[RE-wrenches] Energy usage for an electric car

[August Goers]

Here's a good place to go to find mileage:



http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=32557



38 kW-hrs/100 mi for the Tesla Model S.



Todd, isn't your estimate below off by a decimal?



Best,



August



*From:* re-wrenches-bounces at lists.re-wrenches.org [mailto:
re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *
toddcory at finestplanet.com
*Sent:* Friday, September 27, 2013 4:06 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Energy usage for an electric car



a good guesstimate is 3 to 4 kWh/mile



todd







On Friday, September 27, 2013 3:05pm, "Ray Walters" <ray at solarray.com> said:

We did a charging station for a Chevy Volt earlier this year.  We actually
ran the charger for about a week to come up with the design, based on their
mileage ,etc.  This also accounted for battery and inverter losses.  We
added about a 3400 w array (off grid) and they drove about 40 miles round
trip/ day.  We went with the 120 vac slower charger to keep a slower and
more efficient discharge rate of the main system battery.  I believe that
charging at slower rates is almost always going to be more efficient due to
Puekert's exponent.

R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed
Master Electrician Solar Design Engineer 303 505-8760

On 9/27/2013 2:20 PM, William Miller wrote:

Friends:

Have any of you researched the energy usage for an electric car?  The car
in question is a Tesla Sedan.

Thanks in advance.

William



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