I have a quote from Swell Energy for 2 Powerwalls but haven't contacted Tesla yet.
Here's the quote
Total amount: $23,320.80
Federal tax credit: $6,063.41
Other Rebates amount: $5,279.95
Net cost: $11,977.44
My System
I have a 46 panel system with Enphase IQ7+ Micro Inverters generating 15.69...