Publications and Resources

Research Report - June 09, 2015

This report is one in a three-part ACEEE series on utility business models for energy efficiency. The two others examine state experience with lost revenue adjustment mechanisms and present an...

Research Report - June 09, 2015

This study is one in a three-part ACEEE series on utility business models for energy efficiency. The two others are a state-by-state examination of utility performance incentives and, an overall...

Research Report - May 19, 2015

The second biennial ACEEE City Energy Efficiency Scorecard measures the progress of city policies and programs that save energy while benefiting the environment and promoting economic growth. We ranked 51 large US cities for their energy efficiency efforts across five policy...

Research Report - May 06, 2015

Phase 2 of the rule for the fuel efficiency and GHG emissions of heavy-duty vehicles will be adopted early next year. It offers major opportunities for further progress on fuel efficiency and for improvements to the structure of the standards. This report describes technologies that are...

Research Report - April 20, 2015

This version is out of date! Click here for the updated SUPR 2.

EPA’s Clean Power Plan allows states to pick from many pollution-reducing technologies and policies—including energy...

Research Report - February 11, 2015

Gamification turns a real-world activity into a game to make people more likely to do it. Over the past five years, utilities and third-party providers have developed scores of games that motivate and encourage people to save energy. This report describes and analyzes 22 of these games in depth...

Research Report - January 27, 2015

This paper describes recent advances in energy-saving elevator technologies and recommends a path for accelerating the uptake of these new capabilities. New building codes are stimulating the adoption of modern systems that can save more than 40% of current annual energy use. ACEEE recommends...

Research Report - January 14, 2015

This report analyzes ten categories of utility-sector energy efficiency programs that have achieved high participation among targeted customer markets. Despite issues with the nature and availability of participation data, the study draws on published data sources and interviews with program...

Research Report - January 06, 2015

Businesses that implement energy efficiency improvements often enjoy other benefits besides utility bill savings. However previous efforts to measure multiple benefits have been sporadic and far from rigorous. Still, evidence suggests that including non-energy impacts can reduce the payback time...

Research Report - December 17, 2014

A zero net energy (ZNE) building is a home or commercial building that on average produces as much energy as it uses, achieved through energy efficiency and renewable technologies.  Building energy codes can help us transition to ZNE construction for new residential and commercial buildings by...

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