Zgadzam się
Nasza strona zapisuje niewielkie pliki tekstowe, nazywane ciasteczkami (ang. cookies) na Twoim urządzeniu w celu lepszego dostosowania treści oraz dla celów statystycznych. Możesz wyłączyć możliwość ich zapisu, zmieniając ustawienia Twojej przeglądarki. Korzystanie z naszej strony bez zmiany ustawień oznacza zgodę na przechowywanie cookies w Twoim urządzeniu.
This work has been developed under the project 1.5 of “Ricerca di Sistema Elettrico Nazionale”, within the Program Agreement between the Italian Ministry of the Environment and Energy Security and ENEA, three-year implementation plan 2022–2024.
Within the residential sector, Domestic Hot Water (DHW) production represents the highest
energy-intensive end-use after the space heating. Energy consumption for DHW production in
residential buildings depends not only on the efficiency of the production, distribution and supply
systems, but also on the occupants’ behaviour and characteristics. For this reason, it is crucial to
increase users’ awareness in order to induce virtuous behaviours and reduce excessive uses of
DHW. In this context, individual metering and consumption-based billing can be extremely useful
and low-cost tools for reducing energy and water wastes and increasing the end-use energy ef-
ficiency in buildings. This paper is aimed at investigating the effect of individual metering sys-
tems on DHW consumptions in the residential sector. For this purpose, the operating parameters
of 16 substations of a high-temperature district heating (DH) network supplying 137 multi-family
buildings were monitored daily for over 14 years, during which individual DHW meters were
installed and consumption-based billing was introduced. It has been found that after the instal-
lation of individual DHW meters the average daily heat consumption for DHW production
decreased by 14% and that the DHW volume withdrawn by the buildings decreased by 32%.
Those variations were found to be statistically significant.
