Solar component(s) help needed
I keep bouncing back and forth on what to get and need someone to point me in the right direction ... please. I have a new TT toy hauler. All LED lights, don't want to run 120AC stuff. Have (2) 6v ...
Forum Discussion
I wouldn't want to deal with a portable. Heavy, easily topples over in wind, a pain to set up every time, a pain connecting to battery temporarily with crocodiles. Anything can break, short, disconnect at any of these stages any time.
If shade is really deep, you have no choice but go portable, with a looong cable to bring it to sun. I would get max 100W. Bigger portable would be too much trouble.
Tilted 100W panel on a sunny day will harvest ~20-25 AH. This is enough to run a thermostat of propane fridge, few LED lights, occasionally pump and CD/radio. Nothing more. You might be able to run a furnace before bed time if it's a short stay. No microwave, toaster, satellite TV and other luxuries. To me this isn't a big deal, I would rather cook on propane for a day or two than deal with heavy and loud generator. On a cloudy/rainy day 100W will get you nothing.
Partial shade will get you a partial charge. When it's mostly shade, PWM vs MPPT won't make much difference, it will be all poor.
I agree with others that PWM/MPPT choice depends on total array wattage. Under 300W get PWM, over 300W get MPPT.
If shade is really deep, you have no choice but go portable, with a looong cable to bring it to sun. I would get max 100W. Bigger portable would be too much trouble.
Tilted 100W panel on a sunny day will harvest ~20-25 AH. This is enough to run a thermostat of propane fridge, few LED lights, occasionally pump and CD/radio. Nothing more. You might be able to run a furnace before bed time if it's a short stay. No microwave, toaster, satellite TV and other luxuries. To me this isn't a big deal, I would rather cook on propane for a day or two than deal with heavy and loud generator. On a cloudy/rainy day 100W will get you nothing.
Partial shade will get you a partial charge. When it's mostly shade, PWM vs MPPT won't make much difference, it will be all poor.
I agree with others that PWM/MPPT choice depends on total array wattage. Under 300W get PWM, over 300W get MPPT.
