ERCOT 2009 Five-Year
Transmission Plan Update
Jeff Billo
RPG Meeting
August 14, 2009
2009 Five-Year Transmission Plan:
Where we’ve been
2009 5YTP
Scope and
Process
VSAT 2009
Voltage Stability
Study
Stability
Interface
Limits
Remove
Projects
SSWG 09DSB
Cases –
December TPIT
Update
SSWG
Contingencies
Generation
Cost Data
Conditioned
cases
Peak Load
Topology
Generation
Posted on
website
UPLAN start
case
ERCOT Load
Profile
2014 Case
Posted on website
Reliability Analysis
August 14, 2009
2
RPG Meeting
2009 Five-Year Transmission Plan:
Where we’re at
2014
2013
2012
2011
2010
Conditioned Case
N-X Analysis
G-1 + N-X Analysis
TO/ MP Input
Project Backout
Reliability AC Case
Economic Analysis
AC Case with All Upgrades
= Complete
August 14, 2009
= In Process
3
= Not Started
RPG Meeting
2009 Five-Year Transmission Plan
2014 Reliability Projects
“Preliminary” Final List
August 14, 2009
4
RPG Meeting
Galveston/ South Houston area projects
August 14, 2009
5
RPG Meeting
Galveston/ South Houston area projects
Upgrade the PH Robinson - Alta Loma (42015-42061) 138 kV line so that the circuit
Rate A and B are 292 and 368 MVA; respectively.
Centerpoint
Upgrade Webster - Capedum - Tikki (4335-42862-43500) 138 kV line inorder to
achieve ratings of 220,280 and 280 MW for Rate A,B and C;respectively; and
Upgrade the Galveston - Tikki Island (42670-43355) 138 kV line so that the circuit
Rate A and B are 220 and 280 MVA; respectively.
Centerpoint
Upgrade the La Marque - C'Webster (42861-43507) 138 kV line so that the circuit
Rates A and B are 220 and 280 MVA; respectively; and
Upgrade the La Marque - Stewart (42861-43290) 138 kV line so that the circuit
Rate A and B are 220 and 280 MVA; respectively.
Centerpoint
Upgrade the Hitchcock - West Galveston (42800-43400) 138 kV line so that the
circuit Rate A and B are 220 and 280 MVA; respectively.
Centerpoint
Upgrade the Terminal Equipment for Texas City Water - Heights (39280-38770) 69
kV line so that the circuit Rate B is 92 MVA; and
Upgrade the Terminal Equipment for Texas City Water - Intercity (39280-39310) 69
kV line so that the circuti Rate B is 92 MVA.
TNMP
Upgrade the Terminal Equipment for Intercity - Lamrque (39310-39340) 69 kV line
so that the circuit Rate B is 75 MVA.
TNMP
Upgrade the Hastings - Alvin tie Station (39010-39015) 138 kV line to 326 MVA.
TNMP
August 14, 2009
6
RPG Meeting
Central-East area projects
August 14, 2009
7
RPG Meeting
Central-East area projects
Upgrade the Dialville (3161-3160) 69/138 kV auto-transformer so that Rate B is 88
MVA.
Oncor
Add a new 45 MVA (69/138 kV) auto at Bellville South (7269-7270).
LCRA
Upgrade the 138/69 kV auto-transformer at Hilltop Lakes (47-48) to 100 MVA
BEPC
(a) Upgrade the Terminal Equipment for Elkton - Tyler Bullard (3106-3219) 138 kV
line such that the circuit Rate B is 334 MVA; and
(b) Upgrade the Terminal Equipment for Tyler Bullard - Tyler (3219-3220) 138 kV
line such that the circuit Rate B is 334 MVA.
Oncor
August 14, 2009
8
RPG Meeting
South Texas area projects
August 14, 2009
9
RPG Meeting
South Texas area projects
Upgrade the Terminal Equipment for Robstown -CityofRobstown (8884-8885) 69kV
line so that the circuit Rate B is 173 MVA; and
Upgrade the Calallen Substation - Lon Hill (5626-8448) and Robstown - Lon Hill
(8884-8448) 69 kV lines to 225/244/244 MVA..
August 14, 2009
10
AEP/TCC
RPG Meeting
Central-South area projects
August 14, 2009
11
RPG Meeting
Central-South area projects
Upgrade Terminal Equipment for Gillespie to Live Oak (7130-7412), 69kV
LCRA
Add a second 69/138 kV auto at Bandera station(7438-7439)
LCRA
Upgrade the Luling City - Lockhart - San Marcos 69 kV line to 138 kV service
LCRA
Upgrade the Live Oak - Fredericksburg (7413-7415) 69 kV line to 109 MVA.
