25 Feb 2019

Global emissions of carbon dioxide (CO2) from fossil fuels and industry increased by 2.2% per year on average between 2005 and 2015. Global emissions need to peak and decline rapidly to limit climate change to well below 2 °C of warming, which is one of the goals of the Paris Agreement.

Journal article
29 May 2019

Most energy efficiency programs target only one fuel, usually electricity or natural gas. While they achieve savings, they sometimes miss opportunities by failing to address other fuels. Dual-fuel programs, on the other hand, have the potential to save more energy, reduce program costs, and improve customer satisfaction.

Briefing paper
27 Apr 2018

In order to achieve long-term targets for energy savings and emission reductions, substantial savings will be needed from existing buildings.

Journal article
12 May 2018

Environmental issues, costs, and limited energy supply, among other concerns have been driving the efforts toward more energy efficient buildings over the last four decades. Hence, energy efficiency is not only well-established within the building design and construction industries, but is also an active field of research.

Journal article
23 Oct 2018

This white paper examines the current state of zero energy codes and provides an update on avenues to achieving zero energy codes by 2030. It presents an overview of current efforts to achieve zero energy and similarly high-performing buildings, example code proposals that help move the needle toward ZEBs, and thoughts on additional issues and barriers.

Working paper
28 Dec 2018

Heat recovery ventilators (HRVs) save energy by recovering heat that would otherwise be exhausted as part of energy code-mandated mechanical ventilation systems. Residential HRVs can be life cycle cost effective depending on equipment/installation costs and the severity of the climate.

Technical report
18 Apr 2017

Building energy codes lay out the minimum requirements for the envelope (insulation, windows and air sealing), mechanical equipment and lighting of a building (residential and commercial) in terms of energy efficiency/conservation for new construction or major renovations.

05 Aug 2016

Does the adoption of new energy codes impact construction activity? As jurisdictions throughout the country continue to adopt increasingly stringent codes, this question is asked time and again.

Conference paper
05 Aug 2016

In 2014, the U.S. Department of Energy (DOE) issued a FOA (Funding Opportunity Announcement) to conduct residential energy code field studies using a radically different methodology from previous studies. Historically, studies defined and measured “compliance” as the portion of all code requirements being met on a house-by-house basis.

Conference paper
27 Sep 2017

With state leaders embracing efficiency’s economic and environmental benefits, utilities across the United States invested approximately $7.6 billion in energy efficiency and saved approximately 25.4 million megawatt-hours (MWh) in 2016.

28 Apr 2018

The production and consumption of energy can burden the health, well-being, and finances of people living and working in low-income and minority communities. To mitigate these effects, policymakers and utility regulators have developed policies and programs that increase access to both energy efficiency and solar resources for low-income households.

15 Jun 2017

In 2013, the American Council for an Energy-Efficient Economy (ACEEE) released a study of the nation’s largest multifamily home markets and the customer-funded utility energy efficiency programs that serve them. Using a combination of housing, utility, and policy data, ACEEE analyzed the potential to create or expand these programs in metropolitan markets.