Transcript Transmission Template

Entergy Louisiana, LLC
(North)
2010 to 2012 Draft Construction Plan
Entergy Transmission Planning Summit
New Orleans, LA
August 11, 2009
1
2010 to 2012 ELL-North Transmission Draft Construction
Plan
Ouachita Transmission Service
(Proposed ISD 2012)
Delhi: Install 115 kV Reactor
(Proposed ISD Summer 2010)
Northwest LA / Southwest AR
voltage support pan (Sarepta)
(Proposed ISD 2011)
2
Delhi Reactor
Scenario:
•
The loss of the Sterlington - El Dorado 500 kV line results in the underlying
Sterlington to Tallulah 115 kV line to exceed its thermal rating.
Proposed Solution:
•
Install a 115 kV, 10Ω series reactor at Delhi.
Proposed In-Service Date: Summer 2010
3
Delhi Reactor
FROSTCRAFT
Delhi: Add 10Ω
Series Reactor
RILLA
Proposed ISD: 2010
4
NW Louisiana/South Arkansas Voltage
Support Plan
Scenario:
•
•
•
The following single contingencies will result in low voltages to occur in the southwestern corner of the EAI service
territory:
– Loss of the Magnolia East - McNeil line segment
– Loss of the Magnolia Steel - Magnolia East line segment
– Loss of the Magnolia Steel - Kerlin S.S. line segment
Additionally the contingency outage of any of the following lines:
– 115 kV line from Carroll to RingGold
– 115 kV line from Trussel Crossing to Vienna
– 115 kV line from Vienna to Mount Olive
– 115 kV line from Springhill to Taylor
– 115 kV line from Haynesville to Emerson
– 115 kV line from Danville to Jonesboro
Results in low voltage concerns in north Louisiana
Capacitor bank additions alone do not provide sufficient voltage improvement to this region.
The transmission grid performance can be improved by providing a new EHV source to the area.
Proposed Solution:
•
•
•
•
Construct a new 345 -115 kV station at Sarepta by tapping the El Dorado to Longwood 345kV line
Install a 21.6 MVAR capacitor bank at Emerson (sized at 21.6 MVAR but only installing 10.8 MVAR)
Install a 32.4 MVAR cap bank at Lucky
Install a 32.4MVAR cap bank at Vienna
Proposed In-Service Date: 2011
5
Emerson /
Sarepta Area
Proposed ISD: 2011
Emerson: 21.6 MVAr
sized Capacitor Bank
with 10.8 MVAr installed
Sarepta: Build 345 115kV substation; Tap
El Dorado-Longwood line
6
Lucky /
Vienna Area
Proposed ISD: 2011
Cap Bank
Installations
7
Ouachita Transmission Service
Scenario:
•
Transmission Service
Proposed Solution:
Upgrades required for transmission service
•
Split the Sterlington 115kV bus and replace Sterlington autotransformer #2 with a 500-115 kV, 750
MVA auto.
•
Relocate existing Sterlington 500/115kV auto #2 to Baxter Wilson (EMI).
•
Install 43.2 MVAR capacitor bank at Riser.
•
Upgrade sections of the Frostkraft-Rilla 115kV line to 954 ACSR by rebuilding 2.3 out of 7.8 miles.
•
Upgrade Walnut Grove-Structure 49 115kV line section (5 mile section of Walnut Grove-Swartz
115kV line) to 1590 ACSR conductor.
•
Upgrade Sterlington-IPCO 115kV line to 1590 ACSR by rebuilding 5.5 out of 7.8 miles.
•
Upgrade IPCO-Bastrop 115kV line to 1590 ACSR by rebuilding all 4.2 miles.
•
Upgrade Bastrop-N. Bastrop Tap-Log Cabin 115kV to 1272 ACSR by rebuilding all 5.8 miles
•
Upgrade breakers at Vicksburg and Baxter Wilson 115 kV substations (EMI).
•
North Bastrop Reliability Project: Cut North Bastrop into the Sterlington-North Crossett 115kV line by
constructing 7 miles of double-circuit line with 1272 ACSR conductor.
