Tokyo Electric Power Company Holdings, Incorporated

Tokyo Electric Power Company Holdings, Incorporated This is the offcial English page of Tokyo Electric Power Company Holdings, Incorporated.

Tokyo Electric Power Company Holdings, Incorporated is Japan's largest power company, supplying energy to the greater Kanto area, including Japan's two most populous cities, Tokyo and Yokohama. Its 35,000 employees are committed to providing safe, reliable power to its 28.8 million customers, diversifying energy resources to ensure sustainability, and contributing to economic growth while fully meeting its responsibilities after the Fukushima Daiichi accident.

[This way to Oze! Vol.70: The Four Seasons of Oze]Oze is the largest high-altitude marshland on the main island of Honsh...
13/05/2026

[This way to Oze! Vol.70: The Four Seasons of Oze]

Oze is the largest high-altitude marshland on the main island of Honshu, located at an elevation of around 1,400 meters. Because cold air tends to accumulate, spring arrives late, summers are short, and autumn arrives early and deepens quickly. Another characteristic is that seasonal changes are often signaled more by changes in plant life than by temperature. In addition to conveying the sense of the four seasons, we would also like to provide guidance on appropriate clothing, keeping in mind the mountain climate.

In Oze, spring extends from early May through June. Temperatures can drop to as low as -5°C in the mornings and evenings, so it is advisable to wear long-sleeved wool clothing, as well as lightweight down jackets, and windproof and waterproof outerwear and pants. This is also the season when snowmelt becomes active, boardwalks are often wet from melting snow, and strong winds are common. Even when it feels like spring in urban areas, we recommend being well prepared for the cold in Oze, as it is still winter there. At Katashina Village, the gateway to Oze, the Hariyama Tennozakura (cherry tree)—designated as a Natural Monument of Gunma Prefecture—blooms in full glory. So renowned is this cherry tree that photographers from across Japan gather to capture its beauty. This year, due to light snowfall and higher temperatures around March, it reached full bloom earlier than usual on April 19. Typically, however, the best viewing period is from late April to early May. During the illumination held from sunset until 9:00 p.m. near peak bloom, the blossoms reveal a different, enchanting appearance from that seen during the day, delighting visitors.

From July to mid-August, Oze enters summer, the peak season for alpine plants. Daytime temperatures range from about 15°C to 25°C, while mornings and evenings can drop to around 10°C. This is also a time when thunderstorms are likely to occur in the afternoons. For clothing, it is recommended to wear lightweight long-sleeved shirts, long pants, light fleeces, and hats. Don’t forget protection against UV rays and insects as well. During this season, many rare alpine flowers bloom, including daylilies (Nikkōkisuge), Kinkōka, and, on Mt. Shibutsu—one of Japan’s 100 famous mountains—plants such as Ozesō and Hosoba Hina-usuyukisō, a relative of edelweiss. Depending on the progress of the snowmelt, hiking is expected to be possible from June 20 this year.

From late August to mid-October, Oze enters autumn. While intense heat may still persist in urban areas, temperatures in Oze drop to around 0–5°C in the mornings and evenings, and frost is not uncommon. During this season, it is reassuring to have warm clothing such as long sleeves and fleeces. As temperatures begin to fall, the marshlands transform into a golden landscape of kusamomiji (autumn foliage of grasses), resembling a sea of ripened rice fields.

From November to early April, Oze is in winter, and general tourism is not possible. Oze is also known as a region of heavy snowfall and becomes a full-fledged snow-covered mountain area during this time.

Oze is like a walking museum of nature. It is a place full of charm for those who love mountains, nature, flowers, or simply wish to refresh themselves. With convenient access from urban areas, why not take the opportunity to visit Oze?

For more information about Oze, visit TEPCO Renewable Power website!
【Oze & TEPCO】　https://www.tepco.co.jp/rp/oze/

TEPCO is jointly advancing, together with the NTT Group and other partners, one of the largest large-scale mixed-use red...
11/05/2026

TEPCO is jointly advancing, together with the NTT Group and other partners, one of the largest large-scale mixed-use redevelopment projects in central Tokyo, with a total floor area of approximately 1.1 million square meters. The official name of this project, the Hibiya Redevelopment Project, has now been decided as “HIBIYA CROSSPARK.”

The name “CROSS” expresses the concept of an intersection where many different people, ideas, and circumstances intersect to create a synergy that feels fresh and welcoming, while “PARK” conveys the idea of a place allowing you to feel comfortable and be your natural self.

