Hybrid PV/Battery/Generator [RE-wrenches]

[Doug Pratt]

Jeff, Joel,
  It isn't sci-fi, I've been commuting in my portable back-up power
plant for the last three years. When the utility power goes out I can
run everything that matters in my house off the EV's battery pack via an
Exeltech 120vdc input 1,100-watt inverter.
  The piece that's really missing is the high-power, bi-directional,
hi-voltage charger/inverter. And that's only because there aren't enough
potential customers yet. The technology is readily available. There's a
22kW 3-phase inverter under the hood of my Prius...it just isn't
designed to talk to the grid...yet. The possibility of using an
automotive hybrid power plant to deliver back-up AC household power has
not escaped automotive engineers. I would expect to see it happen within
the next 5 years.

Cheers,
Doug Pratt

-----Original Message-----
From: Joel Davidson [mailto:joeldavidson at earthlink.net]

Hi Jeff,
Commuting in portable power plants is still sci-fi, but so was a lot of
stuff
we do nowadays.
1) I sat in on utility management discussions about cooperating with
combustion generator owners (hospitals, etc.) when wholesale electricity
went
over $0.75/kWh in the summer of 2000. Splitting 50/50 where the
generator got
$0.35 from the local utility and $0.35 from the ISO started to sound
good to
everyone. We may be in that situation again.
2) April 2001, I listened to Stan Ovshinski (founder of ECD) and Bob
Stemple
(ECD chairman and former General Motors CEO) talk about splitting the
cost of
nickel metal hydride vehicle batteries 50/50 with the 1st user (EV
owner) and
the 2nd user (stationary PV user) to reduce battery costs to each. Too
bad
the younger generation is not as visionary.
3) You and I have watched PG&E get knocked off its high horse a few
times.
That will happen again.
Hang in there. The future is what you make it.
>From one solar powered office to another via the world wide web. Now
that's
sci-fi.
Joel Davidson
Culver City, CA

starpower4u at juno.com wrote:

> My research agrees with John B. and SANDIA, depending on the battery
life
> cycle cost I see anywhere from $0.20 - $0.40/kWh. This does not
include
> the costs of replacing your EV battery pack which will be seeing a
> premature (for the EV) death. I also seem to recall something in
PG&E's
> rules that prohibits this activity, for the non-guerrilla PG&E users
> anyway.
>
> >From the Solar, Wind & Hydro powered office of:
> Jeff Oldham
> Potter Valley, CA
>
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