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- Akita Noshiro Offshore Wind Farm is Japan’s largest, led by Mitsubishi Corporation.
- First power delivered in June 2024; full completion target is late summer 2026.
- Target installed capacity is 1.4 GW, serving thousands of households in northern Japan.
Mitsubishi Corporation announced the energization of the Akita Noshiro Offshore Wind Farm on the Sea of Japan, marking a milestone for Japan’s renewable energy sector. The project, in collaboration with Chubu Electric Power and several regional partners, is the country’s largest operational offshore wind initiative to date.
The wind farm’s initial phase delivers 140 MW to the grid, with planned expansion to 1.4 GW by August 2026. Mitsubishi’s roadmap aligns with Japan’s national target—set by the Ministry of Economy, Trade and Industry (METI)—to install 10 GW of offshore wind capacity by 2030. The project comprises dozens of turbines supplied by Siemens Gamesa and is slated to become a regional anchor for decarbonization.
Financing for the Akita Noshiro project exceeded $3 billion, including support from Japan Bank for International Cooperation (JBIC) and major commercial lenders. Mitsubishi claims over 30% of components were locally sourced, but independent assessment of supply chain sustainability and local economic benefit remains pending. NGOs including the Renewable Energy Institute have called for more transparent reporting on social and environmental impacts.
While Mitsubishi’s public statements highlight carbon reduction and energy security, measurable emissions reductions and local job creation data have not yet been disclosed. Delivery of the full 1.4 GW by end of summer 2026 will be critical to demonstrate progress beyond initial power delivery announcements and to counter potential greenwashing concerns as scrutiny of large projects increases.
Frequently Asked Questions
What is the capacity and timeline for Japan’s largest offshore wind farm?
The Akita Noshiro Offshore Wind Farm, led by Mitsubishi Corporation, targets a total installed capacity of 1.4 GW by August 2026. Initial power delivery began in June 2024, with phased expansion ongoing. The project is a cornerstone of Japan’s strategy to increase renewable energy generation in line with national climate targets.
How is Mitsubishi funding and sourcing components for the project?
Total project financing exceeds $3 billion, with backing from JBIC and private banks. Mitsubishi states that over 30% of components are domestically sourced, but comprehensive third-party verification of local supply chain and sustainability practices is pending.
Have there been measurable impacts or are these mainly announcements?
As of June 2024, only the initial 140 MW phase is operational. Mitsubishi’s claims about local benefits and emissions reduction remain largely announcements, with formal impact data and independent verification expected after the project’s full commissioning in 2026.
Frequently Asked Questions
What is the capacity of the Akita Noshiro Offshore Wind Farm?
The Akita Noshiro Offshore Wind Farm targets a total installed capacity of 1.4 GW by August 2026.
When did the Akita Noshiro Offshore Wind Farm deliver its first power to the grid?
The wind farm delivered its first electricity to the grid in June 2024.
How much did the Akita Noshiro Offshore Wind Farm project cost and who financed it?
Project financing exceeded $3 billion, with support from the Japan Bank for International Cooperation (JBIC) and major commercial lenders.
What percentage of the wind farm’s components are sourced domestically in Japan?
Mitsubishi states that over 30% of the project’s components are domestically sourced, though independent verification is pending.
What is the timeline for full completion of the Akita Noshiro Offshore Wind Farm?
Full completion and delivery of the 1.4 GW capacity is expected by late summer 2026.
