Transcript Transmission Template

Energy Delivery
Entergy
Entergy
Entergy
Entergy
Entergy
Entergy
Louisiana, LLC
New Orleans, Inc.
Gulf States Louisiana, L.L.C.
Texas, Inc.
Arkansas, Inc.
Mississippi, Inc.
Draft 2011 – 2013 Construction Plan Projects Update 1
Entergy Transmission Planning Summit
New Orleans, Louisiana
August 11, 2010
1
Energy Delivery
2011 – 2013 Draft Construction Plan Projects Update 1
• 113 listed CP projects which include:
–
–
–
–
–
–
10 Autotransformer projects
18 new transmission line projects
41 line upgrade projects
9 new substation projects
23 capacitor bank additions
16 substation expansion, reconfiguration or
equipment addition/upgrade projects
2
Energy Delivery
2011 – 2013 Draft Construction Plan Projects Update 1
Horizon Projects
•
•
•
New section
Projects identified in the annual 10 year reliability assessment but
are not included in the current three year construction plan window
CP projects and Horizon Projects combined is designed to represent
Entergy’s long term (10 year) transmission reliability plan
3
Energy Delivery
Entergy Arkansas, Inc.
Transmission
2011 – 2013 Draft Construction
Plan Projects Update 1
4
Energy Delivery
2011-2013 EAI Draft Construction Plan Projects
1) Transmission Service
(SMEPA): Upgrade
Lines
2) Donaghey to Conway
South: Upgrade Line
10) Ebony Phase 1: Install
5 Breaker Ring Bus
11) Transmission Service
(Aquila): Upgrade
Line
8
3) Beebe: Install
Capacitor Bank
15 1
4
4) Melbourne to Sage:
Upgrade Line
5) Warren East: Install
Capacitor Bank
6
7
16
2
6) Parkin: Upgrade Line
Trap
14
7) Transmission Service
(OG&E): Upgrade
Lines
13
8) Osage Creek to
Grandview: New
Line
9) Holland Bottoms
(Phases 1&2):
Construct
500/161/115 kV
Substation
13) Poyen: Install
Capacitor Bank
12
15
7
18
9
9
3
12) Jonesboro to Hergett:
Upgrade Line
10
14) Benton North to
Benton South: New
Line
15) Transmission Service
(Westar): Upgrade
Lines
1
11
17
5
16)Mayflower:
Reconfigure 500kV
Bus
17) Fordyce: Install Line
Switch
18) Holland Bottoms to
Hamlet: New Line
2010 ISD 2011 ISD 2012 ISD 2013 ISD 2014 ISD
5
Energy Delivery
Donaghey to Conway South: Upgrade Line
& Hamlet: Install Breaker on Conway Industrial Line
10CP-EAI-006
Scenario:
• Loss of the Helena Industrial to Ritchie SES 115 kV line segment causes low
voltages at various substations
• Loss of the Pleasant Hill to Quitman 161 kV line segment causes an overload
on the Conway West to Donaghey and Donaghey to Conway South 161kV
transmission line sections. The Conway West to Donaghey line has been
upgraded.
• The Pleasant Hill to Quitman line and the Morrilton East to Quitman line are
subjected to unanticipated transactions which tend to overload the Morrilton
East to Quitman line for the loss of the Pleasant Hill to Quitman line.
Proposed Solution:
• Re-conductor Donaghey to Conway South
• Install a breaker at Hamlet Switching Station to remove the overloads caused
by the loss of Pleasant Hill to Quitman. This is an interim measure until a line
can be constructed from Holland Bottoms to Hamlet in 2012.
Proposed In Service Date: Complete
6
Energy Delivery
Donaghey to Conway South: Upgrade Line
& Hamlet: Install Breaker on Conway Industrial Line
10CP-EAI-006
Donaghey to Conway
South: Upgrade Line
Hamlet: Install
Breaker on Conway
Industrial Line
Proposed In Service Date: Complete
7
Energy Delivery
Transmission Service (SMEPA): Upgrade Lines
10CP-EAI-007 1-4
Scenario:
•
SMEPA transmission service
Proposed Solution:
•
Upgrades required for transmission service:
– Re-conductor Dell to AECC Manila 161 kV Transmission Line
– Re-conductor AECC Manila to Monette 161 kV Transmission Line
– Re-conductor Jonesboro North to Paragould South 161 kV Transmission Line
– Re-Conductor Jonesboro to Jonesboro North 161 kV Transmission Line
Proposed In Service Date: Complete
8
Energy Delivery
Transmission Service (SMEPA): Upgrade Lines
10CP-EAI-007 1-4
Re-Conductor the 161
kV Transmission Line
from Jonesboro North
to Paragould South
Re-Conductor the 161
kV Transmission Line
from AECC Manila to
Monette
Re-Conductor the 161
kV Transmission Line
from Jonesboro to
Jonesboro North
Proposed In Service Date: Complete
9
Re-Conductor the 161
kV Transmission Line
from Dell to AECC
Manila
Energy Delivery
Beebe: Install Capacitor Bank
10CP-EAI-008
Scenario:
•
The loss of the Cabot to Ward 115 kV Transmission line segment causes low
voltages along line 937. Line 937 breaker to breaker is from Jacksonville
North to Searcy Price. Since there is a capacitor bank at Cabot, the loss of
Jacksonville to Cabot is not as severe. The Cabot capacitor bank is 32.4
MVAR (30.53 MVAR at 115 kV).
Proposed Solution:
•
Install a 21.6 MVAR, 115 kV capacitor bank at Beebe Substation.
Proposed In Service Date: Complete
10
Energy Delivery
Beebe: Install Capacitor Bank
10CP-EAI-008
Beebe: Install 21.6
MVAR Capacitor
Bank
Proposed In Service Date: Complete
11
Energy Delivery
Melbourne to Sage 161 kV: Upgrade Line
10CP-EAI-009
Scenario:
•
•
•
•
The following contingencies cause the Melbourne to Sage 161kV line
segment to overload in the Winter 2010 Planning Models:
Loss of ANO to Fort Smith 500kV
Loss of ISES to Dell 500kV
Newport to Jonesboro 161kV
Proposed Solution:
•
Re-conductor the Melbourne to Sage 161kV Transmission line segment to a
minimum of 1200 Amps.
Proposed In Service Date: Complete
12
Energy Delivery
Melbourne to Sage 161 kV: Upgrade Line
10CP-EAI-009
Re-Conductor the 161
kV Transmission Line
from Melbourne to
Sage
Proposed In Service Date: Complete
13
Energy Delivery
Warren East: Install Capacitor Bank
10CP-EAI-010
Scenario:
•
The Warren East is a substation which is located in southeastern Arkansas,
northeast of El Dorado. This is a long radial line fed from Monticello East
and El Dorado EHV which is approximately 61 miles. Loss of any of the line
segment along this line results in low voltage. Also, voltages in this area
drop during the loss of the 500/115 kV at El Dorado EHV.
Proposed Solution:
•
Install a 10.8 MVAR capacitor bank to the operating bus at the Warren East
substation.
Proposed In Service Date: Complete
14
Energy Delivery
Warren East: Install Capacitor Bank
10CP-EAI-010
Warren East: Install
10.8 MVAR Capacitor
Bank
Proposed In Service Date: Complete
15
Energy Delivery
Parkin: Upgrade Line Trap
Scenario:
•
10CP-EAI-011
The Marked Tree to Parkin 161 kV Transmission line overloads for the
following contingencies: West Memphis EHV to West Memphis Lehi, West
Memphis Lehi to Ebony SS and Ebony SS to Marion. The limit on the Parkin
to Twist line is 112 MVA and the limit on the Twist to Marked Tree is 165
MVA. The limiting element on the Parkin to Twist line is a 400 Amp Line Trap.
Proposed Solution:
•
Replace the 400 Amp line trap at Parkin with a line trap rated no less than
800 Amps.
Proposed In Service Date: Summer 2010
16
Energy Delivery
Parkin: Upgrade Line Trap
10CP-EAI-011
Parkin: Upgrade Line
Trap
Proposed In Service Date: Summer 2010
17
Energy Delivery
Transmission Service (OG&E): Upgrade Lines
10CP-EAI-012 1-2
Scenario:
•
OG&E Transmission Service
Proposed Solution:
•
ANO - Russellville North 161 kV: Line Upgrade (Complete)
•
Russellville East to Russellville S 161 kV: Line Upgrade (Complete)
•
ANO EHV Substation: Upgrade Switch (Complete)
•
Russellville North 161 kV Substation: Upgrade Switch (Complete)
•
Russellville East 161 kV Substation: Upgrade Switch (Complete)
•
Russellville South 161 kV Substation: Upgrade Switch (Complete)
•
Russellville East 161 kV Substation: Re-tap CT (Fall 2010)
Proposed In Service Date: Summer 2010
18
Energy Delivery
Transmission Service (OG&E): Upgrade Lines
10CP-EAI-012 1-2
Re-Conductor the 161 kV
Transmission Line from
ANO to Russellville North
(Complete)
Russellville East
Re-tap CT
(Fall 2010)
Re-Conductor the 161 kV
Transmission Line from
Russellville East to
Russellville South
(Complete)
Proposed In Service Date: Summer 2010
19
Energy Delivery
Osage Creek to Grandview: New Line
10CP-EAI-013
Scenario:
•
By 2010, it is estimated that approximately 227 MW of load will be served
between Harrison East and Eureka Springs.
•
Loss of the Harrison East to Harrison South transmission line segment results
in a thermal overload of the Eureka to Osage Creek (AECC) line segment.
•
Loss of this line also results in low voltage at key load centers.
Proposed Solution:
•
Construct a new switching station, Grandview, on the transmission line from
Table Rock Dam to Eureka Springs. Build a new line between Grandview and
Osage Creek.
