Wyo. Stat. § 37-2-121
If upon hearing and investigation, any rate shall be found by the commission to be inadequate or unremunerative, or to be unjust, or unreasonable, or unjustly discriminatory, or unduly preferential or otherwise in any respect in violation of any provision of this act, the commission, within the time periods provided under W.S. 37-3-106(c) may fix and order substituted therefor a rate as it shall determine to be just and reasonable, and in compliance with the provisions of this act. The rate so ascertained, determined and fixed by the commission shall be charged, enforced, collected and observed by the public utility for the period of time fixed by the commission. The rates may contain provisions for incentives for improvement of the public utility's performance or efficiency, lowering of operating costs, control of expenses or improvement and upgrading or modernization of its services or facilities. Any public utility may apply to the commission for its consent to use innovative, incentive or nontraditional rate making methods. In conducting any investigation and holding any hearing in response thereto, the commission may consider and approve proposals which include any rate, service regulation, rate setting concept, economic development rate, service concept, nondiscriminatory revenue sharing or profit-sharing form of regulation and policy, including policies for the encouragement of the development of public utility infrastructure, services, facilities or plant within the state, which can be shown by substantial evidence to support and be consistent with the public interest. If the commission approves any form of cost-tracking mechanism pursuant to this section for a public utility to recover changes in electric supply costs between rate cases, which costs are in the complete or partial control of the utility, the mechanism shall provide for a sharing of those costs between the public utility and its customers.
W.S. 37-2-121