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AE2-044 Transition Sort Retool Results -- Qualifies for Expedited Process

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

Anaconda-Dunbar 115 kV

28.0 MW Capacity / 40.0 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, 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.

Eligible for Expedited Process:

The AE2-044 project has been determined to meet the initial screen to be eligible for the Expedited Process according to the Expedited Process Eligibility requirements in Tariff Part VII, Subpart B, section 304. Though your project initially screens as eligible for the Expedited Process, there are several conditions identified under Tariff Part VII, Subpart B, section 304 (B) that could shift your project from the Expedited Process into TC1. Please see "Expedited Process 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 to Note: 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.

Next Steps for your project:

Refreshed Retool for Projects in Expedited Process:

After the initial sorting retool, PJM will conduct a refreshed analysis of the projects in the Expedited Process with the Transition Cycle #1 projects lifted from the study case model. After this refreshed analysis (including load flow, short circuit and stability analysis), retooled System Impact Study reports can be delivered to the Project Developers. Once the project's Facilities Study report is completed (and no conditions exist that would require the project to shift to TC1, see "Expedited Process Rules" below), the final GIA will be tendered along with the Facilities Study report.

Expedited Process Rules:

Though your project initially screens to be eligible for the Expedited Process, there are several conditions identified under Tariff Part VII, Subpart B, section 304 (B) that could shift your project into TC1 until the final GIA is tendered.

  • If stability analysis or a sag study is completed during the expedited process, and it is determined that a project has an estimated Network Upgrade cost greater than $5,000,000, the project will be removed from the expedited process and shifted to Transition Cycle #1.
  • If it is determined during the Facilities Study that the cost of a Network Upgrade is now estimated to be greater than $5,000,000, the project will be removed from the expedited process and shifted to Transition Cycle #1.
  • 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.
  • If the interconnected Transmission Owner identifies the need for a Network Upgrade due to a violation of their criteria that is in excess of $5M, the project will be removed from the expedited process and shifted to Transition Cycle #1.

General

The Interconnection Customer (IC) has proposed an uprate to a planned/existing Solar generating facility located in the Dominion zone Edgecombe County, North Carolina. This project is an increase to the Interconnection Customer's original project, which will share the same point of interconnection. The AE2-044 queue position is a 40.0 MW uprate (28.0 MW Capacity uprate) to the previous project. The total installed facilities will have a capability of 120.0 MW.

Project Information
Queue Number AE2-044
Project Name Anaconda-Dunbar 115 kV
Developer Name Knee Branch Solar, LLC
State North Carolina
County Edgecombe
Transmission Owner Dominion
MFO 120.0 MW
MWE 40.0 MW
MWC 28.0 MW
Fuel Type Solar
Basecase Study Year 2022

Point of Interconnection

AE2-044 will connect to the AB1-081 project’s 34kV collector bus. The AB1-081 project interconnects with the Dominion transmission system as a tap of the Anaconda to Dunbar 115 kV line.

 

Summer Peak Analysis

The Queue Project was evaluated as a 40.0 MW (Capacity 28.0 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: 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.

