Re: Switch between power sources


"Bill Bowden" <wrongaddress@xxxxxxx> wrote in message
news:1133672973.937598.266330@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > It costs $10000 for the special meter etc. and
> > they only let you feedback 2.4kw
>
> $10,000 seems high. Somebody is making a lot of money selling sinewave
> inverters. I suspect it can be done for $1000 or less.

That's not the inverters. That's *just* the meter and the right to feedback
into the grid.

The inverters, and batteries, and solar panels are *on top* of all that!

>
> > my computer alone cost nearly $500 per year run.
>
> Really? My computer runs 24 hours a day and costs $7.50 a month.

I meant to say "computers". I've measured the input current to our two
UPSes and we burn 400W 24 hours per day (a bit less at night when the LCD
screens are switched off).

We pay 13.7 cents per kwh. Works out at $480 per year.

cheers,
RR


.

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