Europe's district cooling market expands as AC alternatives gain traction
European cities are scaling up district cooling networks and urban redesigns to comply with new EU energy mandates and curb the power drain of traditional air conditioning.
European district cooling infrastructure expanded by more than 3 per cent in 2023 as municipalities scrambled to meet new regional efficiency mandates. The growth reflects a nascent but meaningful shift in how the continent plans to manage rising temperatures without derailing its green transition pledges.
Traditional air conditioning still dominates the European cooling market due to the higher costs and limited availability of alternatives. However, regulatory pressure is mounting. The European Commission’s Energy Efficiency Directive now requires cities with populations exceeding 45,000 to draft local heating and cooling plans.
This mandate is creating a tangible market for alternative technologies. District cooling systems, which distribute chilled water through underground pipes, use less energy than individual building units and can be powered by local water sources. According to Euroheat & Power’s 2025 District Heating and Cooling Market Outlook, demand for these networks is rising steadily.
Paris is currently home to one of the world’s largest district cooling networks. The 120-kilometre system, originally developed in the 1990s, uses water from the Seine River to chill public buildings, hospitals, and offices. Such infrastructure represents significant long-term capital investment but offers lower operational carbon footprints.
The urgency for these alternatives is driven by the sheer scale of future energy demand. The United Nations Environment Programme forecasts that global installed cooling capacity will triple by 2050, which would more than double electricity consumption. Furthermore, traditional refrigerants are potent greenhouse gases, creating both direct and indirect emissions that conflict with EU climate targets.
Outside of centralized networks, private investment is also flowing into air-to-air heat pumps, which are becoming increasingly affordable as demand scales. These systems offer both heating and cooling, providing a dual revenue stream for manufacturers and installers.
Simultaneously, public spending is shifting toward passive cooling infrastructure to reduce baseline demand. Paris is increasing its cooling islands from 800 in 2019 to over 1,400 by 2026. Cities like Rotterdam and Utrecht are installing green roofs, while Barcelona is deploying artificial intelligence to manage ventilation and temperature.
While upfront costs remain a barrier to rapid adoption, the combination of strict EU regulations and the physical reality of more frequent heatwaves is structurally reshaping the European cooling market.
