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AG1-127 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 10:43

Crego Rd 138 kV

57.1 MW Capacity / 95.1 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 AG1-127 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 ComEd zone DeKalb County, Illinois. This project is an increase to the Interconnection Customer's original project, which will share the same point of interconnection. The AG1-127 queue position is a 95.1 MW uprate (57.1 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 190.0 MW.

Project Information
Queue Number AG1-127
Project Name Crego Rd 138 kV
Developer Name Leeward Renewable Energy Development, LLC
State Illinois
County DeKalb
Transmission Owner ComEd
MFO 190.0 MW
MWE 95.1 MW
MWC 57.1 MW
Fuel Type Solar
Basecase Study Year 2024

Point of Interconnection

AG1-127 will interconnect on the ComEd transmission system at the Crego Road 18 kV.

Summer Peak Analysis

The Queue Project was evaluated as a 95.1 MW (Capacity 57.1 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
AEP/CE GREENACRE; T-05OLIVE 345.0 kV Ckt 1 line
270771 to 243229 ckt 1
EXT_P12:345:NIPS:34513:17BURR_OAK:17SCHAHFER:1-A
CONTINGENCY 'EXT_P12:345:NIPS:34513:17BURR_OAK:17SCHAHFER:1-A'
 OPEN BRANCH FROM BUS 255101 TO BUS 991245 CKT 1   /*17BURR_OAK   345.0 - J1684 TAP    345.0
END
Single AC 99.92 % 100.22 % 971.0 B 973.09 3.58
CE ELECT JCT; B-LOMBARD ; B 345.0 kV Ckt 1 line
270730 to 270812 ckt 1
Base Case Single AC 99.96 % 100.39 % 1201.0 A 1205.72 5.35
CE AE2-341 TAP-W PLANO ; R 138.0 kV Ckt 1 line
943120 to 272803 ckt 1
COMED_P4_156-38-TR81___
CONTINGENCY 'COMED_P4_156-38-TR81___'
 REMOVE SWSHUNT FROM BUS 271193                    /*CHERRY VA; R 138.0
 TRIP BRANCH FROM BUS 271193 TO BUS 271387 CKT 1   /*CHERRY VA; R 138.0 - E ROCKFOR;RT 138.0
 TRIP BRANCH FROM BUS 271193 TO BUS 271581 CKT 1   /*CHERRY VA; R 138.0 - ESS B200 ; R 138.0
 TRIP BRANCH FROM BUS 271193 TO BUS 272517 CKT 1   /*CHERRY VA; R 138.0 - STILLMAN ;RT 138.0
 TRIP BRANCH FROM BUS 275165 TO BUS 270695 CKT 1   /*CHERRY VA;1M 138.0 - CHERRY VA; R 345.0
 TRIP BRANCH FROM BUS 275165 TO BUS 271193 CKT 1   /*CHERRY VA;1M 138.0 - CHERRY VA; R 138.0
 TRIP BRANCH FROM BUS 275165 TO BUS 275265 CKT 1   /*CHERRY VA;1M 138.0 - CHERRY VA;1C  34.5
END
Breaker AC 103.85 % 111.24 % 459.0 STE 510.61 35.37
CE AE2-341 TAP-W PLANO ; R 138.0 kV Ckt 1 line
943120 to 272803 ckt 1
COMED_P4_111-38-TR82___
CONTINGENCY 'COMED_P4_111-38-TR82___'
 CLOSE LINE FROM BUS 272114 TO BUS 272115 CKT 1        /*N AURORA ; B 138.0 - N AURORA ; R 138.0
 DISCONNECT BUS 271560                                 /*CREGO RD ;BT 138.0
 DISCONNECT BUS 272522                                 /*SUGAR GRV; B 138.0
 MOVE 100 PERCENT LOAD FROM BUS 271586 TO BUS 271587   /*ESS W541 ; B 138.0 - ESS W541 ; R 138.0
 MOVE 100 PERCENT LOAD FROM BUS 272522 TO BUS 272523   /*SUGAR GRV; B 138.0 - SUGAR GRV; R 138.0
 REMOVE SWSHUNT FROM BUS 271390                        /*ELECT JCT; B 138.0
 TRIP BRANCH FROM BUS 271390 TO BUS 271586 CKT 1       /*ELECT JCT; B 138.0 - ESS W541 ; B 138.0
 TRIP BRANCH FROM BUS 271390 TO BUS 272724 CKT 1       /*ELECT JCT; B 138.0 - WARRENVIL;BT 138.0
 TRIP BRANCH FROM BUS 271390 TO BUS 275239 CKT 1       /*ELECT JCT; B 138.0 - ELECT JCT;2M 138.0
 TRIP BRANCH FROM BUS 275239 TO BUS 270730 CKT 1       /*ELECT JCT;2M 138.0 - ELECT JCT; B 345.0
