Application of multiple attribute decision-making and grey relation projection to heating scheme selection

 For the heating system problems in an existed community, based on the regional resources condition analysis, puts forward three plans, including the gas boiler, the seawater-source heat pump and gas peak-shaving boiler, the seawater-source heat pump and air-source heat pump peak-shaving. Determines the weights of the energy saving, economy and environmental protection factors by the weighting approach combination. Adopts the multiple attribute decision-making method and grey relation projection method to find out the prior plan. The result shows that the combination of natural gas and renewable energy in heating system can achieve the goal of multi-energy complementary and mutual benefit, which provides the references for the existed community heating scheme reformation.