Dominion Energy has an existing electric transmission corridor running from the Chesterfield Substation in Chesterfield County to the Lakeside Substation in Henrico County. A single-circuit 230 kilovolt (kV) transmission line that runs approximately 21 miles between these substations is nearing the end of its service life and needs to be replaced with new structures that meet current safety and industry standards. Rebuilding the line also resolves an identified capacity violation of mandatory NERC reliability standards.