Effect of uncertainty of energy demand on optimal facility scheme and economical efficiency of combined cooling heating and power systems

Uses probability distribution based on representative energy demands to describe the uncertain demands. Establishes an optimization model for the combined cooling heating and power（CCHP）system with expected value of annual cost as objective function. With a hotel example, studies the influence of uncertain demands on facility scheme and economical efficiency of CCHP system. The result shows that the uncertainty of demands affect the core facilities slightly while affect the assistant facilities largely, and with increase of uncertainty of energy demands, the initial investment and operation cost increase and the economic advantages of CCHP system compared with conventional system decrease to some extent.