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Fast Responding Regulation Service (FRRS) Pilot Update

Fast Responding Regulation Service (FRRS) Pilot Update. July 2, 2013 TAC meeting. OUTLINE. Summary of Findings (based on 3 months of data) FRRS Up and FRRS Down performance FRRS Pilot Resource’s ability to respond to sudden large frequency deviation

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Fast Responding Regulation Service (FRRS) Pilot Update

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  1. Fast Responding Regulation Service (FRRS) Pilot Update July 2, 2013 TAC meeting

  2. OUTLINE Summary of Findings (based on 3 months of data) FRRS Up and FRRS Down performance FRRS Pilot Resource’s ability to respond to sudden large frequency deviation ERCOT recommendation for the FRRS Pilot for the Board of Directors July 16, 2013 meeting TAC

  3. Summary of Findings Based on the first three months of observations; • FRRS improves ERCOT’s ability to arrest frequency decay during unit trips. • FRRS Pilot Resources generally followed ERCOT FRRS deploymentsand responded automatically using local frequency detecting techniques. • When deployed, FRRS reduces the rate of change of frequency and regulation deployed to conventional Resources. • Observed lower quantities offered for FRRS-down and an overall lower performance for FRRS-down. TAC

  4. FRRS Performance TAC

  5. 05-22-2013 Frequency event TAC

  6. Items to Consider in Recommending an Extension • ERCOT needs more time to further investigate different deployment approaches and gather more information on the value of the service. • More time is needed for stakeholder discussion about the appropriate operational and market approach. • Several Resources with other technologies have expressed an interest in participating in the pilot, and this information could be valuable in evaluating the benefits of FRRS. • The cost of a six-month extension is estimated to be $900,000. TAC

  7. ERCOT Recommendation for FRRS Pilot Recommendation: Extend the Pilot project as currently constructed until 2-28-14. Extension requires action by BOD and their approval of minor revisions to the Governing Document [The pilot will end earlier if an NPRR is approved and implemented before 2-28-14.] Note that absent any action to extend the pilot at the July BOD meeting, the FRRS Pilot project is scheduled to end on Operating Day 8-23-13. TAC

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