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Energy Efficient

Switch Lighting's 100 watt-equivalent LED bulb

Currently the brightest options for those looking to ditch their incandescent light bulbs in favor of the longer life and more energy efficient LED variety are those equivalent to 60 watt incandescent bulbs, such as the GeoBulb II. Things got a little brighter last month when California-based Switch Lighting announced its 75 watt-equivalent LED bulb and now the company has gone one better with the announcement of what it claims is the world's first 100 watt-equivalent LED bulb.  Read More

The Yill mobile energy storage unit

Although HP and others are breaking new ground in notebook battery life, there are times when you might find yourself away from the grid for a bit longer than your laptop battery can last. A mobile energy storage unit like Yill, from Germany's Younicos, is said to be capable of autonomously meeting the power needs of a computer workstation for between two and three days on a single charge of its own quick-charge batteries. Deployment of the drum-like power houses throughout an office could even help save energy bills.  Read More

A die micrograph of the fully integrated DC-DC converter chip (Image: Wonyoung Kim, Harvar...

For decades, chipmakers strove to develop the fastest and most powerful chips possible and damn the amount of electricity needed to power them, but these days raw grunt isn't the only consideration. As more and more devices go mobile and these devices become more and more powerful, chipmakers must also take the energy efficiency into account. Harvard graduate student Wonyoung Kim has developed and demonstrated an on-chip, multi-core voltage regulator (MCVR) that he says could allow the creation of "smarter" smartphones, slimmer laptops and more energy efficient data centers by more closely matching the power supply to the demand of the chip.  Read More

The U.S. Department of Energy Solar Decathlon has announced that China is to host its own ...

Every couple of years since 2005, student teams have been challenged to design, build and operate energy efficient, cost effective solar houses as part of an international Solar Decathlon. As teams show off their entries for this year's competition at the International Builders' Show in Orlando, the U.S. Department of Energy Solar Decathlon has announced that China is to follow Europe's lead and host its own version of the competition in 2013.  Read More

CompuLab has announced a new miniature computer powered by NVIDIA's Tegra 2 processing pla...

Israel's CompuLab, makers of the fit-PC range of energy efficient mini-PCs, has announced a new miniature computer powered by NVIDIA's Tegra 2 processing platform. The Trim-Slice computer is said to offer the rich multimedia capabilities and user experience of a full-size PC at only a fraction of the power draw. It benefits from a fanless design, Wireless-N connectivity, solid state memory and expansion via both a full size and a micro SD card slots.  Read More

An Indian student trying out a prototype of the I-slate

Computers have become an essential part of a child’s education, yet there are currently over 100 million Indian children who attend rural schools that don’t have electricity – no electricity means no computers. Recently, however, a group of organizations from several different countries put their heads together to create the I-slate, a low-cost, low-energy tablet PC designed for use in these schools that runs on solar power. In trials conducted so far, it appears to be a hit with the kids.  Read More

Dr. Heike Riel, who leads the nanoscale electronics group at IBM Research-Zurich, is part ...

It has been estimated that in the European Union, about ten percent of the electricity used in homes and offices goes to power computers and other electronic devices that are in standby mode. By 2020, that amount could constitute 49 terawatt hours per year, which is almost equivalent to the combined annual electrical consumption of Austria, the Czech Republic and Portugal. The European Union’s just-announced Steeper research initiative squarely addresses such concerns. Its aim is to develop electronics that operate on less than half a volt when in standby, and that are up to ten times more energy-efficient when active.  Read More

On show at Viv'expo in Bordeaux - a cutaway model of a Domespace home

Taking up a large section of the Eco Habitat zone at the recent Viv'expo exhibition in Bordeaux was a walk-in cutaway model of a rotating wooden house known as Domespace. Built on a central concrete pedestal, the Domespace home benefits from little or no damp penetration, and its aerodynamic shape has been found to be resistant to cyclonic winds of up to 174mph (280kph). It also makes the most of passive solar energy, has a central chimney with a designer open fire and is surprisingly spacious.  Read More

The piezoelectric CNF-PZT Cantilever device

Piezoelectric generators that harness otherwise wasted energy from vibrations has been proposed for capturing energy in everything from shoes to roads. Now a new device made out of piezoelectric material by researchers at Louisiana Tech University could allow a wide range of electronic devices to harvest their own wasted operational energy, resulting in devices that are much more energy efficient. It even offers the potential to perpetually power micro and nano devices, such as biomedical devices or remotely located sensors and communication nodes.  Read More

The Lusail Iconic Stadium surrounded by solar collectors

As part of Qatar’s bid for the 2022 World Cup, the London-based architects responsible for the 2007 reconstruction of Wembley Stadium, Foster + Partners, has designed an energy efficient stadium to be built in the Qatar capital of Doha. When completed, the Lusail Iconic Stadium will boast enough room for 86,250 spectators and will be surrounded by parking and service areas shaded by canopies of solar collectors, which will produce energy for the stadium when it’s in use, as well as generating power for neighboring buildings.  Read More

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