Enercon has commissioned its first prototype E-141 EP4 wind turbine at Coppanz in Thuringia, Germany.
The low wind speed machine (pictured) has been installed on a hybrid tower with a hub height of 129 metres and has fed its first power to the grid.
Enercon said the E-141 EP4 is based on its new 4MW platform, which also forms the basis of its E-126 EP4 unit for medium wind speed sites.
Both turbines have a nominal output of 4.2MW, the German company said.
The E-141 EP4 has a 141-metre rotor blade and can generate more than 13 million kilowatt hours of electricity a year at average wind speeds of 6.5 metres a second, Enercon said.
It added that other E-141 EP4 prototypes are being installed in Lower Saxony for certification measurement.
Enercon is planning to install 80 E-141 machines and 70 E-126 turbines this year.
Image: Enercon
