

I admit, I’m not innocent in that regard, that’s why I used the word “we”, but I don’t want to be accused of mansplaining basic English to you as well, so I’ll leave it at that. ;)
But I’m kinda hard pressed, to not sound like I’m trying to attack you personally, when you keep insisting how basic some of that stuff is. I don’t know how I’m supposed to point out mistakes you’re making in a way that doesn’t feel like an attack under those circumstances. Really, any correction I’m making will seem like I’m assuming you don’t understand basic concepts.
Nonetheless, I’m gonna keep doing that, because, frankly, I think you’re making mistakes there. Your idea, that the analysis of the data is so basic, that pointing to the capacity factor proves your argument is one of them.
The capacity factor for nuclear power plants is so high, because they run almost all the time at or close to nameplate power. And yes, that means they have to be reliable to get to that number. But the inverse is not also true. A lower capacity factor doesn’t necessarily indicate that an energy source is unreliable. It just says, that it’s not running all the time at its specified peak power.
A brief (hypothetical) thought experiment:
if you had an NPP that could easily and quickly adjust its power output and you used it at full power to get through those windless winter nights, but tuned it down during the day or shut it off completely on summer days, what would that mean for its average capacity factor?
Of course, it would decrease, because you wouldn’t run it near peak output all the time anymore.
Does that mean it’s suddenly an unreliable energy source? Of course not.
That’s also what I meant by saying that you needed energy sources with a lower capacity factor to complement a solar/wind heavy system. I admit, that was horrible wording on my part, because it confused cause and effect.
What I meant is, it’s not the low capacity factor that makes a generator suitable to fulfill that role, but any generator taking that role, is inevitably going to have a lower capacity factor, no matter how reliable.
If you look at the capacity factors for natural gas power plants using gas turbines, which you can find here: https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=table_6_07_a
You can see, that they are horribly low. That’s not because they are super unreliable, but because they are rarely being used at their rated power. The best thing about gas turbines is that their power output can quickly be adjusted, and that’s how they’re being employed.
As to the capacity factor of solar/wind power plants: Of course, it’s going to be lower. Naturally, they can’t run at their peak power output all the time, but nobody expects them to do that anyway. A system could only be called unreliable, if it didn’t deliever, what was expected of it. Just pointing to the capacity factor is simply not a good indicator of reliabilty, or rather unreliability, as should be clear by the examples given above.
And that’s why I think that the diagram you provided, doesn’t show, what you wanted it to show.

They’re much safer in a garage anyway.