Individually designed foundations
The wind turbine foundations penetrate 40-50 metres into the sea bottom, extend from the bottom through the entire water depth and 20 metres above the water level of the sea. In some cases, this means that they have to be 90 metres high, almost equivalent to the height of Big Ben in London. Including the wind turbine itself, the height may well reach the 190 metres of the tower Turning Torso in Malmö, Sweden. Taking this into account, it is clear that the stability of the foundation is very important. These foundations have to be individually designed to match the specific conditions at its location, as water depths and soil conditions can vary greatly over an wind farm area of several hundreds square kilometres.
Because of their 'open' placement out at sea, the foundations will have to resist extreme wind loads, wave loads, fatigue and ship impact. Due to Ramboll's experience, advanced analyses and several design innovations we are able to adapt our designs to the specific circumstances. This saves our clients considerable amounts as our foundation designs are lighter – and less material means lower prices, increasing the competitiveness of wind power against other energy forms.