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Interference of electricity lines with environment and territory

The processes for implementing new overhead electricity networks necessarily have to consider the environmental impact generated. It is therefore necessary to identify criteria for choosing suitable areas of land that take into account structural, social and environmental constraints. For this it is necessary to consider factors such as landscape impact, electromagnetic fields, ecosystems, residential areas. Lastly it is necessary to identify decision support systems of the local Authorities that make it possible to compare these impacts with the benefits that justify the proposal of new installations. An approach that is widely shared worldwide, particularly in the EU, consists in the evaluation of the so-called external costs, which represent a measure of the impact obtained with the monetary estimate of costs not included in the income statement of the entrepreneur, but supported by the community. Usually environmental analyses on electricity lines only marginally consider the problem of monetization of related impacts.

RSE has proposed to contribute to filling this gap by identifying the most significant impacts, their quantification - on the huge amount of data, information and experience available-and the definition of criteria for their monetization. The methodology used for these investigations is the impact pathway through the identification of pressure factors, the determination of the impact and the quantification of this impact in monetary terms (damage).

The monetization of environmental and social impacts is a direct comparison method but it has been criticized and is sometimes not easily accepted by the involved parties. To overcome these limitations it is more appropriate to adopt a more structured approach which makes it possible to integrate the various dimensions of the problem (both technical - economic and environmental - social) in decision-making processes, without necessarily limiting everything to the economic aspect. To this end, the applicability of methodologies such as classic multi-criteria analysis is currently being studied to provide support in selecting the best alternative, allow the involvement of all interested parties and to ensure transparency and traceability of the decision-making process.