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