services and is located at the center of the campus. The campus is now being expanded with the construction of the SwissTech Convention Center inaugurated in March 2014. Together with the University of Lausanne, also located in Écublens, the EPFL forms a vast campus complex at the shores of Lake Geneva with about 20,000 students, The campus is served by the Lausanne Metro Line 1 (M1) and is equipped with an electric bicycle sharing system. Since 2012, only electricity from certified hydroelectric generation is being bought by EPFL to power its campus. The university was the first campus to receive the International Sustainable Campus Excellence Award by the International Sustainable Campus Network. Of the 14,000 people that work and study at the École Polytechnique Fédérale de Lausanne campus, roughly 9.300 are students in either Bachelor, Master or Doctoral programs, the remaining 4,700 being administrative staff, scientists, technical staff, professors and the entrepreneurs located in the Science Park EPFL7. More than 125 nationalities are present on campus with 48% of the student population being foreign nationals. Almost all of the structures are on its main campus. However, it also has branches in Neuchâtel ("Microcity"), in Sion ("Pôle EPFL Valais"), in Geneva (Campus Biotech, including the Wyss Center for Bio- and Neuro-engineering) and in Fribourg ("Smart Living Lab"). There is also a research centre in Ras al-Khaimah (United Arab Emirates), EPFL Middle East. Buildings The campus consists of about 65 buildings on . Built according to the growth of the school, the campus includes different types of architectures: Late 1970s–1980s: modularised building, used today by the Schools of Basic Sciences and Architecture, Civil and Environmental Engineering, Mechanical and Electrical Engineering 1990s: buildings with institutes from the Schools of Engineering Sciences and Techniques, Computer and Communication Sciences, and the Scientific Park (PSE) Modern: new buildings (2002–2004) with Microengineering, Communications and Architecture institutes, the School of Life Sciences and the College of Management. The Rolex Learning Center, a new library (2010) 2014: The SwissTech Convention Center and the "Quartier Nord" (convention center, student accommodation, shops...) The EPFL-Pavilions building (previously Artlab), designed by Japanese architect Kengo Kuma, was opened in November 2016; it includes three spaces opened to the public. The first one hosts archives from the Montreux Jazz Festival; the second is a space for museum experimentations. The third space, named DataSquare, hosts an exposition on Big data, illustrated by two scientific projects from