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AG1-022 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 10:47

Scottsville-Colleen 138 kV

12.0 MW Capacity / 20.0 MW Energy

Introduction

In accordance with Tariff Part VII, Subpart B, section 304, PJM performed load flow analysis (Transition Sort Retool) on all AE1 through AG1 projects that have met eligibility requirements according to Tariff, Part VII, Subpart B, section 303. The purpose of this study is to determine whether a project would be classified as eligible for the Expedited Process (Fast Lane) or if it would be reprioritized to be studied as part of Transition Cycle #1 (TC1) using the criteria from the Expedited Process Eligibility section of Tariff Part VII, section 304. This is not a System Impact Study report.

Below are the results of the study, details of how the study was performed, criterion used in the evaluation of the Expedited Process vs. TC1 determination, and next steps in the interconnection process for your project.

Transition Cycle #1:

The AG1-022 project has not met the Expedited Process Eligibility requirements in Tariff Part VII, Subpart B, section 304 and will therefore be reprioritized to Transition Cycle #1. Please see "Transition Cycle #1 Rules" below.

Transition Sort Retool Study Process and Criteria:

In order to determine Expedited Process vs. Transition Cycle #1 classification, projects which met the Transition Eligibility requirements from Tariff Part VII, Subpart B, section 303 were studied on the base case model that was used for the original System Impact Study analysis. Both a summer peak and light load load flow analysis were performed. Projects that have cost allocation eligibility or are identified as the first to cause a system violation which requires the need for a Network Upgrade with a total estimated cost greater than $5 million will be reprioritized to Transition Cycle #1. All other projects will be eligible for the expedited procedures set forth in Tariff Part VII, Subpart B, section 304 (B).

Expedited Process Eligibility: OATT Tariff Part VII, section 304:

A project is not eligible for the expedited process if it has cost allocation eligibility or is identified as the first to cause, as determined according to Tariff, Part VI, section 217.3, for a Network Upgrade which has a total estimated cost of greater than $5,000,000. Such cost estimate will be based on Transmission Provider's most recently available data.

Not considered in the Transition Sorting: The cost of the Interconnection Facilities is not considered when determining a project's eligibility for the expedited process. Affected Systems upgrade costs are also not considered in the evaluation.

Transition Sort Retool Results Provided:

This report includes a list of:

  1. the overloaded flowgates (overloaded facilities + contingency pair) that the project contributes towards
  2. other interconnection projects that may also contribute to the overloaded facility, and
  3. the total estimated cost for any required Network Upgrades.

Important Notes:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.

Next Steps for your project:

Transition Cycle #1 Rules:

Refer to Tariff Part VII, Subpart B, section 304 (C) for the Transition Cycle #1 Project Rules.

Transition Cycle #1 will start no later than one year from the Transition Start Date (July 10, 2023). Transition Cycle #1 will run simultaneously with the expedited process, however Transition Cycle #1, Phase III will not begin until all expedited process projects have been completed.

Projects that are reprioritized to Transition Cycle #1 will not need to re-apply to the Interconnection Cycle Process. Therefore, there is no Application Review Phase for Transition Cycle #1. The cycle process for Transition Cycle #1 includes three Study Phases and three Decision Points:

  1. Phase I System Impact Study and Decision Point I; and
  2. Phase II System Impact Study and Decision Point II; and
  3. Phase III System Impact Study and Decision Point III

Refer to Tariff Part VII, Subpart D, section 307 for the Transition Cycle #1 study process.

General

The Interconnection Customer (IC) has proposed an uprate to a planned/existing Solar generating facility located in the AEP zone Albemarle County, Virginia. This project is an increase to the Interconnection Customer's original project, which will share the same point of interconnection. The AG1-022 queue position is a 20.0 MW uprate (12.0 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 95.0 MW.

Project Information
Queue Number AG1-022
Project Name Scottsville-Colleen 138 kV
Developer Name Vista Energy Facility, LLC
State Virginia
County Albemarle
Transmission Owner AEP
MFO 95.0 MW
MWE 20.0 MW
MWC 12.0 MW
Fuel Type Solar
Basecase Study Year 2024

Point of Interconnection

AG1-022 will interconnect on the AEP transmission system as an uprate of the AF1-323 & AF2-302 which is tapping the Scottsville to Colleen 138 kV line.

Summer Peak Analysis

The Queue Project was evaluated as a 20.0 MW (Capacity 12.0 MW) injection in the AEP area. Project was evaluated for compliance with applicable reliability planning criteria (PJM, NERC, NERC Regional Reliability Councils, and Transmission Owners). Potential Summer peak period network impacts are listed below:

