How do I file (Can I?) Solar PV system credit (installed in 2021) in this year 2022 TurboTax?

I forget to include my Solar Tax Credit (Energy-Saving Improvements) in last year tax return (2021), system was installed in 2021.

Can I file the credit in TurboTax this year (for tax year 2022) for that?

However, when I do that, TurboTax shows 2022 tax credit for 2022 installation and gives 30% credit. (where for 2021 installation it should be 26% only).

Can I make Turbotax this year (for tax-return 2022) to provide the correct credit (or specifying it was 2021 installation?)
Or, I must file amendment for 2021 tax-return for that Energy-Saving Improvement credit?

 

Thanks very much.

mk