Compensation measures



Compensation measures

In order to reduce loss of biodiversity, especially with regard to birdlife, a very important area of REN's activity involves compensatory measures following the environmental impact assessment of new infrastructures.

1. Number of trees felled (construction of new RNT and RNTGN infrastructures)

After having compiled the information available on the different construction projects, below is a calculation of the number of trees felled, per construction for REN Eléctrica, REN Gasodutos and REN Armazenagem. This calculation takes into account not only the number of trees felled but also the area covered. In the latter case the figure is based on an average density estimate (trees/ha) for each region.

In 2016, a total of 107,353 trees were planted in an area of approximately 395 hectares. The following species are of note:

•Oak: 54,131 planted

•Cork oak: 3,618 planted

•Chestnut/Walnut: 15,049 planted

•Olive trees 5,143 planted

•Strawberry trees: 1,032 planted

•Stone pines: 28,380 planted


In 2016, approximately 286 000 trees were felled in REN construction work, representing a forest area of around 193 hectares.

In 2016, the major projects were:

•Vieira do Minho-Pedralva line 2: 27%

•Pedralva-Ponte de Lima line: 19%

•Terras Altas Fafe-Riba D'Ave line, opening to Fafe: 14%

Douro Internacional and Távora Valley

The implementation of compensatory measures is aimed at the ecological restoration of populations of rock-dwelling birds (black stork, Egyptian vulture, Bonelli's eagle, golden eagle, eagle owl, peregrine falcon and red-billed chough) in the Douro Internacional Natural Park and River Távora Valley, as follows:
- habitat management for wild rabbit and red-legged partridge;
- construction and population of traditional dovecotes;
- installation of ponds;
- promotion of extensive grazing.
In addition, a monitoring plan will be implemented for these species.