Research on comprehensive decision-making method of heating project based on combined weight method

It is effective to reduce haze in winter of northern China by changing the heat supply mode. Thus, the evaluation of heating project are essential. Firstly, a comprehensive index system for heating project was built. Secondly, a combined weight method based on interval analytic hierarchy process (IAHP) and interval principal component analysis (IPCA) was put forward to overcome the subjectivity of evaluation by IAHP. Lastly, the case study suggested that heating with electricity takes great advantage. The proposed decision-making method can evaluate the heating project effectively and provide scientific support for choosing heat supply mode.