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Significant Progress in 2021 but Much More to Do

Press Release

Report: Deep Retrofits Can Halve Homes’ Energy Use and Emissions


2021 City Clean Energy Scorecard

Press Release

DOE Opens Path to Cut Energy Waste from Gas Furnaces, Water Heaters, Boilers

Press Release

Biden's Auto Standards Set Stage for Transformative Progress Ahead

Blog Post

ACEEE's Top Blog Posts of 2021

Energy Efficiency Non-profit Organization

Smarter Energy for a Cleaner Planet and Better Lives

ACEEE works to transform and optimize how we use energy throughout the economy. We see energy efficiency as key to rapidly and equitably combating climate change while improving our economic well-being.
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