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May 1, 2009 | 17
Imagine all the folks on the waiting list for the Chevy Volt or a plug-in Toyota Prius plugged in their cars at once. The result? Blackout, as the world's largest machine (otherwise known as the electric grid) is overloaded.
What's needed is a device that can sense when there's sufficient capacity to juice up an electric car and when there's not—a so-called "smart charger" (which would, of course, be a key component of a "smart" grid).
And that's exactly what engineers at the Pacific Northwest National Laboratory in Richland, Wash. have created. "If a million owners plug in their vehicles to recharge after work, it could cause a major strain on the grid," said PNNL engineer Michael Kintner-Meyer in a statement. "The Smart Charger Controller could prevent those peaks in demand from plug-in vehicles and enable our existing grid to be used more evenly."
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