Efficient energy use
hideEfficient energy use, sometimes simply called energy efficiency, is using less energy to provide the same level of energy service. An example would be insulating a home to use less heating and cooling energy to achieve the same temperature. Another example would be installing fluorescent lights and/or skylights instead of incandescent lights to attain the same level of illumination. Efficient energy use is achieved primarily by means of a more efficient technology or process rather than by changes in individual behaviour.
Energy efficient buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third, and help controlling global emissions of greenhouse gases, according to the International Energy Agency.
Energy efficiency and renewable energy are said to be the twin pillars of sustainable energy policy.
For more information about Efficient energy use, read the full article at
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News tagged with energy efficiency
New techniques make carbon-based integrated circuits more practical
Dec 09, 2009 |
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(PhysOrg.com) -- Stanford engineers have built what they believe is a chip with the most advanced computing and storage elements made of carbon nanotubes to date by devising a way to root out the stubborn ...
Energy efficiency technologies offer major savings
Dec 09, 2009 |
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Energy efficiency technologies that exist today or that are likely to be developed in the near future could save considerable money as well as energy, says a new report from the National Research Council. Fully adopting ...
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Highlight: Solar - Bridging the gap
Dec 10, 2009 |
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(PhysOrg.com) -- Titanium dioxide, the same inexpensive white pigment that protects us from sunburns, can be converted into a material that absorbs sunlight and could greatly increase the efficiency of solar energy cells.
Elusive 'hot' electrons captured in ultra-thin solar cells
Dec 11, 2009 |
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Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
Staying Power: Senate Hearing Focuses On Energy Storage
Dec 10, 2009 |
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Thursday's Senate Energy and Natural Resources Committee hearing featured testimony from experts about the power industry's need to develop systems capable of storing large amounts of electricity if the nation's ...
New structure could produce efficient semiconductor laser sources
10 hours ago |
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(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...
Researchers engineer bacteria to turn carbon dioxide into liquid fuel
Dec 10, 2009 |
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(PhysOrg.com) -- The genetically modified cyanobacterium consumes carbon dioxide and produces the liquid fuel isobutanol by using energy from sunlight.
Researcher studying ways to handle huge quantities of biomass
11 hours ago |
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(PhysOrg.com) -- As scientists scramble to develop ways to generate enormous amounts of energy from cleaner-burning, renewable fuels to replace coal and oil, promising agricultural crops such as switchgrass ...
World's mayors tackle climate change on their own
21 hours ago |
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(AP) -- It isn't easy getting Italy's city dwellers out of their Fiats, off their Vespa scooters and onto bicycles to ride to work, "like here in Copenhagen," says an Italian environmental official.
Virtual testing gives lightweight planes lift-off
15 hours ago |
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Monash University aeronautical engineers are working with the world's leading aerospace company to fast-track the design and construction of a new generation of super lightweight and efficient passenger airplanes.
Light-generating transistors to power labs on chips
Dec 11, 2009 |
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(PhysOrg.com) -- What started out as 'blue-sky' thinking by a group of European researchers could ultimately lead to the commercial mass production of a new generation of optoelectronic components for devices ...
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