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AESO current limits for Alberta-BC transfers

AESO current limits for Alberta-BC transfers. Jeff Palermo – KEMA/AESO. Overview. Regional planning and operating criteria AESO criteria What limits Alberta-BC exports. Planning and operating criteria. Criteria balance reliability and cost Criteria include Starting conditions

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AESO current limits for Alberta-BC transfers

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  1. AESO current limits forAlberta-BC transfers Jeff Palermo – KEMA/AESO

  2. Overview • Regional planning and operating criteria • AESO criteria • What limits Alberta-BC exports

  3. Planning and operating criteria • Criteria balance reliability and cost • Criteria include • Starting conditions • Test to be made (contingency) • Conditions defining success system performance • Where criteria come from • NERC – North America • WECC – western states and provinces • AESO – Alberta system

  4. AESO criteria The system is planned and operated so • Under normal conditions (n-0) voltages and loadings are normal [NERC] • No singe contingency (n-1) causes loss of load [NERC]All facilities below applicable rating [NERC] • Following any single contingency – prepare system for next contingency (n-1-1) [NERC] Within 20 minutes [WECC] • Multiple contingencies (n-2) may cause load loss but no cascading[NERC] All facilities below applicable rating [NERC] • Even extremely severe contingencies must not cause cascading from one system into another [NERC]

  5. This is TTC, but ATC will be 0since 65 MW is needed for TRM n-2 n-1-2 To the extent southern generation reduces SOK loading, exports can be increased Consider Base case TTCOPP 304, Table 4

  6. The limiting facilityBenalto – Red Deer 240 kV (900L)

  7. Reference documents Transmission Reliability Criteria (http://www.aeso.ca/rulesprocedures/8677.html) Export Capability (http://www.aeso.ca/gridoperations/8904.html)

  8. ¿¿Questions??

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