so are you saying i shouldn't pay over $80 for a 100W panel? i have no idea where to find these prices. even on ebay, the cheapest i've found is $110.Try to pay less than $0.80 per watt. I have seen deals here and there for $0.56 per watt. It is interesting that in some countries, you can buy solar panels right in the hardware store. I have not scene any for sale where I live, but there may be some closer to the cities.
Another good source is from highway departments replacing panels on their solar powered road signs.
part of the alternative energy bourgeoisie over here...I think I severely overpaid for wattage, I buy retail, so I likely paid $1.40/watt at least.
how about for a 12v panel? i found one that i like better for $112 + free shipping.A 5A MPPT controller might be a wee bit small for that panel as you will be right on the edge at 18V and full output.
neat! too bad it's from canada. shipping costs $200, haha.Here's one from ALTe - https://www.altestore.com/store/sol...275-watt-mono-solar-panel-black-frame-p40524/ - $0.65/watt for 275W panel
We could gang up and attack the NCR at the Helios facility, they have a bunch of salvageable arrays...i've also heard of people buying broken panels and soldering them together. it doesn't seem too difficult. for a while, i was communicating with a guy who works for a solar company in CA who was selling broken panels (some of them the frames were just bent a bit) for pretty cheap. i wasn't sure if it was a scam tho. plus shipping was ridiculous.
If you're fingers are strong, you can get away without the tool thing, if it comes to it. I'm lazy and have dainty fingers.okay. i think i have my panel, inverter, and charge controller picked out. all for ~$150
where could i find "cheap" batteries? i think i'm looking for around 100amps.
then i need wires, fuses, and one of those tool things AnOldHope mentioned. can anyone think of anything else?
Yes, you are correct.can someone tell me what the voltage is for this panel?
i'm looking into wire gauge size and the specs say
Peak Circuit Voltage(Voc):22.82V
Max Power Voltage(Vmp):29.2V
does that mean it's 24V?
the title says 12V...
As long as the equipment you are using is rated for a 24v system, you are good. The batteries will probably float charge at 26+ volts anyway. Your inverter input depends on the battery bank voltage, not the panels, so you'll be fine there.thank you! does that have any affect on the charge controller, battery, and inverter i'm able to use?
also for mounting: do people use z brackets for vans? it is my understanding that a z bracket would mount it flush to the roof, which wouldn't allow airflow which would cause heat to interfere with the efficiency of the panels. is this correct? can i use L brackets?
///alllll the questionssss
GREAT thanks!As long as the equipment you are using is rated for a 24v system, you are good. The batteries will probably float charge at 26+ volts anyway. Your inverter input depends on the battery bank voltage, not the panels, so you'll be fine there.
As far as mounting, getting a little air gap of an inch or two should be good. I would use L brackets if I had them.
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