Yes, you claim in when you put into service.
I kept a spreadsheet of purchases, labor, parts, etc.
My accountant asked for the interconnect agreement from the utility, and he was good with it.
That being said, I do not believe they require anything to file, but you would want to have this stuff in place if questions were asked.
I kept a spreadsheet of purchases, labor, parts, etc.
My accountant asked for the interconnect agreement from the utility, and he was good with it.
That being said, I do not believe they require anything to file, but you would want to have this stuff in place if questions were asked.