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National Grid Local System Plan. Needs Assessment/Potential Solutions PAC Meeting September 21, 2010. Purpose of Local System Plan. Per Attachment K – Local, the LSP is a report that: Describes projected improvements to non-PTF that are needed to maintain system reliability Reflects:

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National GridLocal System Plan

Needs Assessment/Potential Solutions

PAC Meeting

September 21, 2010


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Purpose of Local System Plan

Per Attachment K – Local, the LSP is a report that:

  • Describes projected improvements to non-PTF that are needed to maintain system reliability

  • Reflects:

    • LSP Needs Assessments

    • Corresponding transmission system planning and expansion studies

  • Identifies:

    • Local Planning Process

    • Criteria, Data, and Assumptions


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LSP Communication

  • PAC, Transmission Customers, and other Stakeholders have 30 days to provide any written comments for consideration by National Grid.

    • National Grid’s contact:

      Gabriel Gabremicael

      Mgr Transmission Planning, New England

      National Grid

      40 Sylvan Road

      Waltham, MA 02451-1120

  • The ISO-NE RSP project list links to each individual TO’s LSP project list.

  • National Grid’s project list is located at:

    • http://www.nationalgridus.com/oasis/filings_studies.asp

      • "LSP - LTP Transmission Projects - August 2010


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LSP Project List

  • The LSP Project List is a cumulative listing of proposed regulated transmission solutions that may meet LSP needs.

  • Lower voltage facilities contained in the LSP Project List pertain to facilities supplying our wholesale municipal customers.

  • The LSP Project List contains the status of each project:

    • Concept

    • Proposed

    • Planned

    • Under Construction

    • In Service



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Local System Planning Process

  • Local studies can result from:

    • Load Growth

    • Area Reliability Assessments

    • Point of Delivery Request from Customer

    • Generation Interconnection Request

    • Asset Replacements (included in list as a new addition)

  • A Planner –

    • summarizes the results from the needs assessment and provides: criteria, data and assumptions used in study

    • builds study cases with proposed alternatives

    • determines the most effective solution

    • summarizes the results of the solutions study


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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 as:

    • Transmission Planning Guide


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Data and Assumptions

Resources for studies:

  • NEPOOL Library cases for load flow and ASPEN short circuit studies

  • CELT Report Load forecasts for NE wide loads

  • Customer provided forecasted loads for local areas



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Addressing 2009 LSP Comments

At the request of the Massachusetts Attorney General, National Grid added the following data categories to our LSP:

  • Dollar amounts for projects

  • Company Asset Owner



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LSP – Massachusetts(Fonts in Red are new or updates)


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LSP – Massachusetts Continued


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LSP – Massachusetts Continued


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LSP – Massachusetts Continued


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LSP – Massachusetts continued


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LSP – Massachusetts continued


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LSP – Massachusetts continued


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LSP – Rhode Island


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LSP – Removed From List


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Questions

Questions