S.C. Code Ann. § 58-5-210: Supervision and regulation of rates and service.

The Public Service Commission is hereby, to the extent granted, vested with power and jurisdiction to supervise and regulate the rates and service of every public utility in this State, together with the power, after hearing, to ascertain and fix such just and reasonable standards, classifications, regulations, practices and measurements of service to be furnished, imposed, observed and followed by every public utility in this State and the State hereby asserts its rights to regulate the rates and services of every "public utility" as herein defined.