CIRCE Foundation (Centre of Research for Energy Resources and Consumption) was established in 1993 as an independent Research Centre to create and develop solutions and scientific/technical knowledge and to transfer them to the business sector in the field of energy. CIRCE’s mission is to drive forward improvements in energy efficiency and to spread the use of renewable energy by means of the development of R+D+I activities and formative actions, thereby contributing to a sustainable development. CIRCE carries out R&D&I activities with the ultimate aim of ensuring the energy efficiency of products, processes and services that contribute to reducing energy demand without compromising supply comfort and safety. The concept of energy efficiency ranges from the search for better technology on thermal and electric systems in a broad scope of sectors, to changes in behaviour regarding energy usage, encouraging a wiser more sustainable consumption.