Idaho Code § 61-336
The commission may authorize any public utility that is an electrical or natural gas corporation to file and place into effect schedules establishing rates or charges for energy conservation measures, services or payments provided to individual property owners or customers. Application of the schedule shall be subject to agreement between the public utility and the property owner or customer receiving service at the time the conservation measures, services or payments are initially provided. The schedule may include provisions for the payment of the rates or charges over a period of time and for the application of the payment obligation to successive property owners or customers at the premises where the conservation measures or services were installed or performed or with respect to which the conservation payments were made. The public utility shall record a notice of the payment obligation with the county recorder in the county where the property is located. The commission may prescribe by rule other methods by which the public utility shall notify property owners or customers of any such payment obligation.
Idaho Code § 61-336