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November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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.
William B. Terney, R. Srivenkatesan
Nuclear Science and Engineering | Volume 53 | Number 3 | March 1974 | Pages 337-347
Technical Note | doi.org/10.13182/NSE74-A23362
Articles are hosted by Taylor and Francis Online.
The suitability of flux- and bilinearly weighted collapsing schemes for fast-reactor transient analyses was studied. Comparisons of few-group transient results were made with “exact” 26-group and three-trial-function energy synthesis results. Normal flux weighting was not satisfactory even when up to 12 groups were used. Bilinear schemes with only 6 or 8 groups, using unperturbed fluxes and perturbed adjoints (or vice versa), were found to be satisfactory. When reactivities were less than one dollar, unperturbed fluxes and adjoints were sufficient to give satisfactory results. With bilinear group collapsing, it is necessary to consider discontinuities arising at interfaces between regions where the flux and adjoint spectra are different and to use modified continuity conditions.