Nope - it's an artist's impression of the Wave Hub - the world's first large-scale wave farm!
The government have given the go-ahead today for this controversial project, and it is expected that the wave farm off the coast of Cornwall, which will cost £28 million and generate enough electricity for 7500 homes, will be operational by 2009.
You can read more about the project here or listen to Chris Evans' "Business Boffin" talking to one of the people behind the project. You need go here and then click on Listen Again Monday - it's about 25 minutes in.
What do you think? Is this a good idea? Or a bit mad?