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AG1-133 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

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

North Anna-Ladysmith 500 kV

76.8 MW Capacity / 128.0 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 AG1-133 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 Spotsylvania County, Virginia. The installed facilities will have a total capability of 128.0 MW with 76.8 MW of this output being recognized by PJM as Capacity.

Project Information
Queue Number AG1-133
Project Name North Anna-Ladysmith 500 kV
Developer Name Virginia Electric & Power Company
State Virginia
County Spotsylvania
Transmission Owner Dominion
MFO 128.0 MW
MWE 128.0 MW
MWC 76.8 MW
Fuel Type Solar
Basecase Study Year 2024

Point of Interconnection

AG1-133 "North Anna-Ladysmith 500 kV" will interconnect with the Dominion transmission system. The primary POI will be a newly constructed 500 kV three breaker ring bus located on the line between the North Anna substation and Ladysmith substation.

 

Summer Peak Analysis

The Queue Project was evaluated as a 128.0 MW (Capacity 76.8 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 AG1-133 TAP-8LADYSMITH 500.0 kV Ckt 1 line
962840 to 314911 ckt 1
DVP_P1-2: LN 594
CONTINGENCY 'DVP_P1-2: LN 594'
 OPEN BRANCH FROM BUS 314916 TO BUS 314934 CKT 1                /*8MORRSVL     500.0 - 8SPOTSYL     500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314900 TO BUS 314916 CKT 1 /*8BRISTER     500.0 - 8MORRSVL     500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314918 TO BUS 314934 CKT 1 /*8NO ANNA     500.0 - 8SPOTSYL     500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314900 TO BUS 314916 CKT 1 /*8BRISTER     500.0 - 8MORRSVL     500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314918 TO BUS 314934 CKT 1 /*8NO ANNA     500.0 - 8SPOTSYL     500.0
END
Single AC 106.51 % 108.4 % 3218.56 B 3488.82 55.99
DVP 8NO ANNA-8SPOTSYL 500.0 kV Ckt 1 line
314918 to 314934 ckt 1
DVP_P1-2: LN 575-A
CONTINGENCY 'DVP_P1-2: LN 575-A'
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Single AC 112.4 % 112.84 % 3220.44 B 3634.07 46.15
DVP 8SPOTSYL-8MORRSVL 500.0 kV Ckt 1 line
314934 to 314916 ckt 1
DVP_P1-2: LN 575-A
CONTINGENCY 'DVP_P1-2: LN 575-A'
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Single AC 109.73 % 110.47 % 3220.44 B 3557.46 44.26
DVP AG1-133 TAP-8LADYSMITH 500.0 kV Ckt 1 line
962840 to 314911 ckt 1
DVP_P1-2: LN 573
CONTINGENCY 'DVP_P1-2: LN 573'
 OPEN BRANCH FROM BUS 314918 TO BUS 314934 CKT 1                /*8NO ANNA     500.0 - 8SPOTSYL     500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314916 TO BUS 314934 CKT 1 /*8MORRSVL     500.0 - 8SPOTSYL     500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314916 TO BUS 314934 CKT 1 /*8MORRSVL     500.0 - 8SPOTSYL     500.0
END
Single AC 110.52 % 111.1 % 3218.56 B 3575.95 57.18
DVP 8SPOTSYL-8MORRSVL 500.0 kV Ckt 1 line
314934 to 314916 ckt 1
DVP_P4-2: 568T575
CONTINGENCY 'DVP_P4-2: 568T575'
 OPEN BRANCH FROM BUS 314911 TO BUS 314922 CKT 1   /*8LADYSMITH   500.0 - 8POSSUM      500.0
