Video: New title holder for largest wind turbineS. Himmelstein | May 20, 2020
The world’s largest offshore wind energy turbine is under development by Siemens Gamesa Renewable Energy SA. The SG 14-222 DD offshore direct drive wind turbine is expected to enter the prototype phase in 2021 and be commercially available in 2024.
The 14 MW capacity is sufficient to power approximately 18,000 average European households. The machine features a rotor diameter of 222 m, which gives the new design the size title recently held by the 220 m Haliade-X turbine with 12 MW capacity developed by General Electric Co. Bigger does not always translate into heavier, as the new Siemens Gamesa unit has a low nacelle weight of 500 metric tons, enabling deployment of an optimized tower and foundation substructure compared to a heavier nacelle. Reduced material use and transportation burdens deliver lower costs per turbine.
Turbine output can be ramped up to 15 MW with the company’s Power Boost function. The 222-The 108 m-long Siemens Gamesa B108 blades provide a swept area of 39,000 m2 in a turbine reported to avoid 1.4 million tons of carbon dioxide emissions relative to coal-fired power generation during a 25-year service life.