Complete Directives - Southern Cross Transmission
Directive Title Description Status
3Determination regarding ramp rate restrictionsAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall determine what ramp rate restrictions, if any, will be necessary to accommodate the interconnection of the Southern Cross DC tie and shall implement those restrictions and shall certify to the Commission when it has completed these actions.Complete
4Development of methodology for outage coordinationAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall develop and implement a methodology to reliably and cost-effectively coordinate outages following the interconnection of the Southern Cross DC tie and shall certify to the Commission when it has completed these actions.Complete
5Determination of planning model assumptions and considerationsAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall study and determine how best to model the Southern Cross DC tie in its transmission planning cases, make any necessary revisions to its standards, guides, systems, and protocols as appropriate, and certify to the Commission when it has completed these actions.Complete
7Determination as to how to manage congestion caused by DC tieAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall (a) study and determine whether some or all DC ties should be economically dispatched or whether implementing a congestion-management plan or special protection scheme would more reliably and cost-effectively manage congestion caused by DC tie flows, (b) implement any necessary revisions to its protocols, guides, standards, and systems as appropriate, and (c) certify to the Commission when it has completed these actions.Complete
10Determination regarding price formation under emergency conditionsAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall study price formation issues to determine whether, to avoid the flows over the DC ties adversely affecting price formation in the ERCOT wholesale market or otherwise causing outcomes inconsistent with a properly functioning energy market, any changes to pricing within the ERCOT market during emergencies are necessary. ERCOT shall certify to the Commission when it has completed these actions.Complete