Proposed In Service Date: Summer 2011
20
Energy Delivery
Osage Creek to Grandview: New Line
10CP-EAI-013
Grandview 161
kV Substation
Grandview to Osage Creek
161 kV Line: Construct
New Line
Proposed In Service Date: Summer 2011
21
Energy Delivery
Holland Bottoms: Construct 500/161/115 kV
Substation
Scenario:
10CP-EAI-015 1-2
•
For the past two summers, several stations in Little Rock observed low voltages with
no significant contingencies.
•
The loss of one of the 500/115 kV transformers at Mabelvale in 2006 resulted in low
voltages in the Little Rock area during periods where heavy flows to the north were
occurring.
•
A loss of the second transformer at Mabelvale (N-2) could result in widespread low
voltage in the Little Rock area.
Proposed Solution:
•
Phase 1: Construct a 500/115kV substation near Cabot Northeast of Little Rock. This
will provide voltage support to Little Rock and reduce some thermal contingencies.
•
Phase2: Install 161 kV Bus and a 600 MVA 500 kV / 161 kV Autotransformer. This will
provide a strong source into Conway from the East. The 161kV at Holland Bottoms will
also provide a long term conversion of the 115kV to North Little Rock and to Searcy
Price.
Proposed In Service Date: 2011 (Phase 1), 2012 (Phase2)
22
Energy Delivery
Holland Bottoms: Construct 500/161/115 kV
Substation
10CP-EAI-015 1-2
Holland Bottoms
500/161/115 kV
Substation
Proposed In Service Date: 2011 (Phase 1), 2012 (Phase 2)
23
Energy Delivery
Transmission Service (Aquila): Upgrade Lines
10CP-EAI-016 1-3
Scenario:
•
Aquila Transmission Service
Proposed Solution:
•
•
•
•
•
Project definitions will be completed for the following Base Plan Projects:
Hot Springs EHV to Bismarck 161kV T-line upgrade
Bismarck to AECC Alpine 161 kV T-line Upgrade
AECC Alpine to Amity Tap 161 kV T-line Upgrade
Bismarck Substation Upgrades
Proposed In Service Date: Winter 2011
24
Energy Delivery
Transmission Service (Aquila): Upgrade Lines
10CP-EAI-016 1-3
Re-Conductor the 115
kV Transmission Line
from Bismarck to
AECC Alpine
Re-Conductor the 115
kV Transmission Line
from Hot Springs EHV
to Bismarck
Re-Conductor the 115
kV Transmission Line
from AECC Alpine to
Amity SS
Proposed In Service Date: Winter 2011
25
Energy Delivery
Holland Bottoms - Hamlet: New Line
Scenario:
•
10CP-EAI-017
The loss of the 161 kV transmission line from Pleasant Hill to Quitman causes
an overload on the Conway West to Donaghey and Donaghey to Conway
South 161 kV transmission line sections. There are two key 161 kV
transmission lines sensitive to daily and long term/firm transactions in the
area north and northwest of Little Rock. One of the lines runs through the
City of Conway (Morrilton East to Quitman) and the other is north of Conway
(Pleasant Hill to Quitman). In the event the Pleasant Hill to Quitman line is
outaged the Morrilton to Conway West to Quitman 161 kV line remains as the
primary line to accomodate both the load in the Conway area and
transactions flowing North.
Proposed Solution:
•
•
•
•
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 from Hamlet SS to Holland Bottoms with a rating no less
than 1200 Amps
Proposed In Service Date: 2012
26
Energy Delivery
Holland Bottoms to Hamlet: New Line
10CP-EAI-017
Hamlet: Convert to a
breaker station
Construct a new 161 kV
Transmission Line from
Holland Bottoms to
Hamlet
Holland Bottoms
Proposed In Service Date: 2012
27
Energy Delivery
Ebony: Install a 5 Breaker Ring Bus
Scenario:
10CP-EAI-018
•
The loss of West Memphis EHV to West Memphis Polk causes low voltages at
WM Polk and WM Lehi. To prevent this, Ebony SS will be converted to a
breaker station.
•
Ebony SS ties together Kuhn Road, WM Gateway, Marked Tree, WM Lehi and
WM Polk. The current configuration has Marked Tree to WM Lehi bypassing
the switching station. This also prevents a creation of an operational guide
for the TOC to remove the low voltages condition if an event should occur.
Proposed Solution:
•
Convert Ebony SS to a 5 breaker station (Single Bus Single Breaker Scheme).
Additional land may need to be purchased.
Proposed In Service Date: 2012
28
Energy Delivery
Ebony: Install a 5 Breaker Ring Bus
10CP-EAI-018
Ebony SS: Convert to a
5 Breaker Ring Bus
Proposed In Service Date: 2012
29
Energy Delivery
Jonesboro to Hergett: Upgrade Line
10CP-EAI-019
Scenario:
•
The loss of Jonesboro to Jonesboro SPA causes the Jonesboro to Hergett 161
kV Transmission Line segment to overload. Also the loss of the Marked Tree
to Harrisburg Tap 161 kV Transmission Line segment causes the Jonesboro
to Hergett 161 kV Transmission Line segment to overload.
Proposed Solution:
•
Re-conductor the Jonesboro to Hergett 161 kV Transmission line segment to
at least 240 MVA.
Proposed In Service Date: 2012
30
Energy Delivery
Jonesboro to Hergett: Upgrade Line
10CP-EAI-019
Re-Conductor the 161
kV Transmission Line
from Jonesboro to
Hergett
Proposed In Service Date: 2012
31
Energy Delivery
Poyen: Install Capacitor Bank
11CP-EAI-001
Scenario:
•
The loss of the Hot Springs EHV to Malvern North 115kV Transmission line
segment causes low voltages along line 968 at Gifford, Poyen, and Sheridan.
Proposed Solution:
•
Install a 21.6 MVAR capacitor bank to the operating bus at the Poyen
substation.
Proposed In Service Date: 2012
32
Energy Delivery
Poyen: Install Capacitor Bank
11CP-EAI-001
Poyen: Install 21.6
MVAR Cap Bank
Proposed In Service Date: 2012
33
Energy Delivery
Benton North to Benton South:
New Line
Scenario:
•
10CP-EAI-020
The loss of Mabelvale to Bryant 115kV Transmission Line segment causes low
voltages at Benton South, Bryant and Alcoa Road substations.
Proposed Solution:
•
•
•
•
Convert Benton South SS to a breaker stations (Single Bus Single Breaker
Scheme)
Convert Benton North SS to a breaker stations (Single Bus Single Breaker
Scheme)
Construct a line from Benton South to Benton North
The new line needs to be rated to at least 170 MVA
Proposed In Service Date: Winter 2012
34
Energy Delivery
Benton North to Benton South:
New Line
10CP-EAI-020
Benton North SS:
Convert to a breaker
station
Construct a new 115
kV Transmission Line
from Benton North to
Benton South
Benton South SS:
Convert to a breaker
station
Proposed In Service Date: Winter 2012
35
Energy Delivery
Transmission Service (Westar): Upgrade Lines
10CP-EAI-022 1-2
Scenario:
•
Transmission Service
Proposed Solution:
•
•
•
Re-conductor the Monette to Paragould 161 kV (Base Funding) Transmission
line segment to at least 246 MVA.
Upgrade the switch B6673 at Paragould substation from 600 A to 2000 A
Russellville South 161 kV Substation – Upgrade Dardanelle Dam Line
Terminal Equipment (Supplemental Funding) – Proposed upgrade to 416
MVA rating
Proposed In Service Date: Summer 2012
36
Energy Delivery
Transmission Service (Westar): Upgrade Lines
10CP-EAI-022 1-2
Upgrade Switch at
Paragould
Re-Conductor the 161 kV
Transmission Line from
Russellville South to
Dardanelle Dam
Re-Conductor the 161
kV Transmission Line
from Paragould to
Monette
Proposed In Service Date: Summer 2012
37
Energy Delivery
Mayflower:
Reconfigure 500 kV Bus
Scenario:
•
11CP-EAI-002
Failure of breaker B8105 at Mayflower 500 kV substation will remove both
500/115 kV autotransformers #1 and #2 from service and overload
autotransformer #3 124% in 2010, 112% in 2011 and 105% in 2012 and
108% in 2013. The reduction in contingency loading is due to Holland
Bottoms phase 1 in 2011 and phase 2 in 2012. However, after 2012, the
overloads will continue to increase as area load continues to grow.
Proposed Solution:
•
•
•
Construct a new breaker position on the 500 kV bus at Mayflower between
Switch B8114 and Breaker B8118
Purchase and install a new 3000 amp, 500 kV Breaker and associated
switches.
Move the Auto #2 high side node across Breaker B8118.
Proposed In Service Date: 2013
38
Energy Delivery
Mayflower:
Reconfigure 500 kV Bus
11CP-EAI-002
Mayflower: Reconfigure
500kV Bus
Proposed In Service Date: 2013
39
Energy Delivery
Fordyce Capacitor Bank:
Install Line Switch
Scenario:
•
11CP-EAI-003
In 2014, the loss of the 115 kV line from Fordyce to Camden North line
causes a low voltage condition at Fordyce. There is a capacitor bank at
Fordyce and it is installed on the line from Fordyce to Camden North on the
Breaden line section. The line section from Fordyce to Bearden can be
sectionalized but there are no switches such that the capacitor bank can be
re-energized while the line section is out of service.
Proposed Solution:
•
Install a 1200 amp line switch on the Fordyce to Bearden line section South
of the capacitor bank at Fordyce.
