The Crown Estate has approached energy suppliers with a view to building offshore wind farms large enough to supply millions of homes with power. Independent on Sunday

The Crown Estate owns the seabed around Britain and issued wind farm developers last month with guidelines on how to bid for the projects in what the industry has dubbed 'round 3'.

In 'round 2' four years ago, the Crown Estate announced the construction of 15 offshore wind farms, such as the Thames Array, which would generate up to seven gigawatts of electricity, enough to provide power to 4 million households.