Comparison of Calculation Methods of Renewable Energy Generated by Electric Heat Pumps

  • Rokas Tamasauskas Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
  • Edmundas Monstvilas Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
  • Raimondas Bliūdžius Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
  • Karolis Banionis Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
  • Kęstutis Miškinis Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Keywords: heat pumps, primary energy, renewable energy, non-renewable energy, energy performance of buildings

Abstract

Heat pumps are widely used in buildings due to high energy performance and environmental-friendliness. 2010/31/EU Directive of the European Parliament and Council requires assessing the consumption of primary energy generated from renewable sources when calculating the energy performance of buildings. However, the equation given in the 2009/28/EU Directive and guidelines 2013/114/EU of the European Commission does not take into account the amount of energy supplied by electric heat pumps into buildings. The paper presents the method that does not assess the energy input of primary sources for transforming electric power and for this reason, the calculations result in a lesser amount of energy than the ones obtained by the method of 2013/114/EU Directive. The calculation results proved that using merely heat pumps in nearly zero-energy buildings will not ensure the necessary amount of energy from renewable primary energy sources. Hence, to ensure the lacking amount of energy other renewable energy sources, such as solar panels, wind power plants, hydro power plants, biofuel, etc. are necessary to use.

DOI: http://dx.doi.org/10.5755/j01.sace.11.2.9986

Author Biographies

Rokas Tamasauskas, Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Laboratory of Building Physics, PhD student
Edmundas Monstvilas, Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Laboratory of Building Physics, Dr. Senior Researcher.
Raimondas Bliūdžius, Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Laboratory of Building Physics, Professor
Karolis Banionis, Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Laboratory of Building Physics, Dr.
Kęstutis Miškinis, Institute of Architecture and Construction, of Kaunas University of Technology, Laboratory of Building Physics
Laboratory of Building Physics, Dr.
Published
2015-06-30
Section
Articles