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AE1-070 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 11:15

Elwood 345 kV

135.0 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 AE1-070 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 Natural Gas generating facility located in the ComEd zone Will County, Illinois. This project is an increase to the Interconnection Customer's original project, which will share the same point of interconnection. The AE1-070 queue position is a 0.0 MW uprate (135.0 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 1610.0 MW.

Project Information
Queue Number AE1-070
Project Name Elwood 345 kV
Developer Name Elwood Energy, LLC
State Illinois
County Will
Transmission Owner ComEd
MFO 1610.0 MW
MWE 0.0 MW
MWC 135.0 MW
Fuel Type Natural Gas
Basecase Study Year 2022

Point of Interconnection

AE1-070 is an uprate to the existing Elwood Energy Units which interconnects on the ComEd transmission system at TSS 900 Elwood bus at the Elwood 345 kV substation.

 

Summer Peak Analysis

The Queue Project was evaluated as a 0.0 MW (Capacity 135.0 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 ELWOOD ; R-GOODINGS ;2R 345.0 kV Ckt 1 line
270737 to 270769 ckt 1
COMED_P2-2_116_GG-345B__4
CONTINGENCY 'COMED_P2-2_116_GG-345B__4'
 DISCONNECT BUS 270770   /*GOODINGS ;4B 345.0
END
Bus AC 102.04 % 104.7 % 1568.0 STE 1641.69 45.33
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
COMED_P2-2_116_GG-345R__2_NO_FSA
CONTINGENCY 'COMED_P2-2_116_GG-345R__2_NO_FSA'
 DISCONNECT BUS 270769   /*GOODINGS ;2R 345.0
END
Bus AC 100.79 % 103.41 % 1568.0 STE 1621.43 44.2
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
COMED_P2-2_116_GG-345R__2_FSA
CONTINGENCY 'COMED_P2-2_116_GG-345R__2_FSA'
 DISCONNECT BUS 270769   /*GOODINGS ;2R 345.0
 DISCONNECT BUS 918050   /*AA1-018 TAP  345.0
END
Bus AC 100.75 % 103.36 % 1568.0 STE 1620.69 44.2
CE ELWOOD ; R-GOODINGS ;2R 345.0 kV Ckt 1 line
270737 to 270769 ckt 1
COMED_P4_116-45-L11613_
CONTINGENCY 'COMED_P4_116-45-L11613_'
 DISCONNECT BUS 270770                             /*GOODINGS ;4B 345.0
 TRIP BRANCH FROM BUS 270666 TO BUS 270664 CKT 1   /*BLUE ISL ;BT 345.0 - BLUE ISL ; B 345.0
 TRIP BRANCH FROM BUS 270666 TO BUS 270926 CKT 1   /*BLUE ISL ;BT 345.0 - WILTON   ; B 345.0
 TRIP BRANCH FROM BUS 270770 TO BUS 270666 CKT 1   /*GOODINGS ;4B 345.0 - BLUE ISL ;BT 345.0
END
Breaker AC 102.89 % 105.55 % 1568.0 STE 1655.0 45.31
CE ELWOOD ; R-GOODINGS ;2R 345.0 kV Ckt 1 line
270737 to 270769 ckt 1
COMED_P4_116-45-TR84___
CONTINGENCY 'COMED_P4_116-45-TR84___'
 DISCONNECT BUS 270770                                          /*GOODINGS ;4B 345.0
 TRIP BRANCH FROM BUS 270770 TO BUS 271564 TO BUS 275368 CKT 1  /*GOODINGS ;4B 345.0 - GOODINGS ; B 138.0 - GOODINGS ;4C  34.5
END
Breaker AC 102.04 % 104.7 % 1568.0 STE 1641.69 45.33
AEP/NIPS 17STILLWELL-05DUMONT 345.0 kV Ckt 1 line
255113 to 243219 ckt 1
AEP_P4_#2978_05DUMONT 765_B
CONTINGENCY 'AEP_P4_#2978_05DUMONT 765_B'
 OPEN BRANCH FROM BUS 243206 TO' BUS 243207 CKT 1   /*05DUMONT     765.0 - 05GRNTWN     765.0
 OPEN BRANCH FROM BUS 243206 TO BUS 270644 CKT 1   /*05DUMONT     765.0 - WILTON   ;   765.0
END
Breaker AC 100.25 % 101.5 % 1409.0 B 1430.13 20.26
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
COMED_P4_116-45-L11614_
CONTINGENCY 'COMED_P4_116-45-L11614_'
 DISCONNECT BUS 270769                             /*GOODINGS ;2R 345.0
 TRIP BRANCH FROM BUS 270667 TO BUS 270665 CKT 1   /*BLUE ISL ;RT 345.0 - BLUE ISL ; R 345.0
 TRIP BRANCH FROM BUS 270667 TO BUS 270927 CKT 1   /*BLUE ISL ;RT 345.0 - WILTON   ; R 345.0
 TRIP BRANCH FROM BUS 270769 TO BUS 270667 CKT 1   /*GOODINGS ;2R 345.0 - BLUE ISL ;RT 345.0
END
Breaker AC 101.65 % 104.27 % 1568.0 STE 1634.89 44.19
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
COMED_P4_116-45-L9801_FSA
CONTINGENCY 'COMED_P4_116-45-L9801_FSA'
 DISCONNECT BUS 270769                             /*GOODINGS ;2R 345.0
 TRIP BRANCH FROM BUS 918050 TO BUS 270769 CKT 1   /*AA1-018 TAP  345.0 - GOODINGS ;2R 345.0
END
Breaker AC 100.79 % 103.41 % 1568.0 STE 1621.43 44.2
CE ELWOOD ; R-GOODINGS ;2R 345.0 kV Ckt 1 line
270737 to 270769 ckt 1
COMED_P1-2_345-L11620_B-S
CONTINGENCY 'COMED_P1-2_345-L11620_B-S'
 TRIP BRANCH FROM BUS 270736 TO BUS 270770 CKT 1   /*ELWOOD   ; B 345.0 - GOODINGS ;4B 345.0
END
Single AC 107.04 % 109.87 % 1568.0 STE 1722.74 44.39
CE ELWOOD ; R-GOODINGS ;2R 345.0 kV Ckt 1 line
270737 to 270769 ckt 1
Base Case Single AC 104.27 % 107.02 % 1201.0 A 1285.31 32.92
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
COMED_P1-2_345-L11622_R-S
CONTINGENCY 'COMED_P1-2_345-L11622_R-S'
 TRIP BRANCH FROM BUS 270737 TO BUS 270769 CKT 1   /*ELWOOD   ; R 345.0 - GOODINGS ;2R 345.0
END
Single AC 105.51 % 108.32 % 1568.0 STE 1698.48 44.19
CE ELWOOD ; B-GOODINGS ;4B 345.0 kV Ckt 1 line
270736 to 270770 ckt 1
Base Case Single AC 100.83 % 103.53 % 1201.0 A 1243.4 32.49

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
b3775.6 Perform sag study mitigation work on the Dumont-Stillwell 345 kV line $0
n5915 Elwood - Goodings B 345 kV line Reconductoring (AC1-204 driver) $30,831,127
n5916 Elwood - Goodings R 345 kV Line Reconductoring $31,529,018

Attachments

Conclusion

The Transition Sort load flow retool results indicate that AE1-070 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.