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AE2-283 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 11:13

Gladys-Stone Mill 69 kV

39.6 MW Capacity / 60.4 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 AE2-283 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 a Solar generating facility located in the Dominion zone Campbell County, Virginia. The installed facilities will have a total capability of 60.4 MW with 39.6 MW of this output being recognized by PJM as Capacity.

Project Information
Queue Number AE2-283
Project Name Gladys-Stone Mill 69 kV
Developer Name Gladys Solar, LLC
State Virginia
County Campbell
Transmission Owner Dominion
MFO 60.4 MW
MWE 60.4 MW
MWC 39.6 MW
Fuel Type Solar
Basecase Study Year 2022

Point of Interconnection

AE2-283 “Gladys-Stone Mill 69 kV” will interconnect with the Dominion’s transmission system through a new single breaker 69 kV switching station tapped off the Gladys to Stone Mill 69 kV line adjacent to the transmission right-of-way. This is the primary Point of Interconnection (POI) chosen by the IC with the ITO’s transmission system. The IC is responsible for securing right-of-way, permits and constructing the proposed attachment line from the solar facility site to the proposed POI. The IC may not install any facilities on Dominion’s right-of-way without first obtaining the necessary approval from Dominion Energy. See Attachment 1 for the one line diagram.

 

Summer Peak Analysis

The Queue Project was evaluated as a 60.4 MW (Capacity 39.6 MW) injection in the Dominion 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
AEP 05BANSTR-05EDAN 2 138.0 kV Ckt 1 line
242549 to 242632 ckt 1
AEP_P4_#10210_05CLOVRD 138_A2_AE1-064
CONTINGENCY 'AEP_P4_#10210_05CLOVRD 138_A2_AE1-064'
 OPEN BRANCH FROM BUS 242607 TO BUS 243892 CKT 1    /*05CLOVRD     138.0 - 05MEADS8     138.0
 OPEN BRANCH FROM BUS 242720 TO BUS 242775 CKT 1    /*05MONETA     138.0 - 05ROCKCA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 242720 CKT 1    /*05MEADS8     138.0 - 05MONETA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 243893 CKT Z1   /*05MEADS8     138.0 - 05MEADS 8     24.9
 REMOVE LOAD D8 FROM BUS 242607                     /*05CLOVRD     138.0
END
Breaker AC 128.82 % 132.21 % 296.0 B 391.34 10.24
AEP 05BANSTR-05EDAN 2 138.0 kV Ckt 1 line
242549 to 242632 ckt 1
AEP_P4_#10213_05CLOV4 EQ 999_A
CONTINGENCY 'AEP_P4_#10213_05CLOV4 EQ 999_A'
 OPEN BRANCH FROM BUS 242560 TO BUS 242607 CKT 1    /*05BONSCK     138.0 - 05CLOVRD     138.0
 OPEN BRANCH FROM BUS 242560 TO BUS 242840 CKT 1    /*05BONSCK     138.0 - 05VINTON     138.0
 OPEN BRANCH FROM BUS 242607 TO BUS 243892 CKT 1    /*05CLOVRD     138.0 - 05MEADS8     138.0
 OPEN BRANCH FROM BUS 242720 TO BUS 242775 CKT 1    /*05MONETA     138.0 - 05ROCKCA     138.0
 OPEN BRANCH FROM BUS 242773 TO BUS 242840 CKT 1    /*05ROANO1     138.0 - 05VINTON     138.0
 OPEN BRANCH FROM BUS 242775 TO BUS 247499 CKT 1    /*05ROCKCA     138.0 - 05SMITHMTN2  138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 242720 CKT 1    /*05MEADS8     138.0 - 05MONETA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 243893 CKT Z1   /*05MEADS8     138.0 - 05MEADS 8     24.9
