Urban Cooling Networks Responding to France’s Heatwaves

Paris – June 29, 2026: France is currently experiencing one of the most severe heatwaves in its history. Since June 16, 2026, extreme temperatures of up to 45 degrees have persisted across most of the country. These extreme weather conditions have not only caused numerous health emergencies but have also posed serious challenges to the national energy infrastructure.

Against this backdrop, attention is increasingly turning to the effectiveness of urban cooling networks. Urban cooling networks regulate indoor temperatures by supplying buildings with cooled air using renewable cooling technologies. According to the third National Climate Change Adaptation Plan published in 2024, the use of these technologies is expected to expand significantly by 2035, tripling supply capacity. Currently, such cooling networks are mainly installed in large public buildings and commercial complexes, with hardly any application in ordinary homes.

The recent heatwave in cities such as Paris, Lyon, and Marseille, where temperatures above 40 degrees were recorded, underscores the need to expand them into residential areas. Energy supply issues also demonstrate the urgency. Operators such as Enedis have warned that underground cables can fail at temperatures of up to 80 degrees and have also forecast possible power outages. This increases pressure to develop technical solutions to relieve strain on the power grid.

Experts view urban cooling networks as a promising way to mitigate the negative effects of heatwaves. Centralized cooling systems reduce electricity consumption by decreasing the use of individual air conditioners, thereby easing the burden on network infrastructure. However, significant technical and financial challenges remain in order to introduce them widely in mixed residential areas. Residents’ acceptance is also an important factor for success.

This heatwave demonstrates how urgent innovative and sustainable cooling solutions are in responding to the consequences of global warming. In addition to urban cooling networks, these include a range of measures such as urban greening, green building facades and roofs, and the promotion of energy-efficient building concepts. France faces the task of systematically advancing these various strategies to ensure quality of life in urban areas where heatwaves are becoming more frequent. It remains to be seen how quickly and comprehensively urban cooling networks will be expanded in the coming years and what role they will play in the national climate adaptation program.

France’s experience is also attracting attention in other European countries, as the expansion of heatwaves is a cross-border phenomenon. Cities across Europe are closely observing the progress and challenges of this approach.