Ørsted and Siemens Gamesa are investigating damage to a turbine blade at the Greater Changhua 4 offshore wind farm in Taiwan, following a separate turbine incident at the same project in August.
The blade damage occurred at around noon on 2 October 2026. According to Ørsted’s official incident statement, no personnel were working on the turbine and no vessels were within the affected area at the time. No injuries were reported.
A safety exclusion zone has been established around the affected turbine, while safety controls have also been introduced in the surrounding waters. Ørsted notified the relevant central and local authorities and is monitoring the turbine remotely using cameras. Work vessels are being kept available for emergency response if required.
The turbine remains under warranty with Siemens Gamesa, which is responsible for maintenance and is leading the investigation into the incident. Ørsted said it is supporting the investigation while prioritising personnel safety and protection of the marine environment.
Greater Changhua 4 forms part of Ørsted’s 920 MW Greater Changhua 2b and 4 development, located around 35–60 km off Changhua County. The combined project is equipped with 66 Siemens Gamesa SG 14-236 turbines rated at 14 MW.
The scale of the turbine provides additional technical context to the incident. According to Siemens Gamesa’s SG 14-236 specifications, the turbine has a 236 m rotor and 115 m-long blades.
Ørsted has previously described Greater Changhua 2b and 4 as the first offshore wind farms globally to deploy 14 MW turbines with 115 m blades. All 66 turbines were installed earlier in 2026.
The latest incident follows another event at Greater Changhua 4 on 8 August 2026. In that case, a turbine automatically stopped after detecting an abnormal condition before signs of fire were observed. The turbine was subsequently isolated from the transmission system while the remaining turbines continued operating.
Ørsted said in its August incident statement that the cause was under investigation.
The August and October events occurred within about eight weeks of each other. However, no official information currently establishes a connection between the two incidents or identifies a common technical cause.
The October blade damage also occurred shortly after Ørsted completed major construction works at Greater Changhua 2b and 4 in September, with the project moving through its remaining commissioning activities.
HMT News previously reported that Ørsted was targeting 2026 commissioning for Greater Changhua 2b and 4 as development work progressed.
Ørsted has not disclosed the extent of the blade damage or a repair schedule. The cause of the incident remains under investigation.
