Stats on wind and solar curtailment on the Texas grid - https://www.eia.gov/todayinenergy/detail.php?id=57100

"In 2022, the Electric Reliability Council of Texas (ERCOT), the grid manager for most of Texas, curtailed 5% of its total available wind generation and 9% of total available utility-scale solar generation. By 2035, however, we project wind curtailments in ERCOT could increase to 13% of total available wind generation, and solar curtailments could reach 19%."