NYISO/PJM - Focused Study by wG574Q4

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									NYISO/PJM - Focused Study



Northeast Coordinated System Plan
IPSAC09
June 30, 2009
Study Objective

• The objective of the study is to analyze the NYISO / PJM interface.
  The study will specifically look at the Southeastern New York / New
  Jersey interface for the year 2013.

• The study will consist of reliability analysis that includes voltage and
  thermal testing and market efficiency analysis that includes
  production cost simulations.

• Develop a consistent base case for NCSP09 work that includes
  updated representation of ISO-NE, NYISO and PJM.




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NYISO/PJM - STUDY SCOPE
NYISO/PJM Focused Study

• Reliability Analysis (Completed)
   – N-1-1 thermal analysis for all 230 kV and above facilities.
   – Generator deliverability testing of PJM generation while
     monitoring adjacent area facilities.
   – Load deliverability thermal analysis simulating peak summer
     conditions under a capacity emergency in the combined Public
     Service-North/RECO / Southeastern NY system.
• Reliability Analysis (Remaining to be completed)
   – Perform sensitivity analysis on credible generation retirement
     scenarios for critical transmission contingencies identified above.
   – Develop potential transmission overlay options to resolve the
     issues identified in the reliability analysis.




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    NYISO/PJM Focused Study - Reliability

• All 100 kV and greater facilities and all tie lines to neighboring systems
  will be monitored.
• Contingency analysis includes all 230 kV and greater facilities in ISO-
  NE, NYISO and PJM as well as all tie lines to neighboring systems.
• N-1-1
   – Standard NERC category C3 test.
       (http://www.nerc.com/files/TPL-003-0.pdf)
• Generator Deliverability
    PJM generation has been tested using the procedures detailed in
       manual 14B.
      (http://www.pjm.com/documents/~/media/documents/manuals/m14b.ashx )
•   Load Deliverability
      Public Service-North and Rockland Electric – PJM
      Area G, H, I, J and K (Hudson Valley, ConEd and LIPA) – NYISO


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ISO-NE/NYISO/PJM - Base Case Assumption
NYISO/PJM Focused Study – Topology
Assumptions
• Unless indicated otherwise power flow models for world load,
  capacity and topology will be based on the most recent ERAG
  MMWG power flow base case.

• PJM topology is a Summer 2013 base case – updated with RTEP
  upgrades approved as part of the 2008 RTEP plan.

• NYISO topology is based on 2009 RNA system model for the year
  2013.

• ISO-NE topology is based on RSP 08.

• Thermal and voltage criteria is consistent with those used in planning
  for PJM ,NYISO and ISO-NE.




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Merchant Transmission Projects

• Includes new ties between New York and PJM
   – Neptune project (PJM Queue G07_MTX) modeled at 685 MW
     exporting to LIPA according to its firm withdrawal rights.
   – VFT (PJM Queue G22_MTX) modeled at 330 MW exporting to
     ConEd according to its firm withdrawal rights.
   – Hudson Transmission Partners (PJM Queue O66) modeled at
     670 MW exporting to ConEd’s 49th Street Substation.
• Cross Sound Cable will be modeled consistent with 2009 RNA.




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NYISO/PJM Focused Study - Generation
Assumptions
• All existing generation expected to be in service for the year being
  studied will be modeled.

• NYISO capacity generation resource assumptions will be consistent
  with the 2009 RNA.

• PJM generation assumption will be consistent with the 2009 RTEP.

• ISO-NE generation assumptions will be consistent with the RSP08.




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NYISO/PJM Focused Study – Interchange Assumptions

•   Interchange assumption are based on firm transaction
     PJM interchange is consistent with 2009 RTEP interchange.
     ISO-NE interchange is consistent with RSP2008.
     NYISO interchange is consistent with the 2009 RNA model.

•   Public Service / ConEd Wheel will be modeled at 1000 MW in to PJM and
    1000 MW out to NYISO.
          • Assumption is the combined area is experiencing a capacity
             emergency.

•   Initial setting of the Ramapo PAR will be set to 900 MW into NYISO.




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NYISO/PJM Focused Study
   Load Deliverability
Load Deliverability




   Transmission system’s capability to deliver energy from aggregate of all
   capacity resources to an electrical area experiencing a capacity deficiency.


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Load Deliverability (NYISO/PJM)




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Load Deliverability Study (CETO/CETL)
• Capacity Emergency Transfer Objective(CETO)
   - CETO value represents the amount of energy that a given area must be
     able to import in order to remain within an LOLE of 1 event in 25 years
     (1/25) when that area is experiencing capacity deficiency.
  - After a study area is defined, generation patterns must be established –
     the area under study and the external area.
     The capacity resource deficiency for the area under study
            Based on the calculated CETO for the area, sufficient resources must be removed
            from service to create a need to import energy at a load level of 90/10 with the
            activation of Active Load Management (ALM), Special Case Resources (SCR) and
            Emergency Demand Response Program (EDRP).
    The external area not experiencing any capacity emergency
     conditions at 50/50 load level.




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Load Deliverability Study (CETO/CETL)
• Capacity Emergency Transfer Limit (CETL)
   - The CETL represents the ability of the Transmission System to
     support deliveries of energy to an electrical area experiencing a
     capacity emergency.
   - The magnitude of the deficiency is adjusted within and single
     contingency analysis is used to compute the CETL.
   - The study area’s CETL take into account emergency operations
     procedures designed to make as much power available to the
     deficient study area as possible under the prevailing system
     conditions.
   - If the CETL for a study area exceeds the CETO, the test is passed
     and on a probabilistic level, the import capability into the area is
     deemed adequate.




