September 29,2014|VRWG
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September 29,2014|VRWG. Steven Weaver. Manager, Operational performance, training and Integration. Review of Existing Procedures. Curtailment Procedures and Priority. Minimum Generation – Post Wind Integration. CROP.25005 Minimum Generation Minimum Generation Emergency

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September 29,2014|VRWG

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September 29 2014 vrwg

September 29,2014|VRWG

Steven Weaver

Manager, Operational performance, training and Integration

Review of Existing Procedures

Curtailment Procedures and Priority


Minimum generation post wind integration

Minimum Generation – Post Wind Integration

  • CROP.25005 Minimum Generation

  • Minimum Generation Emergency

    • Software will dispatch Generators to Emergency Minimum

    • Day-Ahead transactions can be curtailed

    • If the above actions do not mitigate the Minimum Generation Emergency, non-dispatchable Generators may be reduced. (Wind is curtailed here)

      • In economic order using a bid de-stacker to EmerMin

      • Pro rata curtailment where prices are identical

      • Some latitude for inter-temporal constraints and system capacity

      • No wind has been curtailed for a Minimum Generation Emergency condition, post wind integration.


Transmission curtailment post wind integration

Transmission Curtailment – Post Wind Integration

  • SOP-RTMKTS 0060 0020 Monitor System Security

    • Dispatchable generators to Economic Minimum

    • Deny Real-Time only Self Schedule Generators

    • Deny Day-Ahead Self Schedule Generators pro-rata

    • May be modified for any of the following

      • Thermal constraint sensitivity

      • System and area capacity

      • Minimum run and minimum down times

      • Other reliability concerns (i.e. voltage performance, stability)

    • Language added to SOP detailing process for making pro rata generator curtailments


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