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May 2012 Generation Resource Energy and Regulation Deployment Performance

May 2012 Generation Resource Energy and Regulation Deployment Performance. QMWG 6/8/2012. NON-IRR GREDP – Energy Deployments. Resources below 85% threshold. IRR GREDP. Resources below 95% threshold. March IRR Failures. March IRR Failures (continued). GREDP Scenario Analysis.

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May 2012 Generation Resource Energy and Regulation Deployment Performance

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  1. May 2012 Generation Resource Energy and Regulation Deployment Performance QMWG 6/8/2012

  2. NON-IRR GREDP – Energy Deployments Resources below 85% threshold

  3. IRR GREDP Resources below 95% threshold

  4. March IRR Failures

  5. March IRR Failures (continued)

  6. GREDP Scenario Analysis

  7. Manual HDL/LDL Override Summary QMWG

  8. Daily Summary Graph • For this analysis, we captured unique HDL/LDL overrides • An override is considered unique if that same Resource did not have an override within the last 10 minutes • There were 8 total unique overrides in May • As compared to 1 in April and 27 in March

  9. Daily Summary Table

  10. Reasons for Manual HDL/LDL Overrides • Outages required overrides as a result of local voltage issues • Also had voltage issues resulting from a severe storm • The following constraint had SCED executions counted towards irresolvability: • XMOS58 : ODNTH_FMR1 • This constraint has not met the criteria for resetting the shadow price cap

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