Bulk Electric System Definition Task Force Update

Joint Standing Committee Meeting October 21, 2010

Brian Theaker, BESDTF Chair

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Current BESDTF Force Focus (1)

● Develop administrative process for studies to determine which elements have a material impact on BES reliability Timelines and due process for submitting and reviewing Material

Impact Assessments Evaluating proposed “technical” first-level dispute resolution

process Appeals go to Compliance Hearing Body

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Current BESDTF Force Focus (2)

● Clarify points of BES/non-BES demarcation Comments: provide illustrated examples Issue: protection systems

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Current BESDTF Force Focus (3)

● Refining “definitional” exclusion for Local Distribution Networks (LDNs) LDNs are non-radial networks functioning only to distribute

power to end-use load Issue: amount of generation in an LDN

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MIA Evaluation

● TSS MIA subgroup Early ‘10 – asked to evaluate two alternatives

Widespread and significant voltage impact of 3-phase delayed clearing fault

Short-circuit MVA

Determined neither alternative was suitable Developing alternate proposal for MIA Recommendation by December ‘10

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Proposed schedule

● TSS recommendation on MIA – December ‘10

● TSS approval of MIA – January ‘11

● Post Proposal 6 (P6) and response to comments on P5 for 45-day comment period – January ’11 First time MIA will be widely distributed

● Brief OC on presumed final proposal – March ’11

● Receive comments on P6 – March ‘11

● Special OC BESDTF workshop (via web) – April ‘11 Start of 10-day e-mail ballot period

● Seek RPIC approval – June ‘11

● Seek Board approval – June ‘11

Questions?

For every complex problem there is an answer that is clear, simple, and wrong.

H.L. Mencken

Things should be made as simple as possible, but not any simpler.

Albert Einstein

Brian Theaker, BESDTF Chair