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Post by woodscustom on Sept 12, 2012 8:42:03 GMT -7
Okay Solar people. This is what I want to do.... Attach a solar Pannel to the top of an enclosed trailer, Wire it to a 27 Series RV Battery inside of the trailer, hook up an inverter 400 watt, and power a Laptop, charge cell phones, and other mild electrical AC needs. Will this Panel work? Description: The Sunforce 50033 15 Watt Solar Charging Kit Ideal for cabins, recreational vehicles, remote power, back-up power, and 12 Volt battery charging, this kit comes with everything you need to start producing up to 15 Watts/1A of clean, free power in all weather conditions. Made of durable ABS plastic and amorphous solar cells, the solar panel has a built-in blocking diode to protect battery discharge at night. The complete kit includes: a 15 Watt solar charging panel, pre- cut holes for easy installation, 4 stainless steel screws, battery clamps, CLA adapter, wire and a 7 Amp charge controller for battery overcharge protection. This unit has a maximum power output of 15 Watts; 1 Amp and a maximum temperature range of -40 to 176-degrees Fahrenheit. Made of durable ABS plastic and amorphous solar cells Weatherproof, durable solar panels can withstand impacts from hailstones travelling 50 miles-per-hour; amorphous solar panel works in all daylight conditions-even in the shade! Kit includes: one 15 Watt amorphous solar panel, a 7 Amp solar charge controller, 12 ft. of wire, CLA adapter and battery clamps for easy installation Watcha Think? WC
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Post by tjwilhelm on Sept 12, 2012 9:12:21 GMT -7
That will give you 15 watts under STC -- Standard Test Conditions. Under normal conditions, it will give you closer to 10 - 12 watts, partly due to ocassionally, slight overcast skies, and mostly due to the angle of incidence -- the angle at which the sun hits it. To get 15 watts, you need the perfectly clear sky of a Canadian Hi, and the sun needs to be exactly 90-degrees from the surface of the module.
Now, keep in mind you will only get an average of 3 to 4 peak sun hours per day. 10 watts x 4 hours = 40 watt-hours of energy per day (optimistically).
Your laptop probably draws 50 watts. This means you could only run your laptop for less than an hours, and there would be nothing left over for charging your cell phone.
I'd use, at least, a 75 watt solar-PV module.
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Post by woodscustom on Sept 12, 2012 9:59:00 GMT -7
Thanks TJ, I will get on it.
Thanks!
WC
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