I just had another solar installer come by. Like usual, they refused to show me a fucking itemized bill of the total install cost. The math they presented was utter horseshit. But when I read between the lines, I was able to come out with a $3.50/W installed price (6KW system for ~$21k) and that let me do some calculations. In their idealized, guaranteed, projections the system would pay for itself after 7 or so years. Not the worst, tbh.
Anyways I think $3.50/W installed is… high. The panels are now bought in bulk for less than $0.3/W. Of course there’s the interconnection, inverters, wiring, panel mounts and brackets, labor, and profit.
But on my home with a projected 6KW system that comes to $1.8k in panels leaving $20k for the rest. I’ve got a feeling that will come down by necessity once the tax credit goes away.
Does anyone work for an installer? Where is all of that money going?
Looked up the invoice for you (rounded the numbers for simplicity):
Panels (8x) including micro inverters, all of the mounting hardware, cables etc. - $2500 Hardware for upgrading the electrical panel - $400 Labour, various items, delivery costs - $600
IIRC it was 3 dudes for about half a day. Two dudes for the panels and an electrician that checked what the panel dudes did on the roof and upgraded my electrical panel.
I felt like it was a pretty good deal. Panels could have been cheaper, but I wanted the full black ones. And a single inverter would have been cheaper than micro inverters, but the panels are partly shaded a lot of the time due to a tree. Calculations I did showed the extra price of the micro inverters would be worth it to get the most out of the panels.