entergy ict transmission planning summit istep 2010 update
DESCRIPTION
Entergy ICT Transmission Planning Summit ISTEP 2010 Update. Harvey Scribner August 11, 2010 New Orleans, Louisiana. ICT Strategic Expansion Plan (ISTEP) - Purpose. Promote EHV expansion on Entergy transmission system by identifying problem areas and developing long-term strategic solutions - PowerPoint PPT PresentationTRANSCRIPT
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Entergy ICT Transmission Planning Summit ISTEP 2010 Update
Harvey ScribnerAugust 11, 2010 New Orleans, Louisiana
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ICT Strategic Expansion Plan (ISTEP) - Purpose
• Promote EHV expansion on Entergy transmission system by identifying problem areas and developing long-term strategic solutions Improving Load-Serving Capability
Improving Transfer Capability
Improving Deliverability to Load Pockets/Load Centers
Relieving Constraining Flowgates
• Outside the scope of the ICT Base Plan
• FERC Order 890 – Five free economic studies
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Schedule• *LTTIWG – 3/16/2010
Present general schedule
Post TLR events
• Post AFC limiting FG’s – 3/24/2010
• Request more detail on Stakeholder proposed projects – 3/24/2010
• Stakeholder preliminary responses – 3/31/2010
• Post and distribute project list for stakeholder email vote – 4/1/2010
• LTTIWG – 4/13/2010
Stakeholder proposed projects
• Powerflow base case model update – 4/16/2010
• Email Votes due – 4/21/2010
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* Red – Task completed
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Schedule (cont.)• Post voting results as part of background material – 5/4/2010
• LTTIWG –Baton Rouge, LA – 5/11/2010 Present top 10 project selection
• SPC –Baton Rouge, LA – 5/12/2010 Vote on top 5 projects
• LTTIWG –Houston, TX – 7/21/2010 Update
• Entergy ICT Transmission Planning Summit – August 11, 2010
• GridView Base Model update – August 2010
• Powerflow change model analysis and project selection – September 2010
• Plan cost estimates – September 2010
• GridView Economic analysis – October 2010
• Final results – Late 4thQuarter 2010
• Final report – Early 1stQuarter 20115
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2010 ISTEP – Selected Projects
• Conway Area Morrilton-Gleason 161kV
Gleason-Tyler 161kV
Tyler-Conway W 161kV
Mayflower-Morgan 115kV
• North East Arkansas Newport-Fisher FTLO ISES – Dell 500kV, FG #1946
Paragould –Monette Junction FTLO ISES –Dell 500kV, FG #1948
Melbourne –Sage FLTO ISES –Dell 500kV, FG #14769
Newport –Newport Industrial FTLO ISES –Dell 500kV, FG #15540
Swifton –Hoxie FTLO ISES –Dell 500kV, FG #15217
Parkin –Gilmore FTLO ISES –Dell 500kV, FG #16071
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2010 ISTEP – Selected Projects (cont.)
• Mt. Olive –Hartburg voltage stability constraint – Thermal capacity of this line is significantly higher than its current limit which is determined by voltage stability issues in WOTAB. Adding series compensation to this line or splitting the line may mitigate the problem
• Hartburg-Cypress 500kV contingency – Underlying network in WOTAB becomes the limit for injections into Hartburg 500kV substation. A new Hartburg-Sabine 230kV line may address this issue
• ANO-Pleasant Hills FTLO ANO-Mabelvale flowgates
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• Entergy Draft Construction Plan 2011-2013
• Holland Bottoms (Cabot EHV): Construct new 500/161/115 kV substation
Phase 1 Projects (Summer 2011, Approved)
Tap the Keo - ISES 500 kV Line
Tap the Cabot - Jacksonville North 115 kV Line
Install 500 kV and 115 kV Busses and a 600 MVA 500 kV / 115 kV Autotransformer
Phase 2 Projects (2012, Proposed and In-Target)
Install 161 kV Bus and a 600 MVA 500 kV / 161 kV Autotransformer
2010 ISTEP Project – Conway Area
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• Holland Bottoms - Hamlet 161 kV Line: Construct new 161 kV Line (2012, Proposed and In-Target)
Convert Hamlet SS to a breaker station (Single Bus Single Breaker Scheme)
Move the Quitman line from Gold Creek to Hamlet SS
