I wonder how much solar power solar cells put out on a cloudy day when sleet and freezing rain are falling on them an coating all the surfaces in 1/4 inch of ice; such as today here in Wash DC?
It is difficult to tell. That is why solar is expensive. You have to have multiple inverters to negate the effects of clouding.
Not much, but tomorrow when it is partly cloudy and in the 40’s it will be a lot better. DC and other cities need the most electric power during air conditioning season, and DC is generally quite sunny then. We will always need a mix of power sources, but neglecting to make use of free sunshine and wind is not logical. This will be an interesting test of grid changeover capacity.