Jim, et al, To further muddy the waters, I have recently seen the approach to quantify electrical power performance in terms of horsepower. Insights/comments from those wrenches more knowledgeable in these matters are always welcome.
Thanks, Bill Loesch Solar 1 - Saint Louis Solar ----- Original Message ----- From: North Texas Renewable Energy Inc To: RE-wrenches Sent: Monday, March 14, 2011 11:45 AM Subject: [RE-wrenches] Lithium-ion battery charging Wrenches I am researching a GT PV installation to power an EV charging station at a new car dealership nearby. After researching l-ion technology and charging information on the www, I see that most references to l-ion and EVs in general refer to battery capacity in kWh instead of Ah. Is kWh the new standard for battery propulsion in cars or is it used muddy the conversion from Ah similar to the cold-cranking amps standard for starter batteries? I know kWh battery capacity could be calculated assuming a constant charge/discharge rate but cars will seldom be operated at a constant discharge rate. Thanks for some clues Jim Duncan North Texas Renewable Energy NABCEP Certified Solar PV Installer No.031310-57 TECL 27398 nt...@1scom.net 817.917.0527 www.ntrei.com ------------------------------------------------------------------------------ _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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