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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
H. H. Hummel, W. M. Stacey, Jr.
Nuclear Science and Engineering | Volume 54 | Number 1 | May 1974 | Pages 35-46
Technical Paper | doi.org/10.13182/NSE74-A23391
Articles are hosted by Taylor and Francis Online.
A study of the sensitivity of the integral properties of the plutonium-fueled fast-reactor critical assembly ZPR-6, Assembly 7 to uncertainties in the nuclear data has been performed with the aid of the VARI-1D variational sensitivity code; ENDF/B Version III was taken as a reference nuclear data base. The effect of 10% cross-section changes, which were correlated over the entire energy range, was analyzed, and allowed data uncertainties compatible with given uncertainties in integral parameters were established. Estimated uncertainties in important cross sections were considered, and the effect of different assumptions of the correlation in energy of the data uncertainties was examined. The effect of data changes among ENDF/B Versions I, II, and III was also analyzed. The most important data uncertainties are in the fission cross section of 239Pu and in the capture cross section of 238U, while the most important uncertainties in integral properties are in sodium void effect, breeding ratio, and keff. (The Doppler coefficient was not studied in the present work.)