About Us
Message from the President
The domestic power business environment is rapidly changing due to several factors, including the global decarbonization trend since the 2015 Paris Agreement, increasing uncertainty in energy resource supply due to geopolitical risks, and the progress of power sector deregulation and energy market trading promoted by power system reforms.
Mitsubishi Corporation Energy Solutions is the domestic power business platform of Mitsubishi Corporation that comprehensively integrates functions such as development and management of power-generation facilities, energy trading, power retailing, and energy services. By leveraging these capabilities with flexibility and collaborating with our business partners and local communities, we will adapt to changing business circumstances, create new solutions, and address societal needs.
Building on our expertise developed through decades of experience in power generation and power equipment supply business, and by incorporating cutting-edge technologies and business ideas inspired by Mitsubishi Corporation Group’s global operations, we aim to drive out-of-the-box innovation across Japan’s power sector.
We thank all of our stakeholders and business partners for their continued support and cooperation in our business.
Takao Fujii, President and Chief Executive Officer, Member of the Board

About Us
- Company name
- Mitsubishi Corporation Energy Solutions Ltd.
- Capital
- 300 million yen(JPY)
- Established
- October 1, 2015
- Representative
- Takao Fujii, Member of the Board, President and Chief Executive Officer
- Shareholder composition
- Mitsubishi Corporation (100% Ownership)
- Address
- 〒100-8086 Marunouchi Park Bldg., 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo
- Business
- Power generation business
- Related companies
Organization
Mitsubishi Corporation Energy Solutions Ltd.
History
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2002
- Started working on on-site power generation projects in the Power & Electrical Systems Department, Power & Electrical Systems Division, Mitsubishi Corporation.
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2004
- Started an on-site power generation project for the Kirin Brewery Fukuoka Plant (subsequently expanded to other factories).
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2007
- Started on-site project at Mitsubishi Chemical’s Kawajiri District and Shiohama District (Yokkaichi).
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2008
- Started on-site projects for the Mazda Head Office Plant and Chugoku Lumber Kashima Factory.
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2010
- Started on-site project for JSR Yokkaichi Plant.
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2013
- Established Diamond Solar Japan, a management company of the domestic mega-solar business.
- Started operation of a mega-solar project at a site adjacent to Aso Kumamoto Airport in Kumamoto Prefecture.
- Started on-site project for the Mazda Hofu Plant.
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2014
- Started construction of IPP power generation facilities at Nippon Paper Industries’ Fuji Mill (Suzukawa) in Fuji City, Shizuoka Prefecture, together with Nippon Paper Industries and Chubu Electric Power.
- Started on-site project for Niigata Mill of Hokuetsu Kishu Paper.
- Started operation of mega-solar project at the plant of Nihon Kasei in Iwaki City, Fukushima Prefecture.
- Commenced environmental assessment for wind power generation project in Kuzumaki Town, Iwate Prefecture.
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2015
- Started operation of mega-solar projects at Onahama Petroleum in Iwaki City, Fukushima Prefecture; the Komatsushima Mill of Nippon Paper Industries in Tokushima Prefecture; the coastal industrial zone in Tahara City, Aichi Prefecture; a former golf course site in Tadewaramachi, Nagasaki Prefecture; and a former salt evaporation pond in Tamano City, Okayama Prefecture.
- A consortium, in which our company is participating, was selected as operators for an offshore wind power project in Iwafune, Murakami City, Niigata Prefecture, and we commenced feasibility studies.
- Selected together with Kyushu Electric Power as a geothermal power generation operator in Minamiaso Village, Kumamoto Prefecture, and commenced surface survey.
- Basic agreement regarding implementation of IPP project at Nippon Paper Industries and its Ishinomaki Mill.
- Began construction of co-generation power plant on the Mizushima Plant of Mitsubishi Chemical.
- On October 1, established a new entity, Mitsubishi Corporation Power, as an individual subsidiary of Mitsubishi Corporation to carry out the development and operation of onsite power generation, thermal IPP, and renewable energy businesses.
