Faster identifcation and repair of problems

Ever since the wind power industry was apparently caught unawares by the major series failure of gearboxes and bearings which befell it in the late 1990s, customers have asked if the same problems could hit today's generation of larger wind turbines in the 1.5 MW to 2.3 MW range. So far, there has been no repeat of the problems seen on machines in the sub-megawatt size class. But other problems related to bearings and gearboxes have turned up on the bigger machines.