; and (ii) deliveries of natural gas to a lessee, tenant, or affiliate of a local distribution company shall not be considered to be deliveries to natural gas consumers. (17) Third-party efficiency provider The term third-party efficiency provider means any retailer, building owner, energy service company, financial institution, or other commercial, industrial, or nonprofit entity that is capable of providing electricity savings or natural gas savings in accordance with subsections (e) and (f). (18) Waste heat energy savings (A) In general The term waste heat energy savings means a reduction in electricity or natural gas consumption that results from a modification of an industrial or commercial system that commenced operation before the date of enactment of this section, in order to recapture electrical, mechanical, or thermal energy that would otherwise be wasted, as determined in accordance with regulations promulgated by the Secretary. (B) Inclusion Such savings shall be included as part of customer facility savings. (c) Establishment of program (1) Regulations Not later than 1 year after the date of enactment of this section, the Secretary shall, by regulation, establish a program to implement and enforce the requirements of this section, including by— (A) establishing measurement and verification procedures and standards under subsection (f); (B) establishing requirements under which retail electricity suppliers and retail natural gas suppliers shall— (i) demonstrate, document, and report the compliance of the retail electricity suppliers and retail natural gas suppliers with the performance standards under subsection (d); and (ii) estimate the impact of the standards on current and future electricity and natural gas use in the service territories of the suppliers