Roll Up Solar Panels / Ogre MPPT Controller
I would LOVE to get 10-12 amperes of 12 volt grade charging for my new group 31 Lifeline. But I have a motor-scooter size toad, that forces me to the roll-up kind of solar panel, and woe is me, the...
Forum Discussion
pnichols wrote:BFL13 wrote:
I don't know why you want mono and MPPT for a small solar set.
Other than me figuring out how to budget for it, what's the downside to mono panels feeding a MPPT controller?
I thought a MPPT controller effectively gained you 20-30% more amp hours per day from a given panel area? Which if so, means you buy 20-30% less panels and have a 20-30% smaller sized portable panel setup to find storage room for. IAW, 100 watts of mono and MPPT will provide what it takes 120-130 watts of poly and PWM to equal.
I've tested mono and poly side by side. a 230w poly at sea level can do nearly as well as a 245w mono at 10,000 ft, not to mention the monos fall on their face with the lightest clouds. We see a lot of clouds so I'm selling my three mono panels as systems on CL. One is sold and will pay for a nice big set of polys. Not too sure about the 300w panels, somethings fishy there.
