Independent Experts Findings Ed Ernst, John Meyer, Brian Silverstein - PowerPoint PPT Presentation

Independent Experts’ Findings Ed Ernst, John Meyer, Brian Silverstein and Bill Thompson, Independent Experts Valerie Agnew, NERC Director of Standards Development August 15, 2013

Key Findings - Gaps • Four high-priority gaps identified  Outage coordination  Governor frequency response  Situational awareness  Clear requirements for three-part communication • Three medium-priority gaps identified  Verification of accuracy of planning models  Short circuit/fault duty models  Infrastructure maintenance • Additional gaps identified at the requirement level 2 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Four high-priority gaps identified  Outage coordination  Governor frequency respons e  Situational awareness framework (May be addressed in Project 2009-02) o EMS RTCA models, etc.  Clear requirements for three-part communication (Presented to Board) • Three medium-priority gaps identified  Verification of accuracy of planning models (Addressed in MOD B)  Short circuit/fault duty models (Addressed in MOD B)  Infrastructure maintenance • Additional gaps identified at the requirement level 3 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Outage coordination  The IRO, EOP and TOP standards do not provide a clear requirement for outage coordination to occur.  Outage coordination (of both generation and transmission) sets up the system for reliable real-time operations.  Outage coordination needs to extend out for several years.  Recommendation: Develop a requirement to address outage coordination. o Proposed “Authority Standard” requires coordination: - R7. Each Reliability Coordinator (RC) shall have the authority and responsibility to develop and implement a generation and transmission outage coordination process across Transmission Operators (TOPs) and Balancing Authorities (BAs) in their footprint. The authority may be delegated (not the responsibility). - R8. Each RC shall have the authority and responsibility to develop and implement a generation and transmission outage coordination process between its adjacent RCs. - R9. The outage coordination process described in R7 and R8 shall cover the time period from the current operating hour out through at least 36 months. 4 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Governor frequency response  Adequate governor response is fundamental to adequate Interconnection- wide frequency management. The Independent Experts (IE) team believes there can be an issue related to the geographic dispersal of frequency responsive resources within an interconnection and there is a need to verify appropriate frequency response resources.  The new BAL standards require a certain level of frequency performance but do not contain a specific requirement for governor response on the Generator Owner (GO)/Operator (GOP). o BAL-001-2 addresses Real Power Balancing Performance CPS1 and BAAL o BAL-003-1 addresses Frequency Response Measure (FRM) and Frequency Bias Setting 5 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Governor frequency response (cont’d)  Approved Planning Committee research recommends the development of a guideline.  2013 NERC State of Reliability Report: frequency response has been steady for past three years.  Recommendation: Expand the completed research to address geographic dispersal and verification of governor frequency response resources in a whitepaper with a subsequent determination whether a standard is necessary for accountability. Determine appropriate role for BAs, GOPs, RCs and TOPs. 6 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Situational awareness framework  The standards do not provide specific language for real time operators (BAs, TOPs, RCs) to have proper real time situational awareness.  The September 2011 SW blackout pointed out the need for proper real time situational awareness tools and processes.  Recommendation: Develop a standard that defines the requirements for EMS RTCA models or the performance expectations of the models. o Project 2009-02, Real-Time Monitoring and Analysis Capabilities, may address this topic. o Project 2009-02 has been on hold and was recently re-initiated. 7 RELIABILITY | ACCOUNTABILITY

Key Findings - Gaps • Infrastructure maintenance  There are requirements for maintenance of relays and vegetation management but there are no comparable maintenance requirements for other types of transmission equipment (i.e., breakers, transformers, etc.).  NERC State of Reliability 2013 key findings #5: o AC Substation Equipment Failures are a Second Significant Contributor to Disturbance Events and Automatic Transmission Outage Severity. o A recent voluntary survey of 2012 transmission outages initiated by failed AC substation equipment indicates: - 29 percent of these outages involved circuit breaker failures, - 16 percent were due to arrester failures and - 15 percent were due to power transformer failures.  Recommendation: Address the reliability issue. o The IE team is not recommending that the way to address this is with a mandatory standard. 8 RELIABILITY | ACCOUNTABILITY

Process • RISC discussion • Request for research • RISC determination of appropriate solution 9 RELIABILITY | ACCOUNTABILITY

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