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AG1-531 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 10:45

Poolesville-Winchester 230 kV

32.4 MW Capacity / 54.0 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 AG1-531 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 Isle of Wight County, Virginia. The installed facilities will have a total capability of 54.0 MW with 32.4 MW of this output being recognized by PJM as Capacity.

Project Information
Queue Number AG1-531
Project Name Poolesville-Winchester 230 kV
Developer Name TCE Virginia Development, LLC
State Virginia
County Isle of Wight
Transmission Owner Dominion
MFO 54.0 MW
MWE 54.0 MW
MWC 32.4 MW
Fuel Type Solar
Basecase Study Year 2024

Point of Interconnection

AG1-531 will interconnect with the Dominion transmission system. The POI will be a newly constructed 230 kV three breaker ring bus located on the line between the Poolesville substation and Winchester substation.

 

Summer Peak Analysis

The Queue Project was evaluated as a 54.0 MW (Capacity 32.4 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
DVP 6HOPEWLL-6CHESTF A 230.0 kV Ckt 1 line
314303 to 314286 ckt 1
DVP_P1-2: LN 211
CONTINGENCY 'DVP_P1-2: LN 211'
 OPEN BRANCH FROM BUS 314287 TO BUS 314303 CKT 1                /*6CHESTF B    230.0 - 6HOPEWLL     230.0
 SET POSTCONTRATING 876 BRANCH FROM BUS 314269 TO BUS 314303 CKT 1 /*6PRGEORG     230.0 - 6HOPEWLL     230.0
 SET PRECONTRATING 797 BRANCH FROM BUS 314269 TO BUS 314303 CKT 1 /*6PRGEORG     230.0 - 6HOPEWLL     230.0
END
Single AC 158.04 % 159.07 % 449.32 B 714.73 4.77
DVP 6HOPEWLL-6CHESTF B 230.0 kV Ckt 1 line
314303 to 314287 ckt 1
DVP_P1-2: LN 228
CONTINGENCY 'DVP_P1-2: LN 228'
 OPEN BRANCH FROM BUS 314286 TO BUS 314303 CKT 1   /*6CHESTF A    230.0 - 6HOPEWLL     230.0
END
Single AC 151.62 % 152.1 % 449.32 B 683.43 5.28
DVP 8SURRY-8CHCKAHM 500.0 kV Ckt 1 line
314924 to 314903 ckt 1
DVP_P1-2: LN 576
CONTINGENCY 'DVP_P1-2: LN 576'
 OPEN BRANCH FROM BUS 314914 TO BUS 314918 CKT 1                /*8MDLTHAN     500.0 - 8NO ANNA     500.0
 SET POSTCONTRATING 3118 BRANCH FROM BUS 314902 TO BUS 314914 CKT 1 /*8CARSON      500.0 - 8MDLTHAN     500.0
 SET PRECONTRATING 2858 BRANCH FROM BUS 314902 TO BUS 314914 CKT 1 /*8CARSON      500.0 - 8MDLTHAN     500.0
END
Single AC 99.85 % 100.12 % 2442.12 B 2444.98 7.2
DVP 6HOPEWLL-6CHESTF A 230.0 kV Ckt 1 line
314303 to 314286 ckt 1
DVP_P4-2: 211T2124
CONTINGENCY 'DVP_P4-2: 211T2124'
 OPEN BRANCH FROM BUS 314269 TO BUS 314291 CKT 1   /*6PRGEORG     230.0 - 3PRGEORG     115.0
 OPEN BRANCH FROM BUS 314269 TO BUS 314303 CKT 1   /*6PRGEORG     230.0 - 6HOPEWLL     230.0
 OPEN BRANCH FROM BUS 314287 TO BUS 314303 CKT 1   /*6CHESTF B    230.0 - 6HOPEWLL     230.0
 OPEN BUS 314269                                   /*6PRGEORG     230.0
END
Breaker AC 171.85 % 173.01 % 549.0 C 949.84 9.1
DVP 6HOPEWLL-6CHESTF B 230.0 kV Ckt 1 line
314303 to 314287 ckt 1
DVP_P4-2: 56372
CONTINGENCY 'DVP_P4-2: 56372'
 OPEN BRANCH FROM BUS 314282 TO BUS 314902 CKT 1   /*6CARSON      230.0 - 8CARSON      500.0
