It's a fair point (why curtailment is in effect), and I think speaks to the fact that more granular and timely data is needed wrt all nodes and transmission segment within the system. Also a call for more batteries everywhere between generation and load.
With regards to transmission congestion, that is easily fixed with installing batteries at currently storageless renewable generation facilities (the batteries then charge with excess solar, and can continue to discharge after the sun sets or the wind dies down, maximizing transmission utilization temporally). The Inflation Reduction Act also enables those batteries to charge from utility side if needed, whereas before they could only charge from the renewable generation (AC vs DC coupling).
With regards to transmission congestion, that is easily fixed with installing batteries at currently storageless renewable generation facilities (the batteries then charge with excess solar, and can continue to discharge after the sun sets or the wind dies down, maximizing transmission utilization temporally). The Inflation Reduction Act also enables those batteries to charge from utility side if needed, whereas before they could only charge from the renewable generation (AC vs DC coupling).