Established in 1985, Aegis Energy Services Inc. is a full-service provider of combined heat and power systems (CHP) that generate heat and electricity using clean, efficient natural gas powered engines. Based in Holyoke, Mass., it offers complete electrical and mechanical services. Each cogeneration module includes a natural gas-fueled engine, induction generator, microprocessor control panel, protective switchgear and heat recovery equipment. The company s shared savings program designs, installs, services and operate a modular cogeneration system at no cost to its clients facility.