Proposed In-Service Date: 2012
8
Ouachita
Transmission
Service
Proposed ISD: 2012
Loop Sterlington to North
Crossett into North Bastrop
Split Sterlington 115 kV
FROSTCRAFT
bus and replace 500-115
auto #2 with 750 MVA
Upgrade Sterlington to
Log Cabin 115 kV line
RILLA
Riser 43.2 MVAR
Cap Bank
Upgrade Walnut Grove
to Swartz 115 kV line
Upgrade Frostcraft
to Rilla 115 kV line
9
Identified Target Areas Beyond 2013
West Monroe / Monroe Area
Delhi/Tallulah area
Minden Area
Wells
Red Gum
10
Identified Target Areas Beyond 2013
•
Minden Area Improvement
–
–
–
•
West Monroe/Monroe Reliability Improvements
–
–
–
•
Long range project targeted to increase reliability
Energize 115kV lines built according to 230kV standards to 230kV level
Complete a 230kV loop around Monroe
Red Gum Voltage Improvement
–
–
–
•
Long range project to increase reliability in the Minden area
Re-conductor Minden to Minden LaGen
Add 32.4 MVAR capacitor bank at Minden
Long range project targeted to increase reliability
Energizing 34kV line built according to 115kV standards to 115kV level
Add a cap bank for voltage support at Winnsboro
Delhi to Tallulah Area
–
–
Long range plan to increase reliability to the 115 kV service area
Either construct an EHV source to support the underlying 115 kV area or upgrade various
115 kV lines.
11
Entergy Louisiana, LLC (South) &
Entergy New Orleans, Inc.
2010 to 2012 Draft Construction
Plan
Entergy Transmission Planning Summit
New Orleans, LA
August 11, 2009
12
2010-2012 ELL-South/ENOI Draft Construction Plan
Bogalusa-Adams Creek #2:
Upgrade 230kV breaker
(Proposed ISD Winter 2010)
Bogue Chitto: Construct
500-230 kV Substation
and upgrade 230 kV line
(Proposed ISD 2013)
Loblolly-Hammond:
Build 230kV line
(Proposed ISD 2012)
Snakefarm-Kenner:
Upgrade thermal capacity
(Proposed ISD Winter 2010)
Paterson:
Restore 4 breakers
(Proposed ISD 2009)
Improve ASI Capability:
Phase II- Panama-Dutch Bayou (completed 2009)
Phase III- Coly-Vignes (completed 2009)
Conway-Bagatelle (completed 2009)
Bayou Steel-Tezcuco: Build
230kV Line (Proposed ISD 2012)
SELA Coastal Improvements
Phase II - Peters Rd-Oakville (Proposed ISD 2012)
Phase III – Oakville-Alliance (Proposed ISD 2012)
13
ELL-South
Paterson: Restore 4 Breakers
Scenario:
•
•
Paterson substation was flooded during Hurricane Katrina resulting in all
major transmission equipment being damaged. Prior to Katrina, Paterson
115kV bus terminated four 115kv transmission lines and operated as a hub
for the transmission system in the New Orleans area. Presently, the Paterson
115kV bus has been temporarily restored to operate in a split, east / west
bus configuration. The east bus is in series with the Chalmette 115kV and
the Sherwood Forest 115kV substations.
The west bus is in series with the Claiborne 115kV and the Pontchartrain
Park 115kV substations. Various single contingencies in the New Orleans
area result in overloads on portions of this west bus circuit.
Recommended Solution:
•
Re-build the Paterson 115kV substation to terminate four 115kV
transmission lines from Pontchartrain Park, Sherwood Forest, Chalmette and
Claiborne.
Proposed In-Service Date: Summer 2009
14
ENOI
Paterson: Restore 4 Circuit Breakers
Restore
Breakers
Proposed ISD 2009
15
Snakefarm-Kenner 115kV: Upgrade Thermal Capacity
Scenario:
• Studies indicate that loss of the Gypsy to Claytonia 115 kV line will result in
the Snakefarm to Kenner 115 kV line segment to exceed its thermal rating.
Recommended Solution:
• Upgrade the thermal rating of the Snakefarm to Kenner 115 kV line segement.
Proposed In-Service Date: Winter 2010
16
ELL-South
Snakefarm-Kenner 115kV: Upgrade Thermal Capacity
Upgrade
Proposed ISD Winter 2010
17
ELL-South / ENOI
Bogalusa-Adams Creek #2 230kV:
Upgrade Terminal Equipment at Bogalusa
Scenario:
• Studies indicate that the Adams Creek to Bogalusa #2 230kV line will exceed
its thermal rating upon the loss of the Adams Creek to Bogalusa #1 230kV
line.
Recommended Solution:
• Increase the thermal rating of the Adams Creek to Bogalusa #2 230 kV line.
Project will require the upgrade of breaker #S2520 and switches at the
Bogalusa substation from 1600A to 3000A. The jumpers between the switches
will be upgraded to meet or exceed the existing 883 MVA thermal line rating
of the Adams Creek to Bogalusa line.
Proposed In-service Date: Winter 2010
18
ELL-South
Bogalusa-Adams Creek #2 230kV:
Upgrade Terminal Equipment at Bogalusa
Upgrade
Terminal
Equipment
To Fancy
Point
McKnight
To SOCO’s
Plant Daniel
To Coly
Proposed ISD Winter 2010
19
ELL-South / EGSI-LA
Loblolly-Hammond:
Construct 230 kV Substation and Line
Scenario:
•
Entergy’s transmission system north of Lake Pontchartrain is primarily
supported from the ELL 230kV system between Willow Glen and Waterford.
