The Municipality of Torino, with its 908,000 inhabitants, its 130 square kilometres of territorial extension and its GDP of 55,000 million Euros (which is 4.5% of the national GDP), is one of the most important city in Italy. Since the 1990’s, Torino has been following a path that has transformed it from an industrial capital – a sector which continues to play a fundamental role – into a pole of innovation, culture and improved quality of life. The urban sustainable development is, indeed, one of the key-themes of the City Strategic Guidelines that is the programmatic document containing the political-administrative Mayor’s plan. In this plan, the Municipality government describes its strategic action-lines for the City development and affirms its commitment to foster the environmental quality of the town territory, to increase the capability of technological innovation and to make Torino a real “Smart City”. Torino path to become “Smart City” started 2 years ago, when the City Council took the decision to take part in the initiative of the European Commission “Covenant of Mayors” and – as one of the first Italian cities – engaged itself to elaborate an Action Plan for Energy in order to reduce its CO2 emissions more than 20% by 2020. The Torino Action Plan for Energy (TAPE) now represents a fundamental step to present Torino as a “Smart City”. It has been approved in 2010 and its main objective is to reduce CO2 of 40% by 2020 (baseline: 1991). It is structured on 51 actions, concerning several sectors such as: transportation (public and private); building trade; tertiary sector (municipal estate, public and private tertiary, residential building, public lighting); industry.