In my graduation thesis I analysed the implementation of the Energy Performance of Buildings Directive in the national plans of different EU members and the possibility of executing nearly zeroenergy buildings in Slovenia.
The study covers a Slovenian legislation summary relating to the energy efficiency of the buildings and a presentation of the Austrian, Belgian, British, Croatian, Danish, Dutch, French, German and Italian national plans that are listing requirements regarding the nearly zero-energy buildings. I chose countries which either have similar climate circumstances to Slovenia or have specific requirements in their national plans.
I described different systems of renewable energy usage of biomass, geothermal energy, hydro energy, solar energy, environmental energy and wind energy. In addition, I examined the availability of renewable sources in Slovenia and their potential.
Having analysed the examples of single-family houses on different locations in Slovenia by comparing different energy products for heating, cooling and production of hot water as well as usage of construction and physical characteristics, I verified the potential of complying with the requirements for nearly zero-energy buildings. In these examples I have proven that the share of renewable energy sources, required by the national plan, could be secured by using the biomass, geothermal energy, solar energy and environmental energy.
At the end of my study, I presented the importance of building's location and the impact of different energy product types on the compliance with the requirements, defined in the national plan. The primary energy results are mainly influenced by the primary conversion factor, which depends on the energy product type and differs considerably across the chosen countries.
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