Offshore farms produce more reliable power because the wind is less intermittent, and they allow firms to avoid getting entangled in the UK's labyrinthine planning regulations.
But they are notoriously expensive, and large firms including BP and Royal Dutch Shell have pulled out of the sector.
But Stephen Remp, executive of SeaEnergy PLC, said: 'The offshore wind opportunity is truly enormous, with over £130bn of investment envisaged over the next 11 years through the Scottish and UK Offshore Rounds.'
An amazing situation! Old guys pulling out, and new guys all pouring in.