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SOL and IROL Concepts

SOL and IROL Concepts. NERC Transmission Issues Subcommittee Meeting October 17, 2006. OLD-TF Agenda. Where Are We Today? What Do We Need To Do? What Do We Want From You? Your Opinions. Where We Are Today. RCWG: there’s a knowledge gap

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SOL and IROL Concepts

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  1. SOL and IROL Concepts NERC Transmission Issues Subcommittee Meeting October 17, 2006

  2. OLD-TF Agenda • Where Are We Today? • What Do We Need To Do? • What Do We Want From You? • Your Opinions

  3. Where We Are Today • RCWG: there’s a knowledge gap • Tried to align SOL and IROL Technical Document with the standards—doesn’t work • FERC assessment: • Lack of Next Day analysis • OK to exceed 30 minutes? • Use of TLR procedure • We always have to explain what we’re talking about

  4. The Situation • IROL and SOL is spread across numerous Standards and Requirements • Each standard may imply different concepts • Some tie SOLs to equipment limits • Some imply that an event happens first • FAC standards assume SOLs and IROLs exist in the “planning horizon?” • Does Table 1 also apply in the “operating horizon?”

  5. What We Need To Do Agree on 3 Basic Concepts! • SOLs and IROLs are operating states • Determined by “what if” studies • Must be relevant to the timeframe • L.T. Planning v. Ops Planning v. Real-time • Need to define “scope of coverage” • “Have I studied this?”

  6. Concept 1 – Operating States • What if…

  7. Concept 2 – Timeframe (“horizons”) • Long-term Planning • Operations Planning? • Real-time Operations?

  8. Concept 3 – “Scope of Coverage” We should not operate outside of Studied Conditions!

  9. Steps • Revise the Concept Paper • OC/PC Endorse Concepts in December • TIS/OLDTF/SPCTF/EIEIO work together on Concept Paper • OC/PC Review Concepts Paper in March • Then review the standards

  10. What’s Your Opinion?

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