That's very cool to hear. I have heard over the years that the defacto EV efficiency is about 3 miles per kWh, measured at the battery, or 333 Wh per mile. So Tesla has done a great job. I wonder what the Bolt and some other longer range EVs can do.

Peri

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------ Original Message ------
From: "Mark Hanson via EV" <ev@lists.evdl.org>
To: ev@lists.evdl.org
Cc: "Mark Hanson" <markehans...@gmail.com>
Sent: 30-Dec-21 06:17:32
Subject: [EVDL] Tesla Y actual wall outlet efficiency

Hi folks
My heavy 4400lb Tesla Y is more efficient than I thought, close to EPA rating, 
measured 265 watt hours per mile at the wall outlet with a GE KWh meter over 
144 miles various hwy/city driving.  The laptop screen car display shows 
220-240 wh/mi at the car/battery which doesn’t include charger/batt 
inefficiencies.  My previous electric Karmann Ghia 1974 “ELEC KAR” tag was 330 
wh/mi actual at the AC outlet.  My Bolt and Leaf are slightly less efficient 
than the Tesla but all my conversions over the years were in the 330ish range, 
much less efficient than present day factory EVs.
Have a renewable energy efficient new year,
Mark

Sent from my iPhone
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