Power development Competitive Power Ventures, Silver Spring, Md., will move forward to build a 762-MW natural-gas-fired plant in southwestern Virginia after state regulators scaled back Appalachian Power Co.'s plans to buy capacity from out of state.

The Smyth County project, set to cost between $850 million and $900 million, is set to be on line by mid-2015, officials say.

Appalachian Power, an American Electric Power subsidiary, operates in Virginia, West Virginia and Tennessee. CPV also has proposed similarly sized plants in Maryland and New Jersey.