Greater Changhua 1 and 2a offshore wind farms in Taiwan represent a major milestone in Asia-Pacific renewable energy infrastructure. The project delivers large-scale offshore capacity while supporting Taiwan’s energy transition goals.
Moreover, it demonstrates strong collaboration between international developers and financial partners. As a result, the development continues to influence offshore wind expansion across the region.
Project overview of Greater Changhua offshore wind farms
The Greater Changhua 1 and 2a offshore wind farms are located 35–50 kilometres off Changhua County. The combined installed capacity stands at approximately 900 MW.
Ørsted developed the project as part of its broader Greater Changhua offshore wind zone. The wind farms achieved first power in 2022 before reaching full completion in April 2024.
Furthermore, the project features 111 Siemens Gamesa turbines supplying electricity to Taiwan’s national grid. It generates enough clean energy to power about one million households annually.
Ownership of the assets is structured across multiple entities. Greater Changhua 1 is co-owned by Ørsted and a consortium of CDPQ and Cathay PE. Meanwhile, Greater Changhua 2a is fully owned by Ørsted.
Current status update on Greater Changhua offshore wind farms
As of 2026, the Greater Changhua 1 and 2a offshore wind farms remain fully operational and continue supplying renewable energy to the grid. The project has become a benchmark for offshore wind delivery in Asia-Pacific markets.
In addition, adjacent phases within the Greater Changhua zone are advancing. Construction of Greater Changhua 2b and 4 is progressing, with commissioning expected in 2026.
Recent milestones include turbine installation completion for the 920 MW Changhua 2b and 4 projects. These developments highlight continued investment and expansion within the offshore wind cluster.
Consequently, the Greater Changhua zone now serves as a strategic hub for Taiwan’s offshore wind ambitions. It also strengthens supply chain capabilities and regional expertise in subsea and turbine installation.
Similarly, offshore wind projects across Asia continue to expand rapidly, including recent contract awards in Japan. The Japan Offshore Wind Project highlights growing demand for subsea infrastructure solutions such as cable protection systems. For instance, Tekmar recently secured $2.6 million in contracts to supply cable protection systems for offshore wind developments in Japan. These contracts reflect increasing infrastructure needs as projects scale across the region.
Therefore, the Greater Changhua developments provide valuable insight into engineering practices, supply chain integration, and project execution. They also demonstrate how mature offshore wind markets can support emerging developments like those in Japan.
Completion of the Greater Changhua 1 and 2a offshore wind farms
The Greater Changhua 1 and 2a projects had their completion planned for 2023. But delays happened due to supply chain issues and the timeline got pushed to 2024. Even with these problems, the team kept working hard and made smart plans. This showed Ørsted’s strong promise.
The Greater Changhua 1 wind farm has a capacity of 605 MW. Ørsted owns 50% of it. A consortium owns the other 50%. The consortium includes Caisse de dépôt et placement du Québec (CDPQ). CDPQ is a global investment group. The consortium also includes Cathay PE, a Taiwanese private equity fund. In contrast, Ørsted solely owns the 295 MW Greater Changhua 2a wind farm. Together, these projects show how international and local groups work together. Their common goal is advancing sustainable energy.
Beyond the wind farms’ big capacities, they hold deeper value. These will be Taiwan’s initial jump into large offshore wind power from far out. This sets a pattern for future projects nearby and worldwide. It’s a major stride in Taiwan’s energy shift, lining up with global moves toward sustainability and renewables.
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The offshore wind farms to reduce emissions
Ørsted’s role in the Greater Changhua 1 and 2a offshore wind farms aligns with their mission to champion wind energy globally. The project reduces emissions, stimulates the local economy through job creation, and drives renewable energy innovation. Ørsted’s strategy embraces offshore wind as a critical energy source. The wind farms contribute to a cleaner environment and economic growth. They also foster technological advancements for a sustainable future.
The Greater Changhua 1 and 2a offshore wind farms are now complete, and move towards creating a hopefully greener future for Taiwan. This means energy will come from wind, not carbon-dense sources. It is a big deal for Taiwan’s renewable journey, showing its commitment to sustainable solutions. Ørsted leads the way in switching to greener energy globally. With these turbines connected to the grid, they represent progress. A future where wind power becomes the norm is possible.
Project Fact Sheet: Greater Changhua 1 and 2a Offshore Wind Farms
Project Name: Greater Changhua 1 and 2a Offshore Wind Farms
Location: Offshore Changhua County, Taiwan
Total Capacity: ~900 MW
Number of Turbines: 111 units
Turbine Model: Siemens Gamesa SG 8.0-167 DD
Distance from Shore: 35–50 km offshore
Construction Start: 2019
First Power: April 2022
Full Commissioning: April 2024
Current Status (2026): Fully operational
Expansion Projects: Changhua 2b and 4 under construction
Annual Output: Powers ~1 million households
Environmental Impact: ~1.75 million tonnes CO₂ reduction annually
Project Team
Owner (Greater Changhua 1): Ørsted (50%), Mercury Taiwan Holdings consortium (CDPQ and Cathay PE)
Owner (Greater Changhua 2a): Ørsted
Developer: Ørsted
Sponsors/Investors:
- Caisse de dépôt et placement du Québec (CDPQ)
- Cathay Private Equity (Cathay PE)
EPC & Construction Contractors: Multiple offshore engineering and construction firms (including turbine and marine installation contractors)
Turbine Supplier: Siemens Gamesa Renewable Energy
Installation Contractors: Offshore marine contractors responsible for turbine and cable installation
Operations & Maintenance: Ørsted (via Taichung O&M hub)
Government/Regulator: Taiwan Ministry of Economic Affairs
Grid Operator: Taiwan Power Company (Taipower)
Key Partners:
- Financial consortium partners (CDPQ, Cathay entities)
- Local Taiwanese supply chain and logistics firms
- International offshore engineering and subsea specialists