I've noticed that effect, but I don't think the problem is on the installer side. A big part of the cost for them is the "soft costs" and a part of that is deal

I've noticed that effect, but I don't think the problem is on the installer side. A big part of the cost for them is the "soft costs" and a part of that is dealing with sometimes intransigent personnel at power companies. There are horror stories of them needing to pester the company for months to get the final approval to energize the system, and that adds significant cost. The solar companies would love to get rid of this problem. I don't think that I'd want someone that isn't a licensed roofer or electrician doing the installation work anyway.