Proposed In Service Date: 2014
40
Energy Delivery
Fordyce Capacitor Bank:
Install Line Switch
11CP-EAI-003
Fordyce Cap Bank:
Install Line Switch
Proposed In Service Date: 2014
41
Energy Delivery
Transmission Horizon Projects
2014 and Beyond
1) NLR Levy to NLR Dixie:
Upgrade Line (2016)
7
2) Norfork to Calico Rock:
Upgrade line (2016)
10) Mayflower to
Morgan: Upgrade
Line (2019)
2
3
3) Calico Rock to
Melbourne: Upgrade Line
(2015)
15
4) Holland Bottoms to
Jacksonville North:
Upgrade Line (2016)
5
10
5) Ebony SS (Phase 2):Install
21.6 MVAR Cap Bank
(2016)
6) Hot Spring Hamilton to
Bismarck: New Line
(2016)
7) Jim Hill to Datto: Convert
115 kV Line to 161 kV Or
Construct a New 161 kV
Line (2016)
1
8
13) Woodward:
Reconfigure 115kV
Bus (2016)
13 14
11
12
11) Pine Bluff Voltage
Support: Phase 2
(2016)
12) Camden North to
Camden McGuire:
New Line (2016)
4
6
9) Lake Village Bagby to
Reed: Upgrade Line
(2016)
9
14) Woodward to Pine
Bluff West to Pine
Bluff McAlmont:
Upgrade Line (2016)
15) Rutherford: Relocate
Cap Bank to
Pangburn (2016)
8) White bluff: Reconfigure
500 kV Station (2016)
42
Energy Delivery
16) NLR Westgate to NLR
Levy: Upgrade Line
(2016)
Transmission Horizon Projects
2014 and Beyond
17) ISES: Reconfigure 161
kV Bus (2016)
22
18) AECC Hydro Station #2
to Gillett: New Line (2016)
20) Truman to Truman West:
Upgrade Line (2019)
20
17
19) Monticello East to Reed:
New Line (2016)
20
21
16
21) Moses to Forrest City
North: Upgrade Line
(2019)
18
22) Highland: Install
Capacitor Bank (2019)
19
43
Energy Delivery
Entergy Mississippi, Inc.
Transmission
2011 – 2013 Draft Construction
Plan Projects Update 1
44
Energy Delivery
2011-2013 EMI Draft Construction Plan Projects Update 1
1)
TVA Affected System Upgrades:
Morton: Upgrade Switches
Upgrade S.Jackson to Florence
115kV
2)
Magee: Upgrade Switches for
SMEPA Transformers
3)
4)
5)
6
6 15
11
Grand Gulf Uprate Project:
Upgrade Baxter Wilson to Ray
Braswell 500kV
4
6
7)
Waterways to E. Vicksburg 115
kV: Upgrade Line
99
3 7
10
6
6
8)
6
16
14 1 5
13
McAdams Area:
Add 2nd McAdams 500-230kV
Ouachita Transmission Service:
Add 2nd Baxter Wilson
500-115 kV Auto
11)
Grenada/Winona/Greenwood
Phase II: New Tillatoba to
South Grenada 230 kV line and
South Grenada add auto
12)
Brookhaven to McComb 115kV:
Upgrade Line
13)
Franklin 500kV: Reconfigure
Ring Bus
14)
Ray Braswell to Wyndale:
Construct 115 kV Line and SS
15)
Church Road to Getwell:
Construct 230 kV Line
16)
Rankin Industrial to Airport
115kV: Upgrade Line
1
2
12
6
Auto. Upgrade McAdams to
Pickens 230 kV
2010 ISD
10)
8
6
Florence to Star 115kV: Upgrade
Line
Grand Gulf Uprate: Add Capacitor
Banks
Ridgeland/Madison Area
Improvements: Rebuild
Lakeover to Ridgeland Line
and build Lakeover to
Sunnybrook to Northpark Line
6
Indianola to Greenwood 115kV:
Upgrade line
6)
9)
2011 ISD
2012 ISD
45
2013 ISD
2014 ISD
Energy Delivery
Indianola to Greenwood 115 kV Line Upgrade
(10CP-EMI-002)
Scenario:
• The Indianola to Greenwood 115kV line, located in central Mississippi, is
approximately 28 miles long and is limited to a rating of 120 MVA by
equipment in the Moorhead, Itta Bena, and Greenwood substations.
•
Loss of several 115kV sections including Pickens-Durant, Durant-Bowling
Green, Attala-Kosciusko and Delta-Ruleville causes the Indianola-Moorhead
section to overload.
Recommended Solution:
• Replace the limiting substation equipment and increase the rating of the
line to 161 MVA.
Proposed In Service Date: Complete
46
Energy Delivery
Indianola to Greenwood 115 kV Line Upgrade
(10CP-EMI-002)
Greenwood 115 kV
Substation: Upgrade
Substation Equipment
Itta Bena 115 kV
Substation: Upgrade
Substation Equipment
Moorhead 115 kV
Substation: Upgrade
Substation Equipment
Proposed In Service Date: Complete
47
Energy Delivery
Upgrade Switches at Magee Substation
(10CP-EMI-003)
Scenario:
• Entergy and SMEPA have a tie at Magee substation through two 161-115
kV, 150 MVA transformers.
•
SMEPA has replaced the transformers with 336 MVA transformers to
increase the contract path with Entergy. The switches on the 115 kV side
limits the new contract path limit to 480 MVA.
Recommended Solution:
• Replace the existing switches to increase the tie capability to full value
(672 MVA) of the new transformers.
Proposed In Service Date: Summer 2010
48
Energy Delivery
Upgrade Switches at Magee Substation
Magee 115 kV Substation:
Upgrade Substation
Equipment
Proposed In Service Date: Summer 2010
49
(10CP-EMI-003)
Energy Delivery
Upgrade Florence to South Jackson Line & Switches
at Morton Substation (10CP-EMI-004-1-2)
Scenario:
• TVA requested transmission service across Entergy’s transmission system
from TVA to TVA. The transfer causes various lines to overload for a single
contingency.
•
Florence to South Jackson, Morton to Pelahatchie and Morton to West
Forest (SOCO) 115 kV lines overloads for the loss of Choctaw to WestPoint
(TVA) 500 kV line.
Recommended Solution:
• Re-conductor Florence to South Jackson line and increase the rating of the
line to at least 183 MVA.
•
Upgrade switches at Morton substation (from 600 Amps to 1200 Amps) to
increase the rating of Morton to Pelahatchie and Morton to West Forest
(SOCO) 115 kV line sections.
Proposed In Service Date: Complete
50
Energy Delivery
Upgrade Florence to South Jackson Line & Switches at
Morton Substation (10CP-EMI-004-1-2)
Morton 115 kV
Substation: Upgrade
Substation Equipment
Florence to South Jackson 115
kV Line: Upgrade Line
Proposed In Service Date: Complete
51
Energy Delivery
Baxter Wilson to Ray Braswell 500kV Line Equipment
Upgrade (10CP-EMI-005)
Scenario:
• The Baxter Wilson to Ray Braswell 500 kV line overloads for the loss of the
Franklin to Grand Gulf 500 kV transmission line.
Recommended Solution:
• The breakers and switches at Baxter Wilson and Ray Braswell 500 kV
substations must be upgraded to at least 3000 A. This upgrade increases
the line capacity to 2598 MVA.
Proposed In Service Date: Complete
52
Energy Delivery
Baxter Wilson to Ray Braswell 500 kV Line Equipment
Upgrade (10CP-EMI-005)
Baxter Wilson 500 kV Substation:
Upgrade Substation Equipment
Ray Braswell 500 kV Substation:
Upgrade Substation Equipment
Proposed In Service Date: Complete
53
Energy Delivery
Grand Gulf Uprate Project: Add/Upgrade Capacitor
banks at different locations (10CP-EMI-007-01-12)
Scenario:
As a part of the Grand Gulf power uprate project, the following capacitor bank
additions/upgrades are required:
1. Install 21.6 Mvar capacitor banks at
–
–
–
–
–
–
Rolling Fork 115 kV substation.
Yazoo City Municipal 115 kV station.
Carthage 115 kV substation.
Tylertown 115 kV substation.
Senatobia 115 kV substation.
Plumpoint 115 kV substation.
2. Install a 32.4 Mvar capacitor bank at Magee
3. Upgrade one of the 21.6 Mvar capacitor banks at McComb 115kV to 32.4 Mvar.
4. Split the existing 32.4 Mvar capacitor banks at Hernando, Hollandale, Port Gibson and
Fayette 115kV stations into two 21.6 Mvar banks.
Proposed In Service Date: Spring 2011
54
Energy Delivery
Grand Gulf Uprate Project: Add/Upgrade Capacitor
banks at different locations (10CP-EMI-007-01-12)
Plum Point
Hernando
Senatobia
Hollandale
Rolling Fork
Yazoo City Municipal
Carthage
Port Gibson
Magee
Fayette
McComb
Tylertown
Proposed In Service Date: Spring 2011
55
Energy Delivery
Florence to Florence SS to Star 115 kV Line Upgrade
(10CP-EMI-008)
Scenario:
• Florence to Star 115 kV line, located in central Mississippi, is approximately 7
miles long and is limited to a rating of 161 MVA.
•
The loss of Franklin to Bogalusa EHV line will cause the line to overload.
Recommended Solution:
• Re-conductor Florence to Florence SS to Star line and increase the rating of
the line to 240 MVA.
Proposed In Service Date: Spring 2011
56
Energy Delivery
Florence to Florence SS to Star 115 kV Line Upgrade
(10CP-EMI-008)
Florence to Florence SS to Star
115 kV Line: Upgrade Line
Proposed In Service Date: Spring 2011
57
Energy Delivery
Reconductor Waterways to East Vicksburg 115 kV Line
(10CP-EMI-009)
Scenario:
• The Waterways to East Vicksburg 115kV segment overloads for the loss of
Baxter Wilson to Ray Braswell 500kV line.
