As used in this subchapter, unless the context otherwise requires, “energy conservation programs and measures” may include, but shall not be limited to:
(1) Programs of residential, commercial, or industrial insulation, including measures to facilitate the financing of such insulation;
(2) Programs which result in the improvement of load factors, contribute to reductions in peak power demands, and promote efficient load management, including the adoption of interruptible service equipment and alternative or additional metering equipment designed to implement new rate structures; and
(3) Programs which encourage the use of renewable energy technologies or sources, including solar energy, wind power, geothermal energy, biomass conversion, or the energy available from municipal, industrial, silvicultural, or agricultural wastes.