Blog 3_ Wind Turbines

A prominent economist writing in the media recently suggested that wind turbines, once installed, generate electricity at almost zero cost. Unfortunately, however, they require repair and maintenance: of blades, gearboxes, generators, bearings, brakes, and so on, all involving big costs. And if the wind turbines are located offshore, the repair and maintenance price jumps dramatically, needing even more specialised equipment, ships, crews and maritime expertise. Electricity from offshore wind is necessary but will not be cheap.