M. on . Mechle, “Combined Cycle/TES Plant Can Save $1 ,244,474 per Year: P roposed Cogen Syste m for a 1,lO O,OOO -ft 2 Medica l Com plex H as a P ayback Period of 2.6 Year s”, DGAEJ, vol. 12, no. 3, pp. 23–60, Jun. 1997.