reliability deployments task force update wms meeting 08 10 11
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Reliability Deployments Task Force Update WMS Meeting - 08.10.11. WMS Chair created task force with the directive that the task force will address real-time market outcomes when reliability commitments and deployments are made by ERCOT

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reliability deployments task force update wms meeting 08 10 11
Reliability Deployments Task Force Update WMS Meeting - 08.10.11
  • WMS Chair created task force with the directive that the task force will address real-time market outcomes when reliability commitments and deployments are made by ERCOT
  • RDTF meetings occurred on July 15th, July 25th, July 28th, and August 8th
  • Data Review:
    • Reviewed generally ERCOT deployment of NSRS from December 1, 2010 – June 30, 2011
      • Length of deployment
      • Amount of deployment
      • LSL added during deployment
    • Reviewed RUC commitments in May/June 2011
      • Reason for RUC commitments
      • Deployment quantities
    • Deep dive review of NSRS deployments on July 13 and July 18th
      • Real-time price impact due to deployments, type of NSRS units deployed (online, offline, quickstart), aggregated energy offer curves of NSRS units
rdtf update cont
RDTF Update (cont.)
  • Consensus opinion:
    • Deployment of NSRS and RUC impacts real-time energy prices
      • 0 – LSL impact
      • LSL – HSL impact
  • Task force has reviewed proposals to address impact of deployments on real-time energy prices
      • ERCOT Proposal
      • Macquarie Proposal
      • Morgan Stanley Proposal
      • Shams Proposal
  • Proposals continue to evolve through discussion
    • Consensus has not been reached on solution to address impact of deployments on real-time energy prices
    • Key differentiator between proposals is whether or not an offer floor is needed for NSRS units and the level of offer floor
    • Proposals range from no offer floor to $3000 per MWh offer floor for NSRS units
    • To facilitate discussion regarding potential solution ERCOT provided SCED re-run scenarios for different offer floors during July 13th and July 18th NSRS deployments
      • Offer floor scenarios
        • Scenario 1 = Online NSRS (18*FIP) and Offline (15*FIP + $120)
        • Scenario 2 = $500
        • Scenario 3 = $1000
        • Scenario 4 = $3000
rdtf update cont1
RDTF Update (cont.)
  • Implementation timeline for offer floor proposals:
    • Assumption that implementation of proposals will require NPRR approval and impact analysis
  • Task force also is reviewing potential short term solutions (solutions that could be implemented without NPRR such as revisions to deployment procedures)
    • Deploy online NSRS earlier in procedure
    • Partial deployment of NSRS
    • Quickstart NSRS participation in SCED
    • NSRS recall procedures review
    • Change in RUC policy to utilize the NSRS above the largest unit prior to deploying RUC for capacity insufficiency
  • Other issues raised for potential future discussion at RDTF
    • Impact of RRS deployment on real-time energy prices
    • EILS deployment impact on real-time energy prices
    • Impact of RMR deployments on real-time energy prices
    • RUC self-commitment/clawback
rdtf update cont2
RDTF Update (cont.)
  • Next RDTF Meeting is on August 17th
  • PUC Workshop on August 22nd
    • Purpose is to discuss the proposals on factors affecting pricing during reliability deployments in an open meeting before both Commissioners.
    • Prior to the workshop, the Commission requests interested persons file comments to the following questions:
      • Please provide proposals to address non-spinning reserve deployment procedures and describe in detail the market incentives that are derived from your proposal.
      • How does your proposal enable the most competitive and efficient prices when non-spinning reserves are deployed?
  • Presentations referred to in this update have been distributed to the WMS e-mail list
wms motion to endorse concepts
WMS Motion to Endorse Concepts
  • Due to complexity, WMS is unable to make any recommendation at this time to address 0 – LSL impact but should continue to monitor
  • Energy offer curve for RRS and Up Reg should be at system-wide offer cap
  • Revise RUC policy to allow for delay of RUC for capacity insufficiency by using portion of NSRS capacity
  • Review NSRS deployment and recall process
  • Deploy online NSRS and Quick Start in SCED subject to a determined offer floor and deploy prior to offline NSRS
  • Treat offline NSRS similar to today subject to a determined offer floor for the EOC from LSL – HSL
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