PGRR115  Related to NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater

This Planning Guide Revision Request (PGRR) creates a new process for studying the reliability impacts of all Large Loads (as defined in the accompanying NPRR1234) seeking to interconnect to the ERCOT System. As with the Full Interconnection Study (FIS) required for proposed Generation Resources, this PGRR requires a Large Load Interconnection Study (LLIS) for each new Large Load meeting applicability requirements that is proposed to interconnect to the ERCOT System. Like the FIS, the LLIS will consist of a similar suite of studies conducted by one or more affected Transmission Service Providers (TSPs). This PGRR describes these studies in detail and establishes timelines for the review of these studies and the completion of other steps in the interconnection process. This PGRR also: requires all Large Loads evaluated via the LLIS to be included in the existing quarterly stability assessment prior to Initial Energization; adds additional reliability performance criteria for the inclusion and evaluation of Large Loads in planning studies; adds requirements that must be met prior to including a Large Load in the ERCOT Network Operations Model; and establishes required interconnection equipment for both Generation Resources and Large Loads.