Greenlings: What's the difference between kW and kWh?

Filed under: EV/Plug-in, Hydrogen, AutoblogGreen Exclusive, Green Daily, Greenlings

Understanding electric and plug-in vehicles requires a slightly different knowledge set than what mechanics and drivers have needed to know for decades. One of the most obvious new concepts is the large battery pack and electric motor added to the car. The capacity values of these devices are be written using kW (kilowatt) and kWh (kilowatt hours), but don’t think that a 90 kW motor is anything like a 90 kWh battery pack. That little h makes a big difference. Exactly what is the difference? Well, that’s what we investigate in this week’s Greenlings. Follow us after the jump to learn more.

[Sources:
Idaho National Lab]
Photo by Vince Alongi. Licensed under Creative Commons license 2.0.

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Greenlings: What’s the difference between kW and kWh? originally appeared on Autoblog Green on Thu, 19 Nov 2009 19:54:00 EST. Please see our terms for use of feeds.

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