Striking a blow for wind power

Nineteen miles off the coast of mainland Denmark, 91 turbines reach 114 meters above the turbulent waters of the North Sea. Together they form Horns Rev 2, the world's biggest offshore wind farm, which can generate enough electrify to power 200,000 homes.

Anders Eldrup is CEO of Dong Energy, which operates Horns Rev 2. He told CNN that Denmark's trailblazing efforts in wind power are the result of the country's energy crisis during the 1970s.

"The Danes were totally dependant on oil imported from the Middle East. Suddenly there was an embargo, so no oil. We learnt the lesson the hard way that you have to have diversified supplies of energy."

Danish company Vestas is the world's biggest supplier of wind turbines. Its president for Northern Europe, Klaus Mortensen, told CNN, "We are very focused on providing the lowest cost of energy. With the present system we are competitive with oil at $50 a barrel."

For more: Striking a blow for wind power - CNN.com