After the record low-wind anomalies that challenged many project operators in the United States in the beginning of the year, wind energy performance is expected to remain below normal in most regions into the final quarter of 2015. This is due to a persistent El Niño that is forecast to remain in effect throughout the…

Adding a series of ridges to the edges of a turbine blade could increase annual electrical production for wind farms by 20%, says the design firm for the feature. The idea comes from Humpback whales that tilt their fins at steep angles for more lift in the water. Too much tilt, has the opposite effect—a…