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The first half megawatt - Page 10

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Posted by T. Keating on April 8, 2011, 8:26 pm
On Tue, 5 Apr 2011 19:09:30 -0700, Trawley Trash

Get a Panasonic Inverter Microwave.   ~$00-$50..
Make sure the model you buy has the inverter logo on the glass in the
lower left hand corner of the door.

Those Pana's rectify AC into DC, then feed the output into switching
power supply.  (Thus, it will work with all sorts of modified AC
waveform inputs.)

You can dial down the power settings to work with a MSW inverter.
(I've done it after hurricanes..)

Here is a table power settings verses input wattage for a NN-T654
model measured using a Kill-a-watt.

setting      Watts    
10    1850
9    1610
8    1410
7    1160
6    1030
5     870
4    570
3    430
2    430 (*)
1    430 (*)

(*) varies duty cycle.

Posted by Giga2 on April 6, 2011, 8:01 am

Can you not just get a hose and give them a good rinsing?

Posted by Desertphile on April 6, 2011, 4:09 pm
 On Tue, 5 Apr 2011 08:53:02 -0700, Trawley Trash

Where I live 100% of the electricity comes from PV panels. If we
had access to city electricity we would switch over: city
electricity costs much less than electricity from photovoltaic

Desertphile's Desert Soliloquy. WARNING: view with plenty of water
"Why aren't resurrections from the dead noteworthy?" -- Jim Rutz

Posted by m II on April 5, 2011, 4:00 pm
Hash: SHA1

You obviously do not understand electrical units!

Now other than your very obvious thread title displaying not knowing the
difference between power and energy... where did you get the ridiculous idea
you would ever "break even" on this investment?

If you put out $1,000 for the materials and installation the lost
investment interest on that, alone would come to ( I am being kind.. I
average more like 9-10%)
       $1000 x 5% = $50 per year.

In your "15 year payback time", you bragged, the interest lost would amount
to $,250 (uncompounded even).  In the time you take to "break-even" you
will have repair and probably be replacing some of these panels with new
ones.  I doubt your grid-tie will survive the 15 years, especially with that
poor quality European energy, it is attached to.

In short, until systems get a lot cheaper the payback time is "until death
do us part". Then it will cost your estate to have it removed.
BTW: In America you would be removing that system to sell your house unless
you want to deep discount it. Everybody wants one but to start fresh with
their own. This will change.

I have some swamp land to sell you in Florida.  Absolutely no crocodiles,


Version: GnuPG v1.4.10 (GNU/Linux)


Posted by Giga2 on April 5, 2011, 4:09 pm

Oh yeah, opportunity cost. Always easy to forget. I think 5% is a reasonable
estimate for such figures. So the question is will it still be worth quite a
lot in 15 years?

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