Capacity per turbine
According to calculations by C-Power, based on over 1.2 million historic wind measurements on the coast since 1986, the wind turbines will run for 8440 hours per year, being 96% of the time.
The equivalent number of hours when the wind turbines are running at full power (equivalent full load hours) has been calculated to be approximately 3300hrs/year.
Capacity of the wind farm
The wind farm consists of 54 turbines with an installed capacity of 325,2 MW:
Phase 1: 6 x 5 MW
Phase 2: 30 x 6,15 MW
Phase 3: 18 x 6,15 MW
|6M (PH2&3)||5M (PH1)|
Improvement between Senvion 5M and 6M:
- General optimization of the design and the functionalities of the turbine
- Higher voltage of 6,6 kV (instead of 950 V) in generator stator
- Water cooling of generator (air – water –air)
- New gear box (higher torque)
- Adaptation of transformer to the higher voltage and power and improved cooling
- Optimization of the nacelle lay-out allowing easier maintenance
General Functional Details
|Cut-in wind speed:||3,5 m/s|
|Rated capacity:||6,15 MW on 14 m/s
5,00 MW on 13 m/s
|Cut-out wind speed:||
30 m/s averaged 10mins –
35 m/s peak
|Power control:||Variable speed and Pitch control|
Swept rotor area
+- 94 m above sea level
Energy transport in the wind turbines
The aerodynamic force of the wind (proportional to (wind speed)³) drives the rotor which is connected to the main shaft. In the gearbox the (slow) speed of the main shaft is converted into a rotating motion of the high speed shaft, driving the generator. The electrical power is generated by this asynchronous generator and is transformed to a voltage level of 33,000 volts (33 kV). This power is transferred via subsea cables and an offshore transformer station to the high voltage grid on land.
The electric components of the Senvion 5M turbine are located in the rear part of the nacelle.