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AG1-257 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 10:54

Madisonburg Jct-Millheim 46 kV

8.3 MW Capacity / 19.9 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 AG1-257 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 APS zone Centre County, Pennsylvania. The installed facilities will have a total capability of 19.9 MW with 8.3 MW of this output being recognized by PJM as Capacity.

Project Information
Queue Number AG1-257
Project Name Madisonburg Jct-Millheim 46 kV
Developer Name Millheim Solar I, LLC
State Pennsylvania
County Centre
Transmission Owner APS
MFO 19.9 MW
MWE 19.9 MW
MWC 8.3 MW
Fuel Type Solar
Basecase Study Year 2024

Point of Interconnection

AG1-257 will interconnect with the FirstEnergy (APS) system by tapping the Centre Hall – Pleasant Gap 46 kV Line between Madisonburg Junction and Millheim Substation. The transmission line tap will be located approximately 2.8 miles from Madisonburg Junction and 1.6 miles from Millheim Substation. The IC will be responsible for acquiring all easements, properties, and permits that may be required to construct both the new interconnection line tap and the associated Attachment facilities. The IC will also be responsible for the rough grade of the property and an access road to the proposed site. The project will also require non-direct connection upgrades at Centre Hall and Pleasant Gap substations.

 

Attachment 1 shows a one-line diagram of the proposed primary direct connection facilities for the AG1-257 generation project to connect to the FirstEnergy (“FE”) transmission system. The IC will be responsible for constructing all of the facilities on its side of the POI, including the Attachment facilities which connect the generator to the FE transmission system.

