Decision support to choose renovation actions in order to reduce house energy consumption – An applied approach. (15th November 2016) - Taillandier, Franck
Abstract: This paper focuses on improving the thermal performances of a set of houses built around 1970 and aims to develop a method for decision support regarding the choice of renovation solutions. The approach goes through two steps based on a multicriteria analysis. The first step allows the owner to choose a work package that meets his expectations at best. The second step is to specify the selected works by providing more detailed technical solutions, like defining the type of insulation (glass wool, sheep wool, etc.). The solution assessment on the various criteria is performed according to models, expert values or rules set by the experts involved in the project. One of the major challenges of the decision tool is to enable a merging of the project stakeholder points of view, based on a deep interaction between experts and owners. The output is not limited to the prescription of a renovation solution but enriches the house owner reflection in order to guide her/him into the whole renovation process. The article presents the approach, the method and an application to a house. Highlights: An approach, a method and a tool to help owner to select house energy renovation actions are proposed. The scientific developments were carried on with a constant attention paid on the the end-user needs. They are based on the multicriteria decision method ELECTRE III in a stochastic version. An application highlights the interest of the chosen approach and its capacity to deal with real world problem.