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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.
Chuande Yang, Pierre Benoist
Nuclear Science and Engineering | Volume 86 | Number 1 | January 1984 | Pages 47-62
Technical Paper | doi.org/10.13182/NSE84-A17969
Articles are hosted by Taylor and Francis Online.
Scattering anisotropy is often taken into account, in an isotropic formalism, by a transport correction. This correction, which, even in a homogeneous medium, is known to be false in a multigroup theory, is always incorrect for the calculation of neutron leakages in a lattice. The method presented here allows calculation of the buckling-independent diffusion coefficients in a Wigner-Seitz cell, for a linearly anisotropic scattering law. It allows testing of the degree of approximation of the transport correction in various types of lattices, and shows that the axial coefficient may be strongly underestimated in certain cases. This method also allows testing of the simple formulas presented in the past for diffusion coefficients, which lead to good results. The problem of the coupling between energy groups, which appears in the calculation of diffusion coefficients, is also analyzed by the present method; it usually appears to be weak.