9501.T
Tokyo Electric Power Company Holdings,Incorporated
プライム · 電気・ガス業 · 電気・ガス · JP
JPY 569.50
+0.96%Aug 31, 2026, 06:45 UTC
Japan began its 23rd release of nuclear-contaminated wastewater from the Fukushima Daiichi Nuclear Power Plant into the ocean, operated by TEPCO, releasing about 7,800 tonnes containing approximately 1.2 trillion becquerels of tritium.
Source:Aug 29, 2026, 07:26 UTC
The Japanese government and Tokyo Electric Power Company Holdings plan to establish a public-private-academic consortium by fiscal 2026 to apply physical AI to decommissioning work at the Fukushima Daiichi nuclear plant.
Source:Aug 28, 2026, 09:00 UTC
Tokyo Electric Power Company Holdings (TEPCO) has begun considering bidding for an offshore wind power project off Choshi, Chiba Prefecture, and its subsidiary TEPCO Renewable Power has started an environmental impact assessment in the sea area where Mitsubishi Corporation withdrew in August 2025.
Source:Aug 28, 2026, 02:19 UTC
Tokyo Electric Power Company Holdings announced on August 28 that it will relocate its headquarters within Uchisaiwaicho, Chiyoda Ward, Tokyo, to the new Shinkobashi Building, with the move starting in September and completed by December 1.
Source:Aug 27, 2026, 09:35 UTC
Tokyo Electric Power Company Holdings announced on August 27 that it will abolish its third-party committee 'Nuclear Reform Monitoring Committee' effective September 30, citing that its purpose has been largely achieved.
Source:Aug 25, 2026, 09:27 UTC
Tokyo Electric Power Company Holdings, JR East, Tohoku Electric Power, and the Organization for Employment of the Elderly, Persons with Disabilities and Job Seekers signed a comprehensive partnership agreement on August 25, 2026, to jointly develop training curricula for infrastructure personnel, including high-voltage electrical equipment technicians, instructors, and students, and to support human resource development for small and medium-sized enterprises.
Source:Aug 25, 2026, 05:01 UTC
The Japanese government decided at a ministerial meeting at the Prime Minister's Office to reuse low-radiation decontaminated soil at national government facilities in Saitama and Sendai cities, marking the first such use outside Tokyo.
Source:Aug 24, 2026, 10:34 UTC
Three years after the start of the ocean release of treated water from the Fukushima Daiichi nuclear plant, storage volume has decreased by only 7% due to continued generation from debris, casting doubt on the 2051 decommissioning target.
Source:Aug 24, 2026, 04:54 UTC
Tokyo Electric Power Holdings, Tokyo Gas, and NTT announced on August 24 that their subsidiaries will jointly inspect infrastructure under bridges using drones to improve efficiency.
Source:Aug 23, 2026, 00:55 UTC
A magnitude 5.9 earthquake struck southern Ibaraki Prefecture, Japan, injuring more than 10 people and disrupting train services.
Aug 17, 2026, 05:56 UTC
Tokyo Electric Power Company Holdings Inc. completed the fourth round of treated water release into the Pacific Ocean from the Fukushima No. 1 nuclear power plant for fiscal 2026, discharging about 7,800 tons of water containing radioactive tritium.
Source:Aug 12, 2026, 08:12 UTC
Tokyo Electric Power Company Holdings and Japan Atomic Power Company requested eight electric power companies to consider transporting spent nuclear fuel to the interim storage facility in Mutsu City, Aomori Prefecture.
Source:Aug 7, 2026, 10:07 UTC
Mutsu City Mayor Tomoya Yamamoto informed Tokyo Electric Power Company Holdings and Japan Atomic Power that he accepts consideration of accepting spent nuclear fuel from other power companies into the interim storage facility in Mutsu City, Aomori Prefecture.
Source:Aug 5, 2026, 20:00 UTC
From February 28 to July 5, oil-fired thermal power generation in the Tokyo metropolitan area was zero for about four months, following the restart of Kashiwazaki-Kariwa nuclear power plant unit 6.
Source:Jul 29, 2026, 07:30 UTC
Tokyo Electric Power Company Holdings reported a consolidated ordinary profit of 11.4 billion yen for the first quarter of fiscal year ending March 2027 (April-June 2026), down 88.7% year-on-year.
Jul 28, 2026, 06:45 UTC
Tokyo Electric Power Company Holdings announced on July 28, 2026 that it will not transport spent nuclear fuel from its Kashiwazaki-Kariwa Nuclear Power Plant to Mutsu City, Aomori Prefecture during the first half of fiscal year 2026 (April-September), after Aomori Governor Soichiro Miyashita indicated in late March that he would not accept the fuel.
Source:Jul 22, 2026, 09:21 UTC
Tokyo Electric Power Company Holdings' president Tomoaki Kobayakawa told the Nuclear Regulation Authority that the company plans to consult with the authority around autumn 2026 regarding a reorganization of the Fukushima Daiichi nuclear decommissioning operations.
Source:Jul 16, 2026, 08:31 UTC
Tokyo Electric Power Company Holdings announced that its technology to reuse waste heat from data centers in nearby factories was selected for a support program by the Tokyo Metropolitan Government, receiving up to 520 million yen in subsidies.
Source:Jul 15, 2026, 09:00 UTC
Eight major Japanese electric power companies, including Tokyo Electric Power Company Holdings, will newly build or expand substations at 30 locations nationwide to strengthen the power transmission grid for data centers.
Source:Jul 14, 2026, 05:10 UTC
Kyoto District Court rejected a lawsuit by about 3,400 residents of Kyoto and Shiga prefectures seeking an injunction to stop operations of Kansai Electric Power's Oi nuclear power plant units 3 and 4.
Source:Jun 24, 2026, 23:59 UTC
Cameco is increasing its share in the Cigar Lake Operation to approximately 57.4% by acquiring over half of TEPCO's 5% stake, with Orano receiving an additional 2.1% stake.
Source:Jun 4, 2026, 01:59 UTC
TEPCO Solution Advance Co. and Accenture announced a strategic collaboration to reinvent its operating model by embedding AI.
Source:Jun 2, 2026, 15:25 UTC
Cameco Corporation is increasing its stake in the Cigar Lake uranium mine to 57.418% through a deal with TEPCO.
Source:Jun 2, 2026, 08:22 UTC
Keisuke Yokoo has been nominated as the next chairman of Tokyo Electric Power Co., with formal appointment expected at the annual shareholders' meeting later this month.
Source:Jun 1, 2026, 10:30 UTC
Cameco and Orano Canada Inc. agreed to acquire TEPCO Resources Inc.'s 5% participating interest in the Cigar Lake Joint Venture, increasing Cameco's ownership stake in the Cigar Lake uranium mine to 57.418%.