69-8-210. Public utilities -- electricity supply -- environmentally preferred resources. (1) The commission shall establish an electricity cost recovery mechanism that allows a public utility to fully recover prudently incurred electricity supply costs, subject to the provisions of 69-8-419, 69-8-420, and commission rules. The commission may include other utility costs and expenses in the cost recovery mechanism if it determines that including additional costs and expenses is reasonable and in the public interest. The cost recovery mechanism must provide for prospective rate adjustments for cost differences resulting from cost changes, load changes, and the time value of money on the differences.
(2) Notwithstanding any service options that the commission may require, a public utility shall offer its customers the option of purchasing a product composed of or supporting power from certified environmentally preferred resources that include but are not limited to wind, solar, geothermal, and biomass, subject to review and approval by the commission. The commission shall ensure that these resources have been certified as meeting industry-accepted standards.