| Summary: | Climate change has made energy efficiency and reduction of energy consumption an important topic currently. Justification for this study is the need to understand energy consumption and effects of different energy efficiency renovations in different climate conditions for defining most useful energy renovations. Understanding the effectiveness of different energy renovations is important for achieving European Union’s targets for highly energy efficient and decarbonized building stock by 2050. Research questions of the study is how different climate conditions influence the energy demand and performance of a detached single-family building and how different energy renovations influence the energy efficiency in simulated locations. Results of energy efficiency renovations are compared to energy saving amounts representing minor, moderate, deep and nZEB renovations. Locations chosen for the simulations are Sodankylä (Finland), Helsinki (Finland), Luxembourg and Barcelona (Spain). Implementation of energy efficiency renovations including building envelope improvements, heating system renovation with ground-source heat pump (GSHP) and addition of renewable energy source with solar PV panels is done in simulations to study the impact and energy savings of different renovation methods. Combination of these renovation measures are also studied. Results showed significant energy efficiency increases across the renovation methods. Largest overall benefit for singular renovation was achieved with GSHP, which results ranged from 35% to 47% decrease in delivered energy. Solar PV panels achieved significant results in Barcelona with decrease of 40% delivered energy, while result in Sodankylä was only 9% decrease. Largest achieved decrease in delivered energy was with combination of all the studied renovation methods, which achieved decrease in delivered energy ranging from 64% to 78%. Studied scenarios produced different results in different climate conditions, which also produced differing renovation classifications. The ...
|
|---|