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
CPLE/DVP 3BTLEBRO-3ROCKYMT115T 115.0 kV Ckt 1 line
314554 to 304223 ckt 1
DVP_P7-1: LN 2058-2181
CONTINGENCY 'DVP_P7-1: LN 2058-2181'
 OPEN BRANCH FROM BUS 304222 TO BUS 313845 CKT 1   /*6ROCKYMT230T 230.0 - 6HATHAWAY    230.0
 OPEN BRANCH FROM BUS 304226 TO BUS 314591 CKT 1   /*6PA-RMOUNT#4 230.0 - 6NASH        230.0
 OPEN BRANCH FROM BUS 313845 TO BUS 314591 CKT 1   /*6HATHAWAY    230.0 - 6NASH        230.0
 OPEN BUS 304226                                   /*6PA-RMOUNT#4 230.0
 OPEN BUS 314591                                   /*6NASH        230.0
END
Tower AC 237.72 % 245.78 % 164.0 B 403.08 14.14
CPLE/DVP 3BTLEBRO-3ROCKYMT115T 115.0 kV Ckt 1 line
314554 to 304223 ckt 1
DVP_P4-2: 205802
CONTINGENCY 'DVP_P4-2: 205802'
 OPEN BRANCH FROM BUS 304222 TO BUS 313845 CKT 1   /*6ROCKYMT230T 230.0 - 6HATHAWAY    230.0
 OPEN BRANCH FROM BUS 313844 TO BUS 313845 CKT 2   /*3HATHAWAY    115.0 - 6HATHAWAY    230.0
END
Breaker AC 123.26 % 131.84 % 164.0 B 216.22 13.58
CPLE/DVP 3BTLEBRO-3ROCKYMT115T 115.0 kV Ckt 1 line
314554 to 304223 ckt 1
DVP_P4-2: 216702
CONTINGENCY 'DVP_P4-2: 216702'
 OPEN BRANCH FROM BUS 313844 TO BUS 313845 CKT 1   /*3HATHAWAY    115.0 - 6HATHAWAY    230.0
 OPEN BRANCH FROM BUS 313845 TO BUS 314564 CKT 1   /*6HATHAWAY    230.0 - 6EDGECOM     230.0
END
Breaker AC 117.27 % 125.77 % 164.0 B 206.26 13.32
DVP 6LAKEVEW-6CAROLNA 230.0 kV Ckt 1 line
314583 to 314561 ckt 1
DVP_P4-2: 23872
CONTINGENCY 'DVP_P4-2: 23872'
 OPEN BRANCH FROM BUS 314282 TO BUS 314435 CKT 1   /*6CARSON      230.0 - 6SAPONY      230.0
 OPEN BRANCH FROM BUS 314282 TO BUS 314902 CKT 1   /*6CARSON      230.0 - 8CARSON      500.0
 OPEN BRANCH FROM BUS 314562 TO BUS 314563 CKT 1   /*3CLUBHSE     115.0 - 6CLUBHSE     230.0
 OPEN BUS 314435                                   /*6SAPONY      230.0
 OPEN BUS 314455                                   /*6CARSO_1     230.0
END
Breaker AC 143.32 % 144.6 % 433.0 C 626.12 5.72
DVP 6LAKEVEW-6CAROLNA 230.0 kV Ckt 1 line
314583 to 314561 ckt 1
DVP_P4-2: 238T2002
CONTINGENCY 'DVP_P4-2: 238T2002'
 OPEN BRANCH FROM BUS 314282 TO BUS 314331 CKT 1   /*6CARSON      230.0 - 6POE         230.0
 OPEN BRANCH FROM BUS 314282 TO BUS 314435 CKT 1   /*6CARSON      230.0 - 6SAPONY      230.0
 OPEN BRANCH FROM BUS 314329 TO BUS 314331 CKT 1   /*3POE         115.0 - 6POE         230.0
 OPEN BRANCH FROM BUS 314562 TO BUS 314563 CKT 1   /*3CLUBHSE     115.0 - 6CLUBHSE     230.0
 OPEN BUS 314435                                   /*6SAPONY      230.0
END
Breaker AC 143.02 % 144.3 % 433.0 C 624.82 5.71
DVP 6LAKEVEW-6CAROLNA 230.0 kV Ckt 1 line
314583 to 314561 ckt 1
DVP_P1-2: LN 238_AE2-033A
CONTINGENCY 'DVP_P1-2: LN 238_AE2-033A'
 OPEN BRANCH FROM BUS 314282 TO BUS 314435 CKT 1   /*6CARSON      230.0 - 6SAPONY      230.0
 OPEN BRANCH FROM BUS 314435 TO BUS 940480 CKT 1   /*6SAPONY      230.0 - AE2-033 TAP  230.0
 OPEN BRANCH FROM BUS 314562 TO BUS 314563 CKT 1   /*3CLUBHSE     115.0 - 6CLUBHSE     230.0
 OPEN BUS 314435                                   /*6SAPONY      230.0
END
Single AC 128.79 % 129.8 % 375.06 B 486.83 4.0
DVP 6LAKEVEW-6CAROLNA 230.0 kV Ckt 1 line
314583 to 314561 ckt 1
DVP_P1-2: LN 254-A
CONTINGENCY 'DVP_P1-2: LN 254-A'
 OPEN BRANCH FROM BUS 314563 TO BUS 924510 CKT 1   /*6CLUBHSE     230.0 - AB2-100 TAP  230.0
END
Single AC 118.33 % 119.44 % 375.06 B 447.97 4.2
DVP AB2-100 TAP-6CLUBHSE 230.0 kV Ckt 1 line
924510 to 314563 ckt 1
DVP_P1-2: LN 2141
CONTINGENCY 'DVP_P1-2: LN 2141'
 OPEN BRANCH FROM BUS 314561 TO BUS 314583 CKT 1   /*6CAROLNA     230.0 - 6LAKEVEW     230.0
END
Single AC 109.12 % 110.36 % 375.06 B 413.92 4.83
DVP AB2-100 TAP-6CLUBHSE 230.0 kV Ckt 1 line
924510 to 314563 ckt 1
DVP_P1-2: LN 246
CONTINGENCY 'DVP_P1-2: LN 246'
 OPEN BRANCH FROM BUS 314537 TO BUS 919140 CKT 1   /*6SUFFOLK     230.0 - AA1-138 TAP  230.0
 OPEN BRANCH FROM BUS 314569 TO BUS 314575 CKT 1   /*6EARLEYS     230.0 - 6NUCO TP     230.0
 OPEN BRANCH FROM BUS 314575 TO BUS 314590 CKT 1   /*6NUCO TP     230.0 - 6NUCOR       230.0
 OPEN BRANCH FROM BUS 314575 TO BUS 919140 CKT 1   /*6NUCO TP     230.0 - AA1-138 TAP  230.0
 OPEN BUS 314575                                   /*6NUCO TP     230.0
 OPEN BUS 314590                                   /*6NUCOR       230.0
 OPEN BUS 919140                                   /*AA1-138 TAP  230.0
END
Single AC 107.23 % 108.41 % 375.06 B 406.6 4.72
CPLE/DVP 6HATHAWAY-6ROCKYMT230T 230.0 kV Ckt 1 line
313845 to 304222 ckt 1
DVP_P1-2: LN 2181
CONTINGENCY 'DVP_P1-2: LN 2181'
 OPEN BRANCH FROM BUS 304226 TO BUS 314591 CKT 1   /*6PA-RMOUNT#4 230.0 - 6NASH        230.0
 OPEN BRANCH FROM BUS 313845 TO BUS 314591 CKT 1   /*6HATHAWAY    230.0 - 6NASH        230.0
 OPEN BUS 304226                                   /*6PA-RMOUNT#4 230.0
 OPEN BUS 314591                                   /*6NASH        230.0
END
Single AC 102.79 % 104.7 % 374.0 B 391.58 7.46
DVP 3HATHAWAY-6HATHAWAY 115.0/230.0 kV Ckt 1 transformer
313844 to 313845 ckt 1
DVP_P4-2: 101402-4
CONTINGENCY 'DVP_P4-2: 101402-4'
 OPEN BRANCH FROM BUS 313844 TO BUS 313845 CKT 2   /*3HATHAWAY    115.0 - 6HATHAWAY    230.0
 OPEN BRANCH FROM BUS 313844 TO BUS 314554 CKT 1   /*3HATHAWAY    115.0 - 3BTLEBRO     115.0
END
Breaker AC 86.85 % 101.86 % 292.7 C 298.14 40.0

