With more than 30 percent of new electricity coming from wind power, the U.S. Department of Energy said the industry is becoming entrenched in the power sector. The Department of Energy published a 24-page document highlighting trends in the renewable power sector . Wind energy, the report said, is becoming a “mainstream power source,” accounting for 31 percent of all new electricity capacity added to the U.S. grid between 2008 and last year. “Wind now provides 4.4 percent of total U.S. electricity generation, 23 states have at least 500 megawatts of wind installed, and in nine states, wind exceeds 10 percent of total in-state electricity generation,” the report said. As of last year, there were 65,000 MW of land-based wind power […]