The OECD has developed a conceptual framework for monitoring progress towards green growth. While the set of indicators is still being refined, indicators pertinent to the energy sector are those that measure the carbon-productivity or intensity of energy production and consumption, energy intensity and efficiency, “clean” energy-related research and development and patents, as well as measures of energy related taxes and subsidies. More needs to be done to improve data quality, methodologies and definitions, and to link the data to economic information. It also requires appropriate information and indicators to support policy design and analysis, identify ineffective or no longer needed measures, and monitor progress.