The main objective of this iniciative was, and still is, to reduce water consumption from other less sustainable sources in such a way that, taking advantage of rainwater, good environmental practice is done and a trend towards a self-sufficiency model is performed. 

It is important to notice that generation from wind energy does not consume water in its operational processes. The water is consumed mainly for human use. Even so, EDPR actively seeks to adopt more eco-efficient practices. Reason why nowadays, 38 substations have rainwater collection and treatment systems installed to cover their own water supply needs.