News tagged with wind turbines

China cuts 2012 rare earths export quota

(AP) -- China announced a cut Tuesday in its rare earths export quota as it tries to shore up sagging prices for the exotic metals used in mobile phones and other high-tech goods.

Dec 28, 2011
4.8 / 5 (6) 3

Wind turbines that learn like humans

Depending on the weather, wind turbines can face whispering breezes or gale-force gusts. Such variable conditions make extracting the maximum power from the turbines a tricky control problem, but a collaboration of Chinese ...

Mar 27, 2012
4.8 / 5 (6) 16 | with audio podcast

Shifting winds in turbine arrays

Researchers modeling how changes in air flow patterns affect wind turbines' output power have found that the wind can supply energy from an unexpected direction: below.

Oct 22, 2013
5 / 5 (5) 0

Lifting mechanism for mounting huge rotor blades

Siemens has created a special mechanism for mounting its 75-meter-long rotor blades for offshore wind farms. The lifting system makes assembly work safer and lets construction take place at higher wind speeds ...

Sep 25, 2014
4.8 / 5 (5) 0