Business Green: The deployment of the pioneering Wave Hub marine energy testing facility off the north coast of Cornwall got under way yesterday, when work began to install a 25km-long sub-sea cable to connect the site to the grid. The initial phase of the deployment saw a cable connected between a specialist cable-laying vessel, the Nordica, which has been anchored two kilometres offshore, and the top of the beach at Hayle where a pre-constructed pit has been built to connect the onshore cables to a …