Cogeneration facility means an electric powerplant that produces:
(1) Electric power; and
(2) Any other form of useful energy (such as steam, gas or heat) that is, or will be used, for industrial, commercial, or space heating purposes. In addition, for purposes of this definition, electricity generated by the cogeneration facility must constitute more than five (5) percent and less than ninety (90) percent of the useful energy output of the facility.
10 CFR § 500.2
For purposes of this part and parts 501-507 term: