This is a curious post for your author. I recently completed my own Solar + Storage Project and posted a three-part series. However, my project was unusual due to the we needed a solar-roof design. In other words, no separate PV Panels allowed, and the PV needed to be attractively integrated into the roof. Thus, a new solar roof was required. “Solar roof” greatly limited the number of bidders. Our project went well and we are both very pleased with the results, but our project is atypical. Going forward my solar project will be typical (for California) in that I specified a battery energy storage system, and most systems in California are evolving to include these due to a recent PUC Ruling.
I felt that my readers might be better served if I expanded my criteria for this paper to include designs that did use conventional PV Panels, So I started to research the viability of doing this paper. I included the firm(s) that implemented my project, but I also included other large firms that do business in much of California (and in a few cases, beyond), and have broad offerings, that at least include PV and battery energy storage systems (BESS), and most also offer reroofing (solar or conventional).