One of the few shining moments for Texas environmentalists was the passage of a state mandate to dramatically increase the use of renewable energy for power generation. This law has been credited with the stunning growth of wind energy in the petrochemical capital of the world. But not so fast . . . Reliant Energy is working to revisit the intent of the state's wind rules.

Texas' robust wind power industry could be stifled by new market rules being pushed by Reliant Energy before state regulators, consumer advocates and the Environmental Protection Agency are warning.