Study On Gains Allocation In Shared Savings Energy Performance Contracting Project

In recent years,with the rapid development of the global economy,the situation of energy and environment becomes more and more severe.A new type of energy-saving management method,Energy Performance Contracting(EPC)came into being,and soon became the main mode for energy-saving emission reduction in western developed countries.In China Energy Performance Contracting has also gone through more than 20 years with constantly developing,the government has successively issued a series of policies to promote its application in China.As for the application status of EPC in China,the shared energy savings contract model is the most widely used.Because it can greatly stimulate the enthusiasm of high-energy-consuming enterprises to carry out energy-saving renovation,which can also greatly reduce the risks and economic pressures of energy-saving renovation.However,in the operation process,there are still problems like energy metering monitoring needs to be enforced,energy saving measurement standards are still unclear,Energy Service Companies(ESCo)have high financial risks,and cost savings distribution methods are difficult to coordinate,which restricts further development of the shared energy savings EPC model.Among them,whether the ESCo and its client enterprise can reach a fair and reasonable cost savings distribution amount has a direct impact on the success of the project with expected energy-saving income.This thesis takes the shared energy savings EPC project as the research object.Firstly,through the comparative analysis of the shared energy savings model and the other two,summarize its characteristics and operational process,and analyse its problems in the applicability and operation process in China.Secondly,make it clear that the cost savings allocation subjects of the shared energy savings EPC project are the ESCo and its client enterprise.The two parties make decisions on the three contract variables which are cost saving sharing ratio,contract period length and initial investment in the contract negotiation process,to determine the specific allocation of energy savings.Then,select the Stackelberg’s duopoly game theory which best reflects the cost savings distribution process between ESCo and its client enterprise.Construct the energy cost savings distribution model under three different leading modes,like ESCo leading,client enterprise leading and centralized decision-making,to provide reference for scientific decision-making.Finally,an shared energy savings EPC project of a steel enterprise power plant is selected as an example to carry out numerical calculation and result discussion.The genetic algorithm in MATLAB software is used to solve the constraint nonlinear optimization problem,and with different leading modes the optimal contract decisions are made.The influence of different leading modes are analysed,and the main parameters which reflect the professional technical level of ESCo and the client’s initial energy consumption level are also discussed.Based on the results,aiming for government level,enterprise level and the industry level respectively,some relevant countermeasures and suggestions for promoting the application of EPC are proposed.