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Siemens 8-megawatt wind turbine up and running

• Product platform with cumulative operating time of more than 100 years
• Prototype for both mechanical and electrical testing installed
• Final type certificate expected for 2018

Siemens Wind Power has installed the latest version of its offshore direct drive wind turbine at the national test center in Østerild, Denmark – according to plan. The SWT-8.0-154 is rated at 8 megawatts (MW) and equipped with the proven 154- meter rotor. The prototype was certified by DNV GL in January, confirming all relevant safety features for test operation. The new offshore turbine was installed on a steel tower at a hub height of 120 meters. The prototype will be used for both mechanical and electrical testing. The final type certificate is expected for 2018.

With the full commissioning of the prototype, Siemens will enter the final development phase for the new turbine that allows for up to 10% higher annual energy production (AEP) under offshore wind conditions than the 7-MW model. The upgrade to eight megawatts enables a rated power increase of more than 14% from 7.0 to 8.0 MW. Similar to the previous upgrade from 6.0 MW to 7.0 MW, the 8-MW turbine will benefit from the established supply chain and proven offshore direct drive technology components. Since the higher rating will be achieved with only a few component upgrades including a new cooling concept and a new control system, customers will again benefit from key value drivers including fast time-to-market and low risk.

“The installation of the SWT-8.0-154 prototype in Østerild is an important milestone in the success story of our offshore direct drive wind turbines,” states Michael Hannibal, CEO Offshore at Siemens Wind Power. “The evolution based on our platform strategy demonstrates that innovation to lower the cost of wind energy can work without compromising the proven reliability of a technically mature product.”



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