Autors: Zlateva P., Vassilev, M. P., Ivanov, M. P., Terziev, A. K.
Title: Improving the Energy Performance of Timber Houses in a Resort Village
Keywords: energy consumption, energy costs, energy performance, energy-savings, wood houses

Abstract: This study focuses on the analysis and improvement of the energy performance of the timber wood houses (33 in total) in a Bulgarian resort village. The assessment covers the building envelope, as well as the existing heating system, which includes electric storage stoves, convector electric heaters, and individual domestic hot water (DHW) boilers. The current annual electricity consumption for heating and DHW of 33 houses is 522 140 kWh (equivalent to 1 305 350 kWh of primary energy). The proposed solution includes the building envelope retrofit, the replacement of the heating system with wall-mounted gas boilers, the construction of new heating pipelines, and the installation of energy efficient heating units. According to the conducted model calculations, the estimated annual saving is EUR 100 018 (1 EUR = 1.95583 BGN), with estimated natural gas costs of EUR 13 606 and electricity costs of EUR 1 265 (for circulation pumps). The total reduction in energy costs is calculated at 87.1%. It is also expected to reduce CO2 emissions by 202.5 t/year. The results confirm the economic and energy efficiency of the proposed measure, resulting in a significant reduction in primary energy consumption and an increase in the buildings' sustainability.

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Issue

12th International Conference on Energy and Environment 2025: Towards Future Energy, CIEM 2025, 2026, Romania, https://doi.org/10.1109/CIEM67454.2025.11284577

Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus