Complex sentence: A huge coal-fired power plant sits on the Clinch River at Carbo in Russell County, Virginia; it was built in 1957 and is owned by Appalachian Power, a part of American Electric Power.
Split into simpler sentences: A huge coal-fired power plant sits on the Clinch River at Carbo in Russell County, Virginia. It was completed in 1957, and it is owned by Appalachian Power, a part of American Electric Power.