Want To Purchase Two More Solar Panels
Like the subject line states, I'd like to install 2 more solar panels on the roof. I have 2 Kyocera panels already, purchased several years ago, and I've very happy with them. However, I can no lon...
Forum Discussion
Hi,
How many amps is your existing panels and controller? Do you plan on hooking up the two new ones to the same controller?
If you are going with another controller, then finding the exact 'open circuit voltage' is not required. Panel prices have dropped dramatically in the past couple of years. What I spent $1,500 on in 94 - 99 is now replaceable for only about $800!
SunElec.com I would recommend a pair of 140 watt solar panels, last I heard they cost $229 there. A 20 amp PWM controller is really cheap now, perhaps $35 more? Some UV rated direct burial wire from Home Depot (the grey stuff, sold in #10 romex in 25 or 50' lengths).
For mounts, I made them out of 6" long 2" angle aluminum (home depot) with 3 holes 3/16" for #10 screws into the roof, and 5/16" hole for a 1/4" bolt into the panels. Some rubber roof sealant, and you are ready.
I ran all my wires down the refrigerator roof vent area, to the controller, then to the batteries.
Good luck,
Fred.
How many amps is your existing panels and controller? Do you plan on hooking up the two new ones to the same controller?
If you are going with another controller, then finding the exact 'open circuit voltage' is not required. Panel prices have dropped dramatically in the past couple of years. What I spent $1,500 on in 94 - 99 is now replaceable for only about $800!
SunElec.com I would recommend a pair of 140 watt solar panels, last I heard they cost $229 there. A 20 amp PWM controller is really cheap now, perhaps $35 more? Some UV rated direct burial wire from Home Depot (the grey stuff, sold in #10 romex in 25 or 50' lengths).
For mounts, I made them out of 6" long 2" angle aluminum (home depot) with 3 holes 3/16" for #10 screws into the roof, and 5/16" hole for a 1/4" bolt into the panels. Some rubber roof sealant, and you are ready.
I ran all my wires down the refrigerator roof vent area, to the controller, then to the batteries.
Good luck,
Fred.