Move the Gravel Ridge line from Gold Creek to Hamlet SS
Construct a line rated at least 1200 A from Hamlet SS to Holland Bottoms
2010 ISTEP Project – Conway Area (continued)
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• Morrilton East – Gleason 161 kV
2011 Reliability Assessment Thermal Results
Contingency 2012S 2012W 2016S 2016W 2019S 2012S 2012W 2016S 2016W 2019SOPEN LINE FROM BUS 337923 [5P HILL 161.00] TO BUS 337925 [5GREENB 161.00] CKT 1 110.74OPEN LINE FROM BUS 337925 [5GREENB 161.00] TO BUS 337926 [5QUITMN 161.00] CKT 1 103.83OPEN LINE FROM BUS 337928 [3CONW-W 115.00] TO BUS 337929 [3LK CON 115.00] CKT 1 104.21 113.11 122.86OPEN LINE FROM BUS 337928 [3CONW-W 115.00] TO BUS 338422 [5CONW-W 161.00] CKT 1 104.21 113.11 122.86OPEN LINE FROM BUS 337929 [3LK CON 115.00] TO BUS 337930 [3MAYFL 115.00] CKT 1 112.71 122.18 132.61
(UPDATE 1) 2010 -2011 APPROVED CP (CPE) DRAFT 2011-2013 APP/PROP CP
2009 SERIES UPDATE 1 POWERFLOW MODELS
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• Gleason – Tyler 161 kV
2011 Reliability Assessment Thermal Results
Contingency 2012S 2012W 2016S 2016W 2019S 2012S 2012W 2016S 2016W 2019SOPEN LINE FROM BUS 337923 [5P HILL 161.00] TO BUS 337925 [5GREENB 161.00] CKT 1 106.56OPEN LINE FROM BUS 337928 [3CONW-W 115.00] TO BUS 337929 [3LK CON 115.00] CKT 1 100.16 108.98 118.61OPEN LINE FROM BUS 337928 [3CONW-W 115.00] TO BUS 338422 [5CONW-W 161.00] CKT 1 100.16 108.98 118.61OPEN LINE FROM BUS 337929 [3LK CON 115.00] TO BUS 337930 [3MAYFL 115.00] CKT 1 108.62 118.01 128.32
(UPDATE 1) 2010 -2011 APPROVED CP (CPE) DRAFT 2011-2013 APP/PROP CP
2009 SERIES UPDATE 1 POWERFLOW MODELS
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• Lake Conway - Mayflower 115 kV
2011 Reliability Assessment Thermal Results
Contingency 2012S 2012W 2016S 2016W 2019S 2012S 2012W 2016S 2016W 2019SOPEN LINE FROM BUS 337921 [5MOR-E 161.00] TO BUS 337927 [5GLEASN 161.00] CKT 1 15.73OPEN LINE FROM BUS 337927 [5GLEASN 161.00] TO BUS 338424 [5TYLER 161.00] CKT 1 113.51OPEN LINE FROM BUS 338422 [5CONW-W 161.00] TO BUS 338424 [5TYLER 161.00] CKT 1 100.97OPEN LINE FROM BUS 337922 [8P HILL 500.00] TO BUS 337923 [5P HILL 161.00] CKT 1 100.12 108.89
(UPDATE 1) 2010 -2011 APPROVED CP (CPE) DRAFT 2011-2013 APP/PROP CP
2009 SERIES UPDATE 1 POWERFLOW MODELS
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• Mayflower - Morgan 115 kV
SI = System Intact
2011 Reliability Assessment Thermal Results
Contingency 2012S 2012W 2016S 2016W 2019S 2012S 2012W 2016S 2016W 2019SSYSTEM INTACT 103.09OPEN LINE FROM BUS 337826 [3LR-PIN 115.00] TO BUS 337827 [3LR-ROL RD* 115.00] CKT 1 103.73 SI 100.05OPEN LINE FROM BUS 337827 [3LR-ROL RD* 115.00] TO BUS 337930 [3MAYFL 115.00] CKT 1 104.07 SI 100.39OPEN LINE FROM BUS 337857 [3LR-PRT 115.00] TO BUS 337858 [3LR-145 115.00] CKT 1 101.72 SIOPEN LINE FROM BUS 337857 [3LR-PRT 115.00] TO BUS 338480 [3FAUKLK 115.00] CKT 1 100.13 SIOPEN LINE FROM BUS 337858 [3LR-145 115.00] TO BUS 337859 [3WRIGHTS 115.00] CKT 1 102 SIOPEN LINE FROM BUS 337859 [3WRIGHTS 115.00] TO BUS 337860 [8KNWRIVL 500.00] CKT 1 101.19 SIOPEN LINE FROM BUS 337930 [3MAYFL 115.00] TO BUS 338760 [3OLMST# 115.00] CKT 1 106.72 SIOPEN LINE FROM BUS 337936 [3SYLVN 115.00] TO BUS 338760 [3OLMST# 115.00] CKT 1 106.31 SIOPEN LINE FROM BUS 338016 [3HOLBT 115.00] TO BUS 338140 [8HOLBT 500.00] CKT 1 SI 101.81OPEN LINE FROM BUS 338420 [5DONAGHE 161.00] TO BUS 338422 [5CONW-W 161.00] CKT 1 100.46 SI
(UPDATE 1) 2010 -2011 APPROVED CP (CPE) DRAFT 2011-2013 APP/PROP CP
2009 SERIES UPDATE 1 POWERFLOW MODELS
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2010 ISTEP Status• Research alternative project to replace Conway Area –
select by end of August On schedule
• Complete powerflow analysis of Hartburg-Cypress 500kV contingency by end of August TLR data analysis complete Preparing Powerflow conditions for base case and contingency
screening On schedule
• Complete construction of GridView base model update by end of August Network update complete Updating Interface Assignments, Contingency Definitions, Load
Profiles On Schedule
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