Duke Energy is an electric power holding company. It operates through three business segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure, and Commercial Renewables. The Electric Utilities and Infrastructure segment provides retail electric service through the generation, transmission, distribution, and sale of electricity to municipalities, electric cooperative utilities, and other load-serving entities. The Gas Utilities and Infrastructure segment conducts natural gas operations and serves residential, commercial, industrial, and power generation natural gas customers. The Commercial Renewables segment acquires, develops, builds, operates, and owns wind and solar renewable generation. Its portfolio includes nonregulated renewable energy and energy storage businesses.