| Issue |
E3S Web Conf.
Volume 710, 2026
54th AiCARR International Congress “Decarbonising our Future: Energy, Economic and Social Aspects of Smarter and Digitalized Buildings and Cities”
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|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 12 | |
| Section | Decarbonization of Building Services and Energy Integration 1 | |
| DOI | https://doi.org/10.1051/e3sconf/202671002002 | |
| Published online | 07 May 2026 | |
Energy refurbishment of a public indoor swimming pool
1 TEC ingegneria, 50144 Florence, Italy
2 KEP energy, 50133 Florence, Italy
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
The European Union's energy policy is strongly oriented towards decarbonization through the electrification of end-use energy consumption. Indoor swimming pools, as specialized buildings, are among the most energy-intensive facilities in terms of HVAC demand. This paper presents the energy renovation of a municipal swimming pool located in Florence (Italy), combining thermal insulation of the building envelope, fuel switch from gas to electricity, and installation of solar thermal and photovoltaic systems. A key design concept is an openable roof, which limits HVAC operation to the period from October to April. The indoor air system has been redesigned using micro-perforated ducts, and a relamping is also planned. The overall structural, architectural, and plant design has now been completed, and the intervention is expected to be financed through the "Sport e Periferie" call for proposals. For each intervention, this paper evaluates both the potential benefits and the implementation challenges, drawing on a comprehensive transient numerical model of the pool building and its associated HVAC. An energy-environmental assessment is presented, alongside a techno-economic analysis conducted as part of an energy audit. The final design represents the optimal compromise given operational and cost constraints, while enabling a significant reduction in CO2 emissions and atmospheric pollutants in a densely built-up urban area.
© The Authors, published by EDP Sciences, 2026
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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