Publications and Resources

Featured Publications

Research Report U1907 - September 18, 2019

Energy efficiency can slash US energy use and greenhouse gas emissions by about 50% by 2050, getting us halfway to our national climate goals. We can achieve almost all these savings, worth more than $700 billion in 2050, by dramatically scaling up government policies and programs. This report...

Research Report U1904 - July 24, 2019

The City Clean Energy Scorecard measures the progress of city policies and programs that save energy, promote renewable energy, and reduce greenhouse gas emissions. It also focuses on efforts to embed equity in policymaking. We ranked 75 large US cities for their energy efficiency and...

Research Report U1902 - February 20, 2019

The lifetime of energy efficiency programs and measures ranges from a few months to several decades. Nevertheless, most energy efficiency policies are designed around the first year of savings. This report describes recent policy changes in some states and Canadian provinces to measure the value...

Regulatory Filing - July 28, 2017

Comments by ACEEE and SEEA, the Southeast Energy Efficiency Alliance, on the topic of evaluation, measurement, and verification of energy efficiency programs. The comments were delivered to the Virginia State Corporation Commission in reference to docket number PUR-2017-00047.

Regulatory Filing - July 26, 2017

A letter submitted to the Virginia Department of Environmental Quality referencing Executive Directive 11, “Reduce and Cap Carbon Dioxide from Fossil Fuel Fired Electric Power Generating Facilities.”

Research Report - July 25, 2017

National appliance standards cover products ranging from refrigerators to commercial air conditioners to electric motors. Most of today’s national standards started out at the state level. Even when state standards do not become national ones, adoption by just a few states can be enough to...

Research Report - July 19, 2017

Natural gas efficiency efforts generally receive less attention than programs to save electricity. To help rectify this imbalance, this report surveys natural gas efficiency trends and looks ahead at issues and opportunities. We begin by discussing past efficiency progress including the...

Fact Sheet - July 12, 2017

The Environmental Protection Agency’s SmartWay Program is a partnership with the freight industry to reduce fuel consumption and air pollution. Launched in 2004, this program has worked with more than 3,500 shippers and logistics companies and has saved almost 200 million barrels of oil, lowered...

Fact Sheet - July 12, 2017

Pickup truck fuel economy is on the rise. EPA’s latest Fuel Economy Trends report shows that average fuel economy for new pickups increased from 16.9 mpg in 2010 to 19.0 mpg in 2016.1 That will save the average driver about $200 in fuel expenditures per year, even at current low gasoline prices...

White Paper - July 11, 2017

This paper catalogs deep retrofit activities in existing buildings. Our review of completed ultra-low energy building (ULEB) retrofit projects in the residential and commercial sectors shows that deep energy savings are technically feasible. While some buildings need extensive interventions...

White Paper - July 11, 2017

This paper summarizes an ACEEE baseline assessment of electric and natural gas energy efficiency programs that target low-income households in the largest metropolitan statistical areas in the country. We surveyed over 70 electric and natural gas utilities on their 2015 low-income program...

White Paper - June 20, 2017

Many new ideas may be considered in tax reform discussions. One idea is clean tax cuts—the application of supply-side tax-rate cuts for clean investments that reduce pollutant emissions. Lower tax rates for income from clean investments (where clean is specifically defined) will ...

Research Report - June 13, 2017

This first edition of the Utility Energy Efficiency Scorecard assesses the 51 largest US electric utilities across a range of energy efficiency metrics. The metrics fall into three categories critical to utility-sector efficiency: (1) quantitative savings and spending performance, (2)...

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