Guardian: Almost two years ago, cranes loaded three red ‘Pelamis’ wave machines – named after a species of sea snake – on to container ships in the Orkneys. Their destination: the coast of Portugal. Nothing could be more symbolic of how the UK has fallen behind in the race to embrace renewable energy. The bizarre-looking devices, developed by Edinburgh-based Pelamis Wave Power, use the force of the sea to generate renewable and clean electricity. They are the product of Caledonian engineering …