Publications and Resources

Research Report - February 22, 2017

This report updates ACEEE’s 2013 assessment of multifamily energy efficiency programs in US metropolitan areas with the most multifamily households. Using housing, policy, and utility-sector data from 2014 and 2015, we document how these programs have changed in the context of dynamic housing...

Research Report - January 11, 2017

In 2008 Maryland passed an energy efficiency resource standard requiring the state to reduce per capita energy consumption by 10% by 2015. In this report we review the costs and benefits of Maryland’s EERS policy with a focus on statewide benefits from utility-sector programs. We discuss and...

Research Report - December 14, 2016

ACEEE publishes greenercars.org, an annual consumer-oriented guide offering environmental ratings for every new model in the US light-duty vehicle market. This report covers the data issues, key assumptions, and analytical methods used to develop the vehicle ratings for greenercars.org. Based on...

Research Report - November 21, 2016

The great majority of gas and electric utility commercial customers are small businesses. Utility energy efficiency programs are beginning to tap the potential for energy and demand savings in the small business sector through innovative customer engagement and program design. Addressing...

Research Report - October 18, 2016

Behavior change programs are becoming a common method for reducing energy consumption and increasing energy efficiency. But what types of programs are out there, why do they work (or fail to work), and how effective are they? This report updates the 2013 ACEEE Field Guide to Utility-Run...

Research Report - October 12, 2016

Whole home retrofits aim to address the biggest residential energy issues. Their number has grown in recent years along with contractor and program experience in delivering successful retrofits. However the demand for these programs and their participation rates have not grown as much, and many...

Research Report - September 26, 2016

This tenth edition of the State Energy Efficiency Scorecard measures the progress of state policies and programs that save energy while also benefiting the environment and promoting growth. We use data vetted by state energy officials to rank states in six categories—utility programs,...

Research Report - September 07, 2016

Financing programs can expand the reach and depth of energy efficiency investments while preserving public dollars, especially when the financing is supported by robust marketing and technical assistance. Enter the green bank. Created by states or local jurisdictions, green banks leverage public...

Research Report - August 31, 2016

Multiple trends will affect electricity demand in the coming decades, including the pace at which we adopt energy efficiency, photovoltaics, electric vehicles, and heat pumps. This report focuses on New England electricity consumption and peak demand in light of these trends, developing three...

Research Report - August 19, 2016

For decades, energy efficiency has been a critical strategy for meeting US electricity needs while saving consumers billions of dollars in avoided infrastructure costs. Just how big is energy efficiency today across the US electric power sector? This paper quantifies the energy savings and other...

Search Publications