Locale : Global (English)
Japan's largest solar power generation
We are proud to have supported more than 200 utility-scale PV projects in Japan, including as owner’s engineer on the two largest solar PV installations in Japan: the 235MW Kuni-Umi plant in Setouchi and the 258MW Sakuto plant.
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Wind power
We’ve provided the full range of wind power services on all types of onshore and offshore projects. We've assisted local and international developers and lenders in delivering major projects.
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Decarbonisation Technology
We have extensive experience in leading decarbonisation technology including hydrogen, ammonia, energy storage and carbon capture, utilisation and storage technology in Japan.
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With a local office in Tokyo, Mott MacDonald has been working in Japan since 2009. We have a strong focus on the energy sector and have undertaken leading roles on some of the country's largest and most complex renewable energy projects. Locally and around the world, our team continues to work with clients to support the development of solar, wind, biomass, thermal and power infrastructure.

Our team of highly qualified professionals are uniquely positioned to provide clients with solutions that shape the future and make a difference to people’s lives.

Our clients have access to our global network of renowned engineers, scientists, cost consultants, planners, environmentalists, economists, project finance advisors, business strategists, and more.


We’re proud to have supported more than 200 utility-scale PV projects in Japan, including as owner’s engineer on the two largest solar PV installations in Japan: the 235MW Kuni-Umi plant in Setouchi and the 258MW Sakuto plant. During the development phase of the projects, we helped establish project bankability, including on energy yield analyses through the study of satellite and actual observed records by the Meteorological Authority (JMA) to evaluate local solar resource levels. We also reviewed designs and harmonised standard international performance tests and performance guarantee structures with local business practice. We continued to support the projects with our site- and office-based teams through construction, and are supporting the operations phase.


We provide the full range of wind power services on both onshore and offshore projects. We've assisted local and international developers and lenders in delivering major projects. Highlights include the 33MW Ohorayama wind farm, Japan’s first project-financed onshore wind farm, and the 140MW Akita Offshore wind farm, Japan’s first project-financed offshore windfarm. We provide advisory services that maximise potential while meeting global standards and have been involved from the earliest stage of site identification, to procurement for wind farms to achieve more favourable conditions, to construction oversight – including on robust testing procedures for turbine performance testing following construction. Our team effectively communicate in English and Japanese.


A world leader in biomass consultation, we offer a range of services from due diligence and feasibility studies to the simulation of the power generation output for each fuel property and financial model evaluation. Securing a long-term stable fuel supply is one of the key challenges and we’ve worked on projects sourcing biomass for delivery to Japan from supply chains in both North America and Southeast Asia. We also support the implementation of environmental assessment in accordance with domestic environmental laws and local regulations.


As independent engineer, we've provided technical and environmental review, construction and operations monitoring, and have managed lenders' technical risks for non-recourse financed projects. Our involvement in thermal projects for Japanese clients comprising over 3GW of thermal plants in Japan includes 1GW of new power generation capacity using the most advanced and efficient coal combustion technology to replace the Fukushima nuclear power project.

Here is a showcase of our completed and ongoing energy projects in Japan. Please click here to explore further.

Completed projects

  • Ohorayama wind farm
  • Setouchi Kirei mega solar PV
  • Sakuto solar PV
  • Tsugaru onshore wind farm
  • Katsuura solar PV project
  • Ishikawa solar PV project
  • Suzukawa biomass conversion project
  • Moka combined cycle gas turbine project

Ongoing projects

  • Akita offshore wind farm
  • Hibikinada offshore wind farm
  • Onikoube solar PV project

Our employee experience in Japan

We embrace all cultures, personalities and perspectives. We have a diverse team and seek to attract talent from all around the world. Our inclusion network, Advance, is designed to promote equality, diversity and inclusion across our global offices. At the heart of the organisation, we promote a supportive and respectful working environment for all.

A focus on you

We value and look after your wellbeing by providing avenues to support you both personally and professionally.

We offer career mobility to support your professional ambitions. These include opportunities to contribute on projects worldwide. As a globally-connected business, there may also be opportunities to work in other country offices.

Continuous learning is critical to your success. This is why we invest in your learning and development via e-learning based courses and corporate wide programmes such as our Early Career Professionals, our in-house Renewable Energy Academy, and others focused on building commercial, technical and leadership excellence.

Social responsibility and purpose

We focus on projects that support sustainable development and resist projects with poor environmental outcomes.

With us you will be actively challenged to use your ingenuity to deliver lasting value and sustainable solutions to our clients and the communities we work in.

You will also be empowered to have ownership over your area of work, providing a sense of fulfilment and purpose.

Collaboration and unity

We constantly focus on opening opportunities with connected thinking. In joining us you will work as part of an integrated team and with a network of digital innovators.

We are connected and unified as an organisation. We actively seek synergies across different teams to bring depth and breadth of skills, enabling you to work across geographical boundaries.

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