Long considered simply as an « option » in the OECD (Organization for Economic Co-operation and Development) countries, energy efficiency is spreading, with notable progress in all major regions of the world. The experience gained by the OECD countries benefits so-called emerging countries, as demonstrated by the study of energy efficiency in the world conducted by ADEME for the World Energy Council.
A relative international consensus is emerging. It sees energy efficiency as a beneficial strategy for each stakeholder: reducing dependence on energy imports, reducing emissions of greenhouse gas emissions related to energy, preserving the competitiveness of companies and household purchasing power, etc.
This good news appears to be an illusion, however, with a general decrease in energy efficiency over the recent years. Regional disparities remain and new solutions must be found to take the reality of each country into account and thus move to the next level.