Optimizing Energy-Saving Measures in New Residential Buildings Regarding Life-Cycle Costs

This contribution is focused on the issue of the application of energy-saving measures in the construction of new residential properties and their optimal combinations with regard to the life-cycle costs of these buildings. The aim of the research is to create a methodological basis for considering the economic and financial impacts of various combinations of energy-saving measures, aiming at the optimization of these measures and the sustainability of developer projects. The research methodology is based on the principle of building life-cycle costs, which serve as a key criterion for the process of choosing the optimal combination of energy-saving measures and for comparing a conventional solution with an innovative solution including the application of energy-saving measures. The result of the research is the methodological approach for the design of technologically proven combinations of energy-saving measures, which will lead to optimization of the life-cycle costs with regard to the reference variant represented by a conventional solution. This approach is subsequently verified on three case studies of residential properties with a proposal for the optimal combination of energy-saving measures in the form of photovoltaic panels and a water-air heat pump. The added value of the paper consists of the possibility of optimizing the building construction project from the point of view of energy-saving measures already in the design phase.

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