END
Breaker AC 120.63 % 124.01 % 296.0 B 367.07 10.26
AEP 05BANSTR-05EDAN 2 138.0 kV Ckt 1 line
242549 to 242632 ckt 1
AEP_P4_#10210_05CLOVRD 138_A2
CONTINGENCY 'AEP_P4_#10210_05CLOVRD 138_A2'
 OPEN BRANCH FROM BUS 242607 TO BUS 243892 CKT 1    /*05CLOVRD     138.0 - 05MEADS8     138.0
 OPEN BRANCH FROM BUS 242720 TO BUS 242775 CKT 1    /*05MONETA     138.0 - 05ROCKCA     138.0
 OPEN BRANCH FROM BUS 242775 TO BUS 247499 CKT 1    /*05ROCKCA     138.0 - 05SMITHMTN2  138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 242720 CKT 1    /*05MEADS8     138.0 - 05MONETA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 243893 CKT Z1   /*05MEADS8     138.0 - 05MEADS 8     24.9
 REMOVE LOAD D8 FROM BUS 242607                     /*05CLOVRD     138.0
END
Breaker AC 120.5 % 123.87 % 296.0 B 366.66 10.24
AEP AE1-250 TAP-05BANSTR 138.0 kV Ckt 1 line
940080 to 242549 ckt 1
AEP_P4_#10210_05CLOVRD 138_A2_AE1-064
CONTINGENCY 'AEP_P4_#10210_05CLOVRD 138_A2_AE1-064'
 OPEN BRANCH FROM BUS 242607 TO BUS 243892 CKT 1    /*05CLOVRD     138.0 - 05MEADS8     138.0
 OPEN BRANCH FROM BUS 242720 TO BUS 242775 CKT 1    /*05MONETA     138.0 - 05ROCKCA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 242720 CKT 1    /*05MEADS8     138.0 - 05MONETA     138.0
 OPEN BRANCH FROM BUS 243892 TO BUS 243893 CKT Z1   /*05MEADS8     138.0 - 05MEADS 8     24.9
 REMOVE LOAD D8 FROM BUS 242607                     /*05CLOVRD     138.0
END
Breaker AC 98.71 % 101.27 % 392.0 B 396.98 10.24
AEP/DVP 4ALTVSTA-05OTTER 138.0 kV Ckt 1 line
314667 to 242741 ckt 1
Base Case Single AC 109.88 % 117.92 % 167.0 A 196.93 13.52
AEP 05OTTER-05JOHNMT 138.0 kV Ckt 1 line
242741 to 242687 ckt 1
Base Case Single AC 107.51 % 115.54 % 167.0 A 192.95 13.52
AEP 05JOHNMT-05NEWLDN 138.0 kV Ckt 1 line
242687 to 242734 ckt 1
Base Case Single AC 103.78 % 111.81 % 167.0 A 186.72 13.52
DVP 2STONE MIL-2ALTVSTA 69.0 kV Ckt 1 line
314730 to 314670 ckt 1
Base Case Single AC 66.93 % 106.89 % 101.52 A 108.51 39.6
DVP AE2-283 TAP-2STONE MIL 69.0 kV Ckt 1 line
942670 to 314730 ckt 1
Base Case Single AC 47.71 % 105.89 % 66.74 A 70.67 39.6

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
n6457.1 The sag study was completed under AE1-130 project and determined that no violations occur on this line when operating at Maximum Operating Temperature. No work required on the circuit at this time. $0
n6466.1 Replace 1590 AAC 61 Str. Station condutor at Banister $100,000
n6224 Current Station Rating: S/N: 167, S/E: 240 1) Rebuild/reconductor ACSR ~ 397.5 ~ 30/7 ~ LARK ~ Fe Clamps 9 d, Conductor Section 1, 6.5 miles $9,750,000
n6241 AEPA0019a and AEPA0019b $10,675,000
n5613 Rebuild 0.9 miles of the Otter - Alta Vista 138 kV line $2,740,849
n6609 Rebuild 1.64 miles of 69 kV Line 35 from Stone Mill to Altavista with 768 ACSS. $2,132,000
n6610 Rebuild 7.4 miles of 69 kV Line 35 from AE2-283 Tap to Stone Mill with 636 ACSR. $9,620,000

Attachments

Attachment 1: One Line Diagram for Queue Project AE2-283.

AE2-283.PNG

Export to CSV Download all tables in report

Conclusion

The Transition Sort load flow retool results indicate that AE2-283 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.