For years, the inverter heat pump was considered the final piece of the puzzle in an energy-efficient swimming pool project. Anyone who installed a heat pump had their system "in order." By 2026, that reasoning will be outdated. The Belgian swimming pool market has matured, and professionals today are looking beyond the heat source alone. Energy efficiency is no longer about a single device, but about the interplay between hydraulics, control, buffering, insulation, and actual use.
We are now in the era of the integrated energy ecosystem, in which the swimming pool actively participates in the overall energy management of a home, sports complex, or recreational site. This requires a different approach to design, installation, and explanation to the end user.
From device selection to system performance
The heat pump will remain an important part of the installation in 2026, but it will no longer be the distinguishing feature. What will make the difference is how efficiently the entire system functions. Pressure losses in pipes, incorrectly dimensioned pumps, poorly matched filters, or a lack of thermal buffering will cause even high-quality heat pumps to perform below par. More and more swimming pool professionals are noticing that customers are becoming more critical. Not only private individuals, but also operators of campsites, hotels, fitness centers, and public swimming pools want to know what an installation really costs them to run. This question shifts the conversation from equipment choice to system performance and long-term return on investment.
EN 17645 as an objective benchmark
In this context, the European standard EN 17645 is becoming increasingly important. What used to be primarily a technical reference framework will evolve in 2026 into an objective way of providing insight into energy performance. The standard allows swimming pools to be classified based on their energy efficiency, regardless of subjective claims.
Read also: The swimming pool of tomorrow: sustainability as a driver for innovation in 2026
For swimming pool builders and installers, EN 17645 thus becomes a tool for making quality tangible. Similar to an EPC label in residential construction, the standard provides a clear framework for comparing installations and substantiating choices. In combination with Total Cost of Ownership (TCO), this creates a strong argument: an energy-efficient hydraulic system with low pressure losses and correct control pays for itself more quickly in the long term than a cheaper installation with higher consumption.
The digital meter makes energy management tangible
With the widespread rollout of digital meters in Flanders and the introduction of capacity tariffs, energy management is no longer an abstract concept. Swimming pools are among the heaviest consumers within a building or site. Filter pumps, heat pumps, air treatment, and water treatment have a direct impact on peak consumption and energy costs. In 2026, we will therefore see swimming pools increasingly being integrated into the energy management system (EMS) of a home or complex. Through smart control and IoT solutions, swimming pool installations communicate with PV installations and other consumers. The swimming pool thus becomes a flexible part of the energy system, rather than a constant load. A concrete result is that surplus solar energy is used locally. Instead of feeding it into the grid, the water is temporarily heated or the filtration system is run at a different time. The swimming pool acts as a thermal buffer, storing energy for later use without having to purchase expensive grid power.
Heat recovery as the new standard for intensive use
Public swimming pools and commercial operators are increasingly focusing their attention on heat recovery. In installations with high occupancy rates and frequent flushing cycles, large amounts of energy are lost unless they are actively recovered. Modern heat exchangers make it possible to utilize heat from filter rinse water before it is discharged. This technology structurally reduces energy demand and will increasingly become standard in renovation and new construction projects for campsites, wellness centers, hotels, and sports infrastructure by 2026. In addition, there is growing interest in connections to local heating networks or residual heat from nearby businesses. What was exceptional a few years ago is now more often included in the design phase of larger swimming pool projects.
A more favorable framework for public investment
The policy framework also plays an important role for local authorities and public operators. The Flemish Swimming Pool Decree and the project calls from Sport Vlaanderen continue to focus on sustainable operation. Investments in energy efficiency, heat recovery, and smart control are increasingly eligible for support. In certain cases, the subsidy can cover a significant portion of the investment cost, making structural energy interventions financially feasible. This explains why public swimming pools will be more likely to opt for integrated energy concepts rather than purely technical repairs in 2026.
In summary
In 2026, we will not be setting aside the heat pump, but placing it in a broader context. Energy efficiency in swimming pools is no longer about a single device, but about the entire system: hydraulics, control, buffering, heat recovery, and objective standardization. Those who understand and master this energy ecosystem will create swimming pools that are not only technically efficient, but also economically and operationally future-proof.
Discover more at PoolXpo
Would you like to better understand how energy efficiency in swimming pools in 2026 goes beyond simply choosing a heat pump? On Thursday, March 5, PoolXpo will bring together all professionals who are active in or around swimming pools. From swimming pool builders, installers, and suppliers to public swimming pool employees, lifeguards, technicians, maintenance and cleaning staff, managers, and instructors. Local authorities and organizations with swimming pools are also represented, as are companies that operate swimming pools at campsites, holiday parks, fitness centers, hotels, spas, and wellness centers.
During the trade fair, insights and practical experiences will be shared on integrated energy systems, smart control, heat recovery, standardization, and Total Cost of Ownership.
PoolXpo is the only trade fair for and by the Belgian swimming sector and takes place in the Brabanthal in Leuven. The fair is made possible entirely by the participating companies. A visit is completely free of charge: access to the exhibition floor, all knowledge sessions, snacks, drinks, and parking are included.
You can register via this page.