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...

Fact Sheet - May 02, 2019

Energy efficiency programs benefit rural electric cooperatives (co-ops), their members, and the communities they serve. By offering energy efficiency programs, co-ops invest in their members. This fact sheet describes the benefits of energy efficiency to co-ops and their communities and offers...

Topic Brief - May 02, 2019

This is the fourth in a series of technical briefs exploring emerging opportunities for energy efficiency in residential and commercial buildings. This brief looks at residential window attachments, including storm windows, interior shades and blinds, and window films. These devices save energy...

Regulatory Filing - April 26, 2019

The comments, delivered to the executive secretary of the Public Service Commission of Maryland, include recommendations pertaining to Maryland's energy efficiency business model.  

White Paper - April 24, 2019

Both energy efficiency and renewable energy can reduce greenhouse gas emissions and improve a home’s resilience during power outages. Cost effectiveness is another important consideration. Recent energy code changes have raised the question of whether renewable sources like rooftop solar...

Testimony - April 22, 2019

The testimony, delivered electronically and addressed to Chair Dick Stein and Chair Michael O'Brien, opposes House Bill 6, which would support Ohio's nuclear power plants by rolling back the state's energy efficiency and renewable energy standards. 

Research Report - April 11, 2019

Tens of thousands of home energy assessments are conducted every year in the United States, but many recipients do not follow through on their recommendations. We studied 45 sample assessment reports by coding them for design and content elements, sending them for review by a panel of experts (...

Research Report - April 09, 2019

Energy efficiency programs have historically underserved multifamily housing for low-income households, largely because of the barriers this market presents to program administrators. This report examines 32 programs that target affordable multifamily buildings, focusing on energy savings,...

White Paper - April 02, 2019

This paper analyzes the job-creation impacts of increased energy efficiency investments by electric distribution utilities in the Commonwealth of Pennsylvania. Under current Pennsylvania law, efficiency investments are artificially capped, limiting energy savings and associated economic benefits...

Topic Brief - March 08, 2019

Many jurisdictions are increasingly interested in accounting for the economic development and job-creation benefits of energy efficiency and other clean energy investments. This toolkit describes five practical approaches they can use to estimate these economic impacts, including the pros and...

Testimony - March 07, 2019

Submitted to the House of Representatives Committee on Energy and Commerce Energy Subcommittee, for the hearing titled "Wasted Energy: DOE's Inaction on Efficiency Standards and its Impact on Consumers and the Climate."

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