Save big on heating, cooling costs with efficiency controls
U.S. commercial building owners could save an average of 38 percent on their heating and cooling bills if they installed a handful of energy efficiency controls that make their heating, ventilation and air ...
Australian scientists report breakthrough in solar cell efficiency
(Phys.org) -- Low cost solar cells suitable for rooftop panels could reach a record-breaking 40 percent efficiency following an early stage breakthrough by a University of Sydney researcher and his German ...
Amazon, Apple, Twitter score low on clean energy: study
Amazon, Apple and Twitter were graded poorly Tuesday in a Greenpeace study of technology titans' use of clean energy to power the mushrooming Internet cloud, but Facebook, Google and Yahoo! won praise.
Bats save energy by drawing in wings on upstroke: study
(Phys.org) -- Bat wings are like hands: meaty, bony and full of joints. A new Brown University study finds that bats take advantage of their flexibility by folding in their wings on the upstroke to save inertial ...
Fujitsu develops a 2.3kW high-capacity power supply unit for servers, conversion efficiency rate of 94.8%
Fujitsu Laboratories today announced the development of a power supply unit for servers that features a 2.3 kW power output and achieves a world-leading conversion efficiency rate of 98.4%.
Fujitsu develops power saving system control technology for container data centers
Fujitsu Laboratories today announced the development of a power conservation system control technology that reduces overall power consumption in container data centers by closely coordinating the operation ...
Free apps drain smartphone energy on 'advertising modules'
(PhysOrg.com) -- Researchers have shown that popular free smartphone apps spend up to 75 percent of their energy tracking the user's geographical location, sending information about the user to advertisers and downloading ...
Rare earth metals: Another challenge for the green economy?
If you follow the clean energy dialogue, then you may have encountered discussions about the role of rare earth metals at some point in the last year or two. If not, read on, because rare earths should not ...
First the smart phone, now the smart home: Digital technology on verge of tending to household tasks
We have all heard of the smartphone and any day now, most of us will have one. Not far behind: the smart home.
Earth Hour dilemma: When the 'like' button harms the planet
Green groups around the world are turning to social networking to drive their campaign for Earth Hour on Saturday, when lights are turned off for an hour to signal concern about global warming.
Wind turbines that learn like humans
Depending on the weather, wind turbines can face whispering breezes or gale-force gusts. Such variable conditions make extracting the maximum power from the turbines a tricky control problem, but a collaboration of Chinese ...
Wind energy enhancement: UC research establishes real-world wind turbine performance metrics
The production of wind-derived renewable energy is growing, and so, it's important to help wind farm owners operate at higher efficiencies with lower costs.
Artificially structured metamaterials may boost wireless power transfer
Scientists calculate that a "perfect lens," a slab of artificial material engineered to focus electromagnetic fields in ways that natural materials can't, may increase the efficiency of some wireless power transfer systems.
Obama names new chief technology officer
US President Barack Obama named a new chief technology officer on Friday to lead efforts to inject innovation into government.