PV upgrade decision
Right to the point: should I upgrade to a bigger panel or to an mppt controller? More info for those that take the time to read: I have a 100 watt, 21 ish volt panel and a pwm controller right ...
Forum Discussion
jayw900 wrote:
it does sound like I should just wait till I can do both
I would say - go ahead, if your old PWM has at least 50V input and current rating at least 12A.
9.5A - until you get MPPT - is a lot more than 5.5A of your 100W panel.
H4 connectors of this panel are compatible with more commonly used MC4. The only drawback is that monocrystalline panels are slightly less efficient than polycrystalline.
$1 per watt is not terribly high, but you can do better than that. A pair of these will give you 500W for less money. No minimum purchase. Solarworld is a better brand though. Shipping costs can be high in either scenario.
