A 6'x6' area is not going to get you much more than 5-600 Watts, even with the 20% efficiency stuff. Most of your really good value, ($/Watt), panels are in the 16% efficiency range which gets you about 250 Watt per panel, (typ.65"x39", I actually saw some brand new, Grade A, UL listed 14% eff. panels the other day for 21 cents a Watt.) With two standard sized panels you can series them and bring the power down at 60V nominal to an MPPT controller, (I like the Outback Flexmax 80), and feed your batteries 40+ amps at 12V nominal. You can save a few bucks with a Flexmax 60 but I'd just get the bigger one for a little more money. This would give you expansion capacity and won't work the controller as hard.
Capt. Carter
www.shipofimagination.com
On Wednesday, April 12, 2017 1:03 PM, "Picot Floyd picot_floyd@hotmail.com [electricboats]" <electricboats@yahoogroups.com> wrote:
Just picked up 2@24v 300W panels at sunelec.com in Miami for$ 99 each they are 1 meter by 2 meters. So just about 6'6"square
Sent from my iPhone
On Apr 12, 2017, at 11:53 AM, nov32394@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:
I am making a hard Bimini for my sailboat to mount two solar panels I think I will have about 6' x 6' to work with. I was hoping to get 800 watts of panels for that area. (2 panels). What is the best deal I am going to get on panels or are here any favorite panels controllers that you have?
Dan
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Posted by: Carter Quillen <twowheelinguy@yahoo.com>
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