[RE-wrenches] How large is too large?

[Wind-sun.com]

Most likely they will get sticker shock when they see the price, happens to us a lot. Once that happens you can suggest a more reasonable system, perhaps grid interactive with battery backup that is a lot smaller.

We have done a couple of similar size systems in Mexico, but they had to grid power within 20 miles or so.

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Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
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  ----- Original Message ----- 
  From: William Miller 
  To: RE-wrenches 
  Sent: Monday, March 02, 2009 11:12 AM
  Subject: Re: [RE-wrenches] How large is too large?


  Mark:

  I suggest you do not exceed three battery strings, if possible.

  William Miller


  At 09:58 AM 3/2/2009, you wrote:

    Hello Wrenches, 
    I have a customer that has really likes the thought of being off-grid and they have asked me to design a system for their "lodge".  I have kicked and screamed to get them to consider a grid-tied system using their existing grid service­to no avail.  
    After doing a preliminary load analysis, I have determined that it would take ~35kW of solar and a couple Bergey Excels for it to work along with a 19,000Ah battery bank.  
    So, how big is too big?  If we were to move forward on this, what would be the major obstacles/show stoppers besides the price (as price is not an issue)?
    What are some of the largest battery based systems that you have installed or heard of?
    Any input is welcome. . .besides being told just to run away from this one. . .
     
    REgards, 
     
    Mark Dickson
    Oasis Montana Inc.
    www.oasismontana.com


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