Business Green: Wave energy specialist Ocean Power Technologies announced last week that it has deployed its first PowerBuoy wave power systems off the coast of Hawaii. The Hawaii project, which is the third site to be targeted by the company, is situated off the coast of Oahu. The device lies a mile off the coast in 100 feet of water. The project, which was undertaken with $300,000 (£201,000) of funding from the US Navy, involved the deployment of a single PowerBuoy capable of delivering 40kW …