From RTO Insider:

Beth Garza, a senior fellow with R Street Institute and former director of ERCOT’s Independent Market Monitor, sided with Clark.

“I believe that ancillary services costs are best assigned directly to load,” she said. “ERCOT should determine the quantity of ancillary services required to ensure reliable operation for all loads, given all generation. By keeping the allocation simple and direct, loads will pay the lowest cost for those services rather than a generator’s risk adjusted approximation of those costs.”

Garza noted that ERCOT’s ancillary services requirements have decreased overall, despite the large influx of intermittent generation.

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