Energy Efficiency Topics

Two main types of heat pumps are used in residential and commercial applications: air-source heat pumps (by far the most common) and ground-source...
HVAC systems are comprised of the heating, air conditioning, and ventilation systems in a residential or commercial building. These mechanical...
Trucks and buses exceeding 8,500 pounds gross vehicle weight rating consume 2.8 million barrels of petroleum fuels daily, or 20 percent of total...
The goal of good energy efficient building design is to minimize energy consumption while providing healthy indoor environments. Poor indoor air...
For over 30 years, the U.S. Department of Energy’s Industrial Assessment Center (IAC) program has provided small and medium-sized manufacturing firms...
The industrial sector offers tremendous opportunity for low-cost energy savings from utility energy efficiency programs. ACEEE created a collection...
Information and communication technologies (ICT) have transformed our economy and our lives, and have revolutionized the relationship between...
Intelligent efficiency (IE) is the additional energy efficiency made possible through the use of information and communications technologies (ICT)....
To remain economically viable, combined heat and power (CHP) systems and other distributed generation (DG) technologies rely on the ability to...
Energy efficiency is certainly not a concept unique to the United States. Indeed, some of the world’s leaders in energy efficiency reside in Europe...
Millions of people work to save energy in the United States. In our new multimedia project, People Who Save Energy, we introduce you to the people...
Energy efficiency naturally fits in the discussion of crafting legislation to create jobs. Energy efficiency projects are labor intensive and lower...
Clothes washers and dryers are the two highest energy-using appliances in the average home, after refrigerators. There are both technology and...
In the residential sector, lighting is used indoors and out to provide ambient light and meet task-specific lighting needs, for decorative purposes...
As the saying goes, “All politics is local”—and the same could be said about energy efficiency. By definition, the implementation of energy...
Many households across the country suffer from high energy costs, especially low-income households. These households typically have older and less...
In spite of perceptions that U.S. manufacturing has been in rapid decline, manufacturing continues to represent a vital component of the United...
Electric motors convert electric power to useful mechanical energy and consume more electricity than any other end use in the United States.  The...
Multifamily homes include partially-detached homes, townhouses, and apartment buildings and range from small units of less than four units to high-...
Net metering is a policy that applies to small distributed generation systems, such as renewable technologies and small combined heat and power (...
New construction has many more opportunities for the integration of energy efficiency measures than existing buildings. Often retrofits of measures...
Office buildings make up the largest sector of building type within the commercial sector, comprising 17% of all commercial buildings in the U.S,...
Office equipment is one of the fastest-growing electricity uses in commercial buildings in the United States. It directly consumes 7% of total...
Refrigeration systems account for about 10 percent of electricity use in the commercial sector. About two-thirds of this is consumed by "packaged"...
Federal and state energy efficiency policy analysis, which examines the overall costs and benefits of potential new policy opportunities and those...