I dont think you see the full picture stan,
With a lot of RT solar, there is a huge reduction in consumer demand at midday, just at the same time as the grid Utility Solar also peaks, which if everything else,... (wind Nuclear, Gas, hydro etc..) ..are all operating “normally” ,..then there is a huge sutplus of generation to be redirected or curtailed .
Hydro can be shut down ,.but it is a very small % of generation anyway, and gas can be reduced as can wind..., Nuclear not so easy !
But anytime you shut down, or curtail, a generation facility of any sort, it becomes inefficient and makes it more expensive to operate...leading to increased electricity prices.
Diverting power to batteries is a nice theoretical solution, but they also cost money, and the reality is that enough storage to cater for a significant scale of grid curtailment,..is simply impractical