Derating 24v Solar Panels?
I'm considering running two 250w/24v poly panels; tracked/pointed during spring/fall, and flat during the summer; thru the Tracer 3215BN 30a mppt controller. I can also get 200w/24v mono panels, local...
Forum Discussion
MrWizard wrote:
That is not because of increased power due to heat
Increased power over rated power is not uncommon with New quality panels
a year from now they will probably be putting out rated power Not increase above rated
Understood... I'm just saying it would be better to run parallel/mppt, if and when the panels and controller are hot. Less bucking means higher efficiency, lower heat generation, and thus better overall performance. And yes, watts are watts, but why not work with what the panels have to offer? What the hot panel loses in voltage, can be partially recovered in the way of increased amps, by the tracker. This further reduces the amount of bucking required, for the same given (albeit reduced) power in and out... i.e; a much higher % of the power going into the cc is in the form of amps.
