But I don't quite follow your argument about renewables. Even without them you'd still have natural gas base load power.
Natural gas baseload would actually be cheaper (allthough dirtier). With peaking prices methane companies can charge whatever they want. Sometimes 50 cents a kWh. Sometimes more. That's where the price increase comes from.
If you were referring to CO2 emissions, yes natural gas has that, but less than coal.
490 g CO2 per kWh. In order to deep decarbonize we need our entire grid to be below 50, perferably below 30, We can't do that if we burn methane every single night.
Not sure why you tie natural gas to renewables
Because in the real world methane(natural gas) is tied to solar and wind. The sun doesn't always shine and the wind doesn't always blow.
Nuclear fission is the most expensive option on the table.
Not long term, and not for the consumer either. Renewables paired with methane is significantly more expensive for the consumer than nuclear.
Extracting uranium to react isn't free or very clean either.
The amount of materials required for nuclear is significantly less than for any other energy sources. See energy density.
Demand from A.I. companies is significant. Also renewables are intermittent. So they are paired with peaking methane which is extremely expensive and dirty. Having to rely on peaking electricity every single night drives up electricity costs significantly.
If we want to lower pollution and costs we need to build new nuclear energy. Yes, nuclear. The high upfront cost of a nuclear power plant is more than made up for in the long run with low operation costs, low fuel costs, and an extremely long lifetime(80+years). Think of it as an investment in the future.
Also with nuclear plants increasingly having to shut down due to cooling problems caused by high outdoor temperatures,
Yeah, that's not a real problem. You are citing a couple of plants that shutdown for a week because the water was to warm to release back into the river. It has nothing to do with cooling the reactors. They didn't want to harm the local wildlife. The solution is simple-build a cooling tower. Or even simpler--dig a ditch, fill ditch with water, let water cool, then release cooled water back into the river.
Nuclear works with zero hitches in Arizona. Maybe google Palo Verde Nuclear Power Plant before you talk out of your ass. If it can work there, it can work anywhere.
We don't have a national grid DF. Building a national super grid would be more expensive and more time consuming than building a nuclear baseload. Papers similar to this rely on magical thinking to overcome real-world problems. We can't even get texas to connect their grid with other states, and you think we can build a national super grid?
And we need at least 12 hours to get through a windless night.
Time is an illusion perpetrated by the manufacturers of space.