-moment equations, using an iterative procedure. Numerical criteria for the value of the feedback coefficient for marginal stationarity of the stochastic model are compared with the corresponding criteria for the stability of the corresponding linearized deterministic model and found to be identical, within eight significant figures.
