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									Draft Local Transmission Plan (LTP) NY
Joseph J. Hipius, Jeffrey M. Maher, Mark S. Forchilli
ESPWG/TPAS Meeting; October 14, 2009
Local Transmission Planning Process
 LTP is developed to supplement other planning processes, such
 as:
    NYISO’s CSPP, including RNA and CARIS
    STARS, joint long-term study with other NY transmission owners
 LTP identifies local system needs that may not be addressed by
 other NYISO planning processes, and identifies solutions
    Local transmission planning is done as concurrent area transmission
    studies, with care to identify inter-area effects
    High level NYISO base cases are refined to reflect localized adjustments
    Depending on area, peak and light load models are used
    Sensitivities are examined to generation dispatch, bulk power transfer
    levels, and other factors of importance to the area under study
    Potential non-compliances with planning standards and criteria are
    identified
    Full range of possible solutions are considered
Transmission Facilities Studied
    Models used in National Grid’s studies include all
    transmission facilities in NY State plus major
    transmission in neighboring systems in Ontario,
    Quebec, New England, and PJM
    National Grid studies all contingencies required by
    the standards, criteria and its Transmission Planning
    Guide and monitors impacts on all systems
    Problems identified within National Grid’s 345 kV,
    230 kV, and 115 kV systems are addressed and are
    discussed with the NYISO; problems found on
    neighboring systems are discussed with the
    applicable transmission owner
    Transmission Facilities Studied
    National Grid Transmission Planning New York Study Areas
       West               Central                   East
                          Syracuse/Oswego
F     Frontier    SOC                       NE    Northeast
                         /Cortland
                                                  Capital and
G     Genesee     N      Northern           CHV
                                                  Hudson Valley

SW Southwest      UR     Utica/Rome




         Note: Some National Grid transmission lines extend outside its retail service areas.
         Some lines within National Grid’s retail service areas are not owned by National Grid.
LTP Information Available On Line

 The NYISO website provides a link to the National Grid
 project list, in the Planning section (under the Services
 menu).
 National Grid’s project list can also be accessed directly at:
    http://www.nationalgridus.com/oasis/filings_studies.asp
       Under Local Studies, click the link to the Excel file, “LSP - LTP
       Transmission Projects - August 2009”
Planning Criteria
    All National Grid facilities that are part of the
    interconnected National Grid system shall be
    designed in accordance with the National Grid
    Transmission Planning Guide.
    The National Grid Transmission Planning Guide is
    posted on our website under:
       http://www.nationalgridus.com/transmission/c3-
       8_standocs.asp
       Click the link to: Transmission Planning Guide
    The National Grid Transmission Planning Guide
    references, and requires adherence to, applicable
    NERC, NPCC and NYSRC standards and criteria.
Planning Horizon, Data, Assumptions, Tools
    Planning horizon generally is 10 years, as required
    for the Bulk Electric System by NERC standards.
    Current plans span 2009-2018.
    Certain special studies may extend beyond 10 years.
    NYISO base cases for load flow and transient
    stability (FERC 715); PSS/E used for analysis
    NYISO data for short circuit studies; Aspen OneLiner
    used for analysis
    NYISO “gold book” forecasts for NY wide loads
    Adjustments to load in local areas where necessary
    to reflect non-coincident peaks, localized load growth
LTP Project List

  The LTP Project List is a cumulative listing of proposed
  regulated transmission solutions that may meet LTP needs.
  The LTP Project List contains the status of each project:
     Concept
     Proposed
     Planned
     Under Construction
     In Service
LTP Project List

                              Project Status Descriptions

   Concept      Project is under consideration as possible solution to a need, but little or no
                analysis is available.

