ISF (EWB - Engineering Without Borders) [http://www.isf-italia.org] is an association that proposes to elaborate, realize and spread engineering practices and techniques to favor the full realization of all human individuals and communities. ISF is a no-profit organization, it is independent from any government, political party, economic interest or religious creed; it acts according to the principles of tolerance and respect among cultures, equally and reciprocally.ISF-Cagliari - ENERGIA Group (Energy Group) deals with understanding, deepening and spreading about the production and consumption of energy with particular attentions to the respect of the environment and the involved communities.