Thermodynamic Evaluation of Energy Consumption in Buildings

In the project alternative methods to the current set of rules from BOVERKET, the Swedish National Board of Housing, Building and Planning, will be used to evaluate a number of representative buildings.

Project name: Thermodynamic Evaluation of Energy Consumption in Buildings

Research specialisation: Future Energy Center

Primary funding organisation(s): Swedish Energy Agency

Secondary funding organisation(s): Swedish District Heating Association

Co-operating/Co-production partners: Gävle Energi, University of Gävle

Project leader: Björn Karlsson, Professor in Energy Engineering, Mälardalen University

Project start date: November 2013

Project end date: December 2017

Funding: 3.1 MSEK

Description of the project

The energy efficiency of buildings is controlled by a set of rules (BBR2012) from BOVERKET - The Swedish National Board of Housing, Building and Planning. It determines how much energy may be used for heating, hot water and building energy. Non-electrically heated buildings may have a factor 1.5 times higher energy use than electrically heated. This means that a building with a heat pump can be built less energy efficient than with district heating. The energy use is reduced by the energy from the solar panels or solar cells if the building can utilize the energy. Solar panels for heating is favored compared to PV for electricity because they have a higher yield. The Energy statistics classify the heat a heat pump takes in the surroundings as renewable solar energy. It is thermodynamically incorrect and contributes to a favorable treatment of ground heat. It is important to analyze alternatives to the BBR. In the project alternative methods will be used to evaluate a number of representative buildings.