Energy companies in the UK see potential from underwater turbines that produce electricity . The energy is consistent and predictable ; companies can model output 100 years in the future . The United Kingdom may seem an unlikely candidate to lead a renewable energy revolution ; it does n't have much sun for solar power , it does n't have much space for wind power and it does n't have giant coursing rivers for hydro . Meygen has placed four turbines in the north of Scotland to tap the tidal power of Pentland Firth . Comment:
Energy companies in the UK see potential from underwater turbines that produce electricity . The energy is consistent and predictable ; companies can model output 100 years in the future . Meygen has placed four turbines in the north of Scotland to tap the tidal power of Pentland Firth . Comment: