The Public Service Company of Oklahoma (PSO), an electric utility, encourages residential energy efficiency under a variety of incentive programs. General rebates for HVAC equipment, appliances and building envelope measures are available to all residential PSO customers. Customers must first schedule and execute an energy audit of the home. Upon reviewing recommended upgrades, homeowners may select a contractor who will complete the agreed upon measures. All equipment efficiency, purchase and installation requirements must be met in order to qualify for rebates.