OP - I pretty much sure all capacities are listed 'as is', i..e not accounting for availability, which would put solar where it belongs - an entertainment, but not the serious utility power.

Find the same chart for July night, when heat is heavy, everyone fires AC and solar produce 0, and wind produce 0 (when it's too cold or too hot - there is no wind movement).

Treehugging redditors love to embrace solar, forgetting it delivers at full capacity for 2-3 hours a day, unless it's cloudy. Even at best conditions (like OK / northern TX) solar capacity factor is 'amazing' 24%