I should have been more clear. I only used Enphase for their calculator because it was really easy to use. The kits are from a different site and they are string inverter not micro. Solar edge kit 5.8W. How ever i did screw up the selection for the larger system. I accidently chose the wrong system that had batteries in it. So i found a Sunny Boy 7kW Kit for $11.3k.
Our kits provide an easy way to get started with your grid-tie solar system. Grid-tie solar allows you the ability to generate electricity for your home while also being able to route any excess power back to the utility company for a profit.
www.solar-electric.com
"Net 0"
What would this system cost me DIY? about $11.3K for a 7kw kit + hardware, lets say $13k total Thats $13000/$100= 130 mo or 10.9 yrs ROI.
I know that i can still knock off a few grand if i price shop. Lets test
nwdiver's cost for a 6.7 kw system. Not sure if this includes tax credits, power disconnect switch and mounting brackets, ......
6.7kw DIY sourced + hardware, lets say $6k total Thats $6000/$100= 60 mo or 5 yrs ROI.
That's STILL if i get penny for penny on my generation to sell back to e-company. Its probably more like .06/kWH.
That's more palatable but i would assume that i would need to oversize my system by another kW or 2. I had this all figured out 2 yrs ago in a spread sheet. I just have to find it again.