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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

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cleco transmission planning summit 2011

Cleco Transmission Planning Summit 2011

Coughlin Transmission Operations Center

April 15, 2011

10:00 – 11:00am

welcome

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
Agenda
  • Introduction
  • Economic Planning Studies
  • Acadiana Load Pocket Project Update
  • 2011 Transmission Construction Plan
  • Facility Ratings Changes
  • Model Review
  • Stakeholder Business
  • Final Questions
  • Adjourn
agenda1
Agenda

Introduction

Economic Planning Studies

Acadiana Load Pocket Project Update

2011 Transmission Construction Plan

Facility Ratings Changes

Model Review

Stakeholder Business

Final Questions

Adjourn

slide5

Economic Planning Studies

None were requested for 2011

agenda2
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 year 2010 progress report
Acadiana Load Pocket ProjectYear 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
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.

agenda3
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 plan1
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 plan2
Cleco 2011 Transmission Construction Plan

Budgeted Projects

2012

2011

  • 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
  • Construction of a new Rork 230KV Substation adjacent to the one at Richard
  • Build a new 230KV Transmission line from Rorkto 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
alp project timeline all participants

2012

Cleco 2011 Transmission Construction Plan

ALP Project Timeline (All participants)

2011

  • Cleco- 230KV Sellers Road
  • Substation
  • Cleco- 230KV Rork Substation
  • Cleco- 230KV Rork - Sellers
  • Road Trans. Line (30.1 mi)
  • Cleco- 230KV Sellers Road-
  • Segura Trans. Line (17 mi)
  • Entergy- 230KV Sellers
  • Road- Meaux Trans. Line (8.3 mi)
  • Cleco- 230KV Wells - Labbe
  • Trans. Line (17 mi)
  • Entergy- 230KV Sellers Road -
  • Labbe Trans. Line (14 mi)
  • LUS- 230KV Labbe - Bonin
  • Trans. Line (3 mi)
  • Cleco- Reconductor 138KV Segura- Hopkins Trans. Line
  • (3 mi)
  • [Serves to enhance the ALP project objectives]
cleco 2011 transmission construction plan3
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 plan4
Cleco 2011 Transmission Construction Plan

Regions in purple indicate potential planning criteria violations

Bus Under Voltage

cleco 2011 construction plan
Cleco 2011 Construction Plan

2022 Study Cases

Bus under voltage Violations

Most limiting Contingency:

Coughlin – Pine Prairie 138KV Line

Most limiting Contingency:

Coughlin – Plaisance 138KV Line

Pine Prairie

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.

agenda4
Agenda

Introduction

Economic Planning Studies

Acadiana Load Pocket Project Update

2011 Transmission Construction Plan

Facility Ratings Changes

Model Review

Stakeholder Business

Final Questions

Adjourn

rating changes
Rating Changes

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
slide25

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
2011 ratings summary
2011 Ratings Summary

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

agenda5
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
Model Review
  • New Substations in Regional models
  • New 69KV Transmission Line
  • N-1 ACCC Results
model review1
Model Review

New Transmission Line and

Substations in 2011 Regional models

Mansfield Compressor

Clarence – Maurice 69KV Line

Barker’s Corner

Youngsville

model review2
Model Review

New Substations in Regional models

LAGN : (2011)

Barkers Corner 230KV Substation

(moving load from other subs)

model review3

New Substations in Regional models

Model Review

CLECO : (2011)

Mansfield Compressor 230KV Substation

(Serving projected area load growth )

model review4
Model Review

New Substations in Regional models

ENTERGY : (2011)

Youngsville 138KV Substation

(Moves load off of 69KV System)

model review5
Model Review

New 69KV Transmission Line in Regional models

Cleco : (2011)

Clarence – Maurice 69KV Line

spp 2011 series model accc results unmitigated thermal overloads
SPP 2011 Series Model ACCC ResultsUnmitigated 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
SPP 2011 Series Model ACCC ResultsUnmitigated 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 review6
Model Review

Questions ?

agenda6
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
Stakeholder Business
  • Chance for Stakeholders to bring issues up for discussion