Energy Efficiency 2021 is the IEA’s annual update on global developments in energy efficiency. This year’s edition explores recent trends in energy efficiency markets at the economy-wide and sectoral levels, including developments in policy and investment. The report also focuses on the role...

Reducing global carbon dioxide (CO2) emissions to net zero by 2050 is necessary to limit the long‐term increase in average global temperatures to 1.5 °C. Today, coal-fired power generation is the largest single source of CO2 emissions. Therefore, tackling emissions from this sector is...

The first ever IEA market report dedicated to hydropower highlights the economic and policy environment for hydropower development, addresses the challenges it faces, and offers recommendations to accelerate growth and maintain the existing infrastructure. This report presents ten-year capacity...