u/FancyPantsFIRE — reddlx

I got a quote from a local solar installer, looking for feedback.

12.15 kW DC (30x Runergy 405W all-black panels)
Enphase IQ8+ micro inverters
30 kWh storage (3x Enphase IQ10C gen 4 batteries)

This is basically cramming as many panels as will fit on the southern exposures of my house and garage roofs. They are estimating ~15,600 kWh annual production.

Price:

Gross Total: $68.3k
Solar-Only Portion: $34.7k ($2.86/Watt)
Battery-Only Portion: $33.6k ($1,120/kW)
Net After Incentives: $36.7k

Incentives are a combo of SREC ($19k) and ComEd ($12.6k).

About my house:

~16,500 kWh annual consumption
Multi-zone HVAC with two condenser units
A level 2 EV charger (30 amp)
No mature trees left on my property or our southern neighbors, but I’m still paranoid about shading
Roof is in good shape but over ten years old (asphalt shingles)
Have a solar farm lease with a 20% discount on the supply side which I’ll have to give up to go rooftop

Roof is a clear thing to figure out, seems best to redo prior to solar.

Questions:

The installer quoted IQ8+, should I worry about pushing for IQ8M re:clipping?
Should I worry about specific panels? (eg chasing N-type)
30kWh is a ton of battery, installer recommends the 3 battery setup for multi-zone HVAC, is this sane?
What else should I consider? I’m not a solar pro so I’d welcome feedback

Setting any roofing costs aside, I think break even would be 8-9 years.