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EnergyEfficient posts

AMD 's new Athlon II processors aim to go easy on the power, your wallet

by Vladislav Savov posted Oct 20th 2009 at 4:12AM

AMD has just outed a selection of new Athlon II procs, which do little to help it reclaim the performance crown, but will be of interest to anyone who likes to keep things minimal -- whether we're talking about prices or temperatures. Starting at $69 per chip (when bought in bulk) with the 2.7GHz dual-core X2 235e and topping out at $143 for the 2.3GHz quad-core X4 605e, AMD's new e-tagged processors operate within a 45W thermal envelope, as opposed to the relatively standard 65W TDP. The Sunnyvale outfit makes some ill-advised claims of "up to 75 percent" better performance versus comparable Intel CPUs -- the small print tells us that number is derived from 3DMark Vantage while testing with different GPUs -- but we suppose until the Thuban six-core shows up, AMD will have to take performance gains from wherever it can get 'em, including its own imagination.

Texas Instruments CC2540 promises ultra-low energy Bluetooth

by Vladislav Savov posted Oct 19th 2009 at 7:18AM

Texas Instruments is pretty chuffed with itself right about now, as it's prepping to demonstrate a swell-sounding new system-on-chip that takes Bluetooth connectivity to the extreme reaches of low energy consumption. About to be shown off in Munich tomorrow, the new CC2540 takes up a measly 6mm-squared of real estate, and is said to be able to operate for more than a year on a single button cell battery. With the reduced physical size and embedded Flash memory, this should be easier to install and update as necessary too. Considering the battery-draining ways of current Bluetooth tech, such claims sound preposterously awesome, but we'll keep our giddy enthusiasm in check until early next year when samples will begin rolling out. For now, you can check out the older video below 'splaining the prospective benefits in more detail.

Read - Texas Instruments press release
Read - Bluetooth low energy webpage
Read - Video explanation of Bluetooth low energy

OSU foresters swap tree fibers for rubber in fuel efficient tires

by Darren Murph posted Jul 26th 2009 at 12:41PM

Leave it to a gaggle of brilliant wood science researchers at Oregon State University to figure out that we've been doing this whole "tire" thing wrong for generations now. While studying some uses of microcrystalline cellulose, which can be made easily from practically any type of plant fiber, these Earth-loving gurus discovered that said material could actually improve the efficiency of vehicle tires when used in place of silica. Granted, only about 12 percent of the silica -- which is used as a reinforcing filler in the manufacture of rubber tires -- was swapped out, but the resulting tires gripped just as well in wet weather while decreasing the rolling resistance during those dry summer months. Furthermore, tires constructed with these fibers could be made with less energy, though long-term durability studies are still needed to prove that this whole plan is viable for more than a few thousand miles.

[Via Gizmag]

Integrated circuits with no standby power could be in use by year's end

by Donald Melanson posted Jul 19th 2009 at 8:56PM

There's certainly no shortage of companies working to make electronics of all sorts more energy efficient, but NEC and Rohm Co now say that they're on the verge of a breakthrough that could change things in a big way, and we could possibly see it in "practical use" by the end of this year. As Tech-On! reports, both companies are hard at work on integrated circuits that consume no power at all when they're in standby mode, and turn themselves on only when power is needed. That's apparently possible by making the entire chip nonvolatile, as opposed to many current chips that only use nonvolatile merged memory. According to NEC, that'll let them "cut dissipation for digital consumer electronics in the standby mode to just a few percent of what it is now," and at no expense of convenience. While NEC isn't making any promises for the near future just yet, Rohm says that it'll begin shipping its first custom ICs in the second half of this year, and that the first products using them could start showing up by the end of 2009.

InterHome learns from inhabitants, adapts to save energy

by Darren Murph posted Jul 6th 2009 at 7:59AM

We've seen all sorts of devices that learn over time, though most of them fall into the humanoid category. Now, a team of gurus over in the UK has developed an entire home that can learn from those dwelling in it and react in order to curb energy waste and even prevent unauthorized entry. InterHome, a model designed by researchers at the University of Hertfordshire, is scheduled to be unveiled at the Microsoft Imagine Cup finals, and it should make other home automation systems look rather antediluvian in comparison. By sensing how the owner(s) like their climate and such, it can reportedly save up to £300 a year in energy costs alone. Furthermore, it can "take decisive action and text if it is being burgled or the door has been left unlocked," and the whole system can be monitored remotely and controlled via the web. Too bad we're terrified that it could one day turn on the owner and refuse to allow entry to anyone other than leaders of The Resistance, but other than that, it sounds pretty nifty.

