Reuters: Turbines should be commercially available in 7-8 years to provide regular-as-clockwork tidal power, more reliable than wind or wave energy, a pioneer of the technology told Reuters on Monday. Cost were falling and catching up with those for offshore wind, Martin Wright, head of Marine Current Turbines Ltd (MCT) said. “Tidal energy has one huge advantage — that’s its predictability,” Wright said. “We will produce renewable energy to a timetable.” MCT, which last July put …