Every portion of the schedule of an electric light, natural gas, and gas company and every order of the public utilities commission relating to curtailment of residential service by such a company shall apply uniformly to all residential consumers, as defined in section 4911.01 of the Revised Code, and shall not distinguish as to whether the residence of such consumers utilizes a solar, wind, or hydrothermal energy system, as defined in section 1551.20 of the Revised Code.