All started with a collaborator of our TSP network who is working in a French energy company for energy efficiency. He needed this synthesis graph, we did it together, and I made it available for everyone here !
European Commission, Directorate-General for Energy 2010, "EU Energy Trends to 2030, Update 2009" Go to PDF
European Commission, Directorate-General Energy and Transport 2009, "Study on the Energy Savings Potentials in EU Member States, Candidate Countries and EEA Countries" Go to PDF
International Energy Agency, World Energy Outlook, 2010 edition See on IEA webpage