E-70



With the E-70 wind turbine ENERCON continues its longstanding reputation for reliability in the 2 MW class. Especially suitable for sites with high wind speeds, the E-70 wind turbine - with 2.3 MW rated power and numerous steel and precast concrete tower versions - is designed to ensure maximum yield in the upper power range.


Rated power:
2,300 kW



Rotor diameter:
71 m

Hub height:
58 - 113 m

Wind class (IEC):
IEC/NVN I

Turbine concept:
Gearless, variable speed,
variable pitch control

Rotor

Type:
Upwind rotor with active pitch control

Direction of rotation:
Clockwise

Number of blades:
3

Swept area:
3,959 m2

Blade material:
Fibreglass (epoxy resin);
integrated lightning protection

Rotational speed:
Variable, 6 - 21.5 rpm

Pitch control:
ENERCON blade pitch system, one independent pitching system per rotor blade with allocated emergency supply

Drive train with generator

Hub:
Rigid

Main bearings:
Dual-row tapered/single-row cylindrical roller bearings

Generator:
ENERCON direct-drive synchronous annular generator

Grid feeding:
ENERCON converter

Braking systems:
- 3 independent blade pitch systems
with emergency supply
- Rotor brake
- Rotor lock

Yaw control:
Active via adjustment gears,
load-dependent damping

Cut-out wind speed:
28 - 34 m/s
(with ENERCON storm control)

Remote monitoring:
ENERCON SCADA