LCRA
Add a second 45 MVA ( 69/138 kV) auto at Gillespie (7130-7132).
LCRA
Upgrade the 69/138 kV auto-transformer at Fredericksburg (7149-7415) to 117
MVA.
LCRA
August 14, 2009
12
RPG Meeting
Greater North Austin area projects
August 14, 2009
13
RPG Meeting
Greater North Austin area projects
Build a new 717 MVA Mcneil - Hamilton (9079-9202) 138 kV line on existing ROW
and open the 138 kV tie line at Hamilton (9202-9203). Move the Summit - Hamilton
(9280-9202) 138 kV line to the other Hamilton bus (9203).
AEN/LCRA
Add a second 138/345 kV (686 MVA) auto-transformer at Hutto (3696-3666).
Oncor
Upgrade Gilleland Creek - Gilleland (7336-9054) 138 kV bus tie so that Rate A, B
and C are 640, 710 and 710 MVA; respectively.
LCRA/AEN
Upgrade the Whitestone - Buttercup (7529-7531) 138 kV line to 440 MVA.
LCRA
Upgrade the Round Rock - Chief Brady (3668-7366) 138 kV line to 326 MVA.
LCRA/Onc
or
Upgrade the Lago Vista - Marshall Town (7352-7356) 138 kV line to 440 MVA.
LCRA
August 14, 2009
14
RPG Meeting
Killeen/ Waco area projects
August 14, 2009
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RPG Meeting
Killeen/ Waco area projects
Upgrade Waco East (3438)-Waco Northeast (3551) from 214/214/214 to
484/484/484 MVA
Oncor
Add a second auto at Killeen SS (3422-3423);and
Upgrade Killeen SS (3423)-Killeen South (3428) and Killeen South (3428)-Killeen
Fort Hood Tap (3627) from 214/214/214 to 326/326/326 MVA.
Oncor
Rebuild Robinson to Robinson northwest to 734 MVA (3567-3568).
Oncor
August 14, 2009
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RPG Meeting
San Angelo area projects
August 14, 2009
17
RPG Meeting
San Angelo area projects
Close the Saps to Yellowjacket (6479-6483) 138 kV line.
AEP/TNC
Upgrade the 69/138 kV auto-transformer at San Angelo Concho (6450-6452) to 117
MVA.
AEP/TNC
August 14, 2009
18
RPG Meeting
Midland/ Odessa area projects
August 14, 2009
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RPG Meeting
Midland/ Odessa area projects
Rebuild Moss to Odessa North(1019-1129, 1129-1130,1130-1122) to 326 MVA, 138
kV
Oncor
Upgrade CRAN170(1198-6613) tie to Rate A109 MVA, Rate B 109 MVA, 69 kV
Oncor
Upgrade the Mildland East - Windwood (1023-1116) 138 kV line to 326 MVA.
Oncor
Upgrade the Ackerly - Ackerly Vealmoor - Ackerly Lyntegar - Sparenburg - Lamesa
(1356-1362-1363-1364-1164) 69 kV line to 109 MVA.
Oncor
Upgrade the Odessa North - North Cowden (1123 - 1259) 69 kV line to 109 MVA.
Oncor
Upgrade the Holt - Emma Tap (1142-1262) 69 kV line to 109 MVA.
Oncor
Add a third 345/138 kV (520 MVA) auto-transformer at Odessa (1027-1028).
Oncor
August 14, 2009
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RPG Meeting
Northwest of DFW area projects
August 14, 2009
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RPG Meeting
Northwest of DFW area projects
Upgrade Olney - Rice Switch (787-1477) 138 kV line to 326 MVA.
BEPC
Upgrade the Montague - Johnson Switch - Bowie (633-632-621) 69 kV line to 109
MVA.
BEPC
August 14, 2009
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RPG Meeting
North DFW area projects
August 14, 2009
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RPG Meeting
North DFW area projects
Add a second circuit to Austin Ranch #1 (2378) - Colony(2518),
Collin #1(2370) - Roman Juarez Bec POI (2688), Austin Ranch#1 (2378) Plano Communication Parkway 2 (2570) - Spring Creek 2 Bec (2664), and
Plano Tennyson
Parkway (2523) - Spring Creek 2 Bec (2664).
