A record amount of wind is being turned into electricity in Colorado this week as the last of 250 turbines started turning at NextEra Energy Resource'sLimon wind farm.
The wind is now providing about 17 percent of all the electricity used by Xcel Energy customers — more than four times the national average.
The future of wind power in Colorado, however, is uncertain as the U.S. Congress has failed to extend a key wind project tax credit and Xcel says it has all the renewable energy it needs to meet state requirements.
"Wind will be an important part of our energy mix," said Frank Prager, Xcel's vice president for environmental policy. "But it has to become competitive on its own."