January 2010
Editorial
A lost opportunity
There is an old saying that when handed lemons, one should look at the situation as an opportunity to make lemonade. That's also the message conveyed...
Readers letters
Oh go on. I just read the December issue of Energy Efficiency and Technology and was impressed by the collection of articles. I receive many magazines...
Features
No hot air about VFDs
There are well-known benefits of using variable-frequency drives (VFDs) to reduce energy consumed by induction motors. Federal, state and local agencies...
Ready or not, here comes smart metering
Get ready for a new acronym. Advanced metering infrastructure (AMI) is about to enter the mainstream lexicon of energy efficiency. Electric utilities...
Fiber optics for reliable wind energy
Consider some of the logistics for a typical wind farm. The megawatt-scale turbines in these installations typically have towers anywhere from 40-to 100-m...
Bountiful power harvesting
A wide range of low-power industrial sensors and controllers are turning to alternative sources of energy as their primary or supplemental source of power....
IC Design Goes Green
In today's designs, application-specific integrated circuits (ASIC) and field-programmable gate arrays (FPGA) must dissipate as little power as possible....
A lesson in quick-and-dirty solar charging
The Burning Man event is well-known for its tribute to alternative lifestyles and an ecological creed. But among the most notable facets of Burning Man...
Departments
Cutting-edge cooler hits 90% efficiency with help from networked controls
Despite the fact evaporative coolers can use only a small fraction of the power needed for traditional chillers, they have a reputation for losing efficiency...
Time, Life, and VFDs
More than 100 variable frequency drives control the 240 motors that run the HVAC fans and pumps in the Time Life Building in New York's Rockefeller Center....
Special stator windings boost efficiency in motor/generator for hybrid vehicles
To meet the demand for drive motors / generators needed for hybrid vehicles, engineers at Remy International Inc. designed a line of off-the-shelf devices...
Green tech puts electronics distributors in the black
Here's one gage of what's going on in green technologies: Big-name electronics distributors say they are getting a boost from sales of equipment aimed...
The need for a green display strategy
In case you have not heard, California will be regulating the energy that can be used by television sets after January 1, 2011. Despite the complaints...
An update on the green job pool
We are still in a hiring trough with demand only increasing for top-quality candidates. But the more narrow market for exceptional talent is actually...
Energy figures of the month
Smart grid funding ramps up The Dept. of Energy has begun doling out $3.9 billion earmarked for smart grids from stimulus legislation. And the investment...
Lighten up
Forest Jehlik, a vehicle systems engineer at the Center for Transportation Research at Argonne Laboratory lifts the lid on six myths surrounding plug-in...
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In This Issue
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Videos
The Cleveland Museum of Natural History and The SmartHome Project
Featured Suppliers
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