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Energy Star (trademarked ENERGY STAR) is an energy-efficiency program administered by the U.S. Environmental Protection Agency (EPA) in partnership with the U.S. Department of Energy (DOE). [ 2 ] [ 3 ] [ 4 ] The EPA establishes energy efficiency specifications, and those that meet these specifications are eligible to display the ENERGY STAR logo.
The Energy Star program is the largest certifier of low-energy homes and consumer products in the U.S. Although certified Energy Star homes use at least 15 percent less energy than standard new homes built in accordance with the International Residential Code, they typically achieve a 20- to 30-percent savings. [23]
Energy Star Light Bulbs for Consumers is a resource for finding and comparing Energy Star qualified lamps. There is ongoing work in improving the "quality" (color rendering index) of the light. [citation needed] In the United States, new standards proposed by the United States Department of Energy could result in LED lamps replacing CFLs.
Increased energy efficiency and weatherization spending has a high return on investment. [26] On August 4, 1977, President Jimmy Carter signed into law The Department of Energy Organization Act of 1977 (Pub. L. 95–91, 91 Stat. 565, enacted August 4, 1977), which created the United States Department of Energy (DOE). [27]
The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTUs) to input electrical energy (in watt-hours) at a given operating point. EER is generally calculated using a 95 °F (35 °C) outside temperature and an inside (actually return-air) temperature of 80 °F (27 °C) and 50% relative humidity.
They examined data for monthly energy consumption between 2005–2012, for more than 175,000 commercial buildings. Buildings from all three programs displayed “high magnitude” energy savings, ranging from 18–19% for Better Buildings and Energy Star to 30% for LEED-rated buildings.
Compared to 90.1-2010, 90.1-2013 is expected to save approximately 8.7% in energy cost, 8.5% in source energy and 6.7% in site energy. [ 9 ] Updates to the building envelope section of 90.1-2013 include changes to the prescriptive opaque envelope and fenestration performance requirements in several climate zones and modifications to the ...
A Zero-Energy Building (ZEB), also known as a Net Zero-Energy (NZE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site [1] [2] or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows ...