In Progress Directives - Southern Cross Transmission
Directive Title Description Status
1Determination of appropriate market participant category and market segmentAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall (a) determine the appropriate market participation category for Southern Cross Transmission LLC and for any other entity associated with the Southern Cross DC tie for which a new market-participant category may be appropriate (creating new ones if necessary), (b) implement the modifications to the standard-form market-participant agreement and its protocols, bylaws, operating guides, and systems required for Southern Cross Transmission's and any other entity's participation, and (c) determine the appropriate market segment for Southern Cross Transmission and any other entity.In Progress
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.In Progress
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.In Progress
6Determination regarding any needed transmission upgradesAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall study and determine what transmission upgrades, if any, are necessary to manage congestion resulting from power flows over the Southern Cross DC tie, make any necessary revisions to its standards, guides, systems, and protocols as appropriate, and certify to the Commission when it has completed these actions.In Progress
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.In Progress
8Determination regarding Primary Frequency Response and Voltage SupportAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall (a) study and determine whether Southern Cross Transmission or any other entity scheduling flows across the Southern Cross DC tie should be required to provide or procure voltage support service or primary frequency response, or their technical equivalents, (b) implement any necessary revisions to its standards, guides, systems, and protocols, as appropriate, and (c) certify to the Commission when it has completed these actions.In Progress
9Determination regarding modifications to Ancillary ServicesAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall (a) evaluate what modifications to existing and additional ancillary services, if any, are necessary for the reliable interconnection of the Southern Cross DC tie, (b) implement any needed modifications to ancillary-services procurement, (c) recommend how the costs of such required ancillary services are to be allocated, and (d) certify to the Commission when it has completed these actions.In Progress
13ERCOT reporting of status of work on Directives to PUCTAs ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall periodically update the Commission regarding its progress in completing the above tasks.In Progress
14ERCOT updates to PUCT regarding completion dates for Directives 1 to 12As ordered by the Public Utility Commission of Texas (PUCT) in Project No. 46304: ERCOT shall, as soon as practicable, notify the Commission of reasonable completion dates for the above tasks and shall report any changes to those completion dates as changes become known.In Progress