– Loss of the Franklin-McKnight 500kV line, or certain other transmission
contingencies, causes overloads on the underlying transmission system, primarily
on the Gypsy-Madisonville 230kV line.
– Adding another 230kV source from a location north of Willow Glen reduces loading
on the existing system and improves load serving capability north of Lake
Pontchartrain and into south Mississippi.
Recommended Solution:
• Construct a new 230 kV line from Loblolly to Hammond utilizing the existing
Coly to Hammond 69 kV line (constructed for 230kV).
Proposed In-Service Date: 2012
20
ELL-South
Loblolly-Hammond: Construct new 230 kV Line
To
Franklin
To Fancy
Point
McKnight
To SOCO’s
Plant Daniel
To Coly
Build new
230kV line
Coly
Loblolly
Proposed ISD 2012
21
ELL-South / EGSI-LA
Southeast Louisiana Coastal Improvement Plan:
Construct New Peters Road-Oakville-Alliance 230 kV Line
Scenario:
• The primary transmission sources to lower Lafourche, Lower Jefferson, and Plaquemines
Parishes are the Ninemile and Valentine substations. Additionally, upper Plaquemines
Parish, including Belle Chasse and the Naval Air Support facility, is experiencing growth
after Hurricane Katrina.
• For the contingency loss of the Ninemile-Barataria 115kV or the Valentine-Clovelly
115kV lines, potential low voltages and line overloads will occur.
• Construction of a new 230 kV source into the area will provide the additional thermal
capacity needed to serve the Alliance area.
Recommended Solution:
• Peters Road-Oakville 230kV
–
–
•
Build a new 230kV substation at Oakville and a new radial 230kV line from Peters
Road to Oakville Substation.
Proposed In-Service Date: 2012
Oakville-Alliance 230 kV
–
–
Construct a new 230kV transmission line from Oakville substation to Alliance
substation. Add a 150MVA 230/115kV auto at Alliance substation. This project also
provides support for the Fourchon area.
Proposed In-Service Date: 2012
22
ELL-South
SELA Ph #2 - Peters Road-Oakville 230kV: Build new line and substation
SELA Ph #3 - Oakville-Alliance 230 kV: Build new line
Build 230kV
Line & Sub
Peters Rd.
Build 230kV
230kV
LineBuild
& Auto
Line & Auto
Oakville
Proposed ISD 2012
23
ELL-South
Bayou Steel to Tezcuco: Construct New 230kV Line
Scenario:
• Studies indicate that the Belle Point-Little Gypsy 230kV transmission line
exceeds its thermal rating due to the contingency loss of the WaterfordTezcuco 230kV transmission line. Additionally, the Waterford-Tezcuco 230kV
transmission line will exceed its thermal rating due to the contingency loss of
the Belle Point – Little Gypsy 230 kV transmission line.
Recommended Solution:
• Construct approximately 10.7 miles of new 230 kV transmission line composed
of 954 ACSR conductor from Bayou Steel to Tezcuco to provide a parallel 230
kV line.
Proposed In-Service Date: 2012
24
ELL-South
Bayou Steel to Tezcuco: Construct New 230kV Line
Bayou Steel
Build new
230kV line
Proposed ISD 2012
25
ELL-South / EGSI-LA
Bogue Chitto: Build a new 500/230kV substation and upgrade 230kV line
from Bogue Chitto-Ramsay-Madisonville
Scenario:
•
Loss of the Franklin to Bogalusa 500kV line results in increased flows on the underlining
115kV system in South Mississippi and ties to North Shore as the 500 kV north to south
path is interrupted. Two options are being evaluated to address the impacts on the
underlying 230 kV and 115 kV transmission systems in the Louisiana northshore and
south Mississippi areas.
Proposed Solution:
• Option 1: Either tap the 500kV line from McKnight to Daniel-MPCO near where the
500kV line crosses the two 230kV lines from Bogalusa to Ramsay to Madisonville and
Bogalusa to Talisheek. Construct a new 500-230kV Bogue Chitto substation. Upgrade
the 230 kV Bogue Chitto to Ramsay to Madisonville 230 kV line
- OR • Option 2: Loop the existing Mcknight to Daniel-MPCO 500 kV line in and out of the
Bogalusa 500 kV substation.
