• The state of the art in wind power makes it possible to build units that gather more energy without proportional increases in their total size.
• The study by scientists from the American Chemical Society found that it's possible to mount larger blades on generators without having to use more material in the housings and towers that support them.
• The study published in "Environmental Science & Technology" reported that 500-foot-diameter windmills are in use now, and 1,000-foot-diameter blades are in development.

From the article: "In a study that could solidify the trend toward construction of gigantic windmills, scientists have concluded that the larger the wind turbine, the greener the electricity it produces. ..."