Seagate rolls out low-power Barracuda LP hard drives

by Donald Melanson posted Apr 22nd 2009 at 1:57PM

Seagate's Barracuda drives have been plagued with a few problems as of late, but it looks like the company is doing its best to push the line in a fresh new direction with its just-announced Barracuda LP series, which promise to cut down on power consumption without making too many compromises in performance. Specifically, Seagate says that the drives will use up to 50% less electricity than standard hard drives, while also cranking out 5,900 RPM, along with an average latency of 5.5ms, and a 32MB cache. No word on what so of premium, if any, they'll demand, but you'll apparently be able to get 'em in 1TB, 1.5TB, and 2TB varieties (all 3.5-inch) right out of the gate.

Hitachi unveils 11 latest Wooo plasmas and LCDs: Greener, better looking & network connected

by Richard Lawler posted Apr 9th 2009 at 8:41AM

This year's edition of the Hitachi Wooo line of flat panels look a lot like their predecessors on the outside (120Hz IPS LCDs, 250GB HDD equipped models with iVDR slots for additional hard drives and Wooonet DLNA network support) but it's what's inside that counts. The four new XP plasma models range from 42- to 50-inches and promise even better contrast ratios, as high as 40,000:1, with better color reproduction and the promise of greater energy efficiency. The ultra-thin 35mm / 1.4-inch thick LCDs are back in four new models, with UWB wirelessly connected tuners, auto sensing/adjusting brightness and aforementioned "eco" power sipping improvements. The relatively fat XP line of LCDs consists of just three displays, but just like all the rest, buyers can still hook up to the 'net and pull down video on-demand or Yahoo! Japan's web TV portal -- features unlikely to make the jump when we see U.S. versions of these later this year. The XP plasmas and LCDs go on sale in Japan later this month or next, while the ultra-thins will be crash dieting until October.

Read - Hitachi, recording double-35mm-thin LCD TV "Wooo UT800"
Read - Hitachi, 7 new plasma / LCD

Google's Data Center secrets revealed!

by Joseph L. Flatley posted Apr 2nd 2009 at 2:08PM

After years of secrecy (maybe because they thought no one was interested), Google held its "Data Center Efficiency Summit" yesterday, where the company showed off one of its DCs and custom web servers -- all in a bid to evangelize for energy efficiency. The green angle means that everything has been planned for optimum power use, from the 1AAA shipping containers (sporting over a thousand servers each) that make up the core of its operations, to the servers themselves -- each containing its own 12-volt UPS. This design is said to boast a staggering 99.9 percent energy efficiency, as opposed to a standard centralized UPS setup which at best would only score 95 percent. According to CNET, these are efficiency levels that the EPA doesn't envision as practical until at least 2011. But that ain't all -- hit that read link for the whole sordid affair, but not before you check out the video of a server itself after the break.

Continue reading Google's Data Center secrets revealed!

Intel Core 2 Quad S-Series shaves power consumption to 65W

by Darren Murph posted Mar 29th 2009 at 10:44AM

In a relatively hush-hush manner, Intel recently slipped out energy saving versions of its Core 2 Quad Q8200, Q9400 and Q9550 CPUs, all of which are suffixed with a simple "s." Put simply, these S-Series chips are built using the same 45 nanometer process technology as used on the regular models, and aside from TDP, all the specifications are exactly alike. The difference comes in power consumption, as the S crew sucks down just 65 watts compared to 95 watts in the standard issue models. Tom's Hardware had a chance to handle, benchmark and report on these new power sippers, and lucky for you, they found performance to be equal to that of the higher power chips. Granted, you'll have to pony up a few extra bucks in order to treat Mother Earth (and your energy bill) better, but at least we're working down the power ladder instead of the other way around.

[Via Tom's Hardware, thanks Jonathan]

Probabilistic logic makes microchip more energy efficient

by Darren Murph posted Feb 9th 2009 at 6:09AM

We'll be straight up with you -- there's a lot of fancy work going on with this one that laypeople will have a tough time grasping, but the long and short of it is this: a team from Rice University (Krishna Palem pictured) and Nanyang Technological University have created a microchip that "uses 30 times less electricity while running seven times faster than today's best technology." Already crying snake oil? Not so fast. By trashing the traditional set of mathematical rules (that'd be Boolean logic) and instead applying probabilistic logic, researchers have figured out how to deliver similar results with a fraction of the energy. The tech is being dubbed PCMOS (probabilistic CMOS), and could eventually end up in embedded systems and even cellphones. In the case of the latter, this type of chip will be able to display streaming video on a minuscule display with more artifacts than usual, but due to the small screen size and the human brain's ability to piece together nearly-perfect images, the errors involved would be all but forgotten. Meanwhile, your battery bar would still be nearly full. We always heard there was beauty in imperfections -- now, at long last, we finally get it.

