Do I need a special form when filing my taxes? My wife looked briefly and didn’t see a spot to add the Powerwall.
2019 Federal Form 5695
Google is your friend.
Check for solar tax credit. Battery is part of that form.
Important safety tip: Remember that you must have some sort of tax liability to absorb/use the credit. If you planned your work, and worked your plan to be debt free at retirement like I am, this tax credit is worthless. I rolled mine from 2018 to 2019 and because I didn't go to Vegas or a local Casino and win bigly, I have nothing to claim and again, cannot use the 'credit.'
It's one thing to be "debt free", but it sounds like you are "taxable income" free, or at least you don't have enough taxable income to generate a tax liability more than the credit. If some of your wealth is in a traditional IRA or 401k, you could do a Roth conversion of an amount that generates a tax liability matching the credit. That way, the conversion would essentially be untaxed.