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Breaker AC 121.36 % 122.02 % 3940.0 C 4807.63 74.27
DVP 8SPOTSYL-8MORRSVL 500.0 kV Ckt 1 line
314934 to 314916 ckt 1
DVP_P4-2: H1T575
CONTINGENCY 'DVP_P4-2: H1T575'
 OPEN BRANCH FROM BUS 314196 TO BUS 314911 CKT 1   /*6LADYSMITH   230.0 - 8LADYSMITH   500.0
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Breaker AC 115.91 % 116.54 % 3940.0 C 4591.79 73.75
DVP 8NO ANNA-8SPOTSYL 500.0 kV Ckt 1 line
314918 to 314934 ckt 1
DVP_P4-2: 568T575
CONTINGENCY 'DVP_P4-2: 568T575'
 OPEN BRANCH FROM BUS 314911 TO BUS 314922 CKT 1   /*8LADYSMITH   500.0 - 8POSSUM      500.0
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Breaker AC 115.4 % 116.06 % 3940.0 C 4572.96 77.36
DVP AG1-133 TAP-8LADYSMITH 500.0 kV Ckt 1 line
962840 to 314911 ckt 1
DVP_P4-2: 515T573
CONTINGENCY 'DVP_P4-2: 515T573'
 OPEN BRANCH FROM BUS 314918 TO BUS 314934 CKT 1   /*8NO ANNA     500.0 - 8SPOTSYL     500.0
 OPEN BRANCH FROM BUS 314934 TO BUS 926730 CKT 1   /*8SPOTSYL     500.0 - AC1-158 MAIN 500.0
 OPEN BUS 926730                                   /*AC1-158 MAIN 500.0
 OPEN BUS 926731                                   /*AC1-158 COL1  34.5
 OPEN BUS 926732                                   /*AC1-158 COL2  34.5
 OPEN BUS 926733                                   /*AC1-158 COL3  34.5
 OPEN BUS 926734                                   /*AC1-158 COL4  34.5
 OPEN BUS 926735                                   /*AC1-158 TER1  13.8
 OPEN BUS 926736                                   /*AC1-158 TER2  13.8
 OPEN BUS 926737                                   /*AC1-158 C1     0.4
 OPEN BUS 926738                                   /*AC1-158 C2     0.4
 OPEN BUS 926739                                   /*AC1-158 E1     0.4
 OPEN BUS 926740                                   /*AC1-158 E2     0.4
END
Breaker AC 111.13 % 112.0 % 3938.0 C 4410.4 95.28
DVP AG1-133 TAP-8LADYSMITH 500.0 kV Ckt 1 line
962840 to 314911 ckt 1
DVP_P4-2: H1T573
CONTINGENCY 'DVP_P4-2: H1T573'
 OPEN BRANCH FROM BUS 314755 TO BUS 314934 CKT 1   /*3SPOTSYL     115.0 - 8SPOTSYL     500.0
 OPEN BRANCH FROM BUS 314918 TO BUS 314934 CKT 1   /*8NO ANNA     500.0 - 8SPOTSYL     500.0
END
Breaker AC 110.67 % 111.57 % 3938.0 C 4393.47 95.36
DVP 8NO ANNA-8SPOTSYL 500.0 kV Ckt 1 line
314918 to 314934 ckt 1
DVP_P4-2: H1T575
CONTINGENCY 'DVP_P4-2: H1T575'
 OPEN BRANCH FROM BUS 314196 TO BUS 314911 CKT 1   /*6LADYSMITH   230.0 - 8LADYSMITH   500.0
 OPEN BRANCH FROM BUS 314911 TO BUS 962840 CKT 1   /*8LADYSMITH   500.0 - AG1-133 TAP  500.0
END
Breaker AC 110.56 % 111.24 % 3940.0 C 4383.01 76.9

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
n7611 Rebuild 9.1 miles of 500 kV Line 575 from Ladysmith to AG1-133 Tap with 3-1351.5 113C ACSR. Replace wave Trap, Lien lead at Ladysmith terminal. $28,510,000
n6160 Rebuild 18.75 miles of 500 kV Line 594 from Spotsylvania to Morrisvile with 3-1351.5 113C ACSR. $58,125,000
n6132 Rebuild 14.02 miles of 500 kV Line 573 from North Anna to Spotsylvania with 3-1351.5 113C ACSR. $43,462,000

Attachments

Conclusion

The Transition Sort load flow retool results indicate that AG1-133 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.