Project will require coordination with neighboring utilities
Proposed In-Service Date: 2013
26
ELL-South
Bogue Chitto: Option 1
Construct a new 500/230kV substation and upgrade 230kV line
To
Franklin
Build new
230kV
substation
To Fancy
Point
McKnight
To Coly
Upgrade
230kV line
27
To SOCO’s
Plant Daniel
ELL-South / EGSI-LA
Bogue Chitto: Option 2
To
Loop Franklin
McKight
to Daniel 500 kV line into Bogalusa
Construct
500 kV
facilities
To Fancy
Point
McKnight
To SOCO’s
Plant Daniel
To Coly
28
ELL-South / EGSI-LA
ELL-South and ENOI Target Areas 2013 and Beyond
Claytonia 115 kV:
Install capacitor bank
Paterson:
Install 230/115kV auto
Napoleonville: Install 21MVAR
Capacitor Bank
Clovelly - Golden Meadow:
Upgrade 115kV Line
29
DSG: Phase III
Identified Target Areas Beyond 2013
ELL-S / ENOI
•
Napoleonville Voltage Support
– Add capacitor bank to area for voltage support
•
Golden Meadow to Clovelly
– Either upgrade existing 115 kV line or construct additional 115 kV line in the area.
•
Paterson
– Add 230-115 kV autotransformer at Paterson
•
DSG Phase 3
– Convert/reconfigure facilities in the DSG area to provide additional 230 kV tie
between Waterford and Ninemile
•
Claytonia Voltage Support
– Add capacitor bank to area for voltage support
30
Entergy Gulf States Louisiana,
LLC
2010 to 2012 Draft Construction Plan
Entergy Transmission Planning Summit
New Orleans, LA
August 11, 2009
31
Entergy Gulf States Louisiana, LLC
2010 to 2012 Draft Construction Plan Projects
Acadia Capacitor Bank
Installation
(Complete)
Tejac to Marydale: Upgrade 69 kV line
(Proposed ISD 2012)
Carter and Elton
Capacitor Bank
Installation
(Proposed ISD 2010)
Addis to Cajun: Upgrade
230 kV line
(Proposed ISD 2011)
Nelson to Mossville:
Upgrade 138 kV line
(Proposed ISD 2013)
Willow Glen to Conway:
Consturct New
230 kV Line
(Proposed ISD 2014)
Dynergy to Pecan
Grove: Construct 2nd
230 kV Line
(Proposed ISD 2012)
Youngsville 138 kV
Distribution Station
(Proposed ISD 2011)
Acadiana Area Improvement Project
Proposed ISD:
Phase 1 (2011)
Phase 2 (2012)
32
Alchem-Monochem: 138 kV
Line Upgrade
(Proposed ISD 2011)
Carter and Elton Capacitor Bank Installation
(formerly Jefferson Davis: 69 kV Area Improvements)
Scenario:
Approximately 90 MW of local area load is sourced by the 69kV transmission system
between Jennings and Chlomal (including the radial load to the south of Lawtag. The
primary "trunks" of the system are the Jennings-Compton-Elton-Tupper-SerpentChlomal 69 kV line and the Chlomal-Iowa-Welsh-Lawtag-Jennings 69 kV line.
• The contingency outage of a 69kV line segment between Jennings and Elton results in
the Chlomal to Lacassine 69kV line to exceed its thermal rating. Likewise, the
contingency outage of a 69 kV segment between Chlomal and Carter results in the
Jennings to Compton 69 kV line to exceed its thermal rating.
• The contingency outage of the Lawtag to Jennings 69 kV line results in the Lake Charles
Bulk to Chlomal 69 kV line and the Chlomal to Iowa 69 kV line segment to exceed their
thermal rating.
Recommended solution:
• Establish normally open point at Serpent and Lawtag. Proposed ISD: 2010
• Upgrade 69 kV capacitor bank at Elton to 14 MVAR, Install 69 kV, 14 MVAR capacitor
banks at Carter. Proposed ISD: 2010
33
NOP at Serpent
14.4MVAr Cap
Bank at Elton
14.4MVAr Cap
Bank at Carter
NOP at Lawtag
Proposed ISD: 2010
34
Youngsville 138 kV Distribution Station
(formerly Upgrade Lafayette-Holiday-Billeaud 69 kV line)
Scenario:
• There is approximately 141 MW of load in the area between Scott and
New Iberia. The Lafayette-Holiday-Billeaud line is currently rated at 39
MVA.
• Loss of Cleco’s Flanders to Hopkins 138kV Line, the Moril 138/69 kV
autotransformer, or the Moril to New Iberia 69 kV line will result in the
Lafayette to Holiday to Billeaud 69kV line to exceed its thermal rating.
Recommended Solution:
• Tap Cleco’s 138kV Flanders to Hopkins line and construct a new 138 13.8kV distribution substation to allow area load at Billeaud and Averico
to be shifted off of the existing 69 kV transmission system.
Proposed ISD: 2011
35
Construct new station.
