Energy use in non-residential buildings - possibilities for smart energy solutions
MetadataShow full item record
Original versionSINTEF Energi. Rapport. 39 p. Sintef Energi AS, 2015
The first part of this report discusses the energy use in non-residential buildings through aliterature survey. The questions addressed are the division of energy use according todifferent purposes, correspondence between measured and calculated energy use and futuretrends in the energy use. The building categories discussed in more detail are officebuildings, commercial buildings, hospitals and educational buildings. The energy use inthese building types varies greatly, both considering the specific energy use, and energy useaccording to the purpose. When comparing measured and calculated energy uses, bigdeviations have been reported in all the discussed building categories such that the calculatedenergy is clearly lower than the measured use for new buildings, and vice versa for oldbuildings. To be able to understand this deviation and to better model the building energyuse, better measurement data, as well as more accurate input data are needed.The second part of the report presents case examples of buildings and building complexeswith integrated energy solutions and systems for waste heat utilization. From the case studiesit could be concluded that such system solutions generally consist of and energy storage, heatpumps, and a connection to the district heating system to cover the peak load. Utilization ofwaste heat is seen as a good energy efficiency measure, enabling reductions in both heatingand cooling demands, as well as reducing the overall energy costs. Interaction of the energysupply of different buildings for better utilization of waste heat is however so far littlepracticed.