[RE-wrenches] Fwd: Charge control question

[jay peltz]

Hi Allan,

If it were me, I would do total old school.  Just parallel them with a standard non MPPT CC.

Jay

Peltz power

On Oct 11, 2012, at 10:04 AM, Allan Sindelar wrote:

> Wrenches,
> I'm posting this for Carl Bickford, prof emeritus of the renewable energy training program at San Juan College in Farmington, New Mexico. I'll forward your responses to him.
> I have a very interesting and talented friend who is rebuilding a blue-water sailboat for a round-the-world trip. He is well versed in solar and is trying to use a relatively large array to charge a big battery bank that will be used for propulsion as well as general electrical. The propulsion system will be backed up with a propane generator he is building himself out of a Toyota truck engine.
> 
> As you can imagine, there is no place on a sailboat where shading isn’t a problem. He and I were wondering if there were products out there that could MPPT either individual modules, or small groups of them for 12 V battery charging. I have seen such things for the inputs of grid-tied inverters, but nothing yet for off-grid. The other             choice is to go with many small MPPT charge controllers like the ones from Solar Converters.
> 
> Any advice you can offer?
> 
> Take care,
> Carl 
> 
> Carl Bickford
> Professor of Engineering and Renewable Energy
> San Juan College
> 4601 College Blvd.
> Farmington, NM 87402
> 505-566-3503
> bickfordc at sanjuancollege.edu
> 
>  
> 

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