Proposed ISD: 2010
Proposed ISD: 2011
36
Alchem - Monochem: Uprate 138 kV Line
Scenario:
• In the industrial corridor, the Alchem to Monochem 138kV line is part of a 138
kV path that operates parallel to Willow Glenn to Conway 230 kV line.
• The contingency loss any of the 230 kV segments from Willow Glen to
Vulchlor will result in the Alchem to Monochem 138 kV line to exceed its
thermal rating.
Recommended Solution:
• Uprate line to 100 deg C operating temperature by replacing 6 structures.
Project will increase rating of line from 225 MVA to 275 MVA.
Proposed In-Service Date: 2011
37
Alchem - Monochem: Uprate 138 kV Line
Uprate 138kV Line
Proposed ISD: 2011
38
Addis to Cajun Line Upgrade
Scenario:
In the winter of 2011, loss of the Webre to Big Cajun 500 kV line or the
Jaguar to Esso Tap 230 kV line results in the existing Addis to Cajun 230
kV line to exceed its thermal rating.
Recommended Solution:
Reconductor from structure 250 to 251 (0.06 miles) to double bundled
649.5 ACAR
Proposed In-Service Date: 2011
39
Addis to Cajun 230 kV Line Upgrade
Upgrade Line
Proposed ISD: 2011
40
Acadiana Area Improvement Project
Phase 1 and Phase 2
Scenario:
• Results of a long term joint study performed by Entergy, CLECO, LUS, and
the ICT determined a set of reliability and economic projects beneficial to
the Acadiana Load Pocket.
• Project was developed to be constructed in two phases.
Recommended Solution:
Phase 1 (Entergy Projects)
– Meaux Substation: Install 230 kV and 138kV terminals to connect 450MVA 230138kV autotransformer.
– Moril Substation: Install 138kV line terminal for Cleco’s Segura to Moril 138kV
Transmission Line.
– Richard Substation: Install 500kV terminal to connect Cleco’s 500-230kV 750MVA
autotransformer adjacent to Entergy’s Richard substation.
– Meaux to Sellers Road Transmission Line: Construct 9.5 miles of 439MVA (954
ACSR) 230kV Transmission line on new 100’ right-of-way. Cleco’s Sellers Road
line bay constructed by Cleco.
Proposed ISD: 2011
41
Acadiana Area Improvement Project
Phase 1 and Phase 2
Continued
Recommended Solution (continued):
Phase 2
– Wells Substation: Construct 500 kV terminal to connect CLECO’s owned and
installed 500-230 kV 560 MVA autotransformer.
– Labbe to Sellers Road 230 kV Line: Construct approximately 15 miles of 230kV 829
MVA line from LUS's Labbe 230 kV Substation to CLECO's Sellers Road Substation.
Labbe 230 kV line bay and breaker constructed by LUS. Sellers Road 230 kV line
bay and breaker constructed by CLECO.
– Upgrade 69 kV breaker at Scott and 69 kV breaker at Moril.
Proposed ISD: 2012
42
Acadiana Area Improvement Project
Phase 1 and Phase 2
Proposed ISD: 2011 / 2012
43
Pecan Grove to Dynegy (Calcasieu)
Scenario:
Loss of the 1.7 mile, Pecan Grove to Dynegy 230 kV line will result in the Nelson
to Moss Bluff 230kV line segment (Lake Charles 230 kV loop) to exceed its
thermal rating.
Recommended Solution:
• Construct a second 230kV line with a minimum rating of 641 MVA form Pecan
Grove to Dynegy.
• Install breakers at Pecan Grove and Dynegy.
Proposed In-Service Date: 2012
44
Pecan Grove to Dynegy (Calcasieu)
Proposed ISD: 2012
Construct 2nd 230kv
Line
45
Tejac to Marydale
Scenario:
• The 69 kV transmission system north of Port Hudson substation serves 12
substations.
• The Tejac to Marydale 69 kV line segment will exceed its thermal rating due
to the loss of Port Hudson - Sandy Creek - Jackson or Francis - Grant - Port
Hudson.
Recommended Solution:
• Upgrade the 3 mile Tejac to Marydale 69kV line segment to a rating of at
least 69 MVA
Proposed In-Service Date: 2012
46
Tejac to Marydale
Upgrade 69kv Line
Proposed ISD: 2012
47
Nelson to Mossville
Scenario:
• Loss of the Carlyss to Citcon West 138 kV line will result in Nelson to
Mossville 138 kV line to exceed its thermal rating.
Recommended Solution:
• Upgrade the 3.3 mile Nelson to Mossville 138 kV line to at least 380 MVA.
Proposed In-Service Date: 2013
48
Nelson to Mossville
Upgrade 138kv Line
Proposed ISD: 2013
49
Willow Glen to Conway 230 kV line
Scenario:
• Loss of the Willow Glen to Waterford 500 kV or the Coly to Vignes 230 kV line
results in the St. Gabriel to A.A.C. to Belle Helene 230 kV line to exceed its
thermal rating.