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2016
- Started business operation of Suzukawa Energy Center, our first thermal IPP project.
- Started power generation business using the world’s most advanced integrated coal gasification combined cycle (IGCC) technology for Fukushima reconstruction, achieving one of Japan’s largest project finance arrangements.
- Executed financial close for the Akita Katagami wind power project.
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2017
- Obtained the Minister of Economy, Trade and Industry’s recommendation regarding the draft environmental impact statement for the Iwate Kuzumaki wind power project.
- Started commercial operation of the Kochi Kami mega-solar project.
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2021
- Changed company name to Mitsubishi Corporation Energy Solutions Ltd.
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2022
- On July 1, our company, Mitsubishi Corporation Energy Solutions Ltd. newly established Mitsubishi Corporation Clean Energy Ltd. and Mitsubishi Corporation Offshore Wind Ltd. through an incorporation-type company split.
Our renewable energy power generation business, ( onsite power generation business, IPP power generation business, and power plant sales and after-service business, except for offshore wind power business ) were transferred to Mitsubishi Corporation Clean Energy Ltd., while the offshore wind power generation business were transferred to Mitsubishi Corporation Offshore Wind Ltd..
- On July 1, our company, Mitsubishi Corporation Energy Solutions Ltd. newly established Mitsubishi Corporation Clean Energy Ltd. and Mitsubishi Corporation Offshore Wind Ltd. through an incorporation-type company split.
Note: Onsite power generation business: We A business that owns private power generation facilities within a customer’s plant and supplies steam and electricity to the plant.
Philosophy and Principles
As a member of the Mitsubishi Corporation Group, we adhere to the Three Corporate Principles of Mitsubishi Corporation as our Philosophy and Principles.
Under these Principles, we will fulfill our responsibilities to stakeholders and contribute to the realization of an abundant energy society through supply of electric power.

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Corporate Responsibility to Society
Strive to enrich society, both materially and spiritually, while contributing towards the preservation of the global environment.
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Integrity and Fairness
Maintain principles of transparency and openness, conducting business with integrity and fairness.
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Global Understanding Through Business
Expand business, based on an all-encompassing global perspective.
Basic Philosophy
Officers and employees of Mitsubishi Corporation Energy Solutions Ltd. shall comply with laws, regulations, international agreements, and in-house rules in the performance of their duties, observe business etiquette, and act responsibly in accordance with social norms.
Basic Principles
- Respect human rights, and do not discriminate on any basis or engage in any form of harassment.
- Maintain a high regard for environmental considerations in conducting our business operations, and ensure that our business is conducted in an environmentally sustainable manner, and comply with treaties, laws and regulations concerning the environment.
- Promote fair business practices and comply with trade rules, regulations, and internal corporate rules and policies.
- Comply with the rules and regulations of international trade.
- Protect and properly use confidential and proprietary information, protect the rights of the company and respect the rights of others.
- Do not engage in insider trading.
- Avoid conflicts of interest with the company; maintain a distinction between corporate and private business.
- Record and report accounting and financial information timely and accurately.
- Maintain proper legal and ethical standards with respect to gifts and entertainment.
- Resolutely oppose any organization, group or individual engaged in unlawful activities and do not provide money or other types of economic benefits to them.
- Promptly report to or consult the superiors, or the Compliance Officers, upon discovering or committing any violations of this “Basic Principles”.
Continually creating social and environmental value through business
Mitsubishi Corporation Energy Solutions Ltd. is advancing initiatives toward realizing a sustainable society through renewable energy projects such as offshore wind, solar, onshore wind, and hydropower. We handle integration and optimization operations of the Mitsubishi Corporation Group’s domestic power generation business and strive to stably provide clean power for achieving a carbon-neutral society. Also, by strengthening collaboration with local communities and partner companies, we will contribute to creating new power solutions with high environmental value.