🚀 go-pugleaf

In sci.physics jg <jg@nospam.com> wrote:

<snip>

> Electricity here costs 24c per unit.
> 1kWh for 5 hours = 5kWh per day x 24c = $1.20 x 365 days = $438 pa rough 
> estimate.
> Without the 'welfare'.
> If it's too optimistic then adjust the payback time accordingly, still 
> only talking about the time before they start saving you money instead 
> of being no worse off, unless your situation is such that you are better 
> off paying more for power and using or borrowing $2000 for something 
> more profitable.

The only number I care about is ROI.

It is a rather simple calculation: Total cost / savings per year.

BTW, rates here are tierd:

1 $.13/kWh 315 kWh
2 $.16/kWh 410 kWh
3 $.29/kWh somewhere around 620 kWh, but never gone that high
4 $.33/kWh
5 $.36/kWh

Plus a fixed of around $.03/kWh for misc.

Since, except in the middle of summer, most of the usage is tier 1 and
2 rates, it is difficult to get a return in less time than I have left
to live or would live in this house.

Now a big family with a bunch of kids and a big house to cool would be
in a different position if a big part of their usage were tier 3 and
above.

Here's a point to ponder; I found I could get an ROI of a couple of years
buying a used generator run off gas running it in the summer only.

But I don't want a big ass, noisy generator beside my house nor would the
neighbors like it.


-- 
Jim Pennino