 OPEN BRANCH FROM BUS 314902 TO BUS 314914 CKT 1   /*8CARSON      500.0 - 8MDLTHAN     500.0
END
Breaker AC 195.54 % 196.52 % 549.0 C 1078.92 6.38
DVP 6PRGEORG-3PRGEORG 230.0/115.0 kV Ckt 1 transformer
314269 to 314291 ckt 1
DVP_P7-1: LN 211-228
CONTINGENCY 'DVP_P7-1: LN 211-228'
 OPEN BRANCH FROM BUS 314286 TO BUS 314303 CKT 1   /*6CHESTF A    230.0 - 6HOPEWLL     230.0
 OPEN BRANCH FROM BUS 314287 TO BUS 314303 CKT 1   /*6CHESTF B    230.0 - 6HOPEWLL     230.0
END
Tower AC 142.46 % 143.64 % 287.5 C 412.96 4.12
DVP 6SURRY-6CHCKTUK 230.0 kV Ckt 1 line
314538 to 314522 ckt 1
DVP_P7-1: LN 223-226
CONTINGENCY 'DVP_P7-1: LN 223-226'
 OPEN BRANCH FROM BUS 314453 TO BUS 314484 CKT 1   /*6CHRHLND     230.0 - 6HARBORV226  230.0
 OPEN BRANCH FROM BUS 314475 TO BUS 314514 CKT 1   /*6HARBORV     230.0 - 6YADKIN      230.0
 OPEN BRANCH FROM BUS 314475 TO BUS 314533 CKT 1   /*6HARBORV     230.0 - 6SMITFLD     230.0
 OPEN BRANCH FROM BUS 314484 TO BUS 314523 CKT 1   /*6HARBORV226  230.0 - 6CRITTDN     230.0
 OPEN BRANCH FROM BUS 314523 TO BUS 314538 CKT 1   /*6CRITTDN     230.0 - 6SURRY       230.0
 OPEN BRANCH FROM BUS 314533 TO BUS 314538 CKT 1   /*6SMITFLD     230.0 - 6SURRY       230.0
 OPEN BUS 314475                                   /*6HARBORV     230.0
 OPEN BUS 314484                                   /*6HARBORV226  230.0
 OPEN BUS 314523                                   /*6CRITTDN     230.0
 OPEN BUS 314533                                   /*6SMITFLD     230.0
 OPEN BUS 316258                                   /*AE1-162 C    230.0
 OPEN BUS 939312                                   /*AE1-162 E    230.0
END
Tower AC 100.42 % 101.54 % 830.0 C 842.75 9.47
DVP AG1-531 TAP-6WINCHST 230.0 kV Ckt 1 line
966610 to 314421 ckt 1
DVP_P7-1: LN 240-2197-A
CONTINGENCY 'DVP_P7-1: LN 240-2197-A'
 OPEN BRANCH FROM BUS 314303 TO BUS 925330 CKT 2   /*6HOPEWLL     230.0 - AB2-190 TAP  230.0
 OPEN BRANCH FROM BUS 314303 TO BUS 935160 CKT 1   /*6HOPEWLL     230.0 - AD1-151 TAP  230.0
END
Tower AC 96.61 % 100.85 % 671.0 C 676.71 29.18

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
n7624 Rebuild 23.36 miles of 230 kV Line 290 from Surry to Chuckatuck with 2-636 ACSR. $35,040,000
b3694.12 Upgrade equipment at Chesterfield substation to not limit ratings on Lines 211 and 228. $0
b3694.13 Upgrade equipment at Hopewell substation to not limit ratings on Lines 211 and 228. $0
b2922 PJM Baseline Upgrade b2922. Rebuild 8 of 11 miles of 230kV Lines #211 $0
b3694.10 Reconductor approximately 2.9 miles of 230 kV Line #211 Chesterfield Hopewell to achieve a minimum summer emergency rating of 1046 MVA. $0
n8056 Wreck and rebuild the existing 115 kV Line and Add new 230 kV Circuit $32,493,499
n8304 Rebuild 17.5 miles of 230 kV Line 214 from AG1-531 Tap to Winchester with 2-636 ACSR 150 C $43,750,000
n6324 Replace Terminal Equipment at Surry and Chickahominy Substations $4,000,000

Attachments

Conclusion

The Transition Sort load flow retool results indicate that AG1-531 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.