1. A cost breakdown would be best. I don't know how else to estimate it except using the average cost in your area and that may not be accurate if they offered a package deal or something.
2. No, you can still qualify for the EV charger credit. You'll need the cost of the EV chargers separated and you get a credit for 30% of that (up to $1000).
3. You are correct that the subpanel doesn't qualify for either the solar credit or the home energy credit.
@v8ramair
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