First, the political backlash was not from backbenchers or uninformed spectators on the margins of the mainstream.

Most air heat fabricators and some water heat manufacturers have a completely flooded absorber consisting of two sheets of metal which the fluid passes between.

The size of the project is about five times the tunnel part of the Øresund Link between Denmark and Sweden, currently the longest immersed concrete tunnel.

A pulse of energy generated in that vast expanse of water neared a submerged line of rocks and reared up in front of me in a green wall. As the wave began to break, a dolphin leapt out ahead of the foam, its entire body clear of the water.