Production
|
Wind power is a non-polluting form of electricity
production, and it contributes significantly to the reduction of CO2
emissions. Placing wind turbines offshore only increases the environmental gains
in such a project, as the turbines can produce an energy output which is up to
50 % higher than for comparable turbines on land.
The turbines are expected to produce an annual output of 600,000,000 kilowatt-hours, which corresponds to the consumption by 150,000 Danish households. With the Horns Rev project, Elsam will be making an important contribution to the actualisation of the Danish government’s goal of halving CO2 emissions before 2030. The wind turbines’ production How much the wind turbines will be able to produce is dependent upon the actual wind velocity at a given time. As wind velocity increases, so will the turbines’ output in accordance with their output curve. The wind turbines achieve a small production level at a wind velocity of as little as 4 m/s, and this level increases as the wind velocity increases until the turbines peak at a wind velocity of approx. 13 m/s. If wind velocity exceeds 13 m/s, then the turbine will automatically and gradually pitch the blades out of the wind so as to prevent overload. If the wind velocity exceeds 25 m/s, the turbines will shut off for safety reasons. |
|
| The turbine The turbine model chosen for the project is a Vestas V80 - 2.0 MW. This turbine is a triple-bladed, pitch-regulated, upwind turbine. In addition, it is equipped with OptiSpeed™, a system that allows the turbine’s revolution speed to vary by as much as 60%, thus making it possible to adapt the output of the turbine to suit the parameters of any electricity grid. |
 |