Recommended Solution:
• Reconductor Waterways to East Vicksburg 115kV section to match the
rating of Vicksburg to Waterways (240MVA) section.
Proposed In Service Date: Summer 2011
58
Energy Delivery
Reconductor Waterways to East Vicksburg 115 kV Line
(10CP-EMI-009)
East Vicksburg to
Waterways 115 kV Line:
Upgrade Line
Proposed In Service Date: Summer 2011
59
Energy Delivery
Install 2nd 500-230 kV Autotransformer at McAdams &
Upgrade McAdams to Pickens 230 kV Line
(10CP-EMI-011-1-2)
Scenario:
• The 500-230 kV autotransformer at McAdams overloads for the loss of
McAdams to Lakeover 500 kV line.
•
The McAdams to Pickens 230 kV line, which supports the Canton/Madison
area, overloads when a 2nd 500-230 kV autotransformer is added to eliminate
the overload of the existing transformer.
Recommended Solution:
• Add 2nd 500-230 kV auto at McAdams substation. Upgrade McAdams to
Pickens 230 kV line with double bundled 954 ACSR (or equivalent) to a
capacity of at least 796 MVA.
Proposed In Service Date: 2011
60
Energy Delivery
Install 2nd 500-230 kV Autotransformer at McAdams &
Upgrade McAdams to Pickens 230 kV Line(10CP-EMI-011-1-2)
McAdams 500 kV Substation:
Install Second 500 – 230 kV
Autotransformer
McAdams to Pickens 230
kV Line: Upgrade Line
Proposed In Service Date: 2011
61
Energy Delivery
Ouachita Transmission Service: Add 2nd 500-115 kV
Autotransformer at Baxter Wilson
(10CP-EMI-013)
Scenario:
• This is a part of the reliability project that is required to add the Ouachita
generating facility (Transmission Service Request) to Entergy’s
transmission network.
•
Relocate the existing 500-115 kV autotransformer at Sterlington to the
Baxter Wilson substation.
Proposed In Service Date: Summer 2012
62
Energy Delivery
Add 2nd 500-115 kV Autotransformer at Baxter Wilson
(10CP-EMI-013)
Baxter Wilson 500 kV Substation:
Install Second 500 – 115 kV
Autotransformer
Proposed In Service Date: Summer 2012
63
Energy Delivery
Grenada/Winona/Greenwood Area Improvement
(10CP-EMI-014-1-2)
Scenario:
• The loss of Tillatoba 230-115 kV autotransformer overloads Winona to
Sawyer, Sawyer to Elliott and Indianola to Moorhead 115 kV sections. It also
causes under voltage issues at several substations between Tillatoba and
Elliott.
Recommended Solution:
• Build a 230 kV line from Tillatoba to S. Grenada with a rating of 520 MVA and
install a 230-115 kV autotransformer at S.Grenada.
Proposed In Service Date: Summer 2012
64
Energy Delivery
Grenada/Winona/Greenwood Area Improvement
(10CP-EMI-014-1-2)
South Grenada 115 kV
Substation: Install 230 – 115
kV Autotransformer
Tillatoba to South Grenada 230 kV
Line: Construct New Line
Proposed In Service Date: Summer 2012
65
Energy Delivery
Brookhaven to McComb 115kV Line Upgrade
(10CP-EMI-015-1-2)
Scenario:
• Brookhaven to McComb 115 kV line overloads for the loss of Franklin to
Bogalusa 500 kV line.
Recommended Solution:
• Rebuild the Brookhaven to McComb 115 kV line to a rating of at least 260
MVA.
Proposed In Service Date: 2012
66
Energy Delivery
Brookhaven - McComb 115kV Line Upgrade
(10CP-EMI-015-1-2)
Brookhaven to
McComb 115kV Line
Upgrade
Proposed In Service Date: 2012
67
Energy Delivery
Franklin 500kV Substation: Reconfigure Ring Bus
(10CP-EMI-016)
Scenario:
• The internal failure of one of the breakers at Franklin 500 kV substation’s ring
bus results in the loss of Franklin to McKnight and Franklin to Bogalusa 500 kV
lines.
•
Violations from the event include overload of multiple lines and undervoltages
of various substations in the areas around Brookhaven, McComb,Tylertown
and Liberty.
Recommended Solution:
• Reconfigure the 500 kV ring bus such that an internal failure of the breaker
will not result in the loss of both the Franklin to McKnight and Franklin to
Bogalusa 500 kV lines.
Proposed In Service Date: 2012
68
Energy Delivery
Franklin 500kV Substation: Reconfigure Ring Bus
(10CP-EMI-016)
Franklin 500kV
Substation: Reconfigure
Ring Bus
Proposed In Service Date: 2012
69
Energy Delivery
Ridgeland-Madison Reliability Improvement
(10CP-EMI-012-1-2)
Scenario:
• The Lakeover to NE Jackson to Rex Brown 115 kV line is 25 miles long and
will serve 7 substations (including new Sunnybrook station) totaling 190
MW of projected load in 2011.
•
The loss of Rex Brown to Hico or Hico to N. Jackson 115 kV sections
causes overload on the Lakeover to Livingston Rd 115 kV line section.
Recommended Solution:
• Rebuild Lakeover to Livingston Rd to Ridgeland 115 kV line sections to a
rating of at least 231 MVA.
•
Build a 115 kV bus in the existing Northpark 230 kV substation and cut in
the Lakeover to NE Jackson line at Northpark (between Ridgeland and
Country Club) and construct a new Lakeover to Sunnybrook to Northpark
115 kV line.
Proposed In Service Dates: Summer 2013/14
70
Energy Delivery
Ridgeland-Madison Reliability Improvement
(10CP-EMI-012-1-2)
Sunnybrook
Northpark 115
Laveover to Livingston
Road 115 kV Line: Upgrade
Line
(2013)
Laveover to Sunnybrook to
Northpark 115 kV Line:
Construct New Line
(2014)
Proposed In Service Dates: Summer 2013/14
71
Energy Delivery
Ray Braswell to Wyndale 115 kV Line Construction
(10CP-EMI-017)
Scenario:
• The SW Jackson to Byram to Brookhaven line is 53 miles long and serves 175
MW of projected load in 2011.
• The loss of the SW Jackson to Elton or Elton to Byram 115 kV lines will cause
overload on the Brookhaven to Wesson to JamesRd to Hazelhurst to Copiah
Smepa to Gallman to Crystal Springs 115kV line sections and undervoltages at
several stations between Brookhaven and Terry .
• In addition, the loss of Brookhaven to Wesson or Wesson to James Rd
overloads SW Jackson to Byram line.
Recommended Solution:
• Construct a new Wyndale 115kV switching station tapping the section
between Byram and Terry.
• Build a new 115 kV line from Ray Braswell to Wyndale with a rating of at least
261 MVA.
Proposed In Service Date: 2013
72
Energy Delivery
Ray Braswell to Wyndale 115 kV Line Construction
(10CP-EMI-017)
Wyndale: Build new 115kV
switching station
Ray Braswell to Wyndale 115
kV Line: Construct New Line
Proposed In Service Date: 2013
73
Energy Delivery
Church Road to Getwell 230 kV Line Construction
(10CP-EMI-018)
Scenario:
• Hornlake to Greenbrook 115 kV line section overloads for the loss of
Hornlake to Getwell 230 kV line.
•
Hornlake to TH Allen 161 kV line section overloads for the loss of Freeport
to Hornlake 230 kV line.
Recommended Solution:
• Construct a new 230 kV line from Getwell to Church Road with a rating of
at least 500 MVA and close the normally open 230-161 kV autotransformer
at Hornlake.
Proposed In Service Date: 2013
74
Energy Delivery
Church Road to Getwell 230 kV Line Construction
(10CP-EMI-018)
CHURCH ROAD
Church Rd to Getwell:
Construct new 230kV
line
Proposed In Service Date: 2013
75
Energy Delivery
Rankin Industrial to Airport 115kV Line Upgrade
(11CP-EMI-001)
Scenario:
• Rankin Industrial to Jackson Airport 115 kV line section near Pearl, Mississippi
overloads for the loss of 230-115 kV autotransformer at Rankin 230 kV
substation.
Recommended Solution:
• Reconductor Rankin Industrial to Jackson airport 115 kV line section to obtain
a rating of at least 261 MVA.
Proposed In Service Date: 2014
76
Energy Delivery
Rankin Industrial to Airport 115kV Line Upgrade
(11CP-EMI-001)
Reconductor Rankin Industrial
to Airport 115kV Line
Proposed In Service Date: 2014
77
Energy Delivery
EMI Transmission System Horizon Projects
2014 and Beyond
Getwell to Senatobia Industrial:
Construct 230 kV line & Add Senatobia
Industrial 230-115 kV Autotransformer
2016*
Breakers at Hollandale and Belzoni
2015
Reconductor Ray Braswell to Jackson
Forest Hill 115 kV line section
2017
Reconductor Baxter Wilson to
SE Vicksburg 115 kV section
2015
NE Jackson 115 kV:Upgrade Current
Transformer and Jumper/Risers
2017
Reconductor East Vicksburg
to Edwards 115 kV section
2016
Reconductor Brookhaven to South
Brookhaven 115 kV section
2016
Reconductor Edwards to
Bolton 115 kV section
2017
McComb: Add 115 kV Capacitor bank
2019
* Previously in 2010 – 2012 Construction Plan
78
Energy Delivery
Entergy Louisiana, LLC
Entergy New Orleans, Inc.
