Amarenco’s approach to water is an integral part of its climate change adaptation policy. It addresses both the reduction of impacts on water resources across solar sites and the anticipation of water-related physical risks affecting the company’s activities.
Water use
Water consumption at Amarenco primarily relates to the cleaning of panels at operating solar plants. The company monitors both the source and the volume of water used. While the source of water may vary, the overall impact remains limited since the water used for cleaning returns to nature. In addition, when cleaning products are used, they are biodegradable.
Soil water retention as an indicator of soil health
As part of Amarenco’s ECHO program, initiatives are implemented to maintain or improve the potential water retention capacity of soils within the perimeter of solar plants.
Anticipation of water-related risks
Water-related risks are systematically taken into account in the design and development of solar plants, including:
– Changing precipitation patterns and hail risk in structural design;
– Selection of solar panels to ensure resilience to water and hail impacts;
– Appropriate insurance policies;
– Flood risks, which receive specific attention in Amarenco’s environmental and engineering policies.
Data
Water consumption figures cover all Amarenco departments and geographies. It includes water consumed for the cleaning of the PV plants and in Amarenco offices.
From 2024 to 2025, water consumption increased as a result of increased capacity installed and operated by the company.
The increase in our total water consumption is largely due to a more accurate estimate of our offices’ water consumption.
Focus on PV plants: panel cleaning
| Total | 150 | m3 |
| Intensity | 2.67857143 | m3 of water per MW |
2024: 350 m3. We managed to reduce cleaning operations in 2025 by aligning them with the needs of the plants: no cleaning when rain is sufficient and no unnecessary cleaning. The aim is efficiency, combining savings in resources and water. This approach does not guarantee low cleaning activity every year, but it limits water consumption by avoiding unnecessary cleaning operations.
| 2024 | 2025 | |
|---|---|---|
| TOTAL in m3 | 800.56 | 1,310 |