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.
Except when it is not. The power company will need people to sign up to have their A/C turned off when there are clouds, or the power company will need spinning reserve to avoid blackouts.