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AG1-371 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 10:46

Nelson-Electric Junction 345 kV

30.0 MW Capacity / 0.0 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 AG1-371 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 Storage generating facility located in the ComEd zone — Lee County, Illinois. This project is an increase to the Interconnection Customer's AF2-041 project, which will share the same point of interconnection. The AG1-371 queue position is a 0.0 MW uprate (30.0 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 300.0 MW with 210 MW of this output being recognized by PJM as Capacity. The proposed in-service date for this project is Friday, November 01, 2024. This study does not imply a TO commitment to this in-service date.

Project Information

Queue Number

AG1-371

Project Name

Nelson-Electric Junction 345 kV

Developer Name

Steward Creek Solar, LLC

State

Illinois

County

Lee

Transmission Owner

ComEd

MFO

300.0 MW

MWE

0.0 MW

MWC

30.0 MW

Fuel Type

Storage

Basecase Study Year

2024

 

Point of Interconnection

AG1-371 will interconnect on the ComEd transmission system as an uprate to AF2-041 tapping the Nelson to Electric Junction 345 kV line.

Summer Peak Analysis

The Queue Project was evaluated as a 0.0 MW (Capacity 30.0 MW) injection in the ComEd 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
CE AF2-041 TAP-ELECT JCT; B 345.0 kV Ckt 1 line
957470 to 270730 ckt 1
Base Case Single AC 103.96 % 104.95 % 1334.0 A 1400.03 16.27
CE NELSON ; B-AG1-434 TAP 345.0 kV Ckt 1 line
270828 to 965660 ckt 1
COMED_P4_937-45-BT2-3__
CONTINGENCY 'COMED_P4_937-45-BT2-3__'
 REMOVE UNIT 1 FROM BUS 274760                                  /*LEE CO EC;1U  13.8
 REMOVE UNIT 2 FROM BUS 274761                                  /*LEE CO EC;2U  13.8
 REMOVE UNIT 3 FROM BUS 274762                                  /*LEE CO EC;3U  13.8
 REMOVE UNIT 4 FROM BUS 274763                                  /*LEE CO EC;4U  13.8
 REMOVE UNIT 5 FROM BUS 274764                                  /*LEE CO EC;5U  13.8
 REMOVE UNIT 6 FROM BUS 274765                                  /*LEE CO EC;6U  13.8
 REMOVE UNIT 7 FROM BUS 274766                                  /*LEE CO EC;7U  13.8
 REMOVE UNIT 8 FROM BUS 274767                                  /*LEE CO EC;8U  13.8
 TRIP BRANCH FROM BUS 274759 TO BUS 274760 TO BUS 274761 CKT 1  /*LEE CO EC;   345.0 - LEE CO EC;1U  13.8 - LEE CO EC;2U  13.8
 TRIP BRANCH FROM BUS 274759 TO BUS 274762 TO BUS 274763 CKT 1  /*LEE CO EC;   345.0 - LEE CO EC;3U  13.8 - LEE CO EC;4U  13.8
 TRIP BRANCH FROM BUS 274759 TO BUS 274764 TO BUS 274765 CKT 1  /*LEE CO EC;   345.0 - LEE CO EC;5U  13.8 - LEE CO EC;6U  13.8
 TRIP BRANCH FROM BUS 274759 TO BUS 274766 TO BUS 274767 CKT 1  /*LEE CO EC;   345.0 - LEE CO EC;7U  13.8 - LEE CO EC;8U  13.8
 TRIP BRANCH FROM BUS 274768 TO BUS 270678 CKT 1                /*LEE CO EC;BP 345.0 - BYRON    ; B 345.0
 TRIP BRANCH FROM BUS 274768 TO BUS 274759 CKT 1                /*LEE CO EC;BP 345.0 - LEE CO EC;   345.0
END
Breaker AC 103.1 % 104.98 % 1656.0 B 1738.47 30.54
CE NELSON ; B-AG1-434 TAP 345.0 kV Ckt 1 line
270828 to 965660 ckt 1
COMED_P4_144-45-BT6-8__
CONTINGENCY 'COMED_P4_144-45-BT6-8__'
 TRIP BRANCH FROM BUS 270730 TO BUS 270916 CKT 1   /*ELECT JCT; B 345.0 - WAYNE    ; B 345.0
 TRIP BRANCH FROM BUS 270916 TO BUS 270917 CKT 1   /*WAYNE    ; B 345.0 - WAYNE    ; R 345.0
 TRIP BRANCH FROM BUS 965553 TO BUS 270916 CKT 1   /*AG1-423 TP   345.0 - WAYNE    ; B 345.0
END
Breaker AC 100.91 % 102.99 % 1656.0 B 1705.46 34.25