Recommended Solution:
• Construct a new 230kV line from Willow Glen to Conway (approximately 15
miles) with a minimum rating of at least 700 MVA.
Proposed In-Service Date: 2014
50
Willow Glen to Conway 230 kV line
WILLOW GLEN
Construct NEW
230kv Line
CONWAY
Proposed ISD: 2014
51
Identified Target Areas Beyond 2013
Baton Rouge Area
•Port Hudson
•Harelson – Gloria Area
•McManus – Brady Heights
•Jackson – Tejac
•Greenwell Springs Area
Acadiana Area
•Moril Add 138–69 kV Auto
•Scott – Carencro 69 kV
•Champagne 138 kV
Lake Charles Area
•Solac Add Auto
•Lawtag – Jennings 69 kV upgrade
•Lake Charles Bulk Add Auto
•LC Bulk - Cholomal – Lacassine 69 kV upgrade
•Lake Charles 230 kV Improvement
•Mossville to Alfol 69 kV
52
Identified Target Areas Beyond 2013
Baton Rouge Area
•
Port Hudson
– Long range project targeted to increase reliability of 69kV system
– Reconfigure 69kV station and/or bring in a new 138kV source
•
Harelson – Gloria
– Long range project targeted to increase reliability of 69kV system
– Upgrade 69kV line
•
McManus – Brady Heights
– Long range project targeted to increase reliability of 69kV system
•
Jackson – Tejac
– Long range project targeted to increase reliability of 69kV system
•
Greenwell Springs Area Reconfiguration
– Long range project targeted to increase reliability of 69kV system
– Upgrade overloaded 69kV lines or relay upgrade to allow for three terminal lines
53
Identified Target Areas Beyond 2013
Baton Rouge Area
McManus – Brady Heights
Upgrade
Jackson – Tejac
Upgrade
Greenwell Springs Area
Reconfiguration
Line or Relay Upgrades
Port Hudson – Reconfigure
or new source
Harelson – Gloria
Upgrade
54
Identified Target Areas Beyond 2013
Acadiana Area
•
Moril
– Add 2nd 138/69kV autotransformer to eliminate contingency loss of existing auto
•
Scott – Carencro
– Long range project targeted to increase reliability of 69kV system
– Upgrade 69kV line
•
Champagne
– Long range project to provide voltage support during contingency outages
– Add 138 kV Capacitor Bank
55
Identified Target Areas Beyond 2013
Acadiana Area
Champagne
138 kV Cap Bank
Moril
Add Autotransformer
Scott – Carencro
69 kV Upgrade
56
Identified Target Areas Beyond 2013
Lake Charles Area
•
Solac
– Long range project targeted to increase reliability of 69kV system
– Upgrade 230-69 kV autotransformers or add 3rd auto
•
Lawtag – Jennings
– Long range project targeted to increase reliability of 69kV system
– Upgrade 69kV line
•
Lake Charles Bulk Autotransformer and upgrade 69 kV lines
– Long range project targeted to increase reliability of 69 kV system
– Add 3rd 138-69 kV autotransformer
– Upgrade Lake Charles Bulk to Chlomal to Lacassine 69 kV lines
•
Lake Charles 230 kV Improvement
– Long range project targeted to increase reliability of 230 and 138kV system
– Build a new 230kV line from Nelson towards LC Bulk and 230-138kV station to
create 230kV loop
•
Mossville to Alfol 69 kV
57
Identified Target Areas Beyond 2013
Lake Charles Area
Lake Charles
Improvement
230kV Loop
LC Bulk – Add 3rd Auto
LC Bulk – Chlomal
Re-conductor
Solac
Upgrade or add Auto
Cholomal – Lacassine
Upgrade line & install
breaker
58
Lawtag – Jennings
Upgrade
Entergy Texas, Inc.
2010 to 2012 Draft Construction
Plan
Entergy Transmission Planning Summit
New Orleans, LA
August 11, 2009
59
2010 to 2012 ETI Transmission
Draft Construction Plan
WRRIP 3 Interim:
Part 1 - Relocate Caney Creek Proposed ISD Winter 2010
Part 2 – Convert Jacinto to Lewis Creek Proposed ISD Summer 2011
Part 3 – Upgrade S Beaumont to Fontenot’s Corner 138 kV line
Proposed ISD Winter 2010
College Station Tap: Close
N.O. Switch
Proposed ISD Winter 2010
Newton Bulk Retap CT
Proposed ISD Summer2009
College
Station
Fawil: Upgrade Auto
Proposed ISD Winter 2009
Cedar Hill – Plantation - Conroe: Upgrade
Line
Proposed ISD 2012
Tamina to Cedar Hill: Upgrade Line
Proposed ISD Winter 2011
Hartburg – McLewis 230kV
Line Upgrade
Proposed ISD 2011
Porter-Tamina:
Replace Breaker/Switches
Proposed ISD Winter 2009
60
Beaumont 69 kV Improvement
Plan
Proposed ISD Summer 2009
69 kV Beaumont Network Upgrades
Scenario:
• In the 69kV Beaumont area there exists several single contingency thermal
overloads including:
o
o
o
o
69kV Line 581 (Helbig – Rosedale)
69kV Line 468 (Elizabeth – Gallier)
230/69kV Helbig Autotransformers
69kV Bus Tie Breakers (Helbig & Amelia)
Recommended Solution:
• Add line breakers at Yankee Doodle 69kV Substation.
