02000nas a2200205   4500008004100000245008800041210006900129490000800198520130700206653002701513653002001540653002201560653002201582653002701604653002001631100002101651700001901672700001701691856008601708       2017                        eng d00aIEA EBC Annex 53: Total Energy Use in Buildings – Analysis and Evaluation Methods0 aIEA EBC Annex 53 Total Energy Use in Buildings Analysis and Eval0 v1523 a<p>One of the most significant barriers to achieving deep building energy efficiency is a lack of knowledge about the factors determining energy use. In fact, there is often a significant discrepancy between designed and real energy use in buildings, which is poorly understood but are believed to have more to do with the role of human behavior than building design. Building energy use is mainly influenced by six factors: climate, building envelope, building services and energy systems, building operation and maintenance, occupants’ activities and behavior, and indoor environmental quality. In the past, much research focused on the first three factors. However, the next three human-related factors can have an influence as significant as the first three. Annex 53 employed an interdisciplinary approach, integrating building science, architectural engineering, computer modeling and simulation, and social and behavioral science to develop and apply methods to analyze and evaluate the real energy use in buildings considering the six influencing factors. Outcomes from Annex 53 improved understanding and strengthen knowledge regarding the robust prediction of total energy use in buildings, enabling reliable quantitative assessment of energy-savings measures, policies, and techniques.</p>10aenergy data definition10aenergy modeling10aenergy monitoring10aoccupant behavior10aPerformance Evaluation10areal energy use1 aYoshino, Hiroshi1 aHong, Tianzhen1 aNord, Natasa  uhttps://simulationresearch.lbl.gov/publications/iea-ebc-annex-53-total-energy-use