Light Load Analysis

The Queue Project was evaluated as a 0.0 MW (Capacity 30.0 MW) injection in the ComEd area. Project was evaluated for compliance with applicable reliability planning criteria (PJM, NERC, NERC Regional Reliability Councils, and Transmission Owners). Potential light load 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.
Light Load Analysis
Area Facility Description Contingency Name Contingency Type DC|AC Initial Loading Final Loading Rating (MVA) Rating Type MVA to Mitigate MW Contribution Details
CE E FRANKFO; B-CRETE EC ;BP 345.0 kV Ckt 1 line
270728 to 274750 ckt 1
COMED_P1-2_345-L17703_R-S
CONTINGENCY 'COMED_P1-2_345-L17703_R-S'
 TRIP BRANCH FROM BUS 270677 TO BUS 255109 CKT 1   /*BURNHAM  ;0R 345.0 - 17MUNSTER    345.0
END
Single DC 99.99 % 100.44 % 1483.0 STE 1489.52 6.73
CE/NIPS BURNHAM ;0R-17MUNSTER 345.0 kV Ckt 1 line
270677 to 255109 ckt 1
COMED_P1-2_345-L6607__B-S
CONTINGENCY 'COMED_P1-2_345-L6607__B-S'
 TRIP BRANCH FROM BUS 270728 TO BUS 274750 CKT 1   /*E FRANKFO; B 345.0 - CRETE EC ;BP 345.0
END
Single DC 99.91 % 100.35 % 1441.0 B 1446.04 6.45
CE/NIPS BURNHAM ;0R-17MUNSTER 345.0 kV Ckt 1 line
270677 to 255109 ckt 1
COMED_P1-2_345-L94507_B-S
CONTINGENCY 'COMED_P1-2_345-L94507_B-S'
 TRIP BRANCH FROM BUS 274750 TO BUS 255112 CKT 1   /*CRETE EC ;BP 345.0 - 17STJOHN     345.0
END
Single DC 99.85 % 100.3 % 1441.0 B 1445.32 6.45

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
n5912.3 The existing SLD/ALDR rating are 1767/2032 MVA. Reconductor the line and replace the 345kV BT 10-11 & BT 9-10 CB disconnect switches at TSS 177 along with upgrading the L17703 MOD. $18,400,000
n5912 Re-conductor of the line along with station conductor upgrade at Burnham $1,000,000
n5912.1 Replace station conductor, line reconductor and upgrade CBs. $18,000,000
(TBD) Upgrade 0.6 miles of line to bundled conductor and additional susbtation upgrades required. $5,000,000
b3775.5 Replace E. Frankfort 345 kV circuit breaker 9-14 with 3150A SF6 circuit breaker. $0
b3775.4 Rebuild 345 kV double circuit extending from Crete to E. Frankfort. $0
n6639.1 Replace station conductor at TSS111 EJ, replace MOD. Relay upgrades, re-conductor part of the line. $22,300,000
s2929 Move 345 kV line 11126 (Electric Junction-Wayne) to Bus 6 and install 345 kV Bus Tie 5-6 CB. $0

Attachments

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Uprate Chain
Project Project Status MFO MWE MWC Disposition
AF2-041 Active 300.0 300.0 180.0 Transition Cycle 1
AG1-371 Active 300.0 0.0 30.0 Transition Cycle 1

Conclusion

The Transition Sort load flow retool results indicate that AG1-371 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.