World's largest offshore wind power plant with 26 MW to be built in China
There will soon be a new frontrunner in the wind turbine sector. The offshore wind turbine from Dongfang Electric is gigantic in size and has an output of 26 MW.
A rotor blade of what will soon be the world's largest wind turbine undergoing load tests.
(Image: Dongfang Electric)
With an output of 21.5 MW, the “SG 21-276 DD” wind power plant from Siemens Gamesa will not be the largest in the world for much longer. The Chinese company Dongfang Electric has developed an even larger and, at 26 MW, more powerful wind turbine. This is an offshore wind power plant of gigantic proportions. One rotor blade alone has a length of 153 meters. The rotor diameter of the turbine with three rotor blades is then more than 310 m and is suspended from the nacelle at a lofty height of 185 m.
Preparations for the assembly of the wind turbine prototype are already in full swing. The three rotor blades were shipped to an offshore test base off Fujian in China at the beginning of August. The rotor blades had previously undergone static tests and passed them in May 2025. As soon as the rotor blades are on site, they will be installed as quickly as possible.
Electricity for 40,000 households
Once installed, the world's largest wind power plant is expected to generate 26 MW. Around 68 million kWh of energy is to be produced from wind power every year. This could supply up to 40,000 households per year with clean electricity.
The previous leader, the SG 21-276 DD from Siemens Gamesa, which is located in a test wind farm in Østerild on the north coast of Denmark, will have to settle for second place. The new wind turbine from Dongfang Electric also holds the record for the longest rotor blade. The GWH300-20 wind turbine from the Chinese company Goldwind previously had the longest rotor blades with a length of 147 meters.
Videos by heise
Dongfang Electric has now specialized in the construction of oversized wind turbines. The current model has only been planned for 2024. A corresponding nacelle for the 26 MW project was already presented in the same year. The company is pushing hard and focusing on expansion. It has also developed a floating offshore wind turbine with an output of 17 MW. This wind turbine is around 152 m high and the rotor diameter is 262 m. The turbine covers an area of 53,000 m². This is roughly equivalent to the area of seven and a half soccer pitches.
(olb)