Old Dominion Electric Cooperative said Tuesday that it will seek approval from Maryland regulators to build an electric power plant in Cecil County.

The Virginia-based Old Dominion supplies power to about 550,000 households and businesses through 11 cooperatives in Maryland, Virginia and Delaware, including the 52,000-member Choptank Electric Cooperative on the Eastern Shore.

The nonprofit said its proposed plant would be constructed near Rising Sun, at its Rock Springs facility. The new plant — to be fueled by natural gas — would generate about 1,000 megawatts of power. That's enough electricity for about 390,000 homes a year, Old Dominion said.

Lisa Johnson, chief operating officer at Old Dominion, said officials expect to apply to the state's Public Service Commission in May to build the facility. Owning more of the power production should help members, she said.

"We believe that it provides a more stable cost environment," she said.

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