Page 18 - Risorse_Energetiche_Favignana_2005

Proposal APERTURES. PART B Priority6.1.3.1.1.2 - FP6-2005-TREN-4 p 16 of 49
collaborators within the consortium will certainly take advantage of the new tools and methodologies to improve
products and services.

Societal impact : Extending the experience of the Favignana Island
The island of Favignana lies in the Mediterranean Sea just in front of Trapani, Italy, off the Sicilian
2
western coast, see Fig.1 and Fig.2. It has a surface of about 20 km , it presents a significant variation of
population between summer and winter, ranging from about 2500-3000 inhabitants in winter to more than
20000 in summer. Correspondingly, it presents an electric energy consumption ranging from 1500-2000
kW in winter to 5000 kW in summer. Currently, its electrical grid is not connected to the continental one
and therefore it can be reasonably considered as a weak grid. Morever it is supplied by 6 groups of Diesel
generation units with rated power respectively 1792, 1694, 1727, 1050, 1692 and 1690 kW, with resulting
total 9645 kW peak power installed. Figs. 3 and 4 show the power peak deman on an year basis during
2004 and 2005 and the corresponding energy produced by the diesel generators. These data have been
given from SEA, which manages the production and distribution of electrical energy in Favignana.
Finally, Favignana, due to its touristvocation, like most of touristislands in the Mediterranean area, must
comply with strong rules of the local autorithies for preserving the beauty of the landscape and keeping
the environment unpolluted. From the electric point of view, Favignana currently presents an oversized
generation system, which is suitable for summer consumptions and definitely underemployed in winter
with bad exploitment of energy sources with resulting higher produced emissions.
For the above reasons Favignana has been chosen as a case study to implement a demonstrator for integrating a
significant percentage of RES into the existing grid, since it can be well considered energetically and
geographically as a suitable sample of many Mediterranean islands. The idea is then also to make Favignana an
example for a scientifical and turistical attractive for the integration of non-pollutant sources in places where
preserving the environment is the most important issue.
Moreover the implementation of RES into the existing grid will be about 10 ¸ 20% of the total generated power
and it presupposes the subdivision of the existing grid into multiple micro-grids, so as to emulate the future
scenario at different network voltage levels for larger scale integration of RES into utility energy supplies. Finally
the integration of novel technologies in such unindustrialized areas as Sicily could have a beneficial impact in
terms of spin-offs, and investments of the industrial partners of the consortium in the territory.

Fig.1 Sicilian western coast Fig.2 Map of Favignana

Daily Power Peaks

P max [kW] 6 000 2004
4 000
2 000
2005
0
1- janv 1- mars 1- mai 1-juil 1- sept 1- nov