| PGRR073 |
Related to NPRR956, Designation of Providers of Transmission Additions |
This Planning Guide Revision Request (PGRR) aligns the Planning Guide with NPRR956. NPRR956 revises the Protocols to align with section 37.056 of the Texas Utilities Code, as amended by SB1938 86(R), which became effective on May 16, 2019. The NPRR imports SB1938’s language regarding project responsibility and clarifies that ERCOT does not designate providers of recommended Transmission Facility additions, but simply identifies the owners of the existing Transmission Facilities to which those additions will interconnect. Consistent with the NPRR, this PGRR proposes that ERCOT’s report to the Public Utility Commission of Texas (PUCT) regarding a recommended Transmission Facility addition will identify the owners of the existing Transmission Facilities to which the addition will interconnect. |
07/02/2019 |
ERCOT |
No |
3.1.6 |
Pending |
|
| 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. |
05/28/2024 |
ERCOT |
No |
2.1, 4.1.1.1, 4.1.1.2, 5.2.10 (new), 5.3.5, 6.6 (new), 6.6.1 (new), 6.6.2 (new), 6.6.3 (new), 6.10, 9 (new), 9.1 (new), 9.2 (new), 9.2.1 (new), 9.2.2 (new), 9.2.3 (new), 9.2.4 (new), 9.2.5 (new), 9.3 (new), 9.3.1 (new), 9.3.2 (new), 9.3.3 (new), 9.3.4 (new), 9.3.4.1 (new), 9.3.4.2 (new), 9.3.4.3 (new), 9.4 (new), 9.5 (new), 9.5.1 (new), 9.5.2 (new), and 9.6 (new) |
Pending |
|
| PGRR117 |
Addition of Resiliency Assessment and Criteria to Reflect PUCT Rule Changes |
This Planning Guide Revision Request (PGRR) revises the Planning Guide to reflect the Public Utility Commission of Texas’ (PUCT’s) rulemaking addition of subsection (b)(3)(E) to 16 Texas Administrative Code (TAC) § 25.101, Certification Criteria, which requires ERCOT to conduct a biennial assessment of the ERCOT power grid’s reliability and resiliency in extreme weather scenarios and permits ERCOT to recommend transmission projects to address resiliency issues identified in the assessment. ERCOT intends to perform the biennial assessment in parallel with the Regional Transmission Plan (RTP) process. |
07/17/2024 |
ERCOT |
No |
2.2; 3.1.1.6 (new); 4.1; 4.1.2 (new) |
Pending |
|
| PGRR118 |
Related to NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era |
This Planning Guide Revision Request (PGRR) inserts terminology associated with Energy Storage Resources (ESRs) in the appropriate places throughout the Guides, aligning provisions and requirements for ESRs with those already in place for Generation Resources and Controllable Load Resources. This PGRR is applicable to ESRs in the future single-model era and should be implemented simultaneously with NPRR1246 and NPRR1014, BESTF-4 Energy Storage Resource Single Model. |
07/31/2024 |
ERCOT |
No |
2.1, 3.1.1.3, 3.1.1.4, 3.1.2.1, 3.1.3, 3.1.3.1, 3.1.4, 3.1.4.1, 3.1.4.1.1, 3.1.8, 3.1.9, 4.1, 4.1.1.1, 5, 5.2.1, 5.3, 5.3.1, 5.3.2, 5.3.2.1, 5.3.2.3, 5.3.2.4.1, 5.3.5, 6.1, 6.2, 6.2.1, 6.3, 6.8, 6.8.1, 6.8.2, 6.9, 6.11, 7.1, 8A, and 8C |
Pending |
|
| PGRR119 |
Stability Constraint Modeling Assumptions in the Regional Transmission Plan |
This Planning Guide Revision Request (PGRR) revises the Planning Guide to codify that a reliability margin will be utilized when limits associated with a stability constraint are modeled in the Regional Transmission Plan reliability and economic base cases. |
09/09/2024 |
ERCOT |
No |
3.1.4.1.1 |
Pending |
|
| PGRR120 |
SSO Prevention for Generator Interconnection |
This Planning Guide Revision Request (PGRR) prevents generators from interconnecting to the ERCOT Transmission Grid if the generator would be radial to a series capacitor under N-1 conditions. |
10/14/2024 |
ERCOT |
No |
5.2.10 (new) |
Pending |
|
| PGRR121 |
Related to NOGRR272, Advanced Grid Support Requirements for Inverter-Based ESRs |
This Planning Guide Revision Request (PGRR) establishes model quality test and unit model validation requirements for inverter-based Energy Storage Resources (ESRs) with a Standard Generation Interconnection Agreement (SGIA) executed on or after April 1, 2025. |
10/31/2024 |
ERCOT |
No |
6.2 |
Pending |
|
| PGRR122 |
Reliability Performance Criteria for Loss of Load |
This Planning Guide Revision Request establishes a new reliability performance criteria that no more than 1,000 MW of Load may be lost for any single contingency, and also specifies how loss of Load is calculated for this criteria. |
11/11/2024 |
ERCOT |
No |
4.1.1.2 |
Pending |
|
| PGRR123 |
Related to NPRR1264, Creation of a New Energy Attribute Certificate Program |
This Planning Guide Revision Request (PGRR) modifies what an Entity may be affected by in order to qualify to submit PGRRs, in alignment with Protocol changes made by NPRR1264. |
12/19/2024 |
Texas Energy Buyers Alliance (TEBA) |
No |
1.2.2 |
Pending |
|
| PGRR124 |
ESR Maintenance Exception to Modifications |
This Planning Guide Revision Request (PGRR) adds an exemption to the Generator Interconnection or Modification (GIM) process for Energy Storage Resources (ESR)s adding rather than replacing equipment while maintaining the facility’s High Sustained Limit (HSL). |
02/07/2025 |
Tesla |
No |
5.2.1.1 (new) |
Pending |
|