Integrated Energy System Planning & Operation Evaluation Based on Multiple Economic Indexes

Under the requirement of “green energy consumption” integrated energy system (IES) appeared as one of the most significant and powerful solutions, dispatching various kinds of available distributed energy resources to meet the demand, thus promoting the renewable energy consumption, as well as reducing the green house gas emission and the generation cost. However, due to the complexity and high cost of IES construction, the selection of different kinds of equipment and the cooperation of different energy parts are still problems limiting its popularization. This paper introduces a practical approach on system configuration planning and dispatch optimization for IES, which consider multiple economic indexes simultaneously based on local demand and installation conditions. This approach optimizes the energy equipment selections from the perspective of types and installed capacities, thus offers different results of equipment combinations, operational and economic conclusions and suggestions based on the system running simulations under typical days in different seasons, including heating, cooling and regular seasons. Two case studies are shown with this proposed approach on an industrial IES project in China. The results provide the IES investors with primal configuration plan and system design for IES based on considered economic indexes, as well as detailed dispatch plans for future investment.