[Oeva-list] My First 1000 EV Miles

Jerry McIntire jerry.mcintire at comcast.net
Sat Apr 21 17:10:57 PDT 2007


Congratulations Pat!  Glad to hear another zero-emission vehicle is  
on the road in the Portland area. Sounds like you are learning  
quickly to maximize your range.

How are you doing the "normalizing" calculation?  Starting with the  
kW hours out or in for each trip?

Jerry


> Date: Sat, 21 Apr 2007 00:39:13 -0700
> From: patrick0101 at gmail.com
> Subject: [Oeva-list] My First 1000 EV Miles
> To: s10-ev at evchargernews.com, oeva-list at oeva.org
> Message-ID:
> 	<8c28d7b50704210039y2e8bd751p4aac5f970c9dafee at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Fellow EVers,
>
> I have had my 1998 Chevy S10 EV w/ NiMH for 7 weeks now and I have  
> put 1080
> miles on it with zero emissions.  I have saved about $180 compared
> to driving my old SUV.  I commute in it daily and my wife drives it  
> for
> occasional errands.  I have been logging my distance traveled and  
> the amount
> of charge used for each trip.  I have averaged a (normalized - see  
> note
> below) range of 71 miles per charge.  My best trip was a normalized  
> range of
> 93 miles.  My worst trip was the first day with a normalized range  
> of only
> 39 miles.
>
> You can see the results here:
>
> http://spreadsheets.google.com/pub?key=ppV1T_euCGZwyYfoj040LFQ
>
> To compare the efficiency of trips that are different distances, I am
> 'normalizing' the range (how far would I have gotten at this  
> efficiency
> if 100% of the charge were used).  I realize that the batteries  
> performs
> differently depending on the SOC, but this was the best way I could  
> think of
> to compare a cross town trip to a short errand.
>
> A few of the more interesting trips:
> Days 1 - I didn't yet know how to EV drive (I was lead footing it)  
> and I
> made it home with only 7% charge
> 3/12/2007 a short trip of 7.4 miles to soccer practice only used 8%
> charge that resulted in a normalized range of 93 miles!
> 3/25/2007 was my longest trip of 34.7 miles and I still had 52%  
> left when I
> plugged in.
> My commutes are relatively flat and have the best average compared  
> to other
> trips.
>
> Let me know if you see any formula errors or think another stat  
> would be
> helpful.  I'll send out an update when I hit the one year mark.
>
> Regards,
> Pat
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