In California, USA, in October of 2022 I signed a contract, paid a deposit, and began making payments (10 year term) on solar panels for an investment property
The unusually stormy season has delayed installation of those panels until April 2023.
In which year do I report the solar credit?
When I contracted/paid for it in 2022? Or when it actually enters service on the property in 2023? Or perhaps less likely, when I finish paying it off in 2032?
Note: you may see my other, similar question about the roof. I split them into separate questions because I suspect the answers are different and future searches may benefit from finding them independently.