  Proposed      National Grid has internally determined that the project is an appropriate
                solution to a need, but has not yet obtained System Impact Study (SIS)
                approval through the NYISO (if required).
   Planned      SIS has been approved (if required) and National Grid has management
                commitment to proceed with the project.
    Under       Project has siting approval, as required, and is under construction.
 Construction

  In Service    Project is complete and in commercial operation.
2009 LTP Projects
LTP Project List – Western NY (1 of 3)
               Projected In-
 Primary         Service                                                                                       Current
  Driver       Month/Year          Major Project                               Project                         Status     Needs

 Reliability       12/09       Swann Rd Transformer       Replace 115-13.2 kV transformer                      Concept    Address distribution loading concerns


                               Correction of Mortimer -   Project to correct overloads on circuits between
 Reliability       05/13                                                                                       Concept    Line overloads under contingencies
                                 Elbridge overloads       Mortimer and Elbridge

                                   Addition of fourth
 Reliability       05/14                                  Addition of fourth 230:23 kV transformer at Elm St   Concept    N-1 and N-1-1 (NG TGP) transformer overloads
                                  transformer at Elm

                                   Addition of fourth     Addition of fourth 230:23 kV transformer at
 Reliability       05/14                                                                                       Concept    N-1 and N-1-1(NG TGP) transformer overloads
                                transformer at Sawyer     Sawyer Ave


                                   Addition of new
Load Growth        05/14       Frankhauser 115:13.2 kV Addition of new Frankhauser 115:13.2 kV station         Concept    Address distribution loading concerns
                                       station

                                                          Install 2-120 MVAR capacitor banks at Gardenville
 Reliability       05/14        Gardenville Cap Banks                                                          Proposed   Gardenville low 230 kV voltage
                                                          (115 kV)

                                                          Install 1-15 MVAR capacitor bank at Andover (115
 Reliability       05/10          Andover Cap Bank                                                             Proposed   Southwest area low voltage
                                                          kV)

                                                          Reconductor Falconer - Warren 115 kV circuit
 Reliability       05/12        Reconductoring #171                                                            Proposed   Southwest area low voltage
                                                          #171


 Reliability       05/13                                  Conversion of line #109 from 69 kV to 115 kV         Proposed   Golah low voltage
                               Mortimer-Golah area 115
                                  kV reinforcements    Split the Mortimer bus into three sections,
 Reliability       05/13                                                                                       Proposed   Golah low voltage
                                                       rearrange line terminals
 Reliability       05/13                                  Split the Golah bus into two sections                Proposed   Golah low voltage
LTP Project List – Western NY (2 of 3)
              Projected In-
Primary         Service                                                                                   Current
 Driver       Month/Year           Major Project                             Project                      Status     Needs
                                Niagara-Packard #195
Reliability       05/13                                  Niagara-Packard #195 115 kV line rebuild         Proposed   Thermal Overload
                                       rebuild
                                                         Construct a new 345:115 kV station in the
Reliability       06/12           Southwest Station                                                       Proposed   Southwest area low voltage
                                                         southwest region with cap bank

                               Replacement of Packard
Reliability       09/12                               Replace Packard 230:115 kV transformers             Proposed   Asset age and condition
                                    Transformers


                                                         Reconductor 115 kV circuit between Packard,
Reliability       05/13         Frontier Line Rebuilds   Paradise and Gardenville including upgrade of    Proposed   Thermal overloads
                                                         one circuit from 69 kV to 115 kV


                              Replacement of Gardenville Replace Gardenville 230:115 kV transformers
Reliability       06/14                                                                                   Proposed   Asset age and condition
                                    Transformers         TB#3 and TB#4

                                                         Reconductor part of Gardenville - Erie 115 kV
Reliability       05/12          Reconductoring #54                                                       Proposed   Thermal overloads
                                                         circuit #54

                              Batavia Cap Bank and Bus Install 1-27 MVAR capacitor bank at Batavia and
Reliability       05/12                                                                                   Proposed   Batavia Area low voltage
                                       upgrade         increase size of bus conductor (115 kV)

                                                         Install 1-25 MVAR capacitor bank at Homer Hill
Reliability       05/12         Homer Hill Cap Banks                                                      Proposed   Southwest area low voltage
                                                         (115 kV)
                                 Gardenville - Dunkirk
Reliability       05/13                                  Rebuild Gardenville - Dunkirk 141/142            Proposed   Asset age and condition
                                   141/142 rebuild
                               Second Lockport Bus Tie Add a second 115 kV bus tie in series with
Reliability       05/13                                                                                   Proposed   Batavia Area low voltage
                                      Breaker          existing bus tie breaker
                               Lockport - Mortimer #111
Reliability       05/13                                 rebuild Lockport - Mortimer 115 kV circuit #111   Proposed   Asset age and condition
                                        rebuild
LTP Project List – Western NY (3 of 3)

