• Powering America’s Future

    This artist’s rendition shows two new MNES US-APWR 1,700MW reactors at the Comanche Peak Nuclear Power Station in Glen Rose, Texas. These units will be some of the first nuclear reactors built in the US in decades and contribute to America’s clean, independent energy future.

  • Maintaining and Improving

    MNES is happy to offer several nuclear service technologies and methods unique to our company to US companies for the first time. These services help ensure the safety and longevity of today’s and tomorrow’s American nuclear fleet.

  • Valuing the Best

    Our company’s foundation is based on the excellence of our employees. With offices across the US and a desire to foster growth in our employees, MNES offers employees an opportunity to work in a diverse company with some of the industry’s most experienced professionals and its talented rising stars.

  • Clean Energy

    Nuclear energy is a safe, clean method to meet America’s current and future base load energy needs. With nearly 20% of the energy produced in the US today being generated by nuclear power, the continued operation and expansion of these plants contribute to America’s energy independence.

Plants & Projects

Plants & Projects

View MNES Projects »

MNES offers the US-APWR nuclear power reactor and a variety of nuclear services. Learn more about our products and our current projects.

Technical Information

Technical Information

View our resource center »

Information about our reactor and services are available from industry sources and this website. Please explore these resources to learn more about our technologies or contact us for more specific information.

Career Opportunities

Career Opportunities

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Mitsubishi Nuclear Energy Systems, Inc. (MNES) is an equal opportunity employer.  We provide equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, gender expression, sexual orientation, national origin, age, disability, genetic information, marital status, or status as a covered veteran in accordance with applicable federal, state and local laws.  To learn more, click here

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Benefits of APWR Technology

Mitsubishi Nuclear Energy Systems

Mitsubishi Nuclear Energy Systems, or MNES, is a designer of America’s next generation of clean air nuclear energy generating stations, the US-APWR, and is an emerging leader in nuclear energy services.

MNES was established in 2006 by Mitsubishi Heavy Industries (MHI), as the supplier for Mitsubishi nuclear technologies in the United States. From its headquarters in Charlotte, North Carolina, MNES is leading the way for safer and more reliable nuclear energy.

MNES seeks to be an “evolutionary” provider of nuclear equipment and services by building on existing technologies rather than to attempt revolutionary advancements. The US-APWR grew out of the expertise gained by Mitsubishi’s construction of 24 PWRs in Japan.

The new US-APWR design, specifically engineered for the United States, achieves superior safety, reliability, economy and compatibility with the environment. We strive to achieve an eco-friendly, diversified power industry with nuclear power stations being the safest, most reliable and most efficient in the industry.

MNES is also providing state-of-the-art technologies for the existing U.S. operating fleet, such as replacement of heavy components and water jet peening technologies for Alloy 600 mitigation measures.


Our Affiliates

American Nuclear Society
DOE - Global Nuclear Energy Partnership
Nuclear Energy Institute
Nuclear Regulatory Commission
World Nuclear Association

Latest News

Mitsubishi Nuclear Energy Systems, Inc. (MNES) has named Yoshinobu Shibata as President and Chief Executive Officer as part of the reorganization to focus the company’s business on providing replacement components and services to U.S. nuclear power plants. | Download

Mitsubishi Nuclear Energy Systems (MNES) announced that it will shift its commercial priorities in the United States starting in 2014. The new plan will emphasize MNES’ services and components business, and the company will reorganize to affect these changes. | Download

Mitsubishi Nuclear Energy Systems, Inc. (MNES) has been awarded contracts at two nuclear power plants--Wolf Creek Generating Station and Ameren Missouri Callaway Energy Center--to provide its state-of-the-art water jet peening (WJP) services.  | Download