Sony's BRAVIA VE5 series brings zero-watt standy, HCFL backlighting

by Darren Murph posted Jan 7th 2009 at 6:49PM

During the run-up to CES, we heard through the grapevine that eco-friendly and well-connected HDTVs were going to be all the rage in early January, and so far, those premonitions are spot on. Sony's new BRAVIA VE5 line sucks down around 40% less power than many of the company's other LCD HDTV models, and there are two main developments to thank. First, the 52-inch KDL-52VE5, the 46-inch KDL-46VE5 and the 40-inch KDL-40VE5 all tout a zero-watt standby switch, which -- when flipped on -- cuts power usage to "nearly zero watts." Additionally, this Energy Star 3.0-compliant trifecta is the first from Sony to sport the micro-tubular Hot Cathode Fluorescent Lamp (HFCL), and as if that wasn't enough, there's even a motion sensor that can turn the set off if no action is sensed and a ambient light sensor for good measure. All greenness aside, each of the three also boasts Motionflow 120Hz technology, a USB port for loading up digital media files, the BRAVIA Engine 2, BRAVIA Sync, four HDMI inputs and 24- True Cinema. Check 'em this summer for currently undisclosed prices; full release is after the break.

Continue reading Sony's BRAVIA VE5 series brings zero-watt standy, HCFL backlighting

Researchers achieve new efficiency record of blue OLEDs

by Darren Murph posted Dec 23rd 2008 at 3:55PM

Ever since Sony's XEL-1 hit the market, pundits have pointed to the (comparatively) short-lived blue OLED material as its biggest hamstring. Researchers have been toiling around the clock in order to bring the blue lifepsan in line with its green and red siblings, and now it seems like a team of Gators are that much closer to the promise land. Reportedly, a gaggle of whiz-kids from the University of Florida have "achieved a new record in efficiency of blue organic light-emitting diodes, and because blue is essential to white light, the advance helps overcome a hurdle to lighting that is much more efficient than compact fluorescents." Franky So (pictured) and his diligent crew were able to reach a peak blue OLED efficiency of 50 lumens per watt, which is halfway to his goal of at least 100 lumens per watt. Hurry it up, folks -- CES is just around the corner.

[Via Physorg]

Pixel Qi conjuring up black magic technology for 40-hour laptops

by Darren Murph posted Nov 29th 2008 at 3:40PM

Sure, you can go out and get yourself a laptop right now that'll go 12.5-hours strong, but what if your portable computer could nearly outlast your Aigo A215? While L's mythical quad core lappie came close in theory, Mary Lou Jepsen's (the former CTO at OLPC) startup is hoping to eventually create a machine that can last between 20 and 40-hours between charges. Pixel Qi is being pretty closelipped right now (and understandably so) about what exactly it has going on, but we get the idea the secret sauce is in a highly efficient display that will require far less power than traditional LCDs. The best part? We could see one of these longevous notebooks in the pipeline as early as 2H 2009, so we'd probably start stocking up on Red Bull right about now.

South Korean scientists claim development of "true blue" for OLED displays

by Darren Murph posted Nov 24th 2008 at 3:52AM

It's no secret that OLED gurus have had the toughest time improving the life of blue luminance to match the lifespans of its red and green counterparts, but a team of South Korean scientists have purportedly stumbled upon (or developed, as it were) a breakthrough "true blue" material that can "accelerate the development of next-generation organic light-emitting diode (OLED) displays." Up until now, scientists have been able to create highly efficient green and red OLED materials, but the inability to make a true blue OLED material was really holding things back. So, now that this little hurdle has been hopped, how's about we get some big screen OLED HDTVs out to the people?

[Via OLED-Info, image courtesy of Universal Display]

GE developing smart appliances: the future just got a bit less interesting

by Joseph L. Flatley posted Oct 30th 2008 at 7:31PM

You know, the future used to be so much cooler before we gave up on our dreams of flying cars. Now instead of powering jet engines, it looks like our automobiles will power household appliances, and household appliances will use technologies like GE's SmartMeter to communicate with the local power grid. This could lead to such sexy contrivances as refrigerators that wait until off-peak hours to run the automatic defrost cycle, and (in coordination with tiered pricing for electricity and some new energy storage options) a bit of relief from the old fossil fuels. Maybe this is not exactly the stuff of William Gibson novels, but to hear more about "Energy Management Enabled Appliances" go ahead and hit that read link.