The deal marks the first time a Japanese company has invested in an offshore wind project.

The £200m ($324m) transaction, which is expected to go through in late 2011, is conditional on Marubeni obtaining funding from project-finance banks.

“We believe the offshore wind power sector represents a tremendous growth opportunity not only in Europe, but in Japan and the Americas as well,” says Marubeni executive officer Masumi Kakinoki.

Marubeni