40 U.S.C. § 17902: Sale of electric energy

the electric energy to be sold is generated by an existing coal-fired generating facility; the electric energy to be sold is surplus to the federal agency’s needs and is in excess of the electric energy specifically generated for consumption by, or necessary to serve the requirements of, another federal agency; the cost to the ultimate consumers of the electric energy to be sold is less than the cost that, in the absence of the sale, would be incurred by those consumers for the purchase of an equivalent amount of energy; and the sale will reduce the total consumption of oil or natural gas by the non-federal person purchasing the electric energy below the level of consumption that would occur in the absence of the sale. the costs of producing the electric energy by coal generation; and the costs of producing electric energy by the oil or gas generation being displaced.