More renewables is the answer. We need to build so much that power becomes almost free (already the case in the summer at high noon, see [1]).
[1] https://energy-charts.info/charts/price_spot_market/chart.ht...
Terraform is working on that - burstable synthetic methane generation using cheap catalysts that you can afford to idle, only generating methane when electricity is cheap.
I think we should solve the "It's cloudy sometimes" problem with state built, extreme oversupply. Also giant solar farms in the southwest and large HVDC power lines to send that everywhere.
There's zero reason why "We make more power than we use most of the time" ever has to be a "problem". I think we should have so much unused power that it makes sense to suck CO2 out of the air to make fuel and chemical feedstocks. Air capture at that scale would be an insane engineering and manufacturing problem though.
You probably shouldn't vote for me though. I have dumber ideas too. But the "Lets do Solarpunk for real" one is probably not harmful to anyone. Except for a bunch of rich families in Texas.