In the world of science and mathematics, anecdotes are not not
considered data, and data is not knowledge. Believe what you like. :-)
Bill Bina
On 12/1/2016 9:57 AM, Della Barba, Joe via CnC-List wrote:
Not sure I agree. I have never seen solar panels sold at suboptimal
power points.
I grabbed one random model from the Miami Electrical site someone
mentioned and it is no different:
http://www.suniva.com/documents/OPTXXX-60-4-100%2008%2009%2012.pdf
Max power is 250 watts at 29.6 volts, and max current is 8.44 amps.
If you want 250 watts out of it, you need a MPPT controller to
translate 29.6 volts into whatever you need.
The Renogy is the exact same, it gets max power at 18.5 volts and you
need a MPPT controller to translate into what you need.
Are you implying the Suniva panel actually puts out MORE than 250
watts but they are not telling you that for some reason? Their own
document states MAX POWER. It would be a bit odd to say the least if
250 watt panels were really 300+ watt panels with the right controller.
Joe
Coquina
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of
*Bill Bina - gmail via CnC-List
*Sent:* Thursday, December 01, 2016 09:28
*To:* cnc-list@cnc-list.com
*Cc:* Bill Bina - gmail <billbinal...@gmail.com>
*Subject:* Re: Stus-List Where are we buying solar panels?
Ohms law supercedes marketing fluff and folklore. Renogy is not as
forthcoming as many of it's competitors. No, all panels are not sold
to the same standards as Renogy. Can a car manufacturer claim 30 miles
per gallon, based on mileage attained without the car's interior
installed, and tires inflated to 100 psi?
Bill Bina
_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
https://www.paypal.me/stumurray
All Contributions are greatly appreciated!