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: 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.

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
n6618.1 Hathaway 115 kV Bus Split. $20,749
n6118 Upgrade the breaker leads at DVPs Battleboro terminal will bring the rating to 239/239/239 MVA (Limited by terminal equipment at Rocky Mount) $100,000
(TBD) Reconductor 8.5 miles RockyMt-Battleborro with single 795 ACSS-TW per phase, upgrade disconnect switches and CT ratios. $31,000,000
s2825.2 Rebuild line #55 Tarboro to Hart Mills. $3,500,000
s2825.1 Rebuild entire line#2167 Edgecombe NUG to Hathaway. $39,500,000
b3691 Reconductor approximately 1.4 miles of 230 kV line #2141 from Lakeview-Carolina to achieve a summer rating of 1047 MVA. $1,190,000
b3121 PJM Baseline Upgrade b3121: Rebuild Clubhouse-Lakeview 230 kV Line #254. $0
b3122 Rebuild Hathaway-Rocky Mount (Duke Energy Progress) 230 kV Line #2181 and Line #2058 with double circuit. $13,000,000
(TBD) Reconductor 4.73 miles with double 795 ACSS-TW per phase, both circuits, and replace terminal equipment (Hathaway - Rocky Mt 230kV) $27,000,000

Attachments

Export to CSV Download all tables in report

Uprate Chain
Project Project Status MFO MWE MWC Disposition
AB1-081 In Service 80.0 80.0 56.0 Not Part of Transition
AE2-044 Active 120.0 40.0 28.0 Expedited Process

Conclusion

The Transition Sort load flow retool results indicate that AE2-044 is eligible for the Expedited Process per PJM Tariff Part VII, Subpart B, section 304 (A). See next steps for your project in the "Introduction" section above.