Important to Note:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.
Summer Peak Analysis
Area Facility Description Contingency Name Contingency Type DC|AC Initial Loading Final Loading Rating (MVA) Rating Type MVA to Mitigate MW Contribution Details
DVP AE1-108 TAP-4BREMO 138.0 kV Ckt 1 line
938820 to 314746 ckt 1
DVP_P1-2: LN 566
CONTINGENCY 'DVP_P1-2: LN 566'
 OPEN BRANCH FROM BUS 242519 TO BUS 314912 CKT 1   /*05CLOVRD     500.0 - 8LEXNGTN     500.0
END
Single AC 98.79 % 103.4 % 156.98 B 162.31 7.34
DVP AE1-108 TAP-4BREMO 138.0 kV Ckt 1 line
938820 to 314746 ckt 1
PJM_PLANT BEAR GARDEN
CONTINGENCY 'PJM_PLANT BEAR GARDEN'
 REMOVE MACHINE G1 FROM BUS 315191   /*1BEARGRDN G1  18.0
 REMOVE MACHINE G2 FROM BUS 315192   /*1BEARGRDN G2  18.0
 REMOVE MACHINE S1 FROM BUS 315193   /*1BEARGRDN S1  22.0
END
Single AC 96.41 % 100.98 % 156.98 B 158.53 7.33
DVP AE2-092 TAP-3SHERWOD 115.0 kV Ckt 1 line
941010 to 314774 ckt 1
314765 6MTEAGLE 230 961060 AF2-397 TAP 230 1
CONTINGENCY '314765 6MTEAGLE      230  961060 AF2-397 TAP   230  1'  /* Auto-generated
  /* 314765 6MTEAGLE      230  961060 AF2-397 TAP   230  1
END
Single AC 99.98 % 100.73 % 169.2 B 170.44 1.27
DVP AE2-092 TAP-3SHERWOD 115.0 kV Ckt 1 line
941010 to 314774 ckt 1
DVP_P1-2: LN 2028
CONTINGENCY 'DVP_P1-2: LN 2028'
 OPEN BRANCH FROM BUS 314749 TO BUS 314765 CKT 1   /*6CHARLVL     230.0 - 6MTEAGLE     230.0
 OPEN BRANCH FROM BUS 961060 TO BUS 314765 CKT 1   /*AF2-397 TAP  230.0 - 6MTEAGLE     230.0
 OPEN BUS 314765                                   /*6MTEAGLE     230.0
END
Single AC 99.64 % 100.39 % 169.2 B 169.86 1.27
DVP AE1-108 TAP-4BREMO 138.0 kV Ckt 1 line
938820 to 314746 ckt 1
DVP_P4-2: 547T566
CONTINGENCY 'DVP_P4-2: 547T566'
 OPEN BRANCH FROM BUS 242519 TO BUS 314912 CKT 1   /*05CLOVRD     500.0 - 8LEXNGTN     500.0
 OPEN BRANCH FROM BUS 314901 TO BUS 314912 CKT 1   /*8BATH CO     500.0 - 8LEXNGTN     500.0
END
Breaker AC 133.67 % 140.1 % 173.0 C 242.37 12.24
DVP AE1-108 TAP-4BREMO 138.0 kV Ckt 1 line
938820 to 314746 ckt 1
DVP_P4-2: 56602
CONTINGENCY 'DVP_P4-2: 56602'
 OPEN BRANCH FROM BUS 242519 TO BUS 314912 CKT 1   /*05CLOVRD     500.0 - 8LEXNGTN     500.0
 OPEN BRANCH FROM BUS 314856 TO BUS 314912 CKT 1   /*6LEXNGT2     230.0 - 8LEXNGTN     500.0
END
Breaker AC 132.39 % 138.82 % 173.0 C 240.16 12.24
DVP AE2-092 TAP-3SHERWOD 115.0 kV Ckt 1 line
941010 to 314774 ckt 1
DVP_P7-1: LN 5-2028-B
CONTINGENCY 'DVP_P7-1: LN 5-2028-B'
 OPEN BRANCH FROM BUS 314744 TO BUS 314754 CKT 1   /*3BREMO       115.0 - 3CUNNING     115.0
 OPEN BRANCH FROM BUS 961060 TO BUS 314765 CKT 1   /*AF2-397 TAP  230.0 - 6MTEAGLE     230.0
 OPEN BUS 314754                                   /*3CUNNING     115.0
END
Tower AC 99.34 % 100.36 % 208.0 C 208.74 2.12
DVP AE2-092 TAP-3SHERWOD 115.0 kV Ckt 1 line
941010 to 314774 ckt 1
DVP_P7-1: LN 5-2028-C
CONTINGENCY 'DVP_P7-1: LN 5-2028-C'
 OPEN BRANCH FROM BUS 314744 TO BUS 314754 CKT 1   /*3BREMO       115.0 - 3CUNNING     115.0
 OPEN BRANCH FROM BUS 314749 TO BUS 314765 CKT 1   /*6CHARLVL     230.0 - 6MTEAGLE     230.0
 OPEN BRANCH FROM BUS 961060 TO BUS 314765 CKT 1   /*AF2-397 TAP  230.0 - 6MTEAGLE     230.0
 OPEN BUS 314754                                   /*3CUNNING     115.0
 OPEN BUS 314765                                   /*6MTEAGLE     230.0
END
Tower AC 99.07 % 100.08 % 208.0 C 208.16 2.12

Light Load Analysis

At this time light load analysis not required for this project.

System Reinforcements

The table below lists all network upgrades which resolve the identified overloaded facilities in this report.

Important to Note:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.
  3. Reinforcements previously identified by Transmission Owners for violations on lower voltage facilities are included in this report. Transmission Owner analysis will be updated as part of the Expedited Process and Transition Cycle 1 retools.
System Reinforcements
RTEP ID Title Total Cost
n6378 Rebuild 6.42 miles of 115 kV Line 91 from AE2-092 Tap to Sherwood with 2-636 ACSR. $16,050,000
n7812 Reconductor 8.502 miles of 138 kV line 8 from AE1-108 Tap to Bremo with 636 ACSR 150 C $5,101,200

Attachments

Export to CSV Download all tables in report

Uprate Chain
Project Project Status MFO MWE MWC Disposition
AF1-323 Active 55.0 55.0 33.0 Transition Cycle 1
AF2-302 Active 75.0 20.0 12.0 Transition Cycle 1
AG1-022 Active 95.0 20.0 12.0 Transition Cycle 1

Conclusion

The Transition Sort load flow retool results indicate that AG1-022 is not eligible for the Expedited Process per PJM Tariff Part VII, Subpart B, section 304 (A) will be reprioritized to Transition Cycle #1. See next steps for your project in the "Introduction" section above.