The Paris-Saclay district heating and cooling grid is one of the five pilot sites from D2Grids European project. It is the first 5GDHC grid in France, including an ambient temperature loop.

In 2015, the Etablissement public d'aménagement (EPA) of Paris-Saclay and IDEX group signed a seven-year contract, and the first connections of the grid to the campus buildings began in 2016. IDEX was able to provide the EPA their technical and financial expertise. In coordination with the scientific institutions and companies connected to the project. In 2022, this contract came to its end, and the company Veolia was chosen to take over the operation of the 5GDHC grid of Paris-Saclay urban campus, from January 2023.

Unique in Europe, this installation will enable the development of an ambitious energy mix combining deep geothermal energy, waste heat from the CNRS supercomputer, and heat recovery from the cooling grid. Thanks to all these local resources, the grid is controlled automatically, 24 hours a day, 365 days a year.

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