The Hibiya–Uchisaiwaicho area is located at the intersection of key business, commercial, and administrative districts, and hosts important infrastructure facilities—such as electric power and telecommunications—that support Tokyo’s core functions. As part of the project, these facilities will be installed with new capabilities and updated with cutting-edge technology including information and communication technologies to make them carbon neutral and more resistant to natural disasters.

More information about the project is available on the official HIBIYA CROSSPARK website: https://hibiya-crosspark.jp/en/

[FY2025 Financial Results]On April 30, 2026, President Kobayakawa provided an explanation of the FY2025 financial result...
01/05/2026

[FY2025 Financial Results]
On April 30, 2026, President Kobayakawa provided an explanation of the FY2025 financial results at a press conference.
In these results, we were able to secure ordinary profit exceeding our performance forecast; however, net income recorded a loss for the first time in three years, and our financial condition remains severe.
To fulfill our responsibility to Fukushima and our obligation to ensure stable power supply, we will continue to work as one team to advance reforms in both our Fukushima business and our economic businesses.
For details of the financial results, please refer to the link below.
https://www.tepco.co.jp/en/hd/newsroom/press/archives/2026/pdf/260430e0101.pdf

[Press Conference on Executive Personnel Change]On April 30, 2026, at the TEPCO’s Board of Directors’ meeting, it was de...
30/04/2026

[Press Conference on Executive Personnel Change]
On April 30, 2026, at the TEPCO’s Board of Directors’ meeting, it was decided that Chairman of the Board Yoshimitsu Kobayashi will step down, and that, following the general meeting of shareholders and the subsequent Board meeting, Mr. Keisuke Yokoo is slated to be appointed as the new Chairman of the Board.
Upon his retirement, Mr. Kobayashi reflected on his five-year tenure and shared the following message: “Our company must fulfill its responsibilities to Fukushima, while also serving as a company that leads the energy business for the benefit of society.” He also expressed his expectations for his successor, stating, “I expect the incoming Chairman, Mr. Yokoo, to leverage his deep and wide-ranging expertise, demonstrate strong leadership, and guide TEPCO to its next stage.”
Starting in June, we will move forward under a new leadership structure. We will continue our efforts to fulfill our responsibilities to Fukushima and to carry out our social mission and duties, including the stable supply of electricity.

[Minister and State Minister of Economy, Trade and Industry and Industry visited Kashiwazaki-Kariwa Nuclear Power Statio...
28/04/2026

[Minister and State Minister of Economy, Trade and Industry and Industry visited Kashiwazaki-Kariwa Nuclear Power Station]

On April 25, Minister of Economy, Trade and Industry, Mr. Ryosei Akazawa and State Minister of Economy, Trade and Industry, Mr. Kenji Yamada observed our water-spraying drill at the freshwater reservoir and operational status of Unit 6.

[This way to Oze! Vol.69: Start of the Spring Mountain Season on Mount Shibutsu]Starting April 17, 2026, the gates on th...
27/04/2026

[This way to Oze! Vol.69: Start of the Spring Mountain Season on Mount Shibutsu]

Starting April 17, 2026, the gates on the Gunma Prefectural Route 63 Minakami–Katashina Line (from Tsunagi Bridge to the Tokura Ski Resort entrance), the Prefectural Road Oze-ga-hara–Tsuchide Line, and the Prefectural Route 260 (from Tsunagi Bridge to Hatomachi Pass) were opened, marking the start of the spring mountain season for Oze Marshland and Mount Shibutsu.

As in previous years, this season will run until May 6. From May 6 onward, entry into the area will be temporarily prohibited to protect alpine plants. After the snow has melted and trail conditions have been confirmed, the gates are scheduled to reopen again in late June.

The usage areas for the Mount Shibutsu spring season and the skiing routes for backcountry skiing on Mount Shibutsu are determined through on-site surveys of remaining snow and ongoing discussions conducted by the Mount Shibutsu Conservation Committee, the Gunma Prefectural Oze Conservation Promotion Office, the Oze Preservation Foundation, the Katashina Village Community Development and Tourism Division, the Katashina Mountain Guides Association, the Katashina Mountain Rescue Team, the Gunma Prefectural Police Tanigawa Special Rescue Unit, Tokyo Power Technology, and TEPCO Renewable Power.

This season has significantly less snow than usual, and as a result, restrictions have been placed on backcountry skiing and snowboarding areas on Mount Shibutsu, as well as access restrictions for hikers. Depending on future weather conditions and temperatures, additional skiing restrictions and trail closures for hikers may be implemented during the Golden Week period. Visitors are advised to check the Oze Preservation Foundation’s website (https://oze-fnd.or.jp/archives/197597/ [Japanese only]) for the latest information before visiting.

