http://www.newsweek.com/texas-wind-turbines-frozen-power-why-arctic-1570173

Wind turbines in Texas have been targeted by state officials after a freezing winter storm knocked out power supplies to millions of homes.

Temperatures in the state fell as low as 0 degrees Fahrenheit earlier this week, causing widespread disruption. Thermal energy sources, including gas, coal and nuclear energy were all affected due in part to frozen instruments.