Summer Peak Analysis

The Queue Project was evaluated as a 19.9 MW (Capacity 8.3 MW) injection in the APS 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
PENELEC AE1-071-POI-26ROXBURY 115.0 kV Ckt 1 line
938380 to 200520 ckt 1
PL:10:P45:102437
CONTINGENCY 'PL:10:P45:102437'
 DISCONNECT BUS 208004   /*JUNI BU1     230.0
 DISCONNECT BUS 208005   /*JUNI BU2     230.0
END
Breaker AC 174.5 % 175.95 % 160.0 B 281.52 2.42
AP/PENELEC AG1-473 TAP-26LEWISTWN 230.0 kV Ckt 1 line
966040 to 200513 ckt 1
PN-P2-3-PN-230-17B28
CONTINGENCY 'PN-P2-3-PN-230-17B28'
 DISCONNECT BRANCH FROM BUS 200677 TO BUS 200706 CKT 3   /*26NO MESHO   115.0 - 26N.MESHPN   230.0
 DISCONNECT BRANCH FROM BUS 200706 TO BUS 200708 CKT 1   /*26N.MESHPN   230.0 - 26OXBOW      230.0
 DISCONNECT BRANCH FROM BUS 200708 TO BUS 200709 CKT 1   /*26OXBOW      230.0 - 26OXBOW       34.5
 DISCONNECT BRANCH FROM BUS 200708 TO BUS 208009 CKT 1   /*26OXBOW      230.0 - LACK         230.0
END
Breaker AC 136.03 % 137.56 % 621.0 B 854.27 10.05
AP/PENELEC AG1-473 TAP-26LEWISTWN 230.0 kV Ckt 1 line
966040 to 200513 ckt 1
PN-P2_1-PN-230-997-DRT-063
CONTINGENCY 'PN-P2_1-PN-230-997-DRT-063'
 DISCONNECT BRANCH FROM BUS 200706 TO BUS 200708 CKT 1          /*26N.MESHPN   230.0 - 26OXBOW      230.0
 DISCONNECT BRANCH FROM BUS 200708 TO BUS 200709 CKT 1          /*26OXBOW      230.0 - 26OXBOW       34.5
 SET POSTCONTRATING 498 BRANCH FROM BUS 200706 TO BUS 200924 CKT 1 /*26N.MESHPN   230.0 - 26CANYON     230.0
 SET PRECONTRATING 498 BRANCH FROM BUS 200706 TO BUS 200924 CKT 1 /*26N.MESHPN   230.0 - 26CANYON     230.0
END
Breaker AC 136.02 % 137.56 % 621.0 B 854.23 10.05
PENELEC 26SHADE GP-AE1-071-POI 115.0 kV Ckt 1 line
200522 to 938380 ckt 1
PL:10:P45:102437
CONTINGENCY 'PL:10:P45:102437'
 DISCONNECT BUS 208004   /*JUNI BU1     230.0
 DISCONNECT BUS 208005   /*JUNI BU2     230.0
END
Breaker AC 130.75 % 132.22 % 160.0 B 211.54 2.43
PENELEC AE1-071-POI-26ROXBURY 115.0 kV Ckt 1 line
938380 to 200520 ckt 1
PL:10:P24:100548
CONTINGENCY 'PL:10:P24:100548'
 DISCONNECT BUS 208004   /*JUNI BU1     230.0
 DISCONNECT BUS 208005   /*JUNI BU2     230.0
END
Bus AC 174.5 % 175.95 % 160.0 B 281.52 2.42
PENELEC 26SHADE GP-AE1-071-POI 115.0 kV Ckt 1 line
200522 to 938380 ckt 1
PL:10:P24:100548
CONTINGENCY 'PL:10:P24:100548'
 DISCONNECT BUS 208004   /*JUNI BU1     230.0
 DISCONNECT BUS 208005   /*JUNI BU2     230.0
END
Bus AC 131.02 % 132.47 % 160.0 B 211.95 2.43
AP 01SHINGL-AG1-473 TAP 230.0 kV Ckt 1 line
235248 to 966040 ckt 1
PN-P2_1-PN-230-997-DRT-063
CONTINGENCY 'PN-P2_1-PN-230-997-DRT-063'
 DISCONNECT BRANCH FROM BUS 200706 TO BUS 200708 CKT 1          /*26N.MESHPN   230.0 - 26OXBOW      230.0
 DISCONNECT BRANCH FROM BUS 200708 TO BUS 200709 CKT 1          /*26OXBOW      230.0 - 26OXBOW       34.5
 SET POSTCONTRATING 498 BRANCH FROM BUS 200706 TO BUS 200924 CKT 1 /*26N.MESHPN   230.0 - 26CANYON     230.0
 SET PRECONTRATING 498 BRANCH FROM BUS 200706 TO BUS 200924 CKT 1 /*26N.MESHPN   230.0 - 26CANYON     230.0
END
Breaker AC 136.11 % 137.67 % 621.0 B 854.92 10.05

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
n6823.1 Replace 1033.5 ACSR 54/7 SCCIR (Bus taps, bus & line side disconnect leads, line risers) at Shingletown substation. $330,000
n6823.2 Replace circuit breaker and its CTs at Shingletown Substation. $610,000
n6823.3 Replace 1200 A bus & line side disconnect switches at Shingletown substation. $720,000
n6823.4 Replace 2.00 IPS AL Pipe SCCIR (Line & bus side breaker risers) at Shingletown substation. $162,816
n6823.5 Replace ZR relays at Shingletown substation. $1,628,156
n6823.6 Replace wave traps at Shingletown & Lewistown substations (APS/Penelec) $800,000
n8219 Reconductor 13.9 miles of transmission line on the AG1-473 (Shingletown) - Lewistown 230 kV Line. $59,794,920
n6822.2 Adjust relay settings at Lewistown $1,528,500
b3751 Rebuild 6.4 miles of the Roxbury - Shade Gap 115 kV line from Roxbury to the AE1-071 115 kV ring bus with single circuit 115 kV construction $15,030,000
b3752 Rebuild 7.2 miles of the Shade Gap - AE1-071 115 kV line section of the Roxbury - Shade Gap 115 kV line $17,430,000

Attachments

Conclusion

The Transition Sort load flow retool results indicate that AG1-257 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.