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| 3ndy... |
 Posted: Sun Oct 04, 2009 5:35 pm |
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| hhc314... |
| Posted: Mon Oct 05, 2009 3:24 pm |
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On Oct 4, 8:35 pm, 3ndy <komis... at (no spam) gmail.com> wrote:
[quote:e6920c5a74]Go Green Create Your Home Solar Power
Save your Money Today for Bill!http://earth-4energy-review.123probiz.com
Go Green :)
enri patuly
Marketinghttp://www.gogonai.info/?id=komisiqu
[/quote:e6920c5a74]
I suspect that many of the promoters of Home Solar Power often
overlook that thing that accountants refer to as the "cost of money".
Essentialy, this accounting concept refers to the the interest earned
or lost over the lifetime of the investment. Let's simply describe
this as the interest that you lost over the lifetime of your solar
energy system if you had paid cash for it from your savings, or the
interest that you will have paid over that same lifetime if you have
borrowed or otherwise financed the cost of your solar energy system.
On a small scale home system, the amortized cost of such a system,
when maintance and replacement components are factored in, will in
nearly all cases exceed that of purchasing commercial grid power. If
you build a system like this, the only justification for the excess
expense in that you do it as recreation, or that you live off-grid.
If you study engineering at any serious university, you will be
required to take at least one or two courses in "Engineering
Economics" which educates student engineers on such matters...and more
serious ones.
Still, we dream. In my case, the dream has been about owning a home
on land containing a fast moving stream with a millpond, and
sufficient vertical drop to power a water wheel driving either a
generator or alternator. I believe that I could nearly make such a
system operate on a cost break-even basis, provided that I don't under-
estimate the maintenance and replacement costs.
Still, just a dream.
Harry C. |
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