Danish manufacturer Vestas has been chosen by DONG Energy to supply turbines for an extension of a wind farm in Liverpool Bay.

The Burbo Bank offshore wind farm currently consists of 25 turbines, with a total capacity of 90MW and an expected annual output of 315 million kWh. The extension will add 258MW, generating enough clean electricity to power up to 170,000 households.

Vestas will supply its 8MW turbines (pictured) which follows an agreement in 2012 that the two firms would co-operate on the testing of the prototypes.

Samuel Leupold, DONG Energy’s Executive Vice President said: “The performance of the 8MW turbine from Vestas is very promising. I see this as a very concrete step towards reducing the cost of electricity from offshore wind. A competitive market for all components is essential to accomplishing this.”

Earlier this month DONG Energy agreed to sell half of its 50% share in the London Array wind farm for £644 million.