This quote reveals the actual progress: '“Ten years ago we thought hitting even a 25 percent wind-penetration level would be extremely challenging, and any mor

This quote reveals the actual progress: '“Ten years ago we thought hitting even a 25 percent wind-penetration level would be extremely challenging, and any more than that would pose serious threats to reliability,” Bruce Row, Southwest Power Pool’s vice president of operations, said in the statement. “Now we have the ability to reliably manage greater than 50 percent. It’s not even our ceiling.”'