Dominion Energy has announced plans to construct a solar farm in Middlesex County.

The project will be located on a 120-acre site near the intersection of General Puller Highway (Route 33) and Bob’s Hole Road (Route 625), Hartfield, said Dominion spokesman Rob Richardson.

Plans are for construction to begin late this year, Richardson said, with commercial operations underway by the end of 2018.

Dominion plans to have more than 55,000 solar panels on the site, enough to power 3,750 homes at peak output, Richardson said. The panels will have single axis tracking technology to gather sun rays.

Under a 25-year agreement, the University of Virginia will purchase the entire output of the Middlesex solar facility. The new facility, which was developed by Coronal Energy with a regional office in Charlottesville, will produce an estimated 15 megawatts of alternating current, or about 9 percent of UVA’s electric demand. Dominion previously announced plans for a 160-acre Hollyfiel...