As wind turbine designs grow ever larger, engineers need new facilities to test their mettle, measuring their energy-generation capacity and making sure they can withstand the windiest conditions.
A new rig for extreme turbine rotor blade tests is set to open this summer in Germany, built to assess a new generation of mega turbines.
Wind turbines can be a radar operator's worst nightmare. By scrambling radar waves as blades spin faster or slower, large wind farms are sometimes capable of erasing airplanes from radar screens completely. But a Danish wind turbine company and a UK defense contractor may have found a solution by unveiling the first "stealth" wind-turbine blade last month.