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NYISO/PJM Focused Study – Load
Deliverability Assumptions
• PJM generation outage rates will be based on the most recent
  Reserve Requirement Study performed by PJM.

• NYISO generation outage rates will be based on most recent IRM
  database update.

• Generation outage rates for future PJM and NY units will be
  estimated based on class average rates.




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NYISO/PJM Focused Study - Reliability

• Load Deliverability Testing Continued
  •     The test will be done consistent with PJM load deliverability test
        procedures.
        See PJM Manual 14B and PJM Manual 20 for additional detail
      (http://www.pjm.com/documents/~/media/documents/manuals/m14b.ashx )
      (http://www.pjm.com/documents/~/media/documents/manuals/m20.ashx )


  •    Study area includes
       Public Service-North and Rockland Electric – PJM
       Area G, H, I, J and K – NYISO

  •     Monitored all 100kV facilities in PJM/NYISO/NE-ISO

  •     Contingency analysis included NERC category B consistent with
        comprehensive area transmission review for ISO-NE/NYISO/PJM


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Model Representation


                                                                                  Total Load
                                                                                Management
                                  Reserve             Summer         Peak 2013 (Including SCR   BTM
                       CETO(MW)   Margin    # Units   Capacity        Demand       & EDRP)      Gen
 Area K - LIPA                     6.5%       96          5,616           5469      197          0
 Area J - NYC                     -20.2%     130          9,456          12295      451          0
 Area G - I                       21.6%       27          5,394           4493       56          0

    NY Sub Total =                -5.04%     253       20,466          22,257       704          0
 PSN                              -25.0%      46          3,964           5,357      71          0
 RECO                                         0                  0         467       0           0


 Total NY-PJM Region   9370       -10.5%     299       24,430          28,081       775          0




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Results - Load Deliverability (NYISO/PJM)

• CETO of 9370MW.

• CETL 9390 MW ( Exceeds CETO by 20MW) – Passed Test

• CETL computed based on the following overload and single contingency .
     Limiting facility Shoemaker– Chester 138kV in NYISO
     Loss of Rock Tavern – Ramapo 345kV ckt and Rock Tavern v1 –
        Sugarloaf 115kV ckt.

 Hudson to Farragut PAR angles were relaxed to maintain wheel of 1000MW.

 Several 138kV and one 345kV circuit were above 95% loading.




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NYISO/PJM Focused Study
     N-1-1 Analysis
N-1-1 Testing Procedure and Overview
• For normal conditions, all facilities shall be loaded within their normal
  ratings.
• The test is conducted on a 50/50 load level.
• After each single contingency, all control equipment is allowed to
  adjust including re-dispatch in preparation for the next contingency.
  Subsequent to re-dispatch all facilities must be within normal ratings.
• After the first contingency, if normal rating violation were identified,
  than re-dispatch is required to bring that facility loading below normal
  rating in preparation for second contingency.
• After the second contingency is taken, the case is solved using the
  same solution options as the first single contingency except that
  phase shifters are locked this time and do not adjust to hold flow and
  rate B violation are checked.
• Contingency analysis includes all 230 kV and greater facilities and
  other critical contingencies in ISO-NE, NYISO and PJM.


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   Results N-1-1 (NYISO/PJM)


                                                                                                Study
                     Outage Facility                   Overloaded Facility            Loading   Region
1) Pleasantville East to Dunwoodie 345kV   Sprain brook – Donwoodie South 345/138kV   102.20%   NYISO
   DUNWODIE 345/138KV Transformer
2) Pleasantville West to Dunwoodie 345kV
   DUNWOODIE 345/138KV Transformer
   Pleasantville 345/13kV Transformer




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  NYISO/PJM Focused Study
Generator Deliverability Analysis
Generator Deliverability Study
• Test the Transmission System capability of delivering the aggregate
  system generating capacity to the rest of the system at peak load
  with all firm transmission services modeled.

• Determines whether a generator qualifies for the status of a
  "certified" capacity resource.

• Load is modeled at a non-diversified 50/50 summer peak load level
  as per the latest load forecast.

• PJM generation deliverability procedures are detailed in manual 14B
  (http://www.pjm.com/documents/~/media/documents/manuals/m14b.ashx )




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Generator Deliverability Study




  Strength of the transmission system to ensure that the aggregate of
  generators in a given area can be reliably transferred to the rest of PJM.


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Results Generator Deliverability (NYISO/PJM)

• Tested the deliverability of PJM generation within PJM while
  monitoring all 100kV and above facilities in NYISO and PJM.

• Contingencies tested were all voltage level North American Electric
  Reliability Corporation (NERC) criteria A, B and C.

• No reliability issues were identified.




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ISO-NE/NYISO/PJM
    Next Steps
A. NYISO/PJM Focused Study

• Reliability Analysis (Remaining to be completed)
   – Perform sensitivity analysis on credible generation retirement
     scenarios for critical transmission contingencies identified above.
   – Load deliverability thermal analysis simulating peak summer
     conditions while simulating a capacity emergency in the
     combined Public Service-North / RECO/ConEd.
   – Develop potential transmission overlay options to resolve the
     issues identified in the reliability analysis.




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NYISO/PJM Focused Study

• Market Efficiency Analysis
  – Complete a focused market simulation of the combined
    NYISO/PJM system based on production costs.
  – Identify areas with the highest Locational Marginal Price (LMP)
    spreads.
  – Identify facilities that are causing congestion.
  – Test the market efficiency impact of the potential solutions
    identified in the reliability analysis as applicable.




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