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Keyword：Shimane Nuclear Power Station Unit 2
Shimane Nuclear Power Station Unit 2 Resumes Power Generation
Chugoku Electric Power Co. reported on August 19 that Unit 2 of the Shimane Nuclear Power Station resumed power generation at 2:00 p.m. that day through generator synchronization and began supplying electricity to the grid. Unit 2 of the Shimane Nuclear Power Station uses a boiling water reactor with a rated generating capacity of 820,000 kilowatts. Chugoku Electric Power Co. stated that it will prioritize safety, conduct comprehensive inspections of equipment operating conditions, and prepare for the unit to resume commercial operation as scheduled on September 16. ...
2026-08-19
Shimane Nuclear Power Station Unit 2 restarted and reached criticality
Chugoku Electric Power Co. announced on August 13 that it started up the reactor of Unit 2 at the Shimane Nuclear Power Station at 10:00 that day, and the unit reached a critical state at 12:14. Unit 2 of the Shimane Nuclear Power Station is a boiling water reactor with a rated electrical output of 820,000 kilowatts. Criticality refers to the state in which nuclear fission reactions in the reactor core can be sustained, and is one of the key milestones in the unit restart process. According to the plan, the unit will resume power generation, i.e., synchronize the generator to the grid, on August 18, 2026, and is expected to resume commercial operation on September 16, 2026. Chugoku Electric Power Co. stated that it will continue to prioritize safety and steadily advance all subsequent procedures.
2026-08-13
Shimane Nuclear Power Station Unit 2 completes containment vessel-related repairs, scheduled to resume commercial operation on the 16th of next month
The Shimane Nuclear Power Station Unit 2, located in Matsue City, Japan, is scheduled to resume commercial operation next month. Recently, part of the reactor containment vessel repair work at the unit was opened to the public, showcasing key construction steps before the resumption of operation. Unit 2 of the Shimane Nuclear Power Station resumed operation in December two years ago. Since February this year, the unit has been shut down for routine operational inspections. In accordance with relevant legal requirements, nuclear power units must undergo equipment disassembly inspections and replacement of related components within 13 months after the previous inspection is completed. On August 3, a dedicated crane was used on site to lift a cover weighing approximately 60 tons to the top of the reactor containment vessel. Workers completed the tightening of 120 bolts that day...
2026-08-13
Shimane Nuclear Power Station Unit 2 scheduled inspection completion date moved up to September 16
Chugoku Electric Power Co., Inc. announced on August 5 that the schedule for the 18th periodic utility inspection of Shimane Nuclear Power Station Unit 2 has been revised, with the inspection completion date moved up from September 17, 2026 to September 16, and the power generation resumption date moved up from August 19 to August 18. Shimane Nuclear Power Station Unit 2 is a boiling water reactor unit with a rated electrical output of 820 MW. The unit was shut down on February 9, 2026 and entered its 18th periodic utility inspection. The reason for this adjustment is that, during the reactor start-up preparation work, the procurement of the nitrogen gas source used to fill the reactor containment vessel was completed earlier than planned, allowing the related work to be advanced accordingly...
2026-08-05