Solar will continue without subsidies, it's cost per KWH is just too competitive. Solar and wind are currently the cheapest power you can generate. You can run solar during the day, If you over run put it in batteries, or a form of pumped storage, whatever. At night crank up the much more expensive to run Nat Gas peaking plants or coal units or whatever. In a perfect world we'd be running on more nuclear, but we're not perfect, and nuclear has issues. I'm not hopeful for the SMR reactors, either.