• Close normally open points at Lincoln and Crockett 69kV Substations.
• Rebuild 69kV Line 576 (Lincoln – South Beaumont) & 69kV Line 98/190
(Dupont Beaumont – South Beaumont) to 106MVA capacity.
o Approximately 5.5 miles of 69kV transmission lines
Proposed In-Service Date: Summer 2009
61
69 kV Beaumont Network Upgrades
CROCKETT
YANKEE
DOODLE
CLOSE N.O.
SWITCH
L-155
CLOSE N.O.
BREAKER
VIRGINIA
LINCOLN
Proposed ISD Summer 2009
L-458
CARDINAL
ADD LINE
BREAKERS
UPGRADE
LINE 576
L-458
LAMAR
CDT
NITRO
UPGRADE
LINE 190
DUPONT BEAUMONT
SOUTH BEAUMONT
BULK
UPGRADE
LINE 98
62
Newton Bulk: Re-tap CT
Scenario:
• The single contingency outage of the Cypress-Hartburg 500 kV line causes an
overload of the Newton Bulk-Holly Springs 138 kV line. The rating of this line
is limited to 143 MVA by a CT ratio at Newton Bulk.
Recommended Solution:
• Re-tap the CT at Newton Bulk to achieve a rating of 280 MVA on the line
Proposed In-Service Date: Summer 2009
63
Newton Bulk: Re-tap CT
Proposed ISD Summer 2009
64
Fawil: Replace 138/69 kV Autotransformer
Scenario:
• Contingency events along 69 kV Line 81 (Fawil-Deweyville-Echo) cause loads
on Line 81 to be served radially through the Fawil 138/69 kV autotransformer,
resulting in overloads on the transformer during peak load conditions. The
transformer is currently rated at 20 MVA.
Recommended Solution:
• Replace the autotransformer with a system spare 138/69 kV, 45 MVA unit,
located at Meaux substation in Louisiana.
• Add two 138 kV breakers to ensure reliable operation
Proposed In-Service Date: Winter 2009
65
Fawil: Replace 138/69 kV Autotransformer
Proposed ISD Winter 2009
66
Porter-Tamina: Replace Breaker/Switches
Scenario:
• 138 kV Line 823/886 (Porter – Tamina - Cedar Hill) is one of the primary
sources into Montgomery County.
• The single contingency loss of 138 kV Line 582 (Oak Ridge - Porter) causes
thermal overloads on 138 kV Line 823 (Porter to Tamina).
Recommended Solution:
• Upgrade station equipment at Tamina, including a breaker, switches, and bus,
to bring rating of Line 823 Porter-Tamina up to 478 MVA capacity.
Proposed In-Service Date: Winter 2009
67
Porter-Tamina: Replace Breaker/Switches
UPGRADE TO
478 MVA
CAPACITY BY
REPLACING
TAMINA
EQUIPMENT
Proposed ISD Winter 2009
68
College Station Tap: Close N.O. Switch
Scenario:
• The single contingency outage of the Grimes-Navasota 138kV line causes
overloads along the Lewis Creek-Longmire 138kV line, as well as undervoltages
along the Navasota-Longmire 138kV line.
Recommended Solution:
• Close the normally-open switch between Speedway 138kV and the College
Station 138kV tap to bring another path from Grimes into Navasota
Proposed In-Service Date: Winter 2010
* Project has been delayed due to feasibility of implementing a three terminal
operating configuration. A three-breaker switching station at College Station is
being investigated as an alternative solution.
69
College Station Tap: Close N.O. Switch
COLLEGE
STATION TAP
N.O.
