🚀 go-pugleaf

On 12/03/2013 9:33 AM, jimp@specsol.spam.sux.com wrote:
> 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.
>
>
Those factors would have a huge bearing, we wouldn't reach tier 3 either 
so our electricity seems basically double the cost of yours per kW.
Your gas is probably much cheaper too.

Those rather than the cost of panels (which also still seem higher) 
would seem to make them much less a financial proposition that for us.

I personally would do it at neutral cost for other reasons (some 
specific to where I live), but it's a definite saving on power bills 
here and many buy PV cells for that reason alone.