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2010 Cleco Transmission Planning Summit

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2010 Cleco Transmission Planning Summit Powered By Docstoc
					                Cleco Transmission
             Planning Summit 2011
Coughlin Transmission Operations Center
                            April 15, 2011
                         10:00 – 11:00am
Introduction

                          Welcome

  Terry Whitmore, Mgr- Trans Planning & Operation Support

  James Simms,     Lead Engineer- Transmission Planning

  Chris Thibodeaux, Sr. Engineer- Transmission Planning

  Robby Michiels, Sr. Engineer- Transmission Planning
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
           Economic Planning Studies


None were requested for 2011
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
Acadiana Load Pocket Project
          Update
Acadiana Load Pocket
                    Acadiana Load Pocket Project
                     Year 2010 Progress Report

•   Flanders – Hopkins 138KV Transmission line tapped for new Segura
    substation.

•   New Segura 230/138KV Cleco substation Phase I completed
     – 138KV facilities are presently energized
     – 230KV facility commission is scheduled for the end of second quarter 2011


•   New Segura – Moril 138KV Transmission line completed & connected to
    Segura 138KV bus
ALP Project Update – Summer 2010



                             •Cleco- 230KV Segura Substation

                             •Cleco- Segura to Moril 138KV Trans. Line (0.2 mi)

                             Note: Hopkins – Flanders 138KV line is tapped for
                             new Segura substation. Just 138KV bus is energized
                             at this point.
ALP Project Update – Summer 2011
ALP Project Update – Summer 2012
ALP Project Update

    Questions ?
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
Cleco 2011 Transmission Construction Plan
        Cleco 2011 Transmission Construction Plan


                         Budgeted Projects
• Near term projects deal with Cleco’s obligations to the Acadiana Load Pocket Project and
the Reliable operation of the Bulk Electric System.
    Cleco 2011 Transmission Construction Plan
                              Budgeted Projects
2011
• Construction of a new Rork 230KV Substation adjacent to the one at Richard
• Build a new 230KV Transmission line from Rork to the Sellers Road Substation
• Construction of a new 230KV Sellers Road Substation
• Build a new 230KV Transmission line from Sellers Road to the Segura Substation
• Construction of a new Mansfield Compressor 230KV Substation tapping Dolet Hills –
  Fisher 230KV line
• Construction of a new Clarence – Maurice 69KV transmission line
• Transmission element replacements on Plaisance – Coughlin 138KV transmission line


2012
• Build a new 230KV Transmission line from Wells to the LUS Labbe Substation
• Reconductor existing Segura – Hopkins 138KV transmission line
  (This will complete Cleco’s participation in the ALP project.)
• Second 230/138KV Autotransformer at Cocodrie Substation
          Cleco 2011 Transmission Construction Plan
ALP Project Timeline (All participants)
               2011                                    2012




    • Cleco- 230KV Sellers Road           • Cleco- 230KV Wells - Labbe
     Substation                            Trans. Line (17 mi)

    • Cleco- 230KV Rork Substation        • Entergy- 230KV Sellers Road -
                                           Labbe Trans. Line (14 mi)
    • Cleco- 230KV Rork - Sellers
     Road Trans. Line (30.1 mi)           • LUS- 230KV Labbe - Bonin
                                           Trans. Line (3 mi)
    • Cleco- 230KV Sellers Road-
     Segura Trans. Line (17 mi)           • Cleco- Reconductor 138KV
    • Entergy- 230KV Sellers              Segura- Hopkins Trans. Line
                                          (3 mi)
     Road- Meaux Trans. Line (8.3 mi)
                                          [Serves to enhance the ALP project
                                          objectives]
        Cleco 2011 Transmission Construction Plan
                 Long Range Planning- 5 years or greater

• System models used in the analysis go out 5 years and beyond
      •Inputs are extrapolated from short term planning estimates
      •Accuracy is therefore limited
      •Results are given leeway in terms of interpretation

•Long Term Planning does allow the identification of potential areas of concern
    •Attention is given to those problems that remain consistent over model runs especially
    those that get closer to the present
    •Typically, there is enough time to develop mitigation plans and fund projects

•Long Range Planning Analysis has identified some areas of concern
    •These occur at the end of the planning horizon
    •At this time, these areas don’t warrant the outlay of capital but will be noted
Cleco 2011 Transmission Construction Plan

                               Regions in purple indicate potential
                               planning criteria violations




     Bus Under Voltage
                           Cleco 2011 Construction Plan
                                                                                       2022 Study Cases
                                                                                   Bus under voltage Violations

                               Most limiting Contingency:
                               Coughlin – Pine Prairie 138KV Line
                                                                                       Most limiting Contingency:
               Pine Prairie                                                            Coughlin – Plaisance 138KV Line
               138KV Bus Voltage 0.8907 P.U.




