Ok so given that we now have an excellent source of high wattage used panels from santan I have an idea for what I want to build. As much power as I can get for the lowest initial investment while still maintaining a moderate level of quality of components.
My plan:
Santan currently has used "blemished" 245 watt panels for $45. My local walmart has 29DC 12v lead acid batteries rated at 125AH for around $86. Searching around Amazon for a charge controller that will tolerate the higher input voltage of wiring the panels in series I found one for $90 although there may be cheaper options. And again on amazon I found a 1000/2000 watt pure sine wave inverter for $150.
Of course I'd need fusing and appropriate gauge wire for the install but this is the meat and potatoes of the whole proposal.
2 245W panels for a total of 490W
4 125AH marine deep cycle batteries in parallel (250AH without going below the 50% discharge)
Charge controller and inverter
I'd possibly opt for 6 of the batteries to lessen the puekert effect with high loads as I do intend to infrequently use a 700 watt microwave oven.
Without taking into account the cabling etc that means I could have almost a half a kilowatt on the roof for $674?! ($846 with 6 batteries)
Why isnt everyone doing this? In a perfect world under ideal conditions I'd be set for life with that much power.
Anything I've failed to mention?
My plan:
Santan currently has used "blemished" 245 watt panels for $45. My local walmart has 29DC 12v lead acid batteries rated at 125AH for around $86. Searching around Amazon for a charge controller that will tolerate the higher input voltage of wiring the panels in series I found one for $90 although there may be cheaper options. And again on amazon I found a 1000/2000 watt pure sine wave inverter for $150.
Of course I'd need fusing and appropriate gauge wire for the install but this is the meat and potatoes of the whole proposal.
2 245W panels for a total of 490W
4 125AH marine deep cycle batteries in parallel (250AH without going below the 50% discharge)
Charge controller and inverter
I'd possibly opt for 6 of the batteries to lessen the puekert effect with high loads as I do intend to infrequently use a 700 watt microwave oven.
Without taking into account the cabling etc that means I could have almost a half a kilowatt on the roof for $674?! ($846 with 6 batteries)
Why isnt everyone doing this? In a perfect world under ideal conditions I'd be set for life with that much power.
Anything I've failed to mention?