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AG1-151 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 11:01

Endless Caverns 115 kV

100.0 MW Capacity / 100.0 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 AG1-151 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 Dominion zone Rockingham County, Virginia. This project is an increase to the Interconnection Customer's original project, which will share the same point of interconnection. The AG1-151 queue position is a 100.0 MW uprate (100.0 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 300.0 MW.

Project Information
Queue Number AG1-151
Project Name Endless Caverns 115 kV
Developer Name Prospect Power, LLC
State Virginia
County Rockingham
Transmission Owner Dominion
MFO 300.0 MW
MWE 100.0 MW
MWC 100.0 MW
Fuel Type Storage
Basecase Study Year 2024

Point of Interconnection

AG1-151 "Endless Caverns 115 kV" will interconnect with the Dominion transmission system as an uprate to AF1-028 “Endless Caverns 115 kV”, sharing the POI and Attachment Facilities.

 

Summer Peak Analysis

The Queue Project was evaluated as a 100.0 MW (Capacity 100.0 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 6CHARLVL-6PROFFIT 230.0 kV Ckt 1 line
314749 to 314772 ckt 1
DVP_P1-2: LN 553
CONTINGENCY 'DVP_P1-2: LN 553'
 OPEN BRANCH FROM BUS 314908 TO BUS 314910 CKT 1   /*8ELMONT      500.0 - 8CUNINGHAM   500.0
END
Single AC 107.21 % 108.73 % 550.84 B 598.94 8.16
DVP 6GROTOES-3GROTOES 230.0/115.0 kV Ckt 1 transformer
314803 to 314802 ckt 1
DVP_P7-1: LN 2017-2134-A
CONTINGENCY 'DVP_P7-1: LN 2017-2134-A'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314800 TO BUS 944070 CKT 1   /*6ENDLCAV     230.0 - AF1-075 TAP  230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 92.19 % 104.91 % 294.1 C 308.55 31.79
DVP 6GROTOES-3GROTOES 230.0/115.0 kV Ckt 1 transformer
314803 to 314802 ckt 1
DVP_P7-1: LN 2017-2134-B
CONTINGENCY 'DVP_P7-1: LN 2017-2134-B'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314805 TO BUS 314806 CKT 1   /*6E MARKET ST 230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 944070 TO BUS 314806 CKT 1   /*AF1-075 TAP  230.0 - 6HARSNBG     230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 92.1 % 104.79 % 294.1 C 308.18 31.79
DVP AE2-029 TAP-3ELKTON 115.0 kV Ckt 1 line
940450 to 313706 ckt 1
DVP_P7-1: LN 2017-2134-A
CONTINGENCY 'DVP_P7-1: LN 2017-2134-A'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314800 TO BUS 944070 CKT 1   /*6ENDLCAV     230.0 - AF1-075 TAP  230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 104.06 % 119.07 % 251.0 C 298.86 31.79
DVP AE2-029 TAP-3ELKTON 115.0 kV Ckt 1 line
940450 to 313706 ckt 1
DVP_P7-1: LN 2017-2134-B
CONTINGENCY 'DVP_P7-1: LN 2017-2134-B'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314805 TO BUS 314806 CKT 1   /*6E MARKET ST 230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 944070 TO BUS 314806 CKT 1   /*AF1-075 TAP  230.0 - 6HARSNBG     230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 103.95 % 118.88 % 251.0 C 298.38 31.79
DVP 3ELKTON-3MERCK5 115.0 kV Ckt 1 line
313706 to 314798 ckt 1
DVP_P7-1: LN 2017-2134-A
CONTINGENCY 'DVP_P7-1: LN 2017-2134-A'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314800 TO BUS 944070 CKT 1   /*6ENDLCAV     230.0 - AF1-075 TAP  230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 101.98 % 116.92 % 251.0 C 293.46 31.79
DVP 3ELKTON-3MERCK5 115.0 kV Ckt 1 line
313706 to 314798 ckt 1
DVP_P7-1: LN 2017-2134-B
CONTINGENCY 'DVP_P7-1: LN 2017-2134-B'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314805 TO BUS 314806 CKT 1   /*6E MARKET ST 230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 944070 TO BUS 314806 CKT 1   /*AF1-075 TAP  230.0 - 6HARSNBG     230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 101.88 % 116.73 % 251.0 C 293.0 31.79
DVP 3GROTOES-AE2-029 TAP 115.0 kV Ckt 1 line
314802 to 940450 ckt 1
DVP_P7-1: LN 2017-2134-A
CONTINGENCY 'DVP_P7-1: LN 2017-2134-A'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314800 TO BUS 944070 CKT 1   /*6ENDLCAV     230.0 - AF1-075 TAP  230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 99.47 % 114.47 % 251.0 C 287.32 31.79
DVP 3GROTOES-AE2-029 TAP 115.0 kV Ckt 1 line
314802 to 940450 ckt 1
DVP_P7-1: LN 2017-2134-B
CONTINGENCY 'DVP_P7-1: LN 2017-2134-B'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314805 TO BUS 314806 CKT 1   /*6E MARKET ST 230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 944070 TO BUS 314806 CKT 1   /*AF1-075 TAP  230.0 - 6HARSNBG     230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 99.38 % 114.28 % 251.0 C 286.83 31.79
DVP 3N SHEND-3ENDLCAV 115.0 kV Ckt 1 line
314809 to 314799 ckt 1
DVP_P7-1: LN 2017-2134-A
CONTINGENCY 'DVP_P7-1: LN 2017-2134-A'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314800 TO BUS 944070 CKT 1   /*6ENDLCAV     230.0 - AF1-075 TAP  230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 84.63 % 112.87 % 251.0 C 283.31 54.42
DVP 3N SHEND-3ENDLCAV 115.0 kV Ckt 1 line
314809 to 314799 ckt 1
DVP_P7-1: LN 2017-2134-B
CONTINGENCY 'DVP_P7-1: LN 2017-2134-B'
 OPEN BRANCH FROM BUS 314800 TO BUS 314805 CKT 1   /*6ENDLCAV     230.0 - 6E MARKET ST 230.0
 OPEN BRANCH FROM BUS 314805 TO BUS 314806 CKT 1   /*6E MARKET ST 230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 944070 TO BUS 314806 CKT 1   /*AF1-075 TAP  230.0 - 6HARSNBG     230.0
 OPEN BUS 314805                                   /*6E MARKET ST 230.0
END
Tower AC 84.37 % 112.39 % 251.0 C 282.09 54.42
DVP 6GROTOES-6HARSNBG 230.0 kV Ckt 1 line
314803 to 314806 ckt 1
DVP_P7-1: LN 253-2109
CONTINGENCY 'DVP_P7-1: LN 253-2109'
 OPEN BRANCH FROM BUS 314750 TO BUS 314806 CKT 1   /*6DAYTON      230.0 - 6HARSNBG     230.0
 OPEN BRANCH FROM BUS 314750 TO BUS 314817 CKT 1   /*6DAYTON      230.0 - 6VALLEY      230.0
 OPEN BRANCH FROM BUS 314806 TO BUS 314817 CKT 1   /*6HARSNBG     230.0 - 6VALLEY      230.0
 OPEN BUS 314750                                   /*6DAYTON      230.0
END
Tower AC 89.67 % 101.72 % 549.0 C 558.42 52.75