Entergy Gulf States Louisiana, LLC
Transmission
2011 – 2013 Draft Construction
Plan Projects Update 1
79
Energy Delivery
Draft 2011 to 2013
Construction Plan Projects – Louisiana
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
Delhi 115 kV Substation:
Add 10 Ohm series reactor
Sarepta Project: NW
LA/South AR Voltage Support
Plan
Ouachita Transmission
Service
Mount Olive: Add Shunt
Reactor
NE Louisiana Improvement
Project: Phase 1 and Phase 2
Snakefarm to Kenner 115 kV
line upgrade
Bayou LaBoutte: Construct
new 500-230 kV Substation
Southeast LA Coastal
Improvement Plan: Phase 2
Southeast LA Coastal
Improvement Plan: Phase 3
Iron Man to Tezcuco 230 kV
line – Construct new line
Golden Meadow to Leeville:
Rebuild/relocate 115 kV
transmission line
Loblolly to Hammond Build
230 kV Line
Addis to Cajun 230 kV line:
Upgrade Limiting Section
With Double-Bundled 649.5
ACAR (654 MVA)
2010 ISD
2
4
21 24
19
2011 ISD
3
14
14) Carter and Elton: Upgrade 69 kV capacitor bank at
Elton to 14 Mvar, Add 69 kV, 14 Mvar capacitor
bank at Carter
15) Construct New Youngsville 138 kV Distribution
Substation
16) Alchem to Monochem 138 kV Line: Upgrade 138 kV
line to 275 MVA
5 1
17) Acadiana Area Improvement Project - Phase 1
Projects 2011
18) Acadiana Area Improvement Project - Phase 2
Projects 2012
19) Nelson to Bluff New 230kV Line
20) Tejac to Marydale: Upgrade 69 kV transmission line
21) Nelson to Mossville: Upgrade
138 kV Line
22) Construct new Willow Glen to
Conway 230 kV line
23) Moril: Add 2nd 138-69kV
12 13
Auto
20
25
24) LC Bulk to Chlomal: Upgrade
26
22
600 A switches to 1200 A
15 17 16 10
25)
Convert Sunset Substation to
7
6
138 kV: Cut in Scott to East
18 23
11
Opelousa 138 kV line
8
26) Vatican: New 138 kV
9
Substation
2012 ISD
2013 ISD
80
2014 ISD
2015 ISD
Energy Delivery
Entergy Louisiana, LLC
(North)
81
Energy Delivery
Delhi – Add 10 Series Reactor
10CP-ELL-004
Scenario:
•
The loss of the Sterlington to El Dorado 500kV line results in the underlying
Sterlington to Tallulah 115kV line exceeding its thermal rating
Proposed Solution:
•
Install a 115kV, 10Ω series reactor at Delhi
Proposed In-Service Date: Complete
82
Energy Delivery
Delhi – Add 10 Series Reactor
10CP-ELL-004
Delhi: Add 10Ω
Series Reactor
Proposed ISD: Complete
83
Energy Delivery
Sarepta Project
NW Louisiana/South Arkansas
Voltage Support Plan
10CP-ELL-005-1 through 10CP-ELL-005-3
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 to McNeil line segment
– Loss of the Magnolia Steel to Magnolia East line segment
– Loss of the Magnolia Steel to Kerlin S.S. line segment
Additionally the contingency outage of any of the following lines:
– 115kV line from Carroll to RingGold
– 115kV line from Trussel Crossing to Vienna
– 115kV line from Vienna to Mount Olive
– 115kV line from Springhill to Taylor
– 115kV line from Haynesville to Emerson
– 115kV 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 345-115kV 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) – Complete
Install a 32.4 Mvar cap bank at Lucky – Complete
Install a 32.4Mvar cap bank at Vienna – Complete
Proposed In-Service Date: 2011
84
Energy Delivery
Sarepta
Project –
Emerson /
Sarepta Area
10CP-ELL-005-1
Proposed ISD: 2011
Emerson: 21.6 Mvar
sized Capacitor Bank
with 10.8 Mvar installed
Complete
Sarepta: Build 345-115kV substation
Tap El Dorado to Longwood line
85
Energy Delivery
Sarepta
Project –
Lucky/Vienna
Area
10CP-ELL-005-2
10CP-ELL-005-3
Proposed ISD: Complete
Cap Bank
Installations
86
Energy Delivery
Ouachita Transmission Service
10CP-ELL-010-1 through 10CP-ELL-010-6
Scenario:
•
Transmission Service
Proposed Solution:
Upgrades required for transmission service
• Upgrade Frostkraft to Rilla 115kV line sections to 954 ACSR by rebuilding 2.3 out of 7.8 miles –
Complete
• Install 32.4 Mvar capacitor bank at Riser
• Loop Sterlington to Crossett North into North Bastrop by constructing 7 miles of double-circuit line
with 1272 ACSR conductor
• Split the Sterlington 115kV bus and replace Sterlington autotransformer #2 with a 500-115kV, 750
MVA auto and relocate existing Sterlington 500-115kV auto #2 to Baxter Wilson (EMI)
• Upgrade Walnut Grove to Swartz (Structure 49) 115kV line section (5 mile section of Walnut Grove
to Swartz 115kV line) to 1590 ACSR conductor
• Upgrade Sterlington to Log Cabin 115kV line:
–
–
–
•
Upgrade Sterlington to IPCO 115kV line to 1590 ACSR by rebuilding 5.5 out of 7.8 miles
Upgrade IPCO to Bastrop 115kV line to 1590 ACSR by rebuilding all 4.2 miles
Upgrade Bastrop to N. Bastrop Tap to Log Cabin 115kV to 1272 ACSR by rebuilding all 5.8 miles
Upgrade breakers at Vicksburg and Baxter Wilson 115kV substations (EMI)
Proposed In-Service Date: 2012/2013
87
Energy Delivery
Ouachita
Transmission
Service
10CP-ELL-010-1 through
10CP-ELL-010-6
Loop Sterlington to Crossett
North into North Bastrop
Proposed ISD: 2012/2013
Split Sterlington 115kV bus
and replace 500-115 auto
#2 with 750 MVA
Upgrade Sterlington to
Log Cabin 115kV line
Install Riser 32.4
Mvar Cap Bank
WALNUT GROVE
SWARTZ
FROSTCRAFT
RISER
Upgrade Frostcraft
to Rilla 115kV line
- Complete
RILLA
88
Upgrade Walnut Grove to
Swartz 115kV line
Energy Delivery
Mount Olive – Add Shunt Reactor
11CP-ELL-002
Scenario:
•
•
The loss of the Mount Olive to El Dorado 500kV line results in high voltage at
Mount Olive 500kV switching station
To bring voltage to the acceptable level and make switching procedure easier
during the light load conditions, two 70 Mvar reactors are needed at the
Mount Olive 500kV station.
Proposed Solution:
•
Install 2 x 70 Mvar 500kV shunt reactors at Mount Olive 500kV station
Proposed In-Service Date: 2013
89
Energy Delivery
Mount Olive – Add Shunt Reactor
11CP-ELL-002
Proposed ISD: 2013
Install 2 x 70 Mvar 500kV
shunt reactors at Mount Olive
90
Energy Delivery
NE Louisiana Improvement Project
Phase 1 and Phase 2
11CP-ELL-003
Scenario:
•
•
The loss of Tallulah to Delhi results in the overload of Sterlington to Oak
Ridge
The loss of Sterlington to Oak Ridge results in the overload of Tallulah to
Delhi and low voltages at several buses in the area
Proposed Solution:
•
Phase 1
– Construct a new 115kV line from Swartz to Oak Ridge
– Operate existing 115kV line from Sterlington to Oak Ridge open
•
Phase 2
– Construct new 115kV line from Oak Ridge to new station near Carson
– Install 32.4 Mvar cap bank at new station
Proposed In-Service Date: 2014
91
Energy Delivery
NE Louisiana Improvement
Project Phase 1 and Phase 2
11CP-ELL-003
Proposed ISD: 2014
Phase 2 – Construct new 230kV line from
Oak Ridge to new station near Carson
operate at 115kV.
Install 32.4 Mvar cap bank at new station
Phase 1 – Construct new 230kV line
from Swartz to Oak Ridge operate at
115kV and open existing Sterlington
to Oak Ridge
92
Energy Delivery
Entergy Louisiana, LLC
(South)
93
Energy Delivery
Snakefarm to Kenner 115kV: Upgrade Thermal
Capacity
10CP-ELL-001
Scenario:
• Loss of the Gypsy to Claytonia 115kV line will result in the Snakefarm to
Kenner 115kV line segment to exceed its thermal rating.
Recommended Solution:
• Upgrade bus, switches, and breaker at Snakefarm to increase the thermal
rating of the Snakefarm to Kenner 115kV line segment.
Proposed In-Service Date: Complete
94
ELL-South
Energy Delivery
Snakefarm to Kenner 115kV: Upgrade Thermal
Capacity
10CP-ELL-001
Upgrade bus and
equipment at Snakefarm
Proposed ISD: Complete
95
ELL-South / ENOI
Energy Delivery
Bayou LaBoutte
10CP-ELL-006
Scenario:
•
This project is necessary to address area n-1 and n-1, g-1 contingencies in
the Iberville 230 kV area.
Recommended Solution:
• Construct a new three position 500kV ring bus substation (Bayou LaBoutte)
on the Webre to Willow Glen 500kV line in the vicinity of the Iberville
substation, with a new single phase 800MVA, 500-230kV autotransformer.
Construct approximately 0.5 miles of new 230kV transmission line from the
new substation and terminate at the existing Iberville 230kV substation in a
new line position.
