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Review of Commercial Impacts of DC Tie Curtailments W MWG March 25, 2019 Market Analysis

This review examines the commercial impacts of DC tie curtailments in the January 2019 market analysis. It discusses the reasons behind the curtailment events and their effects on the ERCOT market.

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Review of Commercial Impacts of DC Tie Curtailments W MWG March 25, 2019 Market Analysis

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  1. Review of Commercial Impacts of DC Tie Curtailments WMWG March25, 2019 Market Analysis

  2. DC Tie Tag Curtailments – January 2019 • There was 1 DC tie tag curtailment event • Due to local congestion • ERCOT posted a DC tie curtailment notice to MIS during this event

  3. DC Tie Tag Curtailments – January 2019 Constraint was not activated in SCED due to no Resources having meaningful shift factors.

  4. DC-S (Eagle Pass) and Constraint Locations overloaded element O DC-S X contingency

  5. 1/25/2019 Curtailment of DC-S

  6. 1/25/2019 LMPs Related to DC-S Curtailment

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