Opinions on 100W Solar System
I've done my reading and research and think I have a system figured out. Limited space on the roof of my 815 so plan on going with a single panel. Maximum space available is 52 x 25, but optimum...
Forum Discussion
Jim, thanks for all the info.
Looking at these two panels, it looks like they would be equal if using a PWM controller. However, because of the higher Vmpp of the renogy-store panel, it would out perform the AmSolar panel when using a MPPT controller. Am I looking at the numbers right?
The size of the renogy panel I can probably handle but still need to measure.
Next question, is how much ventilation is needed for an MPPT controller when connected to a single 100W panel? Does a PWM create less heat? I only have two options two mount the controller.
First is in the area under the bathroom which would require a 21' run from the panel to the MPPT but only a 1' run to the battery.
Second is in the area under the kitchen sink which would require a 13' run from the panel and an 8' run to the battery.
Again, thanks for all the advice. Think I owe you a six pack.
Looking at these two panels, it looks like they would be equal if using a PWM controller. However, because of the higher Vmpp of the renogy-store panel, it would out perform the AmSolar panel when using a MPPT controller. Am I looking at the numbers right?
AM Solar wrote:
Pmax = 100 watts @ maximum power
Vmpp = 17.7 volts @ maximum power point
Impp = 5.7 amps @ maximum power point
Voc = 21.2 volts @ open circuit
Isc = 6.10 amps @ short circuit
Length = 40.8" (1037mm)
Width = 20.7" (527mm)
Depth = 1.38" (35mm)
Weight = 14.5 lbs. (6.6kg)
Renogy-store wrote:
Output Cables: 4.0 mm2 (0.006 in2), 800mm (31.5 in) Connectors: MC4 Connectors
Maximum Power: 100W Maximum System Voltage: 600V DC (UL)
Optimum Operating Voltage (Vmp): 18.9V Open-Circuit Voltage (Voc): 22.5V
Optimum Operating Current (Imp): 5.29A Short-Circuit Current (Isc): 5.75A
Weight: 16.5lbs Dimensions: 47 X 21.3 X 1.4 In
The size of the renogy panel I can probably handle but still need to measure.
Next question, is how much ventilation is needed for an MPPT controller when connected to a single 100W panel? Does a PWM create less heat? I only have two options two mount the controller.
First is in the area under the bathroom which would require a 21' run from the panel to the MPPT but only a 1' run to the battery.
Second is in the area under the kitchen sink which would require a 13' run from the panel and an 8' run to the battery.
Again, thanks for all the advice. Think I owe you a six pack.