Oncor
Build second circuits of Jim Christal (916)-West Denton (986), Fort Worth (919)West Denton (986), Teasley (918)-Fort Worth (919), and Jim Christal (916)North Denton (985); and
Reconductor Teasley (918)-Pockrus (917) and Pockrus (917)-Denton Steam
(982) with 959 ACCS/TW 335 MVA.
DNTN/TMP
A
Upgrade Frisco (681)-Collin #1 (2370) to 326/326/326/MVA; and
add a second 345/138 kV auto at Collin SS (2372-2370).
Oncor
Upgrade Payne (1758)-Epco Rcec POI (12468), Epco Rcec POI (12468)-M&M POI
(1767), and Alla-Hubbard GCEC Pod (1757)-M&M POI (1767) to 326/326/326
MVA
Oncor
Add 2nd 700 MVA (345/138 kV) auto at Lewisville SW(645-646).
BEPC
Rebuild Highland TNP to West TNP 138 kV line (37050-37060) to 326 MVA.
TNMP
August 14, 2009
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RPG Meeting
Northeast DFW area projects
August 14, 2009
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RPG Meeting
Northeast DFW area projects
Add Lavon Switching Station (2475), tapped to Allen Switching Station (2514)Royse (2461); and
Build a 138 kV line Lavon Switching Station (2475)-Wylie Metering Point (2693)
Oncor
Upgrade the Ben Davis - Parker Maxwell Creek (968-2477) 138 kV line to 326
MVA.
Oncor/TMPA
August 14, 2009
26
RPG Meeting
DFW area projects
August 14, 2009
27
RPG Meeting
DFW area projects
Add second circuits to Mesquite West (2754)-Mesquite East SS (2756), Mesquite
West (2754)-Mesquite Western Electric (2759), and Mesquite Western Electric
(2759)-Prairie Creek Switch (2441);
Oncor
Add a second auto at Sargent Road Switching Station (2946-2949); and split buses
at West Levee.
Oncor
Add a 345/138 kV (600 MVA) auto-transformer at Alliance; and build Alliance Heritage Tap 1 (12033) and Alliance - Heritage (599) - Keller Magnolia (2034) 138
kV lines of 597 MVA .
Oncor
Upgrade Industrial E (2976)-Compton 1 (2981), from 173/173/173 and Cedar Crest
E (2494)-Compton 1 (2981) from 186/186/186 to 287/287/287 MVA.
Oncor
Build Handley Ses (1952)-Duval (2158) 138 kV line and operate it at 69 kV.
Oncor
Upgrade the Sargent Road - ST Augustine (2941-2951) 138 kV lline to 326 MVA.
Oncor
Upgrade the Cedar Crest T - Cedar Crest - South Oak Cliff (2495-2493-3024) 138
kV line to 326 MVA.
Oncor
Add a 2nd 556 MVA (345/138 kV) auto transformer at Cedar Hill (2420-2421).
Upgrade the Mt Creek - Cedar Hill South (2411-2421) and Mt Creek E - Cedar Hill
North (2412-2422) 138 kV lines to 326 MVA. Split the West Levee bus by opening
the two tie lines (2400-2800 & 2399-2479).
Oncor
August 14, 2009
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RPG Meeting
West weather zone load forecast
• Comparison of SSWG and ERCOT West weather zone peak load
– Flat load and private network load removed
– Does not include transmission system losses
SSWG
ERCOT
Difference
2010
1634
1672
2.3%
2014
1715
1954
13.9%
Total Growth
5.0%
16.9%
11.9%
• For 2009 5YTP 2014 reliability case the West weather zone load was
scaled up proportionately at each bus
• Resulted in two additional projects:
– Upgrade the 69/138 kV auto-transformer at San Angelo Concho (64506452) to 117 MVA
– Upgrade the 69/138 kV auto-transformer at Fredericksburg (7149-7415) to
117 MVA
August 14, 2009
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RPG Meeting
2009 Five-Year Transmission Plan
2014 Economic Analysis
Preliminary Results
August 14, 2009
30
RPG Meeting
2010 Five-Year Transmission Plan
• Asked for scope and process comments at July RPG meeting
•
No comments received to date
•
Please send comments to jbillo@ ercot.com
(remove space)
August 14, 2009
31
RPG Meeting
Questions?
August 14, 2009
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RPG Meeting