              Projected In-
Primary         Service                                                                                        Current
 Driver       Month/Year           Major Project                              Project                          Status        Needs

Reliability       05/14       Gardenville Station rebuild Rebuild Gardenville 115 kV station                   Proposed      Asset age and condition

                               Second Dunkirk Bus Tie Add a second 115 kV bus tie in series with
Reliability       05/14                                                                                        Proposed      Southwest area low voltage
                                      Breaker         existing bus tie breaker

                              Addition of breakers to #2 Loop Mortimer - Elbridge #2 and Pannell - Geneva
Reliability       05/12                                                                                        Proposed      NYSEG Request
                                    and #4 circuits      #4 into Farmington

                                                          Replace limiting terminal equipment on Lockport -
Reliability       05/12           Upgrade of #107                                                              Proposed      Batavia Area thermal overload
                                                          Batavia 115 kV circuit #107

                                                          Replace limiting terminal equipment on Homer Hill
Reliability       05/12           Upgrade of #157                                                              Proposed      Southwest area low voltage
                                                          - Bennett 115 kV circuit #157

Reliability       06/09         Sycaway transformer       Add new 115-13.2 kV transformer                      Proposed      Address distribution loading concerns

Reliability       09/09       Reynolds Rd Transformer Add new 115-13.2 kV transformer                          Proposed      Address distribution loading concerns


Reliability       06/12                                   New 115 kV Paradise station to replace Huntley       Proposed      Huntley area low voltage
                                  Paradise Station
                                                          Replacement of 115 kV breakers at Packard to          Under
Reliability       06/12                                                                                                      Overdutied Breakers
                                                          close normally open bus tie                         Construction

                                                                                                                Under
Reliability       12/08           Lockport Breakers       Replacement of Lockport 115 kV bus tie breaker                     Overdutied Breakers
                                                                                                              Construction

                               Gardenville - Homer Hill
Reliability       05/11                                   Rebuild Gardenville - Homer Hill 151/152              Planned      Asset age and condition
                                  151/152 rebuild

Reliability       07/08           Dunkirk Breakers        Replacement of Dunkirk 115 kV breakers               In Service    Overdutied Breakers
Western NY – Frontier area
Western NY – Southwest area
Western NY –Genesee area
LTP Project List – Central NY
              Projected In-
Primary                                                                                                      Current
                Service            Major Project                                                                        Needs
 Driver                                                                                                      Status
              Month/Year
                                                                               Project
                                                          Replace three 115 kV circuit breakers at ALCOA                Addresses breakers that are over its current interrupting
Reliability       12/09                                                                                      Concept
                                                          substation                                                    capabilities
                                Northern Area Projects
                                                                                                                        Reduce outage time of the Lake Colby SVC if these long
Reliability       12/09                                                                                      Concept
                                                        Purchase spare 115-15 kV transformer and                        lead time items are out of service.
                                                        Thyristor controlled reactor for Lake Colby SVC
                                                        Install a new disconnect switch an tap on the East
                                                        Watertown 115 kV bus to connect a mobile                        Reduce outages at East Watertown to connect a mobile
Reliability       12/09       East Watertown Mobile Tap                                                      Concept
                                                        substation                                                      substation

                                                       Installing two new 115 kV motor operated
                                                       disconnect switches and two (2) Cuts to
                              Automate 115 kV Switches implement the automatic control scheme at                        Reduce outages at Lowville substation because of a
Reliability       12/09                                                                                      Concept
                                     at Lowville       Lowville.                                                        Boonville-Taylorville #5 line outage


