Unlock stock picks and a broker-level newsfeed that powers Wall Street. Upgrade Now Tokyo - Delayed Quote • JPY Tokyo Electric Power Company Holdings, Incorporated (9501.T) Follow Compare 404.50 +2.70 +(0.67%) As of 11:30:00 AM GMT+9. Market Open. All News Press Releases SEC Filings All SEC Filings Corporate Changes & Voting Matters Periodic Financial Reports Proxy Statements Tender Offer/Acquisition Reports Offering Registrations Tepco Falls on Risk of Delay to Restart World’s Top Atomic Plant (Bloomberg) -- Tokyo Electric Power Co. slumped the most in almost five months after the utility said it would delay upgrades at reactors, risking to push back plans to restart the world’s biggest nuclear power plant.Most Read from BloombergThe Trump Administration Takes Aim at Transportation ResearchShelters Await Billions in Federal Money for Homelessness ProvidersNYC’s Congestion Pricing Pulls In $48.6 Million in First MonthNew York’s Congestion Pricing Plan Faces Another Legal ShowdownNYC to Revival of Japan’s Biggest Nuclear Plant Faces Last Hurdle (Bloomberg) -- After more than a decade of inactivity, Japan’s biggest nuclear power plant is ready to restart — but it faces an indefinite wait.Most Read from BloombergTrump to Halt NY Congestion Pricing by Terminating ApprovalAirbnb Billionaire Offers Pre-Fab Homes for LA Fire VictimsSorry, Kids: Disney’s New York Headquarters Is for Grown-UpsTrump Targets $128 Billion California High-Speed Rail ProjectChild Migrant Watchdog Gutted in DOGE CutsThe Kashiwazaki Kariwa plant on the country’s west TEPCO ex-chair at time of Fukushima nuclear disaster dies at 84 while on trial over responsibility Tokyo Electric Power Company Holdings' former chairperson, who led the emergency response after a meltdown at its Fukushima Daiichi nuclear plant and was accused of being responsible for failing to prevent the disaster as top management, has died, with his trials still pending. Tsunehisa Katsumata died on Oct. 21, TEPCO said Thursday, without providing further details including the cause of his death. Katsumata was TEPCO chair when Fukushima Daiichi was hit by a magnitude 9.0 earthquake and tsunami in March 2011 and suffered triple meltdowns. A decade after Fukushima, Japan still struggles with its energy future Ten years after an earthquake and tsunami sparked a crisis in the east of Japan, the country’s electricity generation profile has shifted in favour of fossil fuels. Will its net-zero emissions goal change that? A robot begins removal of melted fuel from the Fukushima nuclear plant. It could take a century A long robot entered a damaged reactor at Japan's Fukushima nuclear power plant on Tuesday, beginning a two-week, high-stakes mission to retrieve for the first time a tiny amount of melted fuel debris from the bottom. Specialists hope the robot will help them learn more about the status of the cores and the fuel debris. Here is an explanation of how the robot works, its mission, significance and what lies ahead as the most challenging phase of the reactor cleanup begins. What is the fuel debris? A robot has begun a 2-week mission to retrieve melted fuel from the damaged Fukushima nuclear plant An extendable robot began on Tuesday a two-week mission to retrieve the first sample of melted fuel debris from inside one of three damaged reactors at the Fukushima Daiichi nuclear power plant. Highly radioactive fuel and other materials in the reactors melted when a massive earthquake and tsunami in 2011 damaged the plant's cooling systems. The plant's operator, Tokyo Electric Power Company Holdings, has previously used small robots to examine the inside of the reactors, but this is the first time for it to collect a sample of the melted debris in what will mark the start of the most challenging part of the plant's decadeslong decommissioning. Japan PM to discuss Tepco nuclear plant restart with ministers Tepco has been working towards gaining local permission to restart the nuclear facility since its operational ban was lifted in December. A robot's attempt to get a sample of the melted fuel at Japan's damaged nuclear reactor is suspended An attempt to use an extendable robot to remove a fragment of melted fuel from a wrecked reactor at Japan’s tsunami-hit Fukushima Daiichi nuclear power plant was suspended Thursday due to a technical issue. The collection of a tiny sample of the debris inside the Unit 2 reactor’s primary containment