Kathleen Nelms Have you
been looking through his
garage drawers or what
adapters does he have that
you know he has? And he
can charge an electric car
with adapters he must
already have .... are you sure
about this? If so, that's
what I call confidence.
Turns out the #1 show
stopper for electric vehicle
home-charging stations
would be that they typically
run on 240VAC and no
conventional home in
Mexico is wired for 240VAC
and most will be fed with
120VAC from a 12 gauge
wire with 20 amps maximum
for the conventional Mexican
house. With 7200 watt
typical output, that's going to
be 7200W/240V and thus
our wiring for the charger
alone would be 30A on each
leg of the 240VAC source for
a total of 60A which would
mean you'd have to account
for other appliances as well
and continue to reduce the
gauge in order to increase
the diameter of the supply
cable until you met the new
loads that would be
experienced with a car-
charger added . Additionally
if a 7200 watt charger could
be found that runs on
120VAC, at 7200 watts that
is a 60A load, 3x the capacity
of what most houses are
wired for. The #2 show
stopper once you get
everything wired up and go
to that expense, plus the
expense of get the electric
company running another
meter from the other leg of
the 240VAC, that means you
will quickly go over the
subsidized Kw hr rate which
will increase your price per
Kw hour substantially due to
the graduated power price
climb.