Climate energy index and building energy index: new indices to assess and benchmark building energy performance

Two globally applicable energy indices, Climate Energy Index (CEI) and Building Energy Index (BEI) were developed as a means of quantifying the climate impact on building energy performance and distinguishing climate related and climate unrelated energy end uses. It provides a common basis for comparisons of building energy performance and different design strategies in a simple and independent fashion. The paper describes the derivation of the indices calculation methods and presents case study results based on two types of building models. Results of a series of independently peer reviewed validation tests are also presented.