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Mike Mraz WECC-0068 Drafting Team Chairman

Mike Mraz WECC-0068 Drafting Team Chairman. Modification of BAL-004-WECC-1 April 26, 2012 Webex. Clarify, Conform, Coordinate. Addressed FERC Directives Clarify terms and time frames “large accumulations” “24 hours per calendar quarter” Modify risk factors to “medium” from “low”

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Mike Mraz WECC-0068 Drafting Team Chairman

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  1. Mike MrazWECC-0068 Drafting TeamChairman Modification of BAL-004-WECC-1 April 26, 2012 Webex

  2. Clarify, Conform, Coordinate • Addressed FERC Directives • Clarify terms and time frames • “large accumulations” • “24 hours per calendar quarter” • Modify risk factors to “medium” from “low” • Submit violation severity levels for requirements and sub-requirements without such

  3. Clarify, Conform, Coordinate • Conform to NERC Standards formats • Clear, measureable requirements • Specific measurements for each requirement • Follow each requirement with its’ measurement • VSL’s for each requirement • Coordinate Reporting and Control • Support a single ACE for both control and NERC reporting • “large accumulations” • “24 hours per calendar quarter” • Modify risk factors to “medium” from “low” • Submit violation severity levels for requirements and sub-requirements without such

  4. ACE w/ ATEC vs PII Mgmt • Previous Version of Standards • Different definition of ACE in BAL-004 • Apparent conflict with BAL-001 • NERC interpretation conflicted with BAL-004 R3 • BAL-004 had issues with clarity, process • New Version of Standards • ACE redefined in Regional Var. to BAL-001 • BAL-004 focused on PII management

  5. WECC Variance – BAL-001 • Redefines ACE to include ATEC • New ACE applies to all standards • CPS1/2 are calculated referring to new ACE • Reformulation breaks out ATEC term • Definition of ATEC term unchanged • Identifies limit Lmax applied to ATEC term • Identifies range of value for Lmax

  6. BAL-004 Revised • A monthly limit of 150% load or gen • ATEC out-of-service – 24 accumulated hrs • ATEC is methodology for PII payback • Remaining requirements rearranged to facilitate specifying direct measurements • 50 min window for ATEC term, PIIhourly/accum • 90 day recalc window on error detection • AGC control mode management • Month end adjustments – 100% PII

  7. Questions?

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