Substation platform: the socket at sea
The substation platform is the heart of the wind farm. The current of each wind turbine of the wind farm is brought there and transformed to a higher voltage level so that the transmission is more efficient. The current can then be fed into the onshore grid with as little loss as possible.
In comparison to the wind turbines, the platform on which the substation is located is relatively low. While modern windmills can reach a hub height of 100 metres and the rotor tip can even reach a height of 160 metres, the substation only reaches a height of approximately 30 meters above sea level.
The platform weighs several hundreds of tonnes. It is completely assembled onshore and then transported to the high seas by boat. The core component of the transforming station is the transformer.