COPENHAGEN, Denmark – The blades of the 20 turbines of the Middelgrunden offshore windfarm, off the coast of Copenhagen, rotated slowly as the boat ‘Langø’ circled around the long line of massive shafts with the Copenhagen harbour and the bridge connecting Denmark to Sweden outlined in the far distance.

While the Middelgrunden windfarm is no longer considered big compared to the new windfarms in Denmark and around the world, it is one of the first offshore windfarms and the world’s largest when it was first inaugurated in 2000-2001. It has a capacity of 40 MW and the park consists of 20 Bonus turbines each with a power of 2 MW.

The Middelgrunden windfarm provides 3% of the electricity consumption of Copenhagen. Ten of the wind turbines are owned by the energy company Hofor and the remaining ten belong to a co-operative that offers Copenhagen citizens a share of the turbines.

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