 TRIP BRANCH FROM BUS 275239 TO BUS 275339 CKT 1       /*ELECT JCT;2M 138.0 - ELECT JCT;2C  34.5
END
Breaker AC 97.58 % 104.81 % 459.0 STE 481.09 34.51
CE WILTON ;4M-WILTON ; 345.0/765.0 kV Ckt 1 transformer
275233 to 270644 ckt 1
COMED_P4_023-65-BT3-4__
CONTINGENCY 'COMED_P4_023-65-BT3-4__'
 TRIP BRANCH FROM BUS 270607 TO BUS 270630 CKT 1   /*COLLINS  ;   765.0 - PLANO    ;   765.0
 TRIP BRANCH FROM BUS 275168 TO BUS 270607 CKT 1   /*COLLINS  ;2M 345.0 - COLLINS  ;   765.0
 TRIP BRANCH FROM BUS 275168 TO BUS 270697 CKT 1   /*COLLINS  ;2M 345.0 - COLLINS  ; R 345.0
 TRIP BRANCH FROM BUS 275168 TO BUS 275268 CKT 1   /*COLLINS  ;2M 345.0 - COLLINS  ;2C  33.0
END
Breaker AC 100.0 % 100.03 % 1469.0 STE 1469.39 9.34
CE MONTGOMER;RT-OSWEGO ; R 138.0 kV Ckt 1 line
272027 to 272203 ckt 1
COMED_P4_167-38-TR81___
CONTINGENCY 'COMED_P4_167-38-TR81___'
 DISCONNECT BUS 272250                                          /*PLANO    ; B 138.0
 TRIP BRANCH FROM BUS 270846 TO BUS 270730 CKT 1                /*PLANO    ; B 345.0 - ELECT JCT; B 345.0
 TRIP BRANCH FROM BUS 270846 TO BUS 272278 TO BUS 275354 CKT 1  /*PLANO    ; B 345.0 - PLANO;1I     138.0 - PLANO;1C      34.5
 TRIP BRANCH FROM BUS 272250 TO BUS 272278 CKT 1                /*PLANO    ; B 138.0 - PLANO;1I     138.0
 TRIP BRANCH FROM BUS 272250 TO BUS 272278 CKT 2                /*PLANO    ; B 138.0 - PLANO;1I     138.0
END
Breaker AC 98.43 % 105.5 % 266.0 STE 280.62 19.31
CE MONTGOMER;RT-OSWEGO ; R 138.0 kV Ckt 1 line
272027 to 272203 ckt 1
COMED_P2-2_167_PL-138B__2
CONTINGENCY 'COMED_P2-2_167_PL-138B__2'
 DISCONNECT BUS 272250   /*PLANO    ; B 138.0
END
Bus AC 95.23 % 102.07 % 275.0 C 280.7 19.3
CE WATERMAN ;3B-WATERMAN ; B 138.0 kV Ckt 1 line
272730 to 272728 ckt 1
COMED_P7-1_138-L15507_B-R_+_138-L15508_R-R-B
CONTINGENCY 'COMED_P7-1_138-L15507_B-R_+_138-L15508_R-R-B'
 MOVE 100 PERCENT LOAD FROM BUS 271330 TO BUS 271331   /*DIXON    ;7B 138.0 - DIXON    ;8R 138.0
 TRIP BRANCH FROM BUS 271331 TO BUS 271333 CKT 1       /*DIXON    ;8R 138.0 - DIXON    ; R 138.0
 TRIP BRANCH FROM BUS 272097 TO BUS 271331 CKT 1       /*NELSON   ;RT 138.0 - DIXON    ;8R 138.0
 TRIP BRANCH FROM BUS 272097 TO BUS 272095 CKT 1       /*NELSON   ;RT 138.0 - NELSON   ; R 138.0
 TRIP BRANCH FROM BUS 272505 TO BUS 272097 CKT 1       /*SCHAUFF R; R 138.0 - NELSON   ;RT 138.0
 TRIP BRANCH FROM BUS 961010 TO BUS 272094 CKT 1       /*AF2-392 TAP  138.0 - NELSON   ; B 138.0
END
Tower AC 95.13 % 101.64 % 539.0 C 547.82 15.77

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
b3775.1 Swap the NIPSCO Green Acre Tap towers from the St. John-Green Acres-Olive 345 kV line $0
s2631 NextEra review required: Acquired from ComEd. NextEra section SE rating is 1091 MVA $0
n7023.1 Reconductor Electric Junction - Lombard L11124 345 kV Line $14,600,000
n8388 Montgomery - Oswego Reconductor $1,500,000
n6779 Plano 138 KV re-conductor a portion of the line $5,600,000
(TBD) Waterman 138kV L11301 - re-conductor the line, replace a line trap, upgrade station conductor at both line terminals and 2-138kV disconnect switches. $15,400,000
n6779.1 New 138kV line from TSS 167 Plano to AE2-341 Interconnection Substation. $34,000,000
n8379 Wilton Center - Install 3rd Transformer $38,000,000

Attachments

Conclusion

The Transition Sort load flow retool results indicate that AG1-127 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.