Specification of the wind turbine:

Nom. rating power	3.5 MW
Rotor diameter	120.73 m
Tower height
— steel tubular	90 m, 100 m, 120 m
— lattice	120 m, 140 m, 160 m
Wind class	IEC IIa, IIIa
Wind speed
— minimal	3.0 m/s
— nominal	13.0 m/s
— maximal	25.0 m/s
Rotor speed	till 16 r/min
Maximum sound power	106.0 dB(A)

WTU 3.5 wind turbine — is an advanced model of WTU 3.2 wind turbine, which uses more powerful components, making it possible to achieve greater nominal power.

The main advantages of this model are:

• compact and light-weight design
• simple gearbox design, only two steps. Low rotation of bearings and generator increases their service life
• increased fault tolerance. In case of failure of one of the three detached frequency converters the WTG continues to operate, limiting the power
• easily maintained dry type transformer
• leading eminent component suppliers: Siemens, Winergy, Rothe Erde, SGB, Mita-Teknik and others.