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
2011
Budgeted Projects
• 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
• Cleco- 230KV Sellers Road
Substation
• Cleco- 230KV Rork Substation
• Cleco- 230KV Rork - Sellers
Road Trans. Line (30.1 mi)
• Cleco- 230KV Sellers RoadSegura Trans. Line (17 mi)
• Entergy- 230KV Sellers
Road- Meaux Trans. Line (8.3 mi)
2012
• 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 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
Pine Prairie
138KV Bus Voltage 0.8907 P.U.
Most limiting Contingency:
Coughlin – Plaisance 138KV Line
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)
Model Review
CLECO : (2011)
Mansfield Compressor 230KV
Substation
(Serving projected area load growth )
New Substations in Regional models
Model Review
New Substations in Regional models
ENTERGY : (2011)
Youngsville 138KV Substation
(Moves load off of 69KV System)
Model Review
Cleco : (2011)
Clarence – Maurice 69KV Line
New 69KV Transmission Line
in Regional models
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?