Construction management

To ensure that worksites are managed in conformance with Terna’s environmental policy, the Company has adopted an operating directive called “Management of environmental aspects during the construction of infrastructure”. These instructions provide in particular that, technical requirements permitting, worksite areas and new access roads be located in zones with less valuable vegetation (agricultural areas). 

If the areas do involve natural or semi-natural habitats, however, once the work is completed measures of environmental enhancement must be taken in order to restore the area concerned to a condition as near as possible to what it was before the work began. The schedule of the work itself must take into account the essential needs of the species that could be affected, avoiding work with the greatest impact in periods when the species reproduce.

Furthermore, special care must be taken with the waste produced on the worksite, in accordance with the regulations in force, avoiding temporary dumps and leakages of pollutants.

It is also mandatory to adopt the available technologies to reduce the acoustical emissions of stations and those caused by the corona discharge of the electric lines.

The “Management of environmental aspects during the construction of infrastructure” directive also furnishes instructions for minimising environmental impact along the supply chain. 

The environmental prescriptions applied to work contracted out to external firms were established in accordance with the provisions of applicable environmental law and of the ISO 14001 standard. They include aspects such as: the prevention of aquifer contamination, limiting damage to vegetation, management of accidents, minimising atmospheric emissions, use of vehicles, and the proper management of waste and excavation land.