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[aprssig] (Slightly OT) What is solar panel power output?

Dave Baxter Dave at emv.co.uk
Wed Sep 10 12:29:18 UTC 2008


Cheers Bob..

	Dave.
 

> -----Original Message-----
> From: bob evinger [mailto:wd9eka at evinger.com] 
> Sent: 10 September 2008 12:18
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] (Slightly OT) What is solar panel power output?
> 
> Outback Power FX80. It is rated at 80 amps output. They also 
> make an MX60, 60 amps out.  they will take up to 140 volt 
> open circuit string of like sized panels and step it down to 
> 12/24/48/60 volt standard dc voltages. 
> they are also programmable for odd output voltage as well.
> 
> These are the most expensive, I think I paid a little over 
> 500 for my fx80 but it makes up for the difference in panel 
> quantity plus a little.
> 
> There are a couple of other manufacturers that make lower 
> power versions of mppt controllers. Cant remember the power 
> ratings, maybe 20-25 amps that are $200 dollar range. THe 
> lower priced units dont have as many frills obviously.
> 
> bob
> 
> 
> On Wed, 10 Sep 2008, Dave Baxter wrote:
> 
> > .
> > .
> > .
> > Sorry probably way more than most on here wanted to know.
> > .
> > .
> > .
> >
> > Far from it!   Who's MPPT box did you use?
> >
> >> -----Original Message-----
> >> From: bob evinger [mailto:wd9eka at evinger.com]
> >> Sent: 09 September 2008 23:45
> >> To: TAPR APRS Mailing List
> >> Subject: Re: [aprssig] (Slightly OT) What is solar panel 
> power output?
> >>
> >> actually those numbers tell a lot. Solar panels are 
> current sources. 
> >> That amp rating is short ciruit current, and the current it will 
> >> provide into a battery with proper sized wire should be slightly 
> >> less.
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> 
> 
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