Please also note the following for this season:
👉 Exercise extreme caution on the skiing routes just below the summit of Mount Shibutsu and toward Warusawa, as cracks and crevasses have formed on the snow surface.
👉 All snow bridges in the lower Karasawa area have collapsed, and increased water flow due to snowmelt makes crossing on foot extremely dangerous. Do not descend into Karasawa under any circumstances.
👉 The forest zone between Hatomachi Pass and Ayame-daira can be difficult to navigate when snow cover is heavy, as it is easy to get lost. Be sure to carefully confirm your hiking route.

To help protect Oze’s natural environment, please follow the rules and enjoy your visit responsibly!

For more information about Oze, visit TEPCO Renewable Power website!
【Oze & TEPCO】　https://www.tepco.co.jp/rp/oze/

25/04/2026

At TEPCO, decommissioning Fukushima Daiichi Nuclear Power Station is not the work of one organization or one role—it is the effort of One Team.

Through our One Team initiative, people across disciplines and partner organizations come together with a shared mindset: working collaboratively, making steady and responsible progress, and placing safety above all else.

Step by step, guided by expertise, transparency, and an unwavering commitment to safety, we move forward together.

[Seventh assessment report by the Expert Nuclear Security Assessment Committee]On April 22, the seventh assessment repor...
24/04/2026

[Seventh assessment report by the Expert Nuclear Security Assessment Committee]
On April 22, the seventh assessment reporting meeting was held with the Expert Nuclear Security Assessment Committee which composed of outside experts.
The Committee has been conducting assessments and making recommendations for TEPCO's overall nuclear security performance by outside experts' standpoint through such as visiting the plant.
Committee Chair Itabashi commented that "The importance of nuclear security does not depend on whether the plant is in operation or not”, and that he hopes "you will stay vigilant and approach this with even greater focus."
We will continue striving to further improve nuclear security.

On April 20, the First discharge of ALPS treated water into the sea in FY2026 was completed. Monitoring results have con...
20/04/2026

On April 20, the First discharge of ALPS treated water into the sea in FY2026 was completed. Monitoring results have confirmed that the water was discharged safely as planned.
Going forward, we will remain vigilant to ensure the safe and stable discharge of ALPS treated water.

Today, following the issuance by the Nuclear Regulation Authority of a pre-operational confirmation certificate and a ce...
16/04/2026

Today, following the issuance by the Nuclear Regulation Authority of a pre-operational confirmation certificate and a certificate of passing for the pre-operational inspection for Kashiwazaki-Kariwa Nuclear Power Station Unit 6, TEPCO recommenced commercial operation at 4:00 p.m.

TEPCO has worked diligently to earn understanding from the local community, Niigata Prefecture, and society as a whole, with regard to our initiatives for improving the safety of our power station by disseminating information during reactor startup, etc. We will continue to listen closely to the opinions and concerns of stakeholders while carefully advancing these engagement activities.

There is no end to safety. Everyone working at our power stations will continue to come together as “One Team,” with a strong focus on the field, and remain committed to continuously improving safety. Any new knowledge gained will be appropriately reflected in our operations.

Furthermore, as an operator rooted in the community, we shall listen to the voices of residents while advancing efforts to develop infrastructure that ensures safety and security for the people of Niigata Prefecture and to vitalize the local economy as we walk hand-in-hand with the people of the region.

We have incorporated the expertise and perspectives of various experts from outside the company into these initiatives to ensure highly transparent power station operations and to demonstrate our intentions through actions and results.

The regrets and lessons learned from the Fukushima Daiichi Nuclear Power Station Accident form the foundation of management and safety at TEPCO. With these regrets and lessons firmly in mind, we will continue to operate our power stations with safety as our highest priority.

[TEPCO Group × Customers–Working as One Team]On April 10, 2026, President Kobayakawa spoke at a press conference about T...
16/04/2026

[TEPCO Group × Customers–Working as One Team]

On April 10, 2026, President Kobayakawa spoke at a press conference about TEPCO’s initiatives to stabilize power supply and electricity costs.

At the TEPCO Group, we are working together as one group. At the same time, we are collaborating as “one team” with our customers who use our electricity.

Despite ongoing uncertainties, including the situation in the Middle East, we remain committed to fulfill our mission by striving to maintain a stable power supply.

Please see the press conference material here:https://www.tepco.co.jp/en/hd/newsroom/press/archives/2026/pdf/260410e0102.pdf

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Chiyoda-ku, Tokyo

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