Are you sure Cal?
I'm far from an expert on Solar Credits...but on my test tax return, a solar electric system carried over 3600, of a 12,000 system. (line 16 of the form 5695)
State credits might be different, but at least for the current Federal form, it shows a credit carry-forward. (as long as you fill out the form in the year of installation)
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
