The Yamagata Yuza Offshore Wind Project represents a major milestone in Japan’s transition to renewable energy. Located off the coast of Yuza, Yamagata Prefecture, this large-scale offshore wind farm is expected to significantly boost Japan’s offshore wind capacity, reduce carbon emissions, and drive economic growth in the region. As Japan accelerates its shift toward carbon neutrality, the Yamagata Yuza project stands as a critical component of the nation’s energy transformation.
Project Overview
| Project name | Yamagata Yuza Offshore Wind |
| Developer | Yamagata Yusa Offshore Wind LLC |
| stakeholders | Marubeni Kansai Electric Power BP Iota Holdings Limited TOKYO GAS Marutaka CORPORATION |
| Location | Offshore Yuza town, yamagata Prefecture |
| Type | Fixed-bottom Offshore Wind Power |
| WTG | sgre |
| Price | 3 JPY/kWh |
| Capacity | 450 MW (15 MW × 30 turbines) |
| Start of Construction | november 2027 |
| Operation Period | june 2030 –2055 |
Location
Project Timeline & Development Phases
- 2024-Present: Environmental assessments, regulatory approvals, and stakeholder engagement
- 2027 November: Onshore construction begins
- 2029 March: Offshore foundation work commences
- 2029 July: Wind turbine installation starts
- 2030 June: Expected commercial operation date
The planned timeline reflects a structured, efficient development process that aligns with Japan’s renewable energy policies.
CAPEX & OPEX Estimates (Based on NEDO Model)
The capital expenditure (CAPEX) and operational expenditure (OPEX) estimates follow the latest NEDO offshore wind cost model.
The estimated capital expenditure (CAPEX) for the Yamagata Yuza Offshore Wind Project is approx. ¥185 billion ($1.2 billion USD), with long-term operational costs (OPEX) projected at approx. ¥3.2 billion annually.
📌 CAPEX & OPEX Breakdown for 450 MW:
| Investment Factor | Estimated Cost (Billion JPY) |
|---|---|
| Turbine Procurement | 102 |
| Foundation & Installation | 70 |
| Substations & Grid Connection | 13 |
| Operations & Maintenance (OPEX/year) | 3.2 |
Economic and Environmental Impact
Boosting Local and National Economy
The Yamagata Yuza project is anticipated to generate significant economic benefits through job creation, infrastructure development, and increased business opportunities for local suppliers. Key economic benefits include:
- Job Creation: Employment opportunities in construction, operations, and maintenance
- Supply Chain Development: Integration of local manufacturers and service providers into Japan’s growing offshore wind industry
- Port Development: Enhancements to nearby ports to support wind turbine installation and servicing
- Investment Attraction: Increased domestic and foreign investment in Yamagata Prefecture’s renewable energy sector
Environmental Advantages
Offshore wind energy is a clean and sustainable alternative to fossil fuels, significantly reducing Japan’s carbon footprint. The Yamagata Yuza Offshore Wind Project will contribute to:
- Lower Carbon Emissions: Reducing reliance on coal and gas-fired power plants
- Energy Security: Enhancing Japan’s energy independence by utilizing domestic wind resources
- Marine Ecosystem Management: Implementing environmentally conscious construction practices to minimize disruption to marine life
- Sustainable Fisheries Coexistence: Working with local fishing communities to ensure harmonious coexistence between offshore wind and traditional industries
Technological Innovation and Infrastructure Development
The Yamagata Yuza Offshore Wind Project will integrate state-of-the-art wind turbine technology and advanced grid connectivity solutions to maximize efficiency and reliability. Key technological highlights include:
- High-Efficiency Wind Turbines: Utilizing the latest turbine models (SG DD236 15MW) to optimize energy output
- Smart Grid Integration: Implementing digital solutions for seamless power transmission
- AI-Powered Predictive Maintenance: Enhancing operational efficiency through real-time monitoring and analytics
- Floating Substations: Potential use of next-generation substations to improve energy distribution
Government Policy and Regulatory Support
The Japanese government has been proactive in accelerating offshore wind deployment through strategic policies and incentives. Key initiatives supporting the Yamagata Yuza project include:
- Renewable Energy Auction System: Encouraging competitive bidding to drive cost reduction
- Feed-in Premium (FIP) Schemes: Supporting long-term project viability
- Infrastructure Investment: Government-backed improvements to ports and grid systems
- Local Community Engagement: Ensuring transparent dialogue with regional stakeholders
Challenges and Risk Mitigation
Despite the promising outlook, the project faces several challenges, including:
- Environmental Concerns: Addressing potential impacts on marine ecosystems and fisheries
- Grid Integration: Ensuring stable electricity transmission without overloading regional grids
- Construction Logistics: Overcoming engineering challenges related to offshore turbine installation
- Regulatory Approvals: Navigating Japan’s complex permitting process for offshore wind farms
To mitigate these risks, the project developers are employing best practices from leading offshore wind markets such as Europe and Taiwan, ensuring a smooth implementation process.
Conclusion: A Transformational Energy Project
The Yamagata Yuza Offshore Wind Project is a landmark initiative in Japan’s offshore wind industry. By combining economic growth, environmental sustainability, and technological innovation, this project sets a new standard for renewable energy development in Japan.
Stay Updated with J-WIND Times
For the latest insights on offshore wind projects in Japan, subscribe to J-WIND Times. Stay informed about industry trends, policy updates, and groundbreaking renewable energy projects shaping Japan’s future.
