The Petrel 25-15. A no nonsense perfomer.

The Petrel 25-15 is a robust, high-output farm-scale wind turbine. The tried and true Danish geared concept capitalizes on industrial grade off-the-shelf components for optimal economics and reliability. The low rotor speed ensures quiet operation. Passive power and yaw control eliminate typical points of failure resulting in robust, reliable operation over the design lifetime of 25 years.

Key measures

Rated power

25 kW

Cut-in wind speed

3 m/s

Rated wind speed

11.5 m/s

Cut-out wind speed

25 m/s

Max power

25 kW

Tower options

Monopole (15m), Lattice (36m)

Tail length

5.1 m

Tower top mass

1650 kg

Rotor

Rotor diameter

15.5 m

Rotor area

189 m2

Rotor speed

46 rpm

Tip speed

38 m/s (slow, quiet)

Blade length

7.5 m

Blade manufacturer

Olsen Wings (Denmark)

Blade material

Fibreglass

Pitch angle

fixed

Drivetrain, Control & Safety

Control & SCADA

Orbital TMC3 (Denmark)

Generator

VEM / 750rpm / asynchronous / 30kW (Germany)

Gearbox

Bonfiglioli / planetary / 16.7:1 / 120 mm shaft (Germany)

Brakes

fail safe generator shaft brake / blade tip-brakes

Power control

Passive aerodynamic blade stall

Yaw control

Passive (tail)

Yaw bearing

Rollix slewing bearing (France)

Low maintenance

  • Visual inspection once a year
  • Gearbox oil change every two years

Designed to last

  • All components verified according to IEC 61400-2
  • Operation from -25 C to 40 C
  • Design lifetime 25 years

Produces in low wind

Hub height wind speed (m/s)

AEP (MWh)

3.5

25.0

4.0

36.0

4.5

47.8

5.0

59.8

5.5

71.5