PGRR068  Addition of a Proposed DC Tie to the Planning Models

In Public Utility Council of Texas (PUCT) Project No. 46304, the PUCT directed ERCOT to determine how to best model the Southern Cross DC Tie in its planning cases. Pursuant to that Directive, ERCOT has determined that a Planning Guide Revision Request (PGRR) is necessary to address when a new Direct Current Tie (DC Tie) should be added to the ERCOT planning models. Accordingly, this PGRR describes the process for adding a DC Tie to the models and associated requirements.