The gross heat efficiency of the incineration plants in Taiwan are between 23.9 – 9.1%, It means that totally 76 – 90% of refuse combustion energy are discharged to the atmosphere. Use surplus heat of the incineration plant to install new district cooling/heating system will increase gross efficiency of each plant and decrease Taipower’s summer peak load capacity. The scope of feasibility study are including following items: 1. Overall study the potential chance to build district heating/cooling system in the 24 incineration plants: After collection thermocycle’s operation parameters and boundary conditions of each plant, the heating/cooling load in the surrounding area of individual plant will be evaluated and screened prelimarily and then 5 potential plants will be selected. User side heating/cooling load requirement will be investigated and piping network will be studied, then surplus heat reuse proposed resolution for the 5 potential plants will be defined. The promotive feasibility by grading and ranking will be suggested finally for the 24 incineration plants. 2. Feasibility study for demonstration district cooling system of Nei-Hu Refuse Incineration Plants: The scope of study include turbine operation/performance data collection and analysis, exist plant space utilization and expanding location study, potential user and their cooling load estimation, surplus heat reuse proposal and its benefit, district cooling center function requirement and layout, chilled water piping sizing and routing survey, economic evaluation and special topics study, etc. 3. Foreign district cooling/heating system case collection and local suitability study. 4. Foreign regulation, cooperation model, incentive policy and promotion method of district cooling/heating system data collection.