Siemens Gamesa has confirmed it has secured an IEC type certificate demonstrating the ability of its 11-MW offshore wind turbine to withstand typhoon conditions
The type certificate demonstrates its rotor-nacelle assembly is resistant to extreme winds of the type encountered in a typhoon.
The type certificate awarded to the SG 11.0-200 DD is the second of this type awarded to a Siemens Gamesa turbine. The company’s SG 8.0-167 DD offshore wind turbine also has this certification. The type certificate was issued by TÜV NORD.
Both Siemens Gamesa machines are thus able to withstand Typhoon- or T-class wind speeds as determined by the IEC, that is, wind speeds reaching 57 m/second for 10 minutes and three-second gusts of up to 79.8 m/second.
More than 1,200 examples of the company’s Direct Drive offshore turbines have been installed worldwide, including in the Asia Pacific region on Formosa 1 project in Taiwan.
In addition to T-Class wind speed compliance, Siemens Gamesa is working with local authorities and certifying bodies to ensure other applicable standards required in the Asia Pacific region are taken into consideration. The company is part of the international Alleviating Cyclone and Earthquake challenges for windfarms joint industry project that aims to align turbine design methodologies with the requirements of extreme environmental conditions.
Siemens Gamesa has also been developing its offshore platform to operate in high and low ambient temperatures, reducing thermal limitations and increasing annual energy production while preserving turbine lifetime.
It anticipates that features such as these will contribute to the further expansion of its portfolio in the offshore wind market in the Asia Pacific. In Japan, for instance, the government has set a target for 30-45 GW of offshore wind capacity to be installed by 2040.
Siemens Gamesa executive general manager offshore Asia Pacific Niels Steenberg said, “We plan to leverage our experience to deliver the highest possible standards to support the broader adoption of offshore wind in the region.”
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