• Re-tap CT’s at Webre to increase the Webre to Bayou LaBoutte 500 kV line
thermal rating
Proposed In-Service Date: Winter 2011
96
ELL-South
Energy Delivery
Bayou LaBoutte
10CP-ELL-006
Build new 230kV line from
Bayou LaBoutte to Iberville
230KV substation
Build new
500-230kV
substation
Proposed ISD: Winter 2011
97
Energy Delivery
Southeast Louisiana Coastal Improvement Plan:
Construct New Peters Road to Oakville to Alliance 230 kV Line
10CP-ELL-007 and 10CP-ELL-008
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 to Barataria 115kV or the Valentine
to 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 and voltage support needed to serve the Alliance area.
Recommended Solution:
• Phase 2: Peters Road to Oakville 230kV Line
– Build a new 230kV substation at Oakville and a new radial 230kV line
from Peters Road to Oakville Substation.
– Proposed In-Service Date: 2012
•
Phase 3: Oakville to Alliance 230 kV Line
– 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
98
ELL-South
Energy Delivery
SELA Ph #2 - Peters Road to Oakville 230kV
SELA Ph #3 – Oakville to Alliance 230 kV
(10CP-ELL-007 and 10CP-ELL-008)
Phase 2
Construct new Peters Road
to Oakville 230 kV Line and
Oakville 230 kV distribution
substation
OAKVILLE
Phase 3
Construct new Oakeville to
Alliance 230 kV Line and and
add 230-115 auto at Alliance
Proposed ISD 2012
99
ELL-South
Energy Delivery
Iron Man to Tezcuco: Construct New 230kV Line
10CP-ELL-009
Scenario:
• Studies indicate that the Belle Point to Little Gypsy 230kV transmission line
exceeds its thermal rating due to the contingency loss of the WaterfordTezcuco 230kV transmission line. Additionally, the Waterford toTezcuco
230kV transmission line will exceed its thermal rating due to the contingency
loss of the Belle Point to Little Gypsy 230kV transmission line.
Recommended Solution:
• Construct a new 230 kV SS (Iron Man) on the Gypsy to Bayou Steel 230 kV
line
• Construct approximately 10.7 miles of new 230kV transmission line from Iron
Man to Tezcuco to provide a parallel 230 kV line.
Proposed In-Service Date: 2013
100
ELL-South
Energy Delivery
Iron Man to Tezcuco: Construct New 230kV Line
10CP-ELL-009
Gypsy 230
Iron Man SS
BAYOU STEEL
Waterford 230
Construct new 230kV line
and Iron Man 230 kV SS
ELL-South / EGSI-LA
Proposed ISD 2013
101
Energy Delivery
Golden Meadow to Leeville 115KV rebuild /relocate
115KV transmission Line
Scenario:
•
11CP-ELL-001
The Golden Meadow to Leeville to Fourchon 115kV circuit is a radial line
located in the marsh, consisting of 15.5 miles of wood structures and 5.5
miles of steel structures. The single contingency loss of the Golden Meadow
to Leeville line separates the Leeville and Fourchon Substations from the
transmission grid. This project helps to relocate the existing line out of the
marsh and improve reliability to critical energy infrastructure.
Recommended Solution:
• Golden Meadow to Leeville rebuild/relocate 115kV transmission line
Proposed In-Service Date: 2013
102
ELL-South
Energy Delivery
Golden Meadow to Leeville 115KV rebuild /relocate
115KV transmission Line
11CP-ELL-001
Re-build/relocate
115kV Line
Proposed ISD 2013
103
Energy Delivery
Loblolly to Hammond:
Construct 230 kV Substation and Line
10CP-EGL-010
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 to McKnight 500kV line, or certain other transmission
contingencies, causes overloads on the underlying transmission system, primarily
on the Gypsy to 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 230kV line from Loblolly to Hammond utilizing the existing
Coly to Hammond 69kV line (constructed for 230kV).
Proposed In-Service Date: Summer 2012
104
ELL-South
Energy Delivery
Loblolly to Hammond: Construct new 230 kV Line
To
Franklin
10CP-EGL-010
To Fancy
Point
McKnight
To SOCO’s
Plant Daniel
To Coly
Build new
230kV line
Coly
Loblolly
Proposed ISD: Summer 2012
105
ELL-South / EGSI-LA
Energy Delivery
Entergy Gulf States Louisiana, LLC
106
Energy Delivery
Addis to Cajun 230 kV Line Upgrade
10CP-EGL-002
Scenario:
• In the winter of 2011, loss of the Webre to Big Cajun 500kV line or the
Jaguar to Esso Tap 230kV line results in the existing Addis to Cajun
230kV line exceeding its thermal rating.
Recommended Solution:
• Reconductor from structure 250 to 251 (0.06 miles) to double bundled
649.5 ACAR
Proposed In-Service Date: Winter 2010
107
Energy Delivery
Addis to Cajun 230 kV Line Upgrade
10CP-EGL-002
Upgrade Existing Line
Proposed ISD: Winter 2010
108
Energy Delivery
Carter and Elton Capacitor Bank Installation
10CP-EGL-003
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 to Compton to Elton to Tupper to
Serpent to Chlomal 69kV line and the Chlomal to Iowa to Welsh to Lawtag to Jennings
69kV line.
• The contingency outage of a 69kV line segment between Jennings and Elton results in
the Chlomal to Lacassine 69kV line exceeding its thermal rating. Likewise, the
contingency outage of a 69kV segment between Chlomal and Carter results in the
Jennings to Compton 69kV line exceeding its thermal rating.
• The contingency outage of the Lawtag to Jennings 69kV line results in the Lake Charles
Bulk to Chlomal 69kV line and the Chlomal to Iowa 69kV line segment to exceed their
thermal rating.
Recommended solution:
• Establish normally open point at Serpent and Lawtag
• Upgrade 69kV capacitor bank at Elton to 14.4 Mvar – Complete
• Install 69kV, 14.4 Mvar capacitor bank at Carter
Proposed In-Service Date: Fall 2010
109
Energy Delivery
Carter and Elton Capacitor Bank Installation
10CP-EGL-003
N.O. Point at
Serpent
14.4 Mvar Cap Bank at
Elton – Complete
14.4 Mvar Cap Bank at
Carter
N.O. Point at
Lawtag
Proposed ISD: Fall 2010
110
Energy Delivery
Youngsville 138kV Distribution Station
10CP-EGL-004
Scenario:
• Loss of Cleco’s Flanders to Hopkins 138kV Line, the Moril 138–69kV
autotransformer, or the Moril to New Iberia 69kV line will result in the
Lafayette to Holiday to Billeaud 69kV line exceeding 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 69kV transmission system.
Proposed In-Service Date : Summer 2011
111
Energy Delivery
Youngsville 138kV Distribution Station
10CP-EGL-004
Proposed ISD: 2011
Construct new station.
112
Energy Delivery
Alchem to Monochem: Upgrade 138kV Line
10CP-EGL-005
Scenario:
• In the industrial corridor, the Alchem to Monochem 138kV line is part of a
138kV path that operates parallel to Willow Glenn to Conway 230kV line.
The contingency loss any of the 230kV segments from Willow Glen to
Vulchlor will result in the Alchem to Monochem 138kV line to exceed its
thermal rating.
Recommended Solution:
• Upgrade line to 100°C operating temperature by replacing structures.
Project will increase rating of line from 225 MVA to 275 MVA.
Proposed In-Service Date: Summer 2011
113
Energy Delivery
Alchem to Monochem:
Upgrade 138kV Line
10CP-EGL-005
Proposed ISD: Summer 2011
Upgrade 138kV Line
114
Energy Delivery
Acadiana Area Improvement Project
Phase 1 and Phase 2
10CP-EGL-006-1 through 10CP-EGL-006-4 and 10CP-EGL-007-1 through 10CP-EGL-007-2
Scenario:
• Results of a long term joint study performed by Entergy, CLECO, LUS, and
the ICT determined a set of reliability 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 230kV and 138kV terminals to connect 450 MVA
230–138kV autotransformer
– Moril Substation: Install 138kV line terminal for Cleco’s Segura to Moril 138kV
Transmission Line (Complete)
– Richard Substation: Install 500kV terminal to connect Cleco’s 500–230kV 750
MVA autotransformer adjacent to Entergy’s Richard substation
– Meaux to Sellers Road Transmission Line: Construct 9.5 miles of 439 MVA (954
ACSR) 230kV Transmission line on new 100’ right-of-way. Cleco’s Sellers Road
line bay constructed by Cleco.
Proposed In-Service Date: Summer 2011
115
Energy Delivery
Acadiana Area Improvement Project
Phase 1 and Phase 2
10CP-EGL-006-1 through 10CP-EGL-006-4 and 10CP-EGL-007-1 through 10CP-EGL-007-2
Continued
Recommended Solution (continued):
Phase 2
– Wells Substation: Construct 500kV terminal to connect CLECO’s owned and
installed 500–230kV 560 MVA autotransformer.
– Labbe to Sellers Road 230kV Line: Construct approximately 15 miles of 230kV 829
MVA line from LUS's Labbe 230kV Substation to CLECO's Sellers Road Substation.
Labbe 230kV line bay and breaker constructed by LUS. Sellers Road 230kV line
bay and breaker constructed by CLECO.
– Upgrade 69kV breaker at Scott and 69kV breaker at Moril.
Proposed In-Service Date: Summer 2012
116
Energy Delivery
Acadiana Area Improvement Project
Phase 1 and Phase 2
10CP-EGL-006-1 through 10CP-EGL-006-4 and 10CP-EGL-007-1 through 10CP-EGL-007-2
Proposed ISD: Summer 2011 / Summer 2012
117
Energy Delivery
Nelson to Moss Bluff 230kV Line
10CP-EGL-008
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 new Nelson to Moss Bluff 230kV line
• Disconnect existing Nelson To Moss Bluff 230kV line which will be used in the
future to create a Nelson to new Lake Charles Bulk 230kV line
Proposed In-Service Date: 2012
118
Energy Delivery
Nelson to Moss Bluff 230kV Line
10CP-EGL-008
Construct new 230kv line
and
Open existing 230kV line
Proposed ISD: 2012
119
Energy Delivery
Tejac to Marydale: Upgrade 69kV Line
10CP-EGL-009
Scenario:
• The 69kV transmission system north of Port Hudson substation serves 12
substations.
