ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
September 2026
Nuclear Technology
August 2026
Fusion Science and Technology
Latest News
NRC accepts Ginna SLR application as Constellation seeks 20-year extension
The Nuclear Regulatory Commission has accepted Constellation’s subsequent license renewal application to extend operations at the Ginna nuclear power plant by another 20 years.
If approved, the Ontario, N.Y., facility’s operating license would be extended through September 18, 2049. The plant was first issued a 40-year license in 1969, followed by a 20-year renewal in 2004 that extended the license into 2029.
William V. Macnabb
Nuclear Technology | Volume 49 | Number 3 | August 1980 | Pages 435-442
Technical Paper | Fuel Cycle | doi.org/10.13182/NT80-A17691
Articles are hosted by Taylor and Francis Online.
A comparison has been made between a modest increase in fuel discharge burnup and repetitive end-of-cycle coastdowns as two near-term alternatives that may be used to improve utilization of resources for a pressurized water reactor on the once-through cycle. Four cases have been considered. The cases include two different burnup levels—present technology of 33 000 MWd/MTU and a 3000 MWd/MTU increase in design burnup to 36 000 MWd/MTU. At each burnup value a fuel cycle without coastdown and one with coastdown every cycle have been evaluated. For each of the four cases, computations have been made of uranium requirements, separative work requirements, and m/kWh(electric) costs. The analyses show that the improvements in resource utilization with end-of-cycle coastdown are modest (<2%). There may be little or no economic benefits. The gains from increased discharge burnup are primarily a reduced fuel cycle cost. Since individual utilities may not see benefits in uranium or separative work savings per se that do not also include dollar savings, implementation of coastdown on a nationwide basis may be difficult.