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Energy Efficiency 2023 is the IEA’s primary annual analysis on global developments in energy efficiency markets and policy. It explores recent trends in energy intensity, demand and efficiency-related investment, policy and technology. This tenth edition of the market report also features a new spotlight section, focused on key issues facing policy makers this year. In particular, the report details what is entailed with the proposed global target to double energy efficiency progress and what will be gained by achieving it.