The field testing of the SWT-7.0-154 machine will focus on the upgraded generator and improved electrical system.
The turbine will generate around 10% more energy than its predecessor, the SWT-6.0-154 model, at comparable operational costs.
Siemens claims that the SWT-7.0-154 is the lightest turbine of its class and the existing cranes as well as installation vessels will be sufficient for its installation.
It is capable of generating 32 million kilowatt hours of energy in offshore wind conditions, enough to supply around 7,000 homes.
Siemens Wind Power and Renewables Division head of technology Morten Rasmussen said: "The installation of the 7-MW version is an exciting step in its further development.
"Based on the reliable technology and supply chain of our six megawatt machine we have improved our flagship wind turbine with stronger permanent magnets, optimized generator segments and upgraded converter and transformer units."
In a separate press release, Siemens has unveiled the launch of SWT-2.3-120 wind turbine in the US.
The new turbine, which features a 120m rotor, is specifically designed for the demands of the North and South American wind markets.
Serial production of the turbine, which is based on the G2 product platform, will start in 2017.
The new turbine is claimed to increase energy output at sites with medium to low wind conditions normally identified in the Americas region.
Image: The prototype in Østerild, Denmark was installed only a few months after the product launch at EWEA Offshore trade show in Copenhagen. Photo: courtesy of Siemens.
