1. Administrative Items SPP 2. Stakeholder Web ... · ERSC Agenda 1. Study Overview Study Status...

Southwest Power Pool, Inc. ENTERGY REGIONAL STATE COMMITTEE MINIMIZING BULK POWER COSTS STUDY

STAKEHOLDER MEETING

Face-to-face & Web-conference Hyatt Regency DFW – DFW Airport, TX

Room: Maverick

• A G E N D A •

July 20, 2011 2:00 – 4:00 P.M. CT

1. Administrative Items ........................................................................... SPP

2. Stakeholder Web-Presentation ........................................................... ABB

Relationship-Based • Member-Driven • Independence Through Diversity

Evolutionary vs. Revolutionary • Reliability & Economics Inseparable

ERSCERSC

ABB Inc. , Electric System Consulting Dept.

MBPC Study – Stakeholder UpdatePreliminary & Partial Results for Review & Discussion

Entergy Regional State Committee (ERSC)Entergy Regional State Committee (ERSC)Southwest Power Pool (SPP)

July 20, 2011y

© ABB Group July 20, 2011 | Slide 1

ERSC Agenda

1. Study OverviewStudy StatusStudy Approach

2. 2013 Results for Western Region - Production Costing & Power FlowFlow

3. 2013 Results for WOTAB Region - Production Costing & Power FlowFlow

4. 2013 Results for DSG Region - Production Costing & Power Flow

5. 2013 Preliminary results for Amite South6. Next Steps7. Q&A


ERSC Study Status

2013 analyses completed for Western, WOTAB and DSG study regions

2013 preliminary analysis for Amite South study region

2022 reference cases (both production cost and power flow) completedp ) p


ERSC

Study MethodologyStudy Methodology


ERSC Study Approach - Overview


ERSC Study Procedure

fCase Name DefinitionCase_0 Reference case

Case_1 No nomogram(s) on study units; _ g ( ) y ;Study units available for dispatch

Case_2 Case_1 +No transmission limits in study region for production costing analysis

Case_3 Case 0 + No nomogram(s) on study units +Study units turned off

Case_4 Case_3 +No transmission limit in study region for productioncosting analysisg y

Case_5A Case_3 with Transmission Solution


ERSC Adjusted Production Cost

Entergy Footprint’s Adjusted Production Cost =

Entergy Footprint’s units production cost +

Energy Import to Entergy Footprint’s cost

Energy Import Cost = (hourly import flow * hourly simple average gy p ( y p y p garea LMP of both sending and receiving

ends)


ERSC Cost Benefit Range Estimation

Estimate cost-benefit of transmission solutions by comparing the annual d ti t i i t th li d it l t fproduction cost savings against the annualized capital costs of new

transmission. This will be used as a guideline in selecting cost effective transmission solution

Annualized capital cost = Transmission solution capital cost * Carrying Charge


ERSC

2013 Western Region Analysis2013 Western Region Analysis


ERSC Western Region Analysis – Case List

The following cases were simulated:

Case Name DefinitionCase Name Definition

West_0 Reference case

West_1 Same as West_0 with Western region nomogram(s) off (study units available for dispatch)

West_2 Same as West_1 with no Western area transmission limits and no limits on 8 tie‐lines between Western &

d lWOTAB in production costing analysisWest_3 Same as West_0 with Western study units turned off

West_4 Same as West_3 with no Western area transmission limits and no limits on 8 tie‐lines between Western & WOTAB in production costing analysis


ERSC Western Region Analysis – Dispatch

Production costing and power flow analysis performed in parallel

Western Region generation dispatch and import at Entergy System peak load hour (Aug. 26, 2013 @ 3 pm) are shown below:

West 0 West 2 West 3 West 4 West_0 West_2 West_3 West_4

Total Generation 712 850 451 483

Lewis Creek 468 520 0 0

Frontier 245 330 281 330

Pelican Road 0 0 170 153

Import into Western 1270 1125 1546 1513Import into Western 1270 1125 1546 1513


ERSC Western Region Analysis – Power Flow

Steady-state performance was evaluated to determine the impact of displacing the high cost units in the Western study regionregion

Several problems were noted with the displacement of the Western region study units in Cases West 3 and West 4Western region study units in Cases West_3 and West_4

Voltage collapse for selected double contingencies:

f GAlso voltage collapse for several G1N1 contingencies

Initial solutions were developed based on SPP-ICT and E t i t t iti t th lt ll bl dEntergy input to mitigate the voltage collapse problems and power flow analysis was repeated


ERSC Western Region Analysis – Power Flow (Contd.)

Results showed thermal overloads on several transmission facilities such as:

Jacinto-Splendora 138 kV line

Eastgate – Dayton 138 kV line

Dayton – New Long John 138 kV line

Lewis Creek 230/138 kV transformer

Lewis Creek – Peach Creek 230 kV line

Peach Creek – Jacinto 230 kV line

Several other facilities within and outside Western

Also several voltage violations