Light Load Analysis

The Queue Project was evaluated as a 100.0 MW (Capacity 100.0 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 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
DVP 6BREMO-6BREMODIST 230.0 kV Ckt 1 line
314747 to 313867 ckt 1
DVP_P1-2: LN 534
CONTINGENCY 'DVP_P1-2: LN 534'
 OPEN BRANCH FROM BUS 314907 TO BUS 314910 CKT 1                /*8DOOMS       500.0 - 8CUNINGHAM   500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
END
Single DC 115.57 % 116.33 % 678.68 B 789.51 7.32
DVP 6BREMODIST-6FORK UNION 230.0 kV Ckt 1 line
313867 to 313707 ckt 1
DVP_P1-2: LN 534
CONTINGENCY 'DVP_P1-2: LN 534'
 OPEN BRANCH FROM BUS 314907 TO BUS 314910 CKT 1                /*8DOOMS       500.0 - 8CUNINGHAM   500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
END
Single DC 114.54 % 115.3 % 678.68 B 782.52 7.32
DVP 6FORK UNION-AF2-397 TAP 230.0 kV Ckt 1 line
313707 to 961060 ckt 1
DVP_P1-2: LN 534
CONTINGENCY 'DVP_P1-2: LN 534'
 OPEN BRANCH FROM BUS 314907 TO BUS 314910 CKT 1                /*8DOOMS       500.0 - 8CUNINGHAM   500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
END
Single AC 100.93 % 101.74 % 661.76 B 673.27 6.98
DVP AF2-397 TAP-6MTEAGLE 230.0 kV Ckt 1 line
961060 to 314765 ckt 1
DVP_P1-2: LN 534
CONTINGENCY 'DVP_P1-2: LN 534'
 OPEN BRANCH FROM BUS 314907 TO BUS 314910 CKT 1                /*8DOOMS       500.0 - 8CUNINGHAM   500.0
 SET POSTCONTRATING 2858 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
 SET PRECONTRATING 2650 BRANCH FROM BUS 314907 TO BUS 314926 CKT 1 /*8DOOMS       500.0 - 8VALLEY      500.0
END
Single AC 100.95 % 101.76 % 661.76 B 673.41 6.98

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
n7627 Reconductor 115 kV line #119 from Elkton DP to Merck $1,482,000
n7633 Reconductor 115 kV Line #119 from Elkton to AE2-029 Tap. $3,186,000
n7632 Reconductor 115 kV Line 118 from N. Shenanddah to Endless Cavern. $4,452,000
n7629 Grottoes substation: 230/115 kV transformer Addition $6,000,000
n7628 Reconductor 115 kV Line #119 from Grottoes to AE2-029 Tap. $2,964,000
n5873 Rebuild 0.16 miles of Line 2028 from Bremo to Bremo Dist with 2-636 ACSR. $500,000
n7580 Rebuild 8.72 miles of 230 kV Line 2054 from Charlottesville to Profit D.P. with 2-636 ACSR 150 C $21,800,000
n7567 Rebuild 1.63 miles of 230 kV Line 2028 from Fork Union to Bremo Dist with 2-795 ACSR (26/7) 150 C $2,445,000
n6185.2 Rebuild 17.42 miles of 230 kV Line 2028 from Fork Union to Mount Eagle with 2-636 ACSR. $26,130,000
n7584 Rebuild 10.55 miles of 230 kV Line 260 from Grottoes to Harrisonburg with 2-636 ACSR 150 C. $15,825,000

Attachments

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Uprate Chain
Project Project Status MFO MWE MWC Disposition
AF1-028 Engineering & Procurement 200.0 200.0 200.0 Not Part of Transition
AG1-151 Active 300.0 100.0 100.0 Transition Cycle 1

Conclusion

The Transition Sort load flow retool results indicate that AG1-151 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.