                                                          Reconductor Clay - Dewitt #3                                  Overloading on lines due to load increase
                                   Central Division       Reconductor Clay - Teall #10                                  Overloading on lines due to load increase
Reliability       12/12                                                                                      Concept
                                   Reconductoring
                                                          Reconductor Oneida - Yahnundasis #3                           Overloading on lines due to load increase
                                                          Install new Distribution Substation in North
Reliability       12/12       North Syracuse Substation                                                      Concept    Address distribution system needs
                                                          Syracuse area
                                                         Replace two 345 kV breakers at Volney and
                              Replace 345 kV Breakers at replace eight breakers at Scriba
                                                                                                                        Addresses breakers that are over its current interrupting
Reliability       03/09           Scriba and Volney                                                          Proposed
                                                                                                                        capabilities
                                     Substations


                               Clay Station Bulk Power Clay 115 kV Substation Bulk Power Upgrades
Reliability       12/12                                                                                      Proposed   Required by NPCC A-10 criteria
                                      Upgrades
                                                         Porter 115 kV Substation Bulk Power Upgrades,
                               Porter Station Bulk Power
Reliability       12/13                                  includes reconfiguration of 115kV portion of the    Proposed   Required by NPCC A-10 criteria
                                       Upgrades
                                                         substation
                                                         Dewitt 345kV Breaker addition
Reliability       08/12         345kV Breaker Addition                                                       Planned    Reliability, and Operational needs
LTP Project List – Eastern NY
               Projected In-
 Primary         Service                                                                                       Current
  Driver       Month/Year           Major Project                              Project                         Status     Needs
                               Inman Rd Substation load Install second transformer bank and two new
Load growth        06/10                                   feeders.                                            Concept    Address distribution system needs
                                          relief
                               Everett Rd Substation load Upgrade transformer bank and install new
Load growth        06/11                                   feeders.                                            Concept    Address distribution system needs
                                          relief
                                                           Install new Alps site 115kV/13.2kV Substation and
 Reliability       06/10       Hoag Substation reliability retire the Hoag Substation                          Concept    Address distribution system needs

                                                          230-115kV station at Turner Road in                             Support for Northeast area and growth associated with
 Reliability       06/14                                  Schaghticoke, supplied by the Rotterdam-Bear         Proposed   Global Foundries; relieve potential autotransformer
                                                          Swamp #E205 230kV.                                              overload
                                                          Add fourth Rotterdam 230-115kV Transformer.
 Reliability       06/14                                                                                       Proposed   Potential autotransformer overload for N-1-1 conditions
                                                          Spier-Rotterdam #1/#2 115kV Reconductoring,
                                                          reconfiguration, and addition of new Spier-
 Reliability       06/14                                  Rotterdam #3 115kV.                                  Proposed   N-1 contingency overload


                                                          Replace five 115kV Circuit Breakers at North Troy.              Provide increased short-circuit capability necessary with
 Reliability       06/14           Northeast Region                                                            Proposed
                                                                                                                          Turner Road 230-115kV addition.
                                 Reinforcement Project
                                                          Reconductor Ballston #2 115kV tap (Tap-Ballston;
 Reliability    2010-2011                                 3.9 miles) and Mohican-Battenkill #15 115kV (14.2    Proposed   N-1 contingency overload
                                                          miles).
                                                          Reconductor Turner Rd-Luther Forest #3 115kV
                                                          (10.4 miles), Ballston #2 115kV Tap (Ballston-                  Service to new Luther Forest substation; prevent line
 Reliability    2017-2019                                 Malta; 5.1 miles), and Mohican-Butler # 18 (3.5      Proposed
                                                                                                                          overload
                                                          miles).
                                                          Addition of 250MVAR of reactive compensation
                                                          (capacitors) to Northeast Region T/D System.                    Voltage support for Northeast, particularly with load
 Reliability    2015-2019                                                                                      Proposed
                                                                                                                          growth
Eastern NY – Northeast area
LTP Communication

 Interested parties may submit written comments on
 National Grid’s LTP within 30 days (by November 13, 2009)
 to:
               Joseph J. Hipius
               Manager, Transmission Planning - NY
               National Grid
               300 Erie Blvd. West
               Syracuse, NY 13202

 Comments will be posted on the NYISO website.
 Modifications to the LTP will be explained in the posted LTP
 and discussed at the next LTP meeting.
Questions




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