It is probably cheaper or at least equivalent to utility scale, if we consider the cost of transmission and distribution, neither of which are needed with rooft

It is probably cheaper or at least equivalent to utility scale, if we consider the cost of transmission and distribution, neither of which are needed with rooftop. Of course, it is grid tied, but it uses existing power lines to the home without requiring any new lines to be installed. And the indestructible resiliency of distributed power production from tens of millions of rooftops is unparalleled.