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DSWG Update to WMS 8/10/2011

DSWG Update to WMS 8/10/2011. DSWG Goals. Next meeting on 9/30/2011 (high chance of being moved up). LR/EILS Event. 8/4/2011 – LR and EILS deployed More inline with expected EILS event Unfolded gradually Limited duration LRs dispatched first - will likely change with NPRR379

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DSWG Update to WMS 8/10/2011

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  1. DSWG Update to WMS8/10/2011

  2. DSWG Goals • Next meeting on 9/30/2011 (high chance of being moved up)

  3. LR/EILS Event • 8/4/2011 – LR and EILS deployed • More inline with expected EILS event • Unfolded gradually • Limited duration • LRs dispatched first - will likely change with NPRR379 • LRs recalled first • No firm load shed

  4. AMIT/DSWG Workshop • Aug 30th and 31st here at Met Center • Smart meters and DR • What are barriers to DR participation? • Agenda near completion

  5. Load Resources in SCED (LRIS) What we are trying to do: • Demand response offers economically dispatched by SCED for energy or as ancillary resource similar to generation resource today

  6. Load Resources in SCED (LRIS) Why are we doing this? • Helps cure unintended consequence of price suppression when DR is dispatched during shortage conditions • Price certainty to loads to loads responding to price • Enables greater load participation in the market • Increasing reliability and market competition by adding additional resources available to SCED

  7. Load Resources in SCED (LRIS) Key issues: • Settlements • M&V algorithms • Dispatch methodology • Aggregated Loads • Network modeling

  8. Load Resources in SCED (LRIS) Choices: • Settlements • Option 1 – “Volumetric Flow” • Same as “LMP – G” • Value is difference between high energy cost and retail rate • Provides separate channel of curtailed usage to REPs • Option 2 – “Full LMP” • Pay full LMP for curtailed usage • Value is energy payment and avoided costs

  9. Load Resources in SCED (LRIS) Choices: • To include in initial project: • Option 1 – Individual Resources • Much simpler • Option 2 – Include aggregations • SB1125 • Possibly more Resources

  10. Load Resources in SCED (LRIS) Suggestions from DSWG: • Looking for endorsement and direction from WMS on where this goes from here • Expect ROS involvement at minimum • Suggest ERCOT look at as part of “Look ahead SCED” project

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