In 2017, the renewable electricity accounted for 42.1% (22,956 GWh) of the Portugal Mainland’s total generation. This value contrasts with last years’ share when the renewable electricity represented around 50% of the Portuguese electricity production.


The reason for this RES-E reduction is due to the 2017’s several drought that is affecting the hydroelectricity generation.


The analysis of the renewable electricity generation, by source, within the context of the last two years displays a rise in the non-renewable electricity production during 2017, when compared to the previous year, because of the low rainfall.

The increase use of renewable endogenous sources in renewable electricity generation has been changing the Portuguese electricity production mix and has been playing an increasingly active role in the supply of the Portuguese Electricity needs.