vessel would start the fuel debris removal phase, the most challenging part of the decades-long decommissioning of the plant where three reactors were destroyed in the March 11, 2011, magnitude 9.0 earthquake and tsunami disaster. The work was stopped when workers noticed that five 1.5-meter (5-foot) pipes used to maneuver the robot were placed in the wrong order and could not be corrected within the time limit for their radiation exposure, the plant operator Tokyo Electric Power Company Holdings said. The world’s biggest power companies in 2018 China’s state-owned electric utility State Grid, with revenue of $315bn, is by far the world’s biggest power company. Out of the remaining nine biggest companies engaged in the power business, six are in Europe, two are in Asia and one is based in the US. Power-technology.com lists the world’s biggest power companies based on 2017 revenues. A robot will soon try to remove melted nuclear fuel from Japan's destroyed Fukushima reactor The operator of Japan's destroyed Fukushima Daiichi nuclear power plant demonstrated Tuesday how a remote-controlled robot would retrieve tiny bits of melted fuel debris from one of three damaged reactors later this year for the first time since the 2011 meltdown. Tokyo Electric Power Company Holdings plans to deploy a “telesco-style” extendable pipe robot into Fukushima Daiichi No. 2 reactor to test the removal of debris from its primary containment vessel by October. During the demonstration at the Mitsubishi Heavy Industries' shipyard in Kobe, western Japan, where the robot has been developed, a device equipped with tongs slowly descended from the telescopic pipe to a heap of gravel and picked up a granule. IAEA team inspects treated radioactive water release from Japan's Fukushima nuclear plant A team of experts from the U.N. nuclear agency inspected the tsunami-hit Fukushima Daiichi nuclear power plant Wednesday for a review of its discharge of treated radioactive wastewater into the Pacific. The International Atomic Energy Agency inspection was part of a four-day visit to Japan that started Tuesday, its second since the water discharge began last August despite strong protests from fishing groups and neighboring China, which has banned Japanese seafood. The IAEA team will issue a report later. Operator of Japan's wrecked Fukushima Daiichi nuclear plant prepares to restart another plant The operator of the tsunami-wrecked Fukushima Daiichi nuclear power plant said on Monday that it has obtained permission from safety regulators to start loading atomic fuel into a reactor at its only operable plant in north-central Japan, which it is keen to restart for the first time since the 2011 disaster. Tokyo Electric Power Company Holdings, or TEPCO, said that it obtained the Nuclear Regulation Authority’s approval to load nuclear fuel into the No. 7 reactor at its Kashiwazaki-Kariwa nuclear power plant in Niigata and it was to start the process later Monday. The loading of the 872 sets of fuel assemblies is expected to take a few weeks. 15 Countries with the Largest Thorium Reserves in the World In this article, we will be taking a look at the 15 countries with the largest thorium reserves in the world. If you want to skip our detailed analysis, you can go directly to see the 5 Countries with the Largest Thorium Reserves in the World. Thorium is a naturally occurring, slightly radioactive element that […] Japan Could Be Nearing Restart of World's Largest Nuclear Power Plant The world’s largest nuclear power plant, among the facilities taken offline after the 2011 Fukushima disaster in Japan, could be nearing a restart. Japanese media reported that on March 14, […] Conditions inside Fukushima's melted nuclear reactors still unclear 13 years after disaster struck Japan on Monday marked 13 years since a massive earthquake and tsunami hit the country’s northern coasts. Nearly 20,000 people died, whole towns were wiped out and the Fukushima Daiichi nuclear power plant was destroyed, creating deep fears of radiation that linger today. A magnitude 9.0 earthquake struck on March 11, 2011, causing a tsunami that battered northern coastal towns in Iwate, Miyagi and Fukushima prefectures. Performance Overview Trailing total returns as of 3/7/2025, which may include dividends or other distributions. Benchmark is Nikkei 225 Return 9501.T Nikkei 225 YTD -14.84% -7.23% 1-Year -48.99% -6.54% 3-Year +7.29% +46.73%