It is now 101°F (38°C) in San Bernardino, CA, with a light breeze blowing. The temperature is forecasted to remain at this point for the next two hours.
Current power demand on the California/CAISO grid is as of 13:00, 34,020 MW. It is now predicted to peak at 40,634 MW at around 17:45.
The so called "renewable portion" is shown in the following graphic downloaded at around 12:50:

Roughly half of the power in California, near noon, near the summer solstice, is coming from the combustion of dangerous natural gas. The waste product of this combustion, the dangerous fossil fuel waste carbon dioxide is being dumped directly into the planetary atmosphere, which is accumulating this waste at a record pace.
The total breakdown of so called "renewable energy" being generated in California, parts of which are experiencing extreme temperatures is as follows:

Solar output seems to have peaked at 11,370 MW at around 12:20 PDT.
It doesn't appear the wind is blowing all that strongly in California. Would the German word be Wendeflaute?
California's only nuclear plant, Diablo Canyon, near San Luis Obispo, is producing the same amount of power it was this morning, still more than all the wind turbines in California, and doing so in two small buildings.