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EE&T News: March 12, 2012

EE&T News: March 12, 2012

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EE&T News
The latest news in energy efficiency

March 12, 2012

EE&T News
You need a permit for that !??
The basics of real power
No end in sight for motor efficiency gains
Can EV batteries be recycled?
Solar connectors feature low contact resistance

Featured Content

You need a permit for that !??

Industry organizations that include NEMA have commented on new building code proposals in California that, in the name of energy efficiency, would require permits for something as simple as changing the ballast in a fluorescent light fixture. On the face of it, a building permit for a ballast changeout does seem ridiculous. As a practical matter, many people won’t pay much attention to the rule, which is a bit of a problem in itself.

FULL ARTICLE


The basics of real power

Even engineers sometimes get confused by energy-related terms such as VAR, Watt-hour, and power factor. Here’s help sorting out the differences. A one-kilowatt oven that is on for one hour will consume one kilowatt-hour of energy. Are energy units that easy? On rare occasions, they are. When they are not, it helps to have a fundamental understanding of power and energy.

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No end in sight for motor efficiency gains

Many engineers look at NEMA Premium grade as the gold standard for induction motor efficiency. But technical innovations now make possible even more power-miserly designs. By now, most engineers who work with induction motors know that new efficiency standards went into effect for them last year. But there are ways to improve efficiency levels above even those mandated by the new regulations.

FULL ARTICLE


Can EV batteries be recycled?

Sales of such electric vehicles as the Toyota Prius, Nissan Leaf, and Chevy Volt are on the rise, and so, too, is the need for a comprehensive recycling strategy once their batteries wear out. The rechargeable batteries used in electric vehicles (EVs) and hybrid electric vehicles (HEVs) are expected to last eight to 10 years, after which they must be replaced. But there is still an open question about what to do with these partially spent batteries once the time comes.

FULL ARTICLE


Energy shorts

Tesla Motors hits a brick wall
Where to go for Zhaga testing
Now up and running: A database of energy harvesting info
DoE says, LED lighting will mushroom
Solar connectors feature low contact resistance
Li-ion battery sets a record


Products

Solar connectors feature low contact resistance

Automation Systems Interconnect Inc. (ASI) introduces a new line of solar connectors. The ASIPV series is compatible and intermateable with industry standard 4-mm connectors. The new connectors are available with a 1,000 Vdc (IEC), 600 Vdc (UL), and 25 A rating. Both male and female contacts have a wire range of 12-10 AWG.

FULL ARTICLE



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