What’s happening right now is that renewables are being paired with an increasing number of gas power plants. Since gas power can ramp up so quickly they’re a g

What’s happening right now is that renewables are being paired with an increasing number of gas power plants. Since gas power can ramp up so quickly they’re a good match until storage can take over. So I think we already have the solution to the problem you’re describing: just pay to maintain a decent amount of the existing gas power plant. If they’re only there for backup, the impact on CO2 emissions will be negligible. You could even make the gas from renewable sources, since in this scenario the cost of the gas itself is negligible compared to cost of keeping the power plant operational. This is incidentally another reason (current) nuclear is a dead end going forward. They’re a bad match for renewables. What we need isn’t more base load, we need more peaker plants, load following plants, backup plants and energy storage. Nuclear isn’t a good solution in any of these categories.