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
On 12/1/2016 9:13 AM, Della Barba, Joe via CnC-List wrote:
That is ALL panels. NONE of them provide full power at 12 volts. If
you want to see 50 watts, you need a MPPT controller that is
essentially a DC-DC converter. Running my cheaper PWM controller I
never get the full 50.
Joe
Coquina
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of
*Josh Muckley via CnC-List
*Sent:* Thursday, December 01, 2016 09:06
*To:* C&C List <cnc-list@cnc-list.com>
*Cc:* Josh Muckley <muckl...@gmail.com>
*Subject:* Re: Stus-List Where are we buying solar panels?
Clearly renogy is providing nominal values for marketing purposes.
You can't fit all of the specs in the amazon headline.
Josh
On Dec 1, 2016 7:54 AM, "Bill Bina - gmail via CnC-List"
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
Renogy is not very honest about output. 50 watts at 12 volts is
fuzzy math for this panel, whose output is really almost 19 volts.
Output should be stated at the working output voltage. That is
more like a 30 watt panel when comparing to other brands whose
quality factor includes truth. :-)
Bill Bina
On 12/1/2016 8:15 AM, Della Barba, Joe via CnC-List wrote:
This is mine:
https://www.amazon.com/Renogy-Watts-Volts-Monocrystalline-Solar/dp/B00DVPPFDS/ref=sr_1_1?ie=UTF8&qid=1480598077&sr=8-1&keywords=50+watt+solar+panel
50 watts - $80. I have had no issues at all with it.
Joe
Coquina
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