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for Accommodating the Integration of VG

WECC VGS PWG P-3 Transmission Capacity and Adequacy. for Accommodating the Integration of VG. Matt Muldoon Mar 31, 2011. Usual Caveats. Personal Opinion Cannot Prejudge any Issue Cannot Restrict any Commission. Recent FERC NOPR’s & Initiatives. What are we learning re:

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for Accommodating the Integration of VG

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  1. WECC VGS PWG P-3 Transmission Capacity and Adequacy for Accommodating the Integration of VG Matt MuldoonMar 31, 2011

  2. Usual Caveats • Personal Opinion • Cannot Prejudge any Issue • Cannot Restrict any Commission

  3. Recent FERC NOPR’s & Initiatives • What are we learning re: • Limitations of Existing Transmission Infrastructure • General study findings may not apply to specific circumstances • Many directly related issues require automation which may not be present (e.g., dynamic transfer, intra-hour scheduling) • Local capabilities or technology may place limits on available benefits

  4. Recurrent Drivers • Automation – RAS“Remedial Action Schemes” • Automatic Generation Control • Other System Automation + Vs.

  5. Uneven Distribution of Suitability • Age of T System & Supporting IT • Amount of Long Lead Resources • Ex: Hydro Flows between Dams • Ability to Translate Upgrades into Programs that DeliverExpected Benefits

  6. Automation Impact on T Adequacy? • What Investment in Automation Enables what Increased Capabilities with Existing Grid Facilities? • Dynamic Transfer • Intra-Hour Scheduling • Better Use of Non-Contiguous Resources • Other System Flexibilities

  7. Possible Scale of Benefits • Better Interim Grid Utilization – NOT Eliminated Transmission Build • More Workable Seams Issues– NOT Elimination of Seams Issues • Ability to Integrate More VER More Reliably– Not Necessarily Sooner Incremental Rather than Transformational Change

  8. Possible Scale of Costs For a larger BA, roughly$50 Million is needed to BetterUtilize T Lines with aReplacement Cost of $1B+ Ea.. Usual IT and Automation Risks • Regulatory risk of recovering costs • Difficult to Isolate Just IT Needed • Difficult to Integrate New Software • Fear of Cascading Upgrades A

  9. Possible VGS Delivered Value Characterize Linkages between: • Automation and System Capabilities • BA Characteristics and Benefit Limiters • Type of Automation and Overlap of Enabled or Hindered (Sub) Regional Initiatives

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