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WG FBA Status Report Jerzy Dudzik IG Meeting, 12 th June 2007

WG FBA Status Report Jerzy Dudzik IG Meeting, 12 th June 2007. Content. New version of the Concept After Test Report on D process Y/M calculation test Farther steps. New version of the Concept. Present status: - D processes verified by tests

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WG FBA Status Report Jerzy Dudzik IG Meeting, 12 th June 2007

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  1. WG FBA Status ReportJerzy DudzikIG Meeting, 12th June 2007

  2. Content • New version of the Concept • After Test Report on D process • Y/M calculation test • Farther steps

  3. New version of the Concept • Present status: - D processes verified by tests - Y/M processes to be verified by tests • Important statement: Implementation of D process must be associated with the consistent approach adopted for Y/M processes! • Lack of final approval by HLM

  4. After Test Report on D process • 6 cases calculated (peak hours, out of peak hours) • Data sets of ABC and PTDF ready capacity allocation tests • Main findings: - negative ABC values mainly as a result of NTC approach adopted for Y/M allocation (to be investigated) - big influence of individual TSO approach to the reliability margins on the ABC values

  5. Trial Test - 2007-04-25, 03:30 Corrected

  6. TSO approach to reliability margins • Reliability Margins evaluation is a responsibility of individual TSO • According to the agreed Concept the reliability margins should reflect the „unknown factors”: - FRM (the accuracy of model adopted for TBC calculation) - BFRM (the deviation of base flow due too external phenomena's) • RMs are the main elements of TSO technical risk management (higher RMs lower risk of n-1 violation in the TSO grid) taking into account that: availability of redispatching is not guaranteed! • Individual TSO strategy on RM must be explained (transparency)

  7. Y/M calculation test • New idea proposed by ELES: - introducing „combined border connections” CBC (for more borders) - evaluation of the effectiveness of CBC approach (by ELES with the support of other TSOs) - new problem: individual TSO responsibility vs. „group of TSOs” responsibility (one ABC value for more than one border) • Worst cases for each border to be prepared by individual TSO • More complicated Y/M allocation process must be accepted

  8. Further steps • To continue work on D process development (additional investigations, external consultants) • To finish Y/M test calculations (WG FBA till the end of September) • To make a final decision on Y/M/D approach for 2008 (HLM till the October)

  9. Thank you for attention

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