Publications and Resources

Featured Publications

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)...

Fact Sheet - March 01, 2017

How large is the energy efficiency “industry”? At least 2.2 million people work in whole or in part on energy efficiency in the United States. If supporting jobs and jobs due to energy savings are included, the total is at least three times as large. The jobs are spread in multiple sectors and...

Research Report - April 20, 2016

Energy burden is the percentage of household income spent on home energy bills. In this report, ACEEE, along with the Energy Efficiency for All coalition, measures the energy burden of households in 48 of the largest American cities. We find that low-income, African-American, Latino, low-income...

Fact Sheet - October 27, 2015

Lowering the amount of energy we waste reduces our need to burn coal and other fossil fuels to generate electricity. Those reductions in pollution mean big gains for health, as pollutants from fossil fuel combustion contribute to four of the leading causes of death in the United States: cancer,...

Research Report - February 13, 2018

Electric vehicles (EVs) have the potential to reduce US transportation-sector energy use and associated emissions, as well as to support the transition to a more sustainable transportation system. Large-scale EV adoption will also create opportunities and challenges for the electric power sector...

Research Report - January 24, 2018

Energy production and consumption require water, and water transport and treatment need energy. Researchers and practitioners are increasingly interested in designing integrated programs to manage energy and water in tandem. Utilities typically do not focus on the avoided costs and indirect...

Research Report - December 20, 2017

Commercial buildings have their own unique energy systems, ownership structures, and decision-making processes. They also have striking opportunities to save energy by installing smart technologies. Beginning where our previous Smart Buildings study left off, this report takes a deeper...

Research Report - December 13, 2017

Market transformation is a program model for achieving long-lasting changes in targeted markets to increase shares of energy-efficient products and services. This report examines recent market transformation efforts to identify keys to successful programs and the challenges they face. We...

Fact Sheet - December 08, 2017

Description of utility-sector energy efficiency opportunities in Virginia, using data from ACEEE’s 2017 Utility Energy Efficiency Scorecard.

Research Report - December 06, 2017

Regional transmission organizations use capacity auctions to ensure energy resources are available to meet future demand. This report synthesizes and analyzes data on energy efficiency in two annual capacity auctions: PJM and ISO New England. Focusing on results since the inception of both...

Research Report - November 27, 2017

In this report, we discuss how information technologies and communication networks are enabling new ways of tracking and analyzing the many benefits of saving energy. When stakeholders can quantify the coincident benefits of energy savings and put monetary value on them, they improve the...

Fact Sheet - November 08, 2017

Millions of people work to save energy in the United States. They work in every state, across industries and technologies. To show the diverse arc of this growing workforce, we visited North Carolina. This fact sheet tells the stories of some of these workers—from manufacturers to builders,...

Fact Sheet - October 25, 2017

This fact sheet summarizes and illustrates the findings of a more detailed ACEEE study that looks at 13 packages of energy efficiency measures that together can reduce US 2040 energy use by 34% and US carbon emissions by 35%, putting us on a path to 50% savings by 2050. The packages cover...

Research Report - October 24, 2017

Energy efficiency is a powerful tool for lowering the disproportionate energy costs faced by low-income customers. Unfortunately, lack of capital, lack of credit, and aging housing stock that may need health and safety improvements often prevent these consumers from taking advantage of low-...

Search Publications