Solar can be ramped down pretty trivially, we just don't currently because we want to use solar in preference to other power sources for environmental reasons and the contractual and communications structures to do it aren't there yet.
Sorry you've completely lost me here. I thought the problem was mainly that we haven't figured out a way to control the sun or the clouds (soon though, soon...)
Parent said ramping DOWN, which is trivial regardless of weather. Ramping solar UP at night or during cloud coverage is indeed a much more difficult problem :)
I agree with what you said, and I would have added: but a less important problem because 1) there are batteries and other forms of storage and 2) consumption is lower at night.
