[Oeva-list] fast charge economics

Jeff Kim jeff.shorepower at gmail.com
Mon Apr 18 23:27:03 PDT 2011


Right now the cost is at least $50k for an installed fast charging station,
if utility upgrades are included.

Jeff

On Mon, Apr 18, 2011 at 7:19 PM, Alan Batie <alan at batie.org> wrote:

> I was doing some calculations, thinking about the economics of the fast
> charging stations (fall out from "wouldn't it be nice if someone would
> put a fast charger in Newport!").  They obviously won't break even until
> the ev numbers get a lot larger, but what would it take to make them
> viable on their own?  These are obviously gross ballpark thoughts, but
> they do seem to me to show that the infrastructure can support itself in
> the long run...
>
> I started with the older number of $50K, as I think the $18K number I've
> heard more recently is probably just for the charging station itself,
> and it's not going to be cheap to run 480V power in to a lot of places.
>  On the other hand, when evs get common place, you're going to need more
> than one, and that will be spread out, and I think the $50k is way too
> high, so maybe $25K is a better figure?
>
> I started working my way up from the cost per charge, but it's simpler
> to say "we want it to break even in 5 or 10 years".  To keep lines
> short, let's figure an average of 6 charges per day, or 90kwh/day at a
> commercial rate call it $0.10 or $9/day.  You've got 1825 days in 5
> years or 3650 in 10.
>
> So, you have a per/day revenue need:
>
>      5yr  10yr  +pwr cost:  5yr   10yr  cost/per charge: 5yr  10yr
> $25K  $14   $ 7              $23    $16                   $4    $3
> $50K  $28   $14              $37    $23                   $6    $4
>
> (with gross rounding and not counting other costs of operation)
>
> At a conservative 3miles/kwh, that works out to 45 miles, which compares
> nicely with a Prius 48mpg at $3.80/gal.
>
> It would be interesting to know just what it really would cost to put in
> a fast charge station at some random business, say the Newport Aquarium,
> the Evergreen Aviation Museum, Chinook Winds and Spirit Mountain
> casinos...  $25K seems like a small price for a tourist agency to come
> up with too...
>
>
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