Rock Hill, SC Solar Energy: Panel Permits (2026)

Solar PV permitting in Rock Hill follows a standard two-permit pattern under the state-adopted IRC. The building permit reviews structural loading of the existing roof under IRC Chapter 8 (roof-ceiling construction) and the applicable IRC wind and snow loads — Rock Hill's design loads reflect the city's Piedmont location and modest ground snow load. Plan review may require a stamped letter from a South Carolina-licensed structural engineer for older homes where rafter sizing or attachment cannot be verified from existing drawings. The electrical permit covers Article 690 of the National Electrical Code (Solar Photovoltaic Systems) as adopted in the state electrical code — disconnect requirements, rapid shutdown under NEC 690.12, conductor sizing, grounding, and labeling. Interconnection with the serving utility (City of Rock Hill Electric Utility for much of the city, or Duke Energy / York Electric Cooperative in adjacent service areas) follows the utility's net-metering tariff approved under S.C. Code §58-39-110 et seq. (Distributed Energy Resource Program Act) and S.C. Code §58-40-10 et seq. (Net Energy Metering). The South Carolina Energy Freedom Act (Act 62 of 2019, amending §58-39-110 et seq. and adding §58-40-10 et seq.) restructured net metering and set program caps and methodologies; the Public Service Commission has issued implementation orders. Solar access rights are protected as a matter of private agreement under South Carolina's solar easement provisions in Title 27 (Property and Conveyances), which allow property owners to record easements guaranteeing access to sunlight across boundaries that bind successor owners. Historic district properties (Rock Hill has multiple historic districts) face additional architectural review where the Historic Preservation Commission has jurisdiction. Rock Hill Planning and Development issues both building and electrical permits.