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...

Research Report - November 13, 2019

This report is the first to explore how energy efficiency program implementers are trying to reach nonresidential community-serving institutions in low- to moderate-income areas. These groups include nonprofits, schools, local government buildings, locally owned businesses, medical facilities,...

Journal Article - October 30, 2019

The opportunity for carbon reductions and increased electricity sales from electrification is highest in the transportation sector. Electrification challenges include economics, consumer acceptance, electric grid impacts, and limited product availability and dealer/contractor acceptance for some...

White Paper - October 30, 2019

Rapid changes in technologies and policies are causing the energy load on the electricity grid to change quickly, and utilities are looking for ways to help ease the strain. One potential resource is grid-interactive efficient buildings (GEBs), energy-efficient structures that can communicate...

Research Report - October 22, 2019

The buildings where people work and live can dramatically influence their health. Energy efficiency programs can make homes safer and healthier and bring financial benefits to vulnerable families. This study describes the methods used by 63 programs nationwide to measure and document their...

Regulatory Filing - October 17, 2019

Submitted to Case No. NEPR-MI-2019-0015, Puerto Rico Energy Bureau’s Proposed Regulation for Energy Efficiency and Demand Response.

Research Report - October 01, 2019

The 13th edition of the ACEEE State Energy Efficiency Scorecard is a progress report on state policies and programs that save energy while producing environmental and economic benefits. We use data vetted by state energy officials to rank states in six categories—utility programs, transportation...

Regulatory Filing - September 30, 2019

Submitted to Docket No. 2018-AD-64; Order Establishing Docket to Investigate the Development and Implementation of an Integrated Resource Planning Rule Order Seeking Comments on Proposed Rule. 

Testimony - September 20, 2019

The testimony, delivered by ACEEE executive director Steve Nadel, was delivered before the Subcommittee on Energy of the House Committee on Energy and Commerce hearing on the role fo the building sector in creating a 100 percent clean economy in the US. 

Research Report - 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...

Fact Sheet - September 17, 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. In order to achieve these savings, we need to scale up efficiency in several key areas. This fact sheet provides an overview of 11 opportunities and...

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