• The Tejac to Marydale 69kV line segment will exceed its thermal rating due
to the loss of Port Hudson to Sandy Creek to Jackson or Francis to Grant to
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
120
Energy Delivery
Tejac to Marydale: Upgrade 69kV Line
10CP-EGL-009
Upgrade 69kv Line
Proposed ISD: 2012
121
Energy Delivery
Nelson to Mossville: Upgrade 138kV Line
10CP-EGL-011
Scenario:
• Loss of the Carlyss to Citcon West 138kV line will result in the Nelson to
Mossville 138kV line exceeding its thermal rating.
Recommended Solution:
• Upgrade the 3.3 mile Nelson to Mossville 138kV line to at least 380 MVA.
Proposed In-Service Date: 2013
122
Energy Delivery
Nelson to Mossville: Upgrade 138kV Line
10CP-EGL-011
Upgrade 138kv Line
Proposed ISD: 2013
123
Energy Delivery
Willow Glen to Conway: New 230kV Line
10CP-EGL-012
Scenario:
• Loss of the Willow Glen to Waterford 500kV or the Coly to Vignes 230kV line
results in the St. Gabriel to A.A.C. to Belle Helene 230kV line exceeding 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: 2013
124
Energy Delivery
Willow Glen to Conway: New 230kV Line
10CP-EGL-012
WILLOW GLEN
Construct NEW 230kv Line
CONWAY
Proposed ISD: 2013
125
Energy Delivery
Moril: Add 2nd 138–69kV Auto
11CP-EGL-001
Scenario:
• Loss of the existing 138–69kV auto-transformer at Moril results in the
overload of the 69kV line from Tiger to Five Points to the Line 247 Tap Point
and overload of the 69kV line from Billeaud to Holiday to Lafayette in the
near term.
• Loss of the existing 138–69kV auto-transformer at Cecelia or loss of the
Cecelia to Parks 69kV line segment results in the overload of the existing
Moril 138–69kV auto-transformer in the later years.
Recommended Solution:
• Install a second 138–69kV auto-transformer at Moril
Proposed In-Service Date: 2014
126
Energy Delivery
Moril: Add 2nd 138–69kV Auto
11CP-EGL-001
Add 2nd 138-69kV Auto
Proposed ISD: 2014
127
Energy Delivery
LC Bulk to Chlomal: Upgrade Switches
11CP-EGL-002
Scenario:
• The loss of either Pecan Grove to Dynergy 230kV line or the Smith to Reigel
69kV line results in the overload of the Lake Charles Bulk to Chlomal 69kV
line.
Recommended Solution:
• Replacement of the 600 A switches at Lake Charles Bulk will result in an
increase of the Lake Charles Bulk to Chlomal 69kV line rating to the
conductor limit of 775 A.
Proposed In-Service Date: 2014
128
Energy Delivery
LC Bulk to Chlomal: Upgrade Switches
11CP-EGL-002
Replace 600A switches
L
LAKE CHARLES AREA
Proposed ISD: 2014
129
Energy Delivery
Vatican 138kV Substation
11CP-EGL-004
Scenario:
• The loss of the Scott to Vatican 138kV line segment results in the Vatican
138kV substation to be sourced radially out of Wilbert. The contingency
results in low voltages in the area on the 138 kV and 69 kV system.
Recommended Solution:
• Construct a new 4 breaker ring bus substation at the Vatican 138kV
substation and cut the Scott to Acadia 138kV line (line 279) in and out of the
substation with approximately 2.5 miles 138kV transmission line rated for a
minimum of 400 MVA of thermal capacity to account for future load
increases.
Proposed In-Service Date: 2015
130
Energy Delivery
Vatican 138kV Substation
11CP-EGL-004
Cut in Scott to Acadia 138kV line
into Vatican 138kV Substation
Add breakers at Vatican
Proposed ISD: 2015
131
Energy Delivery
Construct new Sunset 138 kV Substation
11CP-EGL-003
Scenario:
• The loss of the Scott to Carencro 69kV line results in the 69kV lines from
Champagne down to Sunset to exceed their thermal ratings and low voltages
to occur on the area 69 kV system.
Recommended Solution:
• Construct a proposed Sunset 138kV distribution substation and cut the Scott
to East Opelousas 138kV line (line 289) in and out of the substation with
approximately 1.5 miles of transmission line rated to provide a minimum of
400 MVA of thermal capacity to account for future load increases.
• Project is dependent on the Vatican Cut-In Project
Proposed In-Service Date: 2015
132
Energy Delivery
Construct new Sunset 138 kV Substation
11CP-EGL-003
Convert to 138kV and Cut in
Scott to East Opelousas
138kV line
Proposed ISD: 2015
133
Energy Delivery
Transmission Horizon Projects 2014 and beyond
1) Mt. Olive to Arcadia: Construct
14) Port Hudson to Zachary REA 69kV Upgrade
new 230kV line (operate at
Line
115kV)
15) Coly Area Improvement: Upgrade
2) Arcadia to Sailes: Construct new
transformers 230-69kV autos
230kV line (operate at 115kV)
16) Sorrento Upgrade 138-115 kV Auto and
3) St. James: Add 230kV capacitor
upgrade Gonzales to Sorrento 138kV Line
bank
17) LC Bulk: Construct 230kV facilities and add
4) Claytonia: Add 32 Mvar, 115kV
2 1
230-69kV Autotransformer
capacitor bank
18) Champagne: Add 138kV Capacitor Bank
5) Valentine to Clovelly 115kV line
19) Five Points to Tiger to Line 247 Tap:
upgrade
Upgrade 69kV line
6) Raceland: Cut Waterford to
20) Moss Bluff to Lake Charles 230kV Construct
Valentine 230kV line in and out of
New Line - Create double 230kV Loop
Raceland
21) Construct 3rd Mossville to Alfol 69kV line
7) Construct new Terrebone to
22) Youngsville Phase 2
Greenwood to Humphrey 230kV
Project: Construct
line - Operate at 115kV
new Youngsville to
8) Napoleonville Cap Bank 21 Mvar
Billeaud to New
9 11
9) Jackson to Tejac: Upgrade
13
24
Iberia 138kV line
14
15
18
69kVline
10
23) Willow Glen to
12
16
20 21
10) Louisiana Station to Thomas:
22
23
Oakgrove 138kV
19 3 4
17
Upgrade 138kV line
Upgrade Line
8
11) McManus to Brady Heights:
5
24) Greenwell Springs
6
Upgrade 69kV line
7
area reconfiguration
12) Harrelson to Gloria: Upgrade
(Coly-Polyform69kV line
Denham Springs)
13) Port Hudson 69 kV Area
Improvement: final solution still
2014 ISD 2015 ISD 2016 ISD 2017 ISD
being developed
2018 ISD 2019 ISD 2020 ISD 2021 ISD
134
Energy Delivery
Entergy Texas, Inc.
Transmission
2011 – 2013 Draft Construction
Plan Projects Update 1
135
Energy Delivery
2011-2013 ETI Draft Construction Plan Projects
Update 1
1)
Temco and Shepherd 138 kV
Substations: Upgrade CTs
2)
Western Region Reliability
Improvement Plan Phase 3
Interim (Part 1)
3)
Western Region Reliability
Improvement Plan Phase 3
Interim (Part 2)
4)
5)
6)
7
14
Western Region Reliability
Improvement Plan Phase 3
Interim (Part 3)
5
13
1
College Station 138KV
Switching Station
2
Grand Gulf Uprate Project:
Upgrade Hartburg to Inland
Orange to Mc Lewis 230 kV
Line
3
10
8
11
9
6
4
7)
Hearne to Calvert: Uprate 69
kV Line
12)
8)
Upgrade Tamina to Cedar Hill
138 kV Line
Kolbs 230 kV: Add Capacitor
Bank
13)
9)
Expand Capacitor Bank at New
Caney 138 kV
Caldwell 69 kV: Expand
Capacitor Bank
14)
10)
Deweyville 69 kV: Add
Capacitor Bank
Upgrade Jasper to Sam
Rayburn 138 kV Line
11)
Elizabeth to Gallier: Uprate 69
kV Line
2010 ISD
2011 ISD
2012 ISD
136
12
2013 ISD
2014 ISD
Energy Delivery
Temco and Shepherd 138 kV Substations:
Upgrade CTs
11CP-ETI-008-1 & 11CP-ETI-008-2
Scenario:
• The single contingency loss of the Jacinto to Pelican Road 138 kV line causes
thermal overloads on the Temco to Shepherd 138 kV line.
Proposed Solution:
• Replace existing 200/5 A CTs at Temco and Shepherd with 1200/5 A CTs to
increase capacity along the circuit to the conductor rating (~ 1000 A) .
