Did you ever get an answer to this question for a California system? We're also adding another/second system to our home. It's not an expansion of the existing system....it's a new system. The solar installer said we couldn't get the rebate....but that they could? Bizarre. Trying to find out if we'd get the 30% Federal Solar Tax Credit on the second system. We got some kind of credit 15 years ago when we put the first system on. Thanks!
