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This overview presents the WECC Reliability-Based Control Field Trial (FT) plan covering new document updates, roles, and responsibilities, readiness criteria for Electric Management Systems (EMS), and data reporting procedures. The trial runs from March 1, 2010, to February 28, 2011, and targets all Balancing Authorities (BAs) managing over 500 MW. It emphasizes the need for compliance with NERC standards while allowing operators to modify EMS controls. Key changes from previous versions are highlighted, including data collection and reporting enhancements to address WECC concerns.
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Overview • Basic plan for the FT • FT document – what’s new/different • Roles & responsibilities • Readiness - EMS changes? • Data reporting • Evaluation • Questions
Who, what, when, where, how, why • All of us – BAs, RC, PWG, SDT • Monitor, act, collect, report, analyze, summarize • March 1, 2010 – February 28, 2011 • Real-time & Historical • EMS Changes? Monitoring Tools? • Support the SDT and for “our” benefit
FT Document – Major Changes • Version 4 vs Version 8 • Potentially obfuscating changes have been addressed\ • ATEC is now a standard • ADI references have been removed • References to AGC status, suspension of control, response to BAAL violations have been revised • Revised Timeline – start date & milestones • Evaluation criteria expanded to monitor all paths • Loosened verification of BA operator readiness • Additional data collection/reporting to address WECC concerns
Who-What • All BAs with Peak Load or Max Gen > 500 MW must participate • All BAs must be able to meet the data collection reporting requirements in Appendix A. • ACE, Frequency related clock-minute values • Count minutes in different violation categories • All BAs will control to meet BAL-001 and BAL-007 • While CPS2 is waived, it must still be calculated • BAL-007 – a frequency based ACEclock-min limit (BAAL) with a 30 min time limit • BAs must still continue to calculate and report all NERC required quantities.
How-Why • No EMS modifications are required and BAs may “loosen” control within limits • “Loosen” control will differ depending on software • BAs can modify their EMS – if they wish • BAs can self-implement the BAAL calculation and monitoring of ACE or use tools provided by the SDT • The SDT tools are for monitoring only and reference the ACE history (e.g. a PI database) • BAs verify to PWG that Operators are trained in RBC • Support the SDT in assessment of RBC • Consider in WECC control metrics that reflect VGS
When - timeline • August 2009 – Workshop • September 2009 • PWG posts updated FT document • BAs begin preparing for FT • October 2009 • OC approves the FT plan and document • OC posts the FT plan for Board approval • December 2009 • Board approves FT plan
When – timeline continued • January 2010 • PWG conducts final workshop or conference call (TBD) • RC certify readiness • February 2010 • BAs annual update of frequency bias terms • BAs certify readiness • BAs forward 2 weeks of FT data to PWG/WECC • RC certifies all BAs are providing requisite data • PWG forwards list of participating BAs to SDT for CPS2 compliance waiver • PWG announces commencement of FT • March 2010 • FT begins 03/01/2010 00:00:00 CST • 3/15/2010 – BAs submit two weeks of data
When – timeline continued • April 2010 – March 2011 • BAs submit data • BAs note and describe circumstances where ACE exceed BAAL for more than 10 or 20 consecutive clock-minutes • PWG / SDT conference call and review of BA data • Open conference call – BAs may participate • Consider enhancements/improvements to the FT
