In order to ensure that water resources are used and managed sustainably, Enel has identified three key guidelines:
Efficient use of water resources, reducing water needs in all its production processes and, where possible, promoting internal reuse, especially in areas where water is scarce (areas of water stress).
Wastewater treatment optimization and water quality conservation of the destination environment, by adopting state-of-the-art technology and management practices, in full compliance with the limits set by applicable national regulations and operating permits.
Responsible and integrated management of hydro-geological basins to preserve multiple land uses and water quality.
Regulating water for recreational and social use requires continuous monitoring of hydroelectric plants and their hydraulic infrastructure, together with a reliable communication system between installations along the Noguera Pallaresa and the Control Center, which is located in Lleida. The Control Center is continuously developing models to assess the required water flow rate, taking into account the orography (the study of the topographic relief of mountains), the river’s current flow conditions, reservoir storage levels depending on seasonal weather conditions, electricity generation needs and additional services provided, such as irrigation and water supply to the population. This complex assessment determines, in a fully automated and remotely controlled process, the volume of water released through the hydroelectric turbines, making the recreational and social use of the river compatible with the simultaneous generation of 100% renewable electricity.