S.C. Code Ann. § 6-23-100

Because of pooling and reserve-sharing agreements between electric suppliers, public and private electric utilities and electric cooperatives, the General Assembly determines that electric generating facilities within the State are interrelated; therefore, it is necessary that the electric supplier generally serving the area in which the members of the joint agency are located be responsible for the dispatching of capacity and output and the scheduling of maintenance of a project owned by a joint agency in keeping with established utility practice, subject to contracts entered into for such capacity and output.