“When a 155-megawatt wind farm in West Texas began commercial operation this month, it pushed the state’s wind power capacity to more than 20,000 megawatts, surpassing 19,800 megawatts of capacity from coal-fired power plants, according to the Electric Reliability Council of Texas, which oversees 90 percent of the state’s grid. One megawatt is enough to power 200 homes on a hot Texas day.”

http://www.chron.com/business/energy/article/Wind-power-blows-past-coat-in-Texas-12386751.php