Abstract:A medium-sized hotel in Shanghai is taken for an example and the actual power load of the hotel as the data basis for calculation, and four sets scheme of CCHP for the hotel are designed. After importing CCHP, the gains of the electricity supply and the heat supply are calculated respectively and 4 kinds of schemes are compared comprehensively to draw some useful conclusions, such as internal combustion engines and gas turbine has the higher economic benefits in various generation scheme; the heat supply return is much higher than the power supply return; when choosing specific unit of the brand and model, the unit cost of power generation should be emphatically considered.