Montpellier, a dynamic metropolis in southern France, is continuously modernising its water distribution network to meet growing population demands and address the challenges of urban development and climate change. Faced with rising demand, issues of water losses within the network and the challenge of optimising distribution in areas with varied topography, the city decided to adopt a sustainable water management approach.

As the authority responsible for the area’s drinking water supply, Régie des Eaux de Montpellier Méditerranée Metropole (RE3M) aims to improve efficiency during peak demand, optimise network performance, maintain sufficient water pressure to ensure fire safety, reduce leaks, save water and minimise energy use to lower operational costs.

In 2024, DHI supported these goals by delivering a detailed hydraulic model of the region’s water distribution network, now in use by RE3M. The model is helping RE3M to manage its water network, improve service reliability, optimise costs and reduce environmental impact, paving the way for a more resilient water future.