Study of Dresden's ITG Institute

A study of the usability and perspectives of electric radiant heating systems in energy-efficient buildings in the Czech Republic and in Europe.
Model building, simplified illustration
Direction of energy demand calculations in accordance with EN 15316 / DIN V 18599 vs. direction of energy flow.
Cost balance, Germany
Cost balance, Czech Republic; Missing columns 3 and 7: Flow water heaters are uncommon in CZE due to electricity base prices depending on the amperage requirement of the building
Cost balance, France
Cost balance, the Netherlands
Cost balance, Sweden

With decreasing energy consumption for the heating of residential buildings by means of increasing thermal insulation and air tightness, grid power becoming greener and photovoltaic systems (PV) becoming cheaper, the combination of electrical heating and PV may become a more viable option from both an economic and an ecologic perspective.

On behalf of the Bundesverband Flächenehizungen und Flächenkühlungen e. V. (BVF; Federal Association of Surface Heating and Surface Cooling), ITG has compared several heat generation options (fuel based as well as fully electric) combined with photovoltaic systems in terms of

  • energy efficiency,
  • cost effectiveness and
  • the chosen method of crediting the usable PV output.

The present study converts the abovementioned considerations to exemplarily chosen European countries. This conversion accounts for national conditions regarding weather, primary energy and relevant costs – e. g. adjustment of net/final energy demand and PV output, use of country-specific primary energy factors, energy prices and investment costs. However, country-specific legislation, subsidies / support schemes and such will not be researched.

Complete study you can find here.