The combined cooling, heating, and power (CCHP) systems play an important role in the reduction of carbon
emissions and the increase of energy efficiency for businesses and social organizations. Because of its
potentials, tri-generation system has become a preference during the last decade. In this paper a hybrid trigeneration
system is proposed for a university campus. The system is also important because it uses renewable
energy sources as well as non-renewable energy sources. The objective of this paper is to propose an
optimization model for this new Tri-generation system