Abstract

The Italian electricity system, based on a centralized grid, presents important inefficiencies in the transmission infrastructure and is highly import-dependent. At the same time, it has a high renewable potential. These three aspects might encourage Italy to shift from the traditional centralized grid to a new decentralized electricity system by adopting Micro-Grids (MGs). This transition, however, has not yet started. This work aims to study the possible scenarios of adoption and diffusion of MGs in Italy, by analysing the influence of regional factors, the potential role of subsidies and people’s attitude. An agent-based model is formulated in order to simulate the diffusion of MGs as a function of those characteristics and to analyse which policies could facilitate the adoption of MGs in the country. The results show the high dependence of the diffusion process on regional factors (electricity demand, renewable potential and population). Moreover, the model confirms that subsidies can encourage the diffusion (mainly when they are regional-based rather than national-based) and that a higher “green” attitude by users can accelerate the diffusion of MGs in Italy.

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