November/December 2011
Editorial
Renewable energy according to a TV pundit
Sell! Sell! Sell! Don't buy! Don't buy! Don't buy! These are the sounds you'll probably hear if you happen to tune in to a CNBC program called Mad Money...
LETTERS TO EE&T
Potential sites for solar power The column on myths in a recent issue, (The good news on solar power, Sept. - Oct.), mentions rooftops and vacant land...
Features
LED makers tackle costs
A maturing solid state light industry tries to field more economical products that live up to their own performance claims....
Basics of digital LED control
Most engineers are quite familiar with typical low-power-indicator LEDs, whether they be surface-mount or the classical through-hole packages. All that's...
The energy equation of variable speed drives
It is interesting to look at figures from the Energy Information Administration about where energy gets consumed in our economy. These figures reveal...
Inverters lighten up
New topologies let inverters shed a lot of weight. There are big implications, not just for electric vehicles, but also for renewable energy sources of all kinds....
Legislation
Occupy the holidays!
I've been by the Occupy encampment in Oakland, Calif. a number of times the last few months. I was curious to see what was going on down there. Far from...
Energy Shorts
Dial up efficiency with smartphone apps
Tool calculates energy savings of VFDs A new tool from Rockwell Automation lets engineers use mobile devices or computers to calculate the potential savings...
Company News
Intertek, Chicago, a leader in testing, inspection, and certification services for the renewable industry, has been named an EPA Recognized Certification...
The growing pains of PV power
Solar energy is on the rise, but the news isn't all sunny. Experts say it could be tricky to integrate solar power generation facilities into the existing...
Florida gets its first zero-net-energy campus
Abuilding complex in Anna Maria City, Fla. will be the state's first zero net energy campus when completed in 2012. Developers plan to make the five LEED-Platinum...
The death of lead-acid batteries?
Lead-acid batteries have been around for over a century and go into more than 100 million vehicles annually, including boats, forklifts, and wheelchairs,...
Triple-decker solar cell sets new efficiency record
Engineers at Sharp Corp. recently set a new record for the efficiency of non-concentrating solar cells. They did this by building a three-layer compound...
Student projects weren't like this in our day
Students at Brigham Young University have had a good year when it comes to electric vehicles. Two of the engineering school's class projects recently...
ENERGY WEBSITES
Basics of energy efficiency Turn to this section of http://eetweb.com for tips on improving the efficiency of machines and systems. Recent topics include...
Energy Figures
Energy Figures of the Month
Vehicles with lowest fuel economy for 2012 model year Rank Manufacturer/Model MPG combined/city/highway 1 Bugatti Veyron 10/8/15 2 Ford E350 Wagon 11/10/13...
Invention of the Month
Plumbing for power: Energy harvesting turns temperature differences into electricity
The engineering team at Nextreme Thermal Solutions, Durham, N.C., have developed a new way to convert small temperature differences into electricity using...
Energy Myths
Efficiency just isn't for real?
Consumers uneducated in engineering are often confused about energy efficiency. Sara Hayes, a senior researcher at the American Council for an Energy...
LEDs & e-mail: False stories with long legs
Rick Nelson, editor in chief of Electronic Design News, recently shed some light on myths surrounding LEDs and e-mail. LEDs: Solid-state lighting could...
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Videos
The Cleveland Museum of Natural History and The SmartHome Project
Featured Suppliers
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