Proposed In-Service Date: Summer 2010
137
Energy Delivery
Temco and Shepherd 138 kV Substations:
Upgrade CTs
11CP-ETI-008-1 & 11CP-ETI-008-2
UPGRADE
CTs
UPGRADE
CTs
Proposed In-Service: Summer 2010
138
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 1)
10CP-ETI-009
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
Proposed Solution:
• Relocate Caney Creek load delivery point (ETEC-owned) from 138 kV Line
824 (Lewis Creek to Jacinto) to new location on 138 kV Line 587 (Lewis
Creek to Conroe) to accommodate future conversion of Line 824 to 230 kV
operation
Proposed In-Service Date: Complete
139
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 1)
10CP-ETI-009
Relocate Caney
Creek 138kV to
Line 587
Proposed In-Service: Complete
140
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 3)
10CP-ETI-011
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
Proposed Solution:
• Reconductor Line 88/66 from Fontenot’s Corner to South Beaumont 138 kV
station [~9 miles]
Proposed In-Service Date: Winter 2010
141
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 3)
10CP-ETI-011
Upgrade Line
88/66
Proposed In-Service: Winter 2010
142
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 2)
10CP-ETI-012
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
Proposed Solution:
• Convert 138 kV Lines 524/824 (Jacinto to 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
Proposed In-Service Date: Summer 2011
143
Energy Delivery
Western Region Reliability Improvement Plan
Phase 3 Interim (Part 2)
10CP-ETI-012
Convert Line
524/824
Proposed In-Service: Summer 2011
144
Energy Delivery
College Station 138kV Switching Station
10CP-ETI-010
Scenario:
• The single contingency outage of the Grimes to Navasota 138 kV line causes
overloads along the Lewis Creek to Longmire 138 kV line, as well as low
voltages along the Navasota to Longmire 138 kV line.
Proposed Solution:
• Construct a new three-breaker station at the College Station tap point to tie
together 138 kV Lines 83, 183, and 490.
• Close the normally-open switch between Speedway 138 kV and the College
Station 138 kV tap point (Line 83) to bring another path from Grimes into
Navasota
Proposed In-Service Date: Spring 2011
145
Energy Delivery
College Station 138kV Switching Station
10CP-ETI-010
New 138 kV Station;
Close N.O. switch
N.O.
COLLEGE
STATION
Proposed In-Service: Spring 2011
146
Energy Delivery
Grand Gulf Uprate Project:
Hartburg to Inland Orange to McLewis
230 kV Line Upgrade
10CP-ETI-013
Scenario:
• Grand Gulf Uprate transmission service
Proposed Solution:
• Upgrade required for transmission service:
– Re-conductor approximately 13 miles of 230kV Line 195 and upgrade station
equipment as necessary to achieve 797 MVA capacity along entire circuit.
Proposed In-Service Date: Summer 2011
147
Energy Delivery
Grand Gulf Uprate Project:
Hartburg to Inland Orange to McLewis
230 kV Line Upgrade
10CP-ETI-013
Re-conductor
Line 195 to
McLewis
MCLEWIS
Proposed In-Service: Summer 2011
148
Energy Delivery
Hearne to Calvert: Uprate 69 kV Line
11CP-ETI-001
Scenario:
• 69 kV Line 85 (Hearne to Calvert) experiences thermal overloads in the base
case at peak load conditions.
Proposed Solution:
• The capacity of Line 85 is limited due to the sag rating of a single span
crossing over a distribution circuit. Replace the structures on either side of
the crossing with taller structures to achieve a larger sag clearance and
increase the rated capacity of the line.
Proposed In-Service Date: Summer 2011
149
Energy Delivery
Hearne to Calvert: Uprate 69 kV Line
11CP-ETI-001
Replace Line 85
distribution
crossing structures
Proposed In-Service: Summer 2011
150
Energy Delivery
Upgrade Tamina to Cedar Hill 138kV Line
10CP-ETI-014
Scenario:
• The single contingency loss of 138 kV Line 582 (Oak Ridge to Porter) causes
thermal overloads on 138 kV Line 886 (Tamina to Cedar Hill).
Proposed Solution:
• Re-conductor approximately 10 miles of 138kV Line 886 and upgrade station
equipment as necessary to achieve 478 MVA capacity along the entire circuit.
Proposed In-Service Date: Winter 2011
151
Energy Delivery
Upgrade Tamina to Cedar Hill 138kV Line
10CP-ETI-014
UPGRADE TO
478 MVA
CAPACITY
Proposed In-Service: Winter 2011
152
Energy Delivery
Expand Capacitor Bank at New Caney 138kV
11CP-ETI-002
Scenario:
• The single contingency loss of 138 kV Line 586 (Porter to New Caney) causes
low voltages along 138 kV Line 86 (New Caney to Dayton Bulk).
Proposed Solution:
• Expand the existing capacitor bank at New Caney 138 kV from 36 Mvar to 72
Mvar.
Proposed In-Service Date: 2012
153
Energy Delivery
Expand Capacitor Bank at New Caney 138kV
11CP-ETI-002
Expand 36 Mvar
cap bank to 72
Mvar
Proposed In-Service: 2012
154
Energy Delivery
Deweyville 69 kV: Add Capacitor Bank
11CP-ETI-003
Scenario:
• The single contingency loss of 69 kV Line 81 (Echo to Deweyville) causes low
voltage at the Deweyville 69 kV substation (JNEC-owned).
Proposed Solution:
• Add a 12 Mvar capacitor bank at the Deweyville 69 kV substation.
Proposed In-Service Date: 2012
155
Energy Delivery
Deweyville 69 kV: Add Capacitor Bank
11CP-ETI-003
Install 12 Mvar
cap bank
Proposed In-Service: 2012
156
Energy Delivery
Elizabeth to Gallier: Uprate 69 kV Line
11CP-ETI-004
Scenario:
• The single contingency outage of 69 kV Line 162 (Amelia Bulk to Poly) causes
an overload of 69 kV Line 468 (Elizabeth to Gallier).
Proposed Solution:
• Uprate Line 468 by eliminating sag clearance issues to achieve a capacity of at
least 80 MVA.
Proposed In-Service Date: 2012
157
Energy Delivery
Elizabeth to Gallier: Uprate 69 kV Line
11CP-ETI-004
Eliminate Line 468
sag clearance
issues
Proposed In-Service: 2012
158
Energy Delivery
Kolbs 230 kV: Add Capacitor Bank
11CP-ETI-005
Scenario:
• The N-1,G-1 contingency loss of 230 kV Line 499 (Kolbs Bulk to Gulfway) and
Sabine Unit 4 causes low voltages on the 230 kV loop in the Port Acres area.
Proposed Solution:
• Add a 72 Mvar capacitor bank at the Kolbs 230 kV substation.
Proposed In-Service Date: 2012
159
Energy Delivery
Kolbs 230 kV: Add Capacitor Bank
11CP-ETI-005
Install 72 Mvar
cap bank
Proposed In-Service: 2012
160
Energy Delivery
Caldwell 69 kV: Expand Capacitor Bank
11CP-ETI-006
Scenario:
• The single contingency loss of either 69 kV Line 535 (Caldwell to Bryan) or
69 kV Line 60 (Somerville to Navasota) causes low voltage at the Caldwell 69
kV substation.
Proposed Solution:
• Expand the existing capacitor bank at Caldwell 69 kV from 7.5 Mvar to 15
Mvar.
Proposed In-Service Date: 2012
161
Energy Delivery
Caldwell 69 kV: Expand Capacitor Bank
11CP-ETI-006
Expand 7.5
Mvar cap bank
to 15 Mvar
Proposed In-Service: 2012
162
Energy Delivery
Upgrade Jasper to Sam Rayburn 138 kV Line
10CP-ETI-017
Scenario:
• The single contingency outage of the Cypress-Hartburg 500 kV line causes an
overload of the Jasper to Sam Rayburn 138 kV line
Proposed Solution:
• Re-conductor the Jasper to Sam Rayburn 138 kV line (approx. 13.5 miles) to
achieve a capacity of 265 MVA
Proposed In-Service Date: Summer 2014
163
Energy Delivery
Upgrade Jasper to Sam Rayburn 138 kV Line
10CP-ETI-017
UPGRADE TO
265 MVA
CAPACITY
Proposed In-Service: 2014
164
Energy Delivery
1)
Transmission Horizon Projects
Upgrade Jacinto to Splendora
2014 and Beyond
138 kV Line (2015)
2)
Construct New China to
Stowell 138 kV Line (2015)
3)
Conroe Area 138 kV Switching
Station (2016)
4)
Reconductor Sabine to Port
Neches Bulk 138 kV Lines
(2016)
5)
Helbig to McLewis 230 kV
Line: Reconductor with ACCC
(2016)
6)
Western Region Reliability
Improvement Plan: Add Alden
SVC (2016)
7)
Add Capacitor Bank at
Huntsville 138 Kv (2016)
8)
Grimes Substation: Add 3rd
345-138 kV Autotransformer
(2016)
9)
Upgrade Cedar Hill to
Plantation 138 kV Line
(2017)*
10) Upgrade Plantation to Conroe
Bulk 138 kV Line (2017)*
7
8
3
6 9,10
1
12 5
11
2
11)
Expand Capacitor Banks at
Dayton Bulk 138 kV (2018)
12)
Construct New China to
Amelia 230 kV Line (2018)
* Previously in 2010 – 2012 Construction Plan
165
4
Energy Delivery
Transmission Horizon Projects
2014 and Beyond
13) Cut Jacinto to Splendora 138
kV Line into Cleveland 138 kV
Substation (2019)
14) Upgrade Splendora to Apollo
138 kV Line (2019)
15) Orange County 230 kV Project
(2019)
16) Upgrade Kountze Bulk to
Lumberton 138 kV Line
(2019)
17) Add 2nd Cypress 500-138 kV
Autotransformer(2019)
18
21
22
20
13
14
18) Upgrade Toledo Bend to
Newton Bulk 138 kV Line
(2019)
23
19) Upgrade Cypress to Amelia
230 kV Line (2019)
20) Upgrade Somerville to
Navasota 69 kV Line (2019)
22)
21) Upgrade Grimes to Mt. Zion
to Huntsville 138 kV Line
(2019)
Upgrade Grimes to
Bentwater 138 kV Line
(2019)
23)
Upgrade Eastgate to Dayton
Bulk 138 kV Line (2021)
166
16,17
19 15