The Duck Curve is from the point of view of the utility so it not only removes rooftop solar, it goes further and removes utility owned renewables, to focus on

The Duck Curve is from the point of view of the utility so it not only removes rooftop solar, it goes further and removes utility owned renewables, to focus on the problem of a) turning off fossil production at points during the day and b) dealing with the ramp in fossil demand in the evening.