Proposed ISD Winter 2010
70
Western Region Reliability Improvement Plan
Phase 3 Interim (Parts 1 and 3)
Scenario:
• Load growth within the Western Region load pocket is such that
transmission improvements are necessary to reliably serve the area
under an N-1, G-1 contingency criteria
Recommended Solution:
•
•
Part 1 - Relocate Caney Creek load delivery point (ETEC-owned) to new
location on 138 kV Line 587 (Lewis Creek – Conroe)
Part 3 - Reconductor Line 88/66 from Fontenot’s Corner to South Beaumont
138 kV station [~9 miles]
Proposed In-Service Date: Winter 2010
Estimated Cost: $15 MM
71
Western Region Reliability Improvement Plan
Phase 3 Interim (Parts 1 and 3)
Upgrade Line
88/66
Relocate Caney
Creek 138kV to
Line 587
Proposed ISD Winter 2010
72
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 2)
Scenario:
• Load growth within the Western Region load pocket is such that
transmission improvements are necessary to reliably serve the area
under an N-1, G-1 contingency criteria
Recommended Solution:
•
•
•
Convert 138 kV Lines 524/824 (Jacinto-Lewis Creek) to 230 kV operation
[~30 miles]
Convert Peach Creek Substation (ETEC-owned) from 138 kV to 230 kV
Operation
Install 230 kV Substation at Lewis Creek including 230/138 kV
autotransformer
Projected In-Service Date: Summer 2011
73
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 2)
Convert Line
524/824
Proposed ISD Summer 2011
74
Hartburg-Inland Orange-McLewis
230 kV Line Upgrade
Scenario:
• 230 kV Line 195 (Hartburg – Inland Orange – McLewis) is one of the primary
sources into the Beaumont/Port Arthur area.
• The single contingency loss of 500 kV Line 547 (Cypress – Hartburg) causes
thermal overloads on Line 195.
Recommended Solution:
• Re-conductor approximately 13 miles of 230kV Line 195 (Hartburg – Inland
Orange - McLewis) and upgrade station equipment as necessary to achieve
800 MVA capacity along entire circuit.
Projected In-Service Date: Summer 2011
75
Hartburg-Inland Orange-McLewis
230 kV Line Upgrade
MCLEWIS
Proposed ISD Summer 2011
76
Tamina – Conroe 138kV Reconductor
Scenario:
• 138 kV Line 886 (Tamina – Cedar Hill – Plantation – Conroe) is one of the
primary sources into the Montgomery County load pocket.
• The single contingency loss of 138 kV Line 582 (Oak Ridge - Porter) causes
thermal overloads on 138 kV Line 886 (Tamina - Conroe).
Recommended Solution:
• Re-conductor approximately 10 miles of 138kV Line 886 (Tamina – Cedar Hill
– Plantation – Conroe) and upgrade station equipment as necessary to
achieve 478 MVA capacity along entire circuit.
Proposed In-Service Dates:
Winter 2011 (Tamina – Cedar Hill)
Summer 2012 (Cedar Hill – Plantation – Conroe)
77
Tamina – Conroe 138kV Reconductor
UPGRADE TO
478 MVA
CAPACITY
Proposed ISD: Tamina to Cedar Hill Winter 2011
Cedar to Plantation to Conroe Summer 2012
78
Reconductor Jasper-Rayburn
138 kV Line
Scenario:
• The single contingency outage of the Cypress-Hartburg 500 kV line
causes an overload of the Jasper-Rayburn 138 kV line
Recommended Solution:
• Reconductor the Jasper-Rayburn 138 kV line (approx. 13.5 miles) to
achieve a capacity of 265 MVA
Proposed In-Service Date: Summer 2013
79
Reconductor Jasper-Rayburn
138 kV Line
Proposed ISD Summer 2013
80
Identified Target Areas Beyond 2013
Corrigan/Cleveland/Kountze Area Improvements
• Shepard/Cleveland/Honey Island/Corrigan Capacitor Banks
• Upgrade Kountze to Warren 138 kV
• Upgrade Pelican Road to Shepard 138 kV
Lakes Area Improvements
• Mill Creek/Call/Doucette Capacitor Banks
• Upgrade Doucette to Rayburn 138 kV
• Upgrade Newton Bulk to Toledo 138 kV
Huntsville/Conroe Area Improvements
• Huntsville/Rivtrin Capacitor Banks
• Conroe Switching Station
• Alden SVC
Ameilia/Beaumont
Area Improvements
Cypress/Jacinto/Dayton Area Improvements
• Dayton/New Caney Capacitor Banks
• Ameila to Helbig 230 kV Upgrade
• Ameilia to Cypress 230 kV Upgrade
• 2nd China to Amelia 230 kV Line
• Orange County 230 kV Swithcing Station
• Sabine to Port Neches 138 kV Upgrades
• Upgrade Dayton to Cleveland 138 kV
• Upgrade Dayton to Eastgate 138 kV
• Upgrade Jacinto to Porter 138 kV
• Upgrade Jacinto to Cleveland 138 kV
• WRRIP Phase 3 Final
• 2nd Cypress Auto
• Upgrade Cypress to Lumberton 138 kV
81