You are listing ages old US installations.
No idea why they are such expensive.
New installations in Germany are cheaper than nuclear since years. And Germany is not a particular good country for either wind (except the coast) or solar.
Bringing retarded grid concepts etc as arguments makes no sense.
Around here it's drive the "peak energy" costs from 0.07kWh to 0.18kWh in less then a decade.
Wind and solar are used for base load, not for peak energy or balancing power. You probably mean something else. If the energy prices during peak times changed, you most certainly don't know why. The most likely reason: your peak demand exploded and there were now new load following plants built. The new "renewables" now cover for some base load and the old peak plants struggle to fulfill the new peak demand. Go figure ... can't be so hard.
And on top of that: peak prices explode so that people who care about the price can throttle their demand. Only idiots still consume absurd amounts of power around peak time when they could avoid it (and that is damn easy, even in backyard countries like the USA)