Swedish energy company Vattenfall has officially opened the 300MW Thanet wind farm off the south east coast of England.

The wind farm, which is expected to operate for at least 25 years, consists of 100 turbines and will generate electricity equivalent to the annual consumption of over 200,000 British households.

Each turbine is up to 115m tall at its highest point and the wind farm covers an area of 35sq km.

Vattenfall CEO and president Oystein Loseth said that with the Thanet wind farm, the company has taken a major step towards doubling its generation from wind power until 2011.

The Thanet wind farm is expected to boost the UK offshore wind power capacity by more than 30% and take the country’s installed wind capacity across the 5,000MW line.