The Big Roof
/I'm calling it. The Big Roof (for PV panels) is officially a style.
Besides being Big, I suppose the salient characteristic of the Big Roof is that it's detached from the main body of the building, as an independent form.
Additionally, Bohlin Cywinski Jackson has a number of "Big Roof" projects, such as the Frick Environmental Center (below), similar in essence but PV panels are not part of the roof design.