W. Va. Code § 24-2-1q

Recognizing that coal inventories at coal-fired power plants may increase and decrease over time, in order to ensure grid resiliency and homeland security, each generating public utility shall plan incoming and outgoing coal so as to maintain an average annual minimum 30-day aggregate coal supply on site at each coal-fired power plant. The commission may propose rules for legislative approval in accordance with the provisions of §29A-3-1 et seq. of this code to carry out its duties and obligations as set forth herein.