The installation of the last wind turbine at the 920 MW Greater Changhua 2b and 4 offshore wind farms in Taiwan was completed last week, marking a successful conclusion of the wind turbine build-out and a landmark milestone for the offshore wind industry in the Asia-Pacific region. 

Located 35–60 kilometres off the coast of Changhua County, Taiwan, Greater Changhua 2b and 4 comprises 66 state-of-the-art 14 MW SG 14-236 wind turbines. Offshore construction of the 920 MW project began in February 2025, with wind turbine installation commencing in April last year, executed by wind turbine supplier Siemens Gamesa using Cadeler’s newly built installation vessel, Wind Maker.

The Greater Changhua 2b and 4 offshore wind farms are the first of their kind in the Asia-Pacific region to supply renewable electricity to Ørsted’s corporate customer on the project under a corporate power purchase agreement signed in 2020. Since achieving first power in July 2025, the project has been delivering renewable energy to the national grid. 

Per Mejnert Kristensen, CEO of Region APAC at Ørsted, says: 
“With all wind turbines now installed, we’ve achieved an important milestone in Taiwan’s offshore wind expansion and Ørsted’s 8.1 GW historically large construction pipeline.”  

Jayaram Naidu, Managing Director of Greater Changhua Offshore Wind Farms at Ørsted, says: 
“Completing the offshore wind turbine installation for a 920 MW project within a single installation season is a significant achievement, particularly given the short weather window and challenging sea conditions in the Taiwan Strait. It reflects our disciplined execution, rigorous risk management, and close coordination across marine operations, logistics, and installation planning, all underpinned by a strong safety culture.” 

Safety performance is embedded into all phases in the Greater Changhua 2b and 4 offshore wind farms, from contractor selection over vessel mobilisation to offshore operations. Since the start of the wind turbine installation campaign, a total of approximately 131,576 working hours offshore with zero lost-time injuries (LTIs) has been achieved. 

The focus now for the project is to efficiently continue the commissioning of the wind turbines, the electrical system testing, and the finalisation of offshore cable works. Full commercial operation of Greater Changhua 2b and 4 is expected in Q3 2026. 

The project has several technical achievements as of today: 

• First offshore wind project in the Asia-Pacific region to deploy piling-free suction bucket jacket foundations at scale, keeping the underwater noise close to background levels during installation. 
• First offshore wind farms globally to install 14 MW wind turbines with 115-metre-long blades – the largest of their kind in the world – setting a new benchmark for large-scale wind turbine component deployment. 
• Completion of the 66-wind turbine installation campaign in only 275 days. 

Ørsted in Taiwan

Projects in operation

Formosa 1 

• Ørsted is the biggest shareholder and co-owner of Taiwan’s first commercial-scale offshore wind project, Formosa 1, which was extended from a capacity of 8 MW to 128 MW in 2019. 

Greater Changhua 1 and 2a 

• The Greater Changhua 1 and 2a offshore wind farms are located 35–60 km off the coast of Changhua County, with a total capacity of approximately 900 MW, enough to provide renewable energy to one million Taiwanese households.  
• The 605 MW offshore wind farm Greater Changhua 1 is co-owned by Ørsted (50 %) as well as Caisse de dépôt et placement du Québec (CDPQ) and Cathay PE, who have a combined ownership stake of 50 %.  
• Greater Changhua 1 hosts ReCoral by ØrstedTM, a world-first pilot project which sets out to discover whether offshore wind turbine foundations can provide additional new homes where coral have the potential to flourish. 

Projects under construction

Greater Changhua 2b and 4 

• Ørsted was awarded the 920 MW Greater Changhua 2b and 4 offshore wind farms in June 2018. 
• The 583 MW offshore wind farm Greater Changhua 4 is co-owned by Ørsted (50%) and Cathay Life (50%). 
• Ørsted has signed an agreement with Cathay Life Insurance, the leading life insurance company in Taiwan, and its affiliate Cathay Power (together ’Cathay‘), under which Cathay will acquire a 55 % ownership stake of Ørsted’s 632 MW Greater Changhua 2 Offshore Wind Farm. The closing of the transaction is planned to occur simultaneously with the project reaching commercial operations, which is expected in Q3 2026.

 KeyFacts Energy: Ørsted Taiwan country profile