German engineering company Siemens will deliver three modern direct drive SWT-3.2-113 turbines for the Naundorf onshore windpower plant.

Under the terms of the deal, Siemens will install the turbines on steel towers with hub heights of 92.5m. The new turbines have a rotor diameter of 113m and will have the capability to add nearly 10MW to the site’s existing generating capacity, which will increase to almost 42MW.

Siemens’ windpower and renewables division onshore CEO Thomas Richterich said: "We are very happy to have been chosen for this project because of our optimal grid compatibility.

"We make use of the whole Siemens product portfolio, which covers the entire value chain from electricity generation to energy distribution."

"Siemens will install the turbines on steel towers with hub heights of 92.5m."

Siemens’ medium-voltage automatic switchgear will perform a major role in allowing the three turbines to both connect and disconnect themselves to the grid in time-staggered periods. Also known as an auto-reclosing-system, the automatic switchgear is important for increasing capacity.

Turbines at the site use one grid access point connected to the local medium-voltage grid. The plant can avoid overloads by staggering the turbine’s energy feed into the grid in defined stages to maintain grid stability.

The installation is expected to commence in autumn this year, while operation will start early next year. Once fully operational, the Naundorf onshore wind power plant will be able to supply clean energy to nearly 10,000 German households.

The order also includes a 20-year service agreement by Siemens.

Image: Siemens’ new SWT-3.2-113 turbines will be able to add 10MW of power to the existing capacity at Naundorf onshore windpower plant. Photo: courtesy of Siemens.