Operational Planning Jason Smith Operational Planning Goals What

Operational Planning Jason Smith

Operational Planning • Goals – What Ops Planning is not – What rules we operate under – Limitations – How Wind is incorporated in the plan 2

Operational Planning • What it is: – Next-to-last line of defense – Keep the lights on – Last-chance outage coordination/review § 60 -100 unique transmission outages every given day – Meets NERC requirement for coordination between RC, TOPs, and BAs 3

Current/Next Day Studies • Monday-Friday process with on-call weekend support and re-study as necessary • Collect forecasts for the time periods (current and next day) – Load – Outages (gen and trans) – Interchange – Wind Forecast – Gen Dispatch 4

Current/Next Day Studies • Cases are built, then contingency analysis performed – Constraints identified – new Temp flowgates created as necessary – Outage schedules adjusted as needed – Operating Guides developed that have not been identified already – Ideally, curtailments found to be necessary on “nonavailable” resources are identified and coordinated at least day-ahead 5

Operational Planning • What we can’t do: – Commit/decommit generation to avoid a curtailment unless reliability dictates such (IM changes this) – Deny outages to avoid a curtailment/re-dispatch unless reliability dictates such (voltage, capacity shortages, etc. ) – Deny or reschedule outages to a more opportune, “economic” time – Guarantee that a previously approved outage will still be feasible at the start time 6

Operational Planning • Governance – NERC Standards TOP-003, IRO-005, IRO-008 – SPP Criteria Section 5 – RC and member responsibilities – Appendix 7 – Data submission requirements – Appendix 12 – CROW Outage Submission Methodology – SPP Operating Reliability Working Group 7

Limitations • We don’t know what we don’t know – Load forecast beyond 7 days is generally a guess – Generation commitment is a guess (today) – No economic impact of outages is studied § • i. e. : Possible to redispatch and maintain reliability but at enormous cost “Early” approvals – Attempt to balance need for providing early approvals to submitters without later causing a real-time reliability concern 8

Wind Forecast in Ops Planning (cont. ) • Short-lead outages reviewed, taking wind forecast into account – Due to the non-dispatchable nature, precautions must be taken to avoid errors – Op Guides stating the necessity of a limitation/ curtailment are required for wind resources – independent of forecast production 10

Questions 11