[Greenbuilding] Solar electric configuration details

Lawrence Lile LLile at projsolco.com
Thu Nov 9 16:46:11 CST 2006


Sorry, here is a clarification. 

My total load on the house might be 700-1000KWhr/month or maybe 34
KWHR/Dy.  This is all on grid power right now. This would cost $40 grand
to take off the grid, which is prohibitive. 

The portion of the load I want to supply with solar power is about
2KWHR/dy.  That's 5% of my total house load that goes off the grid. 

The panels have a capacity of 2.5KWHR/DY after losses, which can meet
the teeny part of my load that will be off the grid.  

Thanks for asking, Corwyn.

 
 
Lawrence Lile, P.E., LEED AP

-----Original Message-----
From: Corwyn [mailto:corwyn at midcoast.com] 
Sent: Thursday, November 09, 2006 4:41 PM
To: Lawrence Lile
Cc: greenbuilding at listserv.repp.org
Subject: Re: [Greenbuilding] Solar electric configuration details


On Nov 09, 2006, at 15:34, Lawrence Lile wrote:
> 6. When I total my loads, sans freezer, I get about 420 watts peak and
> 2KW per day usage. I am afraid the freezer might double the size of
the
> required system and blow the budget altogether.

> 8. I calculate 6 solar panels at 130 watts each for a total of 780 
> watts
> peak.  At 4.5 hours per day average sun, that's about 3.5 KWHR/Dy 
> before
> inverter and charger losses, or about 2.5KWHR/day after losses.

>  It might produce 5% to 10% of my electric needs.  This
> project would have to be worth it from power quality and backup
> considerations to make it worth doing economically.

Confused by these three statements.  If you are producing 2.5 kWh, and 
using 2kWh, why are you only taking care of 5-10% of your needs.  
Sounds like it should do 100%.  What am I missing?

Thank You Kindly,

Corwyn
-- 
Corwyn
Kermit didn't know the half of it...
http://www.greenfret.com/
corwyn at greenfret.com




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