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70 Posts
Discussion Starter #1
My inverters include transfer switches. But I also have
manual switches labeled UPS/Line/Off.

So my 4.5 kW solar system is a UPS, an un-interruptible power
supply.

One of the things that made me decide to stay with 96 volts
in my EV was that I could split the pack, parallel both halves
with my 48 volt Solar System batteries, doubling my reserve
capacity. When the Sun shines all the batteries get charged.

The coffee pot, a (electro-mechanical )clock, and the telephone system
(they share the same outlet) stays on the grid, allowing me to calculate
down-time, and see when the system comes back up.

I have a lightning rod above my roof-top solar panels, direct to ground.

John in Sylmar, CA
My doctor said yesterday "I doubt global warming, but burning oil is
TREASON".

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70 Posts
Discussion Starter #2
That's a reasonable reason, John. Back before there were disconnects, a
friend found another way to do this sort of thing. He kept a charged pack
and a converter. When lights would go out, he'd just run extension cords to
what he needed. <g>

It wasn't big enough to run the fridge/freezer, so he just kept a number of
jugs of water frozen in the freezer. His electric ice chest could stand a 2
day outage.
----- Original Message -----
From: "JS" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Wednesday, October 10, 2007 10:43 AM
Subject: [EVDL] Vehicle to house


> My inverters include transfer switches. But I also have
> manual switches labeled UPS/Line/Off.
>
> So my 4.5 kW solar system is a UPS, an un-interruptible power
> supply.
>
> One of the things that made me decide to stay with 96 volts
> in my EV was that I could split the pack, parallel both halves
> with my 48 volt Solar System batteries, doubling my reserve
> capacity. When the Sun shines all the batteries get charged.

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For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
 
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