Wind Turbines: A look at who builds the blades

wind-turbineClean Energy Review recently published a great photo essay by Joan Sullivan looking at how wind turbine blades are built. Here’s an exerpt:

Birth of a Blade

PowerBlades opened last year in Welland, Ont, to support the growth in renewable energy in Ontario spurred in turn by the province’s Green Energy Act. As of October, the company will have fabricated 78 fiberglass blades, each 45 meters long and up to three meters wide, for dozens of 2.05 MW Senvion turbines. Each turbine generates energy to light up about 1,000 homes.

Inside PowerBlades, overhead cranes move girders and blades from one part of the building to the next. Here, 136 production workers, machine operators, and office staff work on various stages of blade production, including lay-up, lamination, curing, sanding, painting, inspection, repair, finishing, loading, and transport.

Blades begin their lives in the plant’s Main Shell Area, where workers lay sheets of fiberglass mat and resin into a pair of side-by-side proprietary molds each about 50 meters long and four meters wide. Each blade is built up in two halves, split down the long axis like a pea pod….

Visit their website for more photos and info.