November 1, 2009
Editorial
People don't care about energy efficiency.
The award-winning industrial design firm IDEO is perhaps best known for coming up with innovative products such as the Palm V, the Steelcase Leap Chair,...
Readers' Letters
You go, EE&T! I got the first issue of EE&T last week and have not been able to put it down. I take it almost everywhere with me to read and reread when...
Features
Toys that entertain (and teach)
Build-your-own battery pack for your iPod and other devices Does someone on your holiday gift list just hate it when their iPod or cell phone dies? Why...
Energy storage for short shots
Consider the ultracapacitor. It is an energy storage device well-suited for short-term power delivery. Also known as supercapacitors or electrochemical...
Software takes aim at energy efficiency
Consider an electrical system the design of just about every component must be based on the amount of current draw. Higher amps may mean more expensive,...
Motor control turns to the home
High-efficiency motor drives used to be items only found in factories. Led by strong impetus from the Energy Star program (which now includes a new Super...
The quest for compressed-air efficiency
It's no longer news that the growing emphasis on sustainability is leading the charge for higher efficiency. When discussing energy use in manufacturing...
Climate legislation could boost energy efficiency investments
Cap-and-trade legislation has gotten a lot of bad press lately because of indications that taxes on carbon emissions could hurt U.S. competitiveness....
In the Hunt for scavenged power
For an environmentally conscious world, batteries are out, energy harvesting is in. Despite all their benefits, batteries are still potential sources...
Measure what you use
The industrial sector consumes about 32% of the total electrical energy in the U.S. And approximately 64% of U.S. electrical power goes into ac motors....
Departments
ENERGY WEBSITES
What's new at eetweb.com: White paper library Download free white papers on a range of topics, such as: Hybrid electric vehicle drives Drive systems should...
Green transistors promise greener pastures for IC power consumption
Integrated circuits (ICs) consume significant amounts of power, so much so that the overall power that ICs account for has become an international problem....
Software helps create a more efficient washing machine
Researchers at German switch manufacturer Marquardt Gmb used Maple technical-computing software from Maplesoft, Waterloo, Ont., to design a 3-D Hall sensor...
Here comes the hybrid water heater
The Hybrid Water Heater from General Electric adds a second type of heat source, a heat pump, to a traditional electric water heater, cutting the electricity...
One year away
This month marks a significant milestone: we are 12 months away from the Energy Independence and Security Act of 2007 (EISA) taking effect. EISA made...
Know your PV cells
In 1839, French scientist Alexandre-Edmond Becquerel noticed that certain metals produced electric current when illuminated with sunlight. When a photon...
ON THE ENERGY FRONT
Energy outlook for the world The International Energy Agency recently came out with its World Energy Outlook detailing current worldwide trends in energy...
Lighten up energy myths
BIOFUEL MYTHS Will plant-based fuels be able to replace oil or cut greenhouse emissions? Not according to Michael Grunwald, an award-winning environmental...
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In This Issue
Featured Content
Designing for Standby Mode, Part 1
Tony Armstrong from Linear Technology Corp. outlines design considerations for standby power mode.
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Videos
Joel Young from Digi International demonstrates several applications that save energy using iDigi technology and highlights Digi’s Go Green wireless design contest.
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