The German company Siemens expands its portfolio of direct drive offshore wind turbines. The new SWT-8.0-154 has a capacity of 8 MW.
The first prototype will be installed during 2017 and is expected to deliver up to 10% higher annual energy production under offshore wind conditions as compared to the model with a capacity of 7 MW and thereby reduce the levelized cost of energy significantly. The new turbine is based on the same platform as its predecessor and had to undergo only small changes for the increase in performance.
Type certification for the 8 MW turbine is expected to be obtained at the beginning of 2018. At the same time, the 3 MW onshore turbine SWT-3.3-130 has successfully obtained type certification from DNV GL. The official certificate is a further step on the way to serial production of the turbine.
Especially due to the introduction of new permanent magnet technology, the rated power could increase by more than 14% from 7.0 to 8.0 MW.
Since the higher rating will be achieved with only a few component upgrades, the 8 MW turbine will benefit from the established supply chain and proven components of offshore direct drive technology. These components include the B75 blade and the medium-voltage transformer of the SWT-8.0-154. Additionally, customers will benefit from fast time-to-market.
"We are relentlessly working on lowering the levelized cost of energy, and the offshore direct drive platform enables us to do this with the lowest possible risk," said Michael Hannibal, CEO for Offshore at Siemens' Wind Power and Renewables Division.
Tanja Peschel / Siemens AG