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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Nuclear Science and Engineering
July 2026
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May 2026
Latest News
FERC approves Constellation waiver request on Crane restart
The Federal Energy Regulatory Commission has approved Constellation’s waiver request to transfer PJM capacity interconnection rights from one of its gas- and oil-powered plants to its Crane nuclear power plant (formerly Three Mile Island-1).
While Constellation executives previously said that an unsuccessful waiver request wouldn’t have prevented the Middletown, Pa., plant from restarting as soon as 2027, it could have impacted whether Crane could fully deliver power to the grid once it is on line. The decision, issued by FERC on June 1, likely helps facilitate Constellation’s path forward for the plant’s restart.
Technical Session
Monday, September 15, 2025|1:00–2:40PM CDT|Grand Salon AB
Session Chair:
Satoshi Gunji
Alternate Chair:
Brittany M. Williamson
Session Organizer:
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The Pre-service Inspections for the Static Experiment Critical Facility (STACY)
1:00–1:20PM CDT
Kenta Hasegawa (JAEA), Masakazu Seki (JAEA), Eiju Aizawa (JAEA), Masato Sumiya (JAEA), Tomoki Yoshikawa (JAEA), Tomoyuki Maekawa (JAEA), Junichi Ishii (JAEA), Shouhei Araki (JAEA), Kazuhiko Izawa (JAEA), Satoshi Gunji (JAEA)
Paper
Design of Heterogenous Core Configurations with Concrete Rods in the Modified STACY Facility
1:20–1:40PM CDT
B. Dechenaux (ASNR), M. Brovchenko (ASNR), S. Gunji (JAEA), S. Araki (JAEA), K. Suyama (JAEA)
Critical Experiment Analyses in the Modified STACY Core Simulating Fuel Debris
1:40–2:00PM CDT
Shigeki Shiba (Nuclear Regulatory Authority of Japan), Satoshi Gunji (JAEA), Kazuhiko Izawa (JAEA)
Experiments on Concrete-Loaded Core in the Modified STACY
2:00–2:20PM CDT
Shouhei Araki (JAEA), Yu Arakaki (JAEA), Tomoyuki Maekawa (JAEA), Yutaka Kamikawa (JAEA), Kenta Hasegawa (JAEA), Tomoki Yoshikawa (JAEA), Yuta Tada (JAEA), Masato Sumiya (JAEA), Masakazu Seki (JAEA), Eiju Aizawa (JAEA), Junichi Ishii (JAEA), Kazuhiko Izawa (JAEA), Daiki Shiba (NRA), Shigeki Shiba (NRA), Satoshi Gunji (JAEA)
Studies of Nuclear Criticality Safety of Fuel Debris using the Modified STACY Critical Assembly
2:20–2:40PM CDT
Gunji S. (JAEA), Araki S. (JAEA), Yoshikawa T. (JAEA), Arakaki Y. (JAEA), Aizawa E. (JAEA), Seki M. (JAEA), Ishii J. (JAEA), Izawa K. (JAEA), Shiba S. (NRA), Iwahashi D. (NRA)
