The Green Britain Centre, Norfolk

The UK's first megawatt class windmill. 

When we built this turbine in 1999, your average windmill in the UK stood about 30m tall. This one was more than twice that height and three times the capacity - the UK’s first megawatt class windmill.

It's no ordinary turbine either – it was the first one in the world with a viewing platform, 67 metres up and offering 360 degree views of the Norfolk countryside.

The viewing platform was designed by Sir Norman Foster, architect of the Gherkin and New Wembley Stadium in London.

Read about how wind energy works.