Carpinteria, Calif.-based Clipper Windpower (LSE: CWP) has made the first sale of its new 7.5 megawatt turbine, the world's largest offshore turbine, selling the prototype to the U.K.'s Crown Estate.

Financial terms of the deal were not disclosed.

The new Clipper turbine was developed in Blyth, England, as part of a two year development dubbed the Britannia project (see Clipper Windpower to build world's largest turbine).

"We believe that our support to the Britannia project through the acquisition of this purposely designed new generation offshore turbine will drive forward the development of turbine technology designed for the challenges of the offshore environment," said Rob Hastings, director of the marine estates at the Crown Estate.

The marine interests of the Crown Estate include almost the entire U.K. territorial seabed out to 12 nautical miles and around 55 percent of the country's coastal foreshore.

Extending further out, the Crown Estate also has the rights to lease seabed for renewable energy on the continental shelf within the Renewable Energy Zone, which extends out to approximately 200 nautical miles.

Clipper said the 7.5 MW prototype turbine would be assembled and tested at the company's Centre of Excellence for Offshore Wind in Blyth.

That site is adjacent to the government funded New and Renewable Energy Centre, and gives Clipper access to blade test and prototype manufacturing facilities.

Clipper said funding from the government-backed One North East regional development agency would support the development of the company's turbine supply chain and related manufacturing facilities.

The U.K. has set a target to receive 15 percent of its energy from renewable sources by 2020.