DOI: 10.15199/9.2022.1.1

Keywords: energy poverty, multi-family buildings, thermo-modernisation, renewable energy sources, energy efficiency, the cost of heat supply

Abstract

Meeting the climate goals requires action also for the existing buildings.

This paper analyzes the possibilities of reducing energy poverty focusing on technical aspects such as thermal modernization and application of RES in multi-family buildings. A case study based on an 18-year-old multi-family building was presented. The results were obtained in terms of reducing the heat demand of the building by 26%, as well as covering the demand for electrical energy in almost 85% in the common parts of the building and providing about 18% of energy for the preparation of DHW through a photovoltaic installation.

The discussed example shows that it is advisable to cover the existing buildings with thermal modernization measures and can lead to a significant reduction in the phenomenon of energy poverty.