ERCOT credits new tool for wind records


The Electric Reliability Council of Texas (ERCOT) hit new wind records both Tuesday and Wednesday, exceeding the previous records by nearly 200 MW each day. At the time of Wednesday's record, wind was supplying 22 percent of the total system load. Coastal wind farms supplied 1,018 MW of the new record, along with 6,581 MW from the west and north zones.   

March is typically a high wind month for ERCOT, but the new records are also due in part to a new transmission analysis tool. ERCOT began using the tool this week to calculate day-ahead and real-time west to north stability limits, allowing them to move more wind energy from the west zone. The transient security assessment tool improves the accuracy of transmission limits by improving the ability to establish the limits with the most current conditions available.

"In the past, we've had some slack built into some of our transmission limits because these limits had to be set well in advance," said Kent Saathoff, ERCOT's Director of Grid Operations and System Planning. "The new tool runs an analysis on real-time conditions every 30 minutes so it gives us a more fine-tuned analysis." 

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