Interior fittings that favour low-carbon materials or materials that have been recycled are also used. Of the 5,000 seats in total in the stands, for example, 3,000 are entirely made in France, from locally collected and recycled plastic. This means that 30 tonnes of waste have found a new, sustainable life.
The pools will be kept at a constant temperature by recovering heat from the urban network, including a nearby data centre. Finally, the 5,000 m² roof is covered with photovoltaic panels, which cover at least 20% of electricity needs, making it one of the largest solar farms on a public building in the Île-de-France region.