I will not be surprised at some point in the future to learn that there were multiple benefits as a result of these recent changes in the solar program. Simplified application process and quicker activations ? Improved efficiency with Tesla inverters ? Easier site support with all TE products including pv? Easier to stage a stealthily growing network of residential and business power generation and integrated backup that could be consolidated and activated as Virtual Power plants when Tesla gets a regional Utility license in an area, or packaged and sold to existing Utilities that buy MegaPack/AutoBidder ?
Elon mentioned that a 100 mile x 100 mile plot of land covered in pv would be enough to power the entire US. Distributing such a power plant across the county on business and residential roof-tops is Elon's end-run around the existing grid/transmission paradigm, imo.