About Circe

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.

Over 190 professionals with a broad variety of profiles compose the team of people working at CIRCE. Since 1993, CIRCE has conducted more than 2.500 R&D&I project at national and international level and has trained more than 1.850 professionals from 47 countries within the postgraduate courses CIRCE promotes.

CIRCE maintains a national leadership position in the field of Energy Efficiency, being the third national Research Centre getting more projects in competitive calls during period 2004-2007 in Spain. The main research topics in CIRCE are: energy efficiency, wind and solar power, natural resources, biomass, electrical substations, smart-grids and storage, thermal power systems and emissions reduction, sustainable mobility and energy socioeconomics.


Role in the Project

CIRCE will be the developer of a LCA and S-LCA tool during the RINNO project. This tool will be able to calculate the total LCA of a building thanks the characterisation of the different parts that compose this building. Additionally, CIRCE will define the KPIs of the project along with the creation of a LCA and S-LCA database, including the calculation of the RINNO technologies. Finally, CIRCE will develop activities related to Circular economy of refurbishments and GIS of buildings in Europe, using cadastral databases.

Key Personnel

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David Zambrana is an industrial engineer and PhD candidate in Renewable Energy and Energy Efficiency by the university of Zaragoza. He holds a MSc in Renewable Energies and Energy Efficiency and two Postgraduate degrees. He started working in Fundación CIRCE in 2009 as Researcher in the Energy Efficiency Area. David has several honours and awards relating his contributions in the R&D field of Sustainability at urban level, energy efficiency and product development.


Leon Nielsen has ample experience in management and proposal writing of European Commission projects. He has a keen interest in sustainability objectives across many industries related to different engineering disciplines and low carbon, sustainable transitioning of markets. He holds dual Civil Engineering and Mathematics degrees, with many prior years of experience in engineering design and construction of buildings.