                                                                                                    Plaisance
                                                                                                    138KV Bus Voltage
                                                                                                    0.885 P.U.
 Oakdale
 138KV Bus Voltage 0.8979 P.U.

Mitigation: Investigate installation of
capacitor banks at Pine Prairie.


                                                         Mitigation: Investigate installation of
                                                         capacitor banks at Plaisance.
Cleco 2011 Transmission Construction Plan


              Questions ?
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
• New NERC standards mandated Cleco to re-evaluate all 100KV and
  above Transmission Line Ratings including the following elements:
  –   Breakers
  –   Switches
  –   Conductor
  –   Jumpers
  –   Bus
  –   CT Ratios
  –   Wave Traps
  –   Relay Setting Limits
Results of Analysis

• Upgrade of multiple lines whose limiting element created base case
  overloads

• Since 2010
   – Changed Normal Rating temperature basis from 85° to 93°C
       • Increased Normal Ratings
   – Changed Normal and Emergency Rating procedures for jumpers
       • Increased Normal and Emergency Ratings
• Comparison of 2010 to 2011 SPP series of models:

  – Cleco Transmission lines 100KV or greater
       • 51% had their A rating increase
           – 8% had their A rating decrease
       • 13% had their B rating increase
           – 1% had their B rating decease

  – Cleco Tie Lines
       • 11% had their A rating increase
           – 49% had their A rating decrease
       • 19% had their B rating increase
           – 28% had their B rating decrease

• Refer to the SPP models for specific line ratings
Facility Rating Changes

      Questions ?
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
Model Review

•   New Substations in Regional models
•   New 69KV Transmission Line
•   N-1 ACCC Results
Model Review
                                   New Transmission Line and
                                   Substations in 2011 Regional models

Mansfield
Compressor


Clarence – Maurice
69KV Line




                                                    Barker’s Corner




                     Youngsville
     Model Review
                                  New Substations in Regional models




LAGN : (2011)
Barkers Corner 230KV Substation
(moving load from other subs)
                                        New Substations in Regional models
 Model Review




CLECO : (2011)
Mansfield Compressor 230KV
Substation
(Serving projected area load growth )
Model Review
               New Substations in Regional models




                  ENTERGY : (2011)
                  Youngsville 138KV Substation
                  (Moves load off of 69KV System)
                               New 69KV Transmission Line
    Model Review               in Regional models




Cleco : (2011)
Clarence – Maurice 69KV Line
         SPP 2011 Series Model ACCC Results
                      Unmitigated Thermal Overloads
Champagne – Plaisance 138KV: 120%
    Contingency: Cocodrie – Ville Platte 230KV
         Models: Summer/Winter 2013, 2017 & 2022
         Limiting element resides outside of the Cleco Control Area
         Will be monitored in subsequent years
         SPP 2011 Series Model ACCC Results
              Unmitigated Long Range Low Bus Voltages
Oakdale & Pine Prairie 138KV : 0.89PU
    Contingency: Coughlin – Pine Prairie 138KV
        Model: Summer 2022
        Long Range Mitigation Plan considers adding capacitor banks at Pine Prairie

Plaisance 138KV : 0.885PU
     Contingency: Coughlin – Plaisance 138KV
        Model: Summer 2022
        Will monitor this voltage in future years
Model Review

 Questions ?
Agenda
•   Introduction
•   Economic Planning Studies
•   Acadiana Load Pocket Project Update
•   2011 Transmission Construction Plan
•   Facility Ratings Changes
•   Model Review
•   Stakeholder Business
•   Final Questions
•   Adjourn
Stakeholder Business

•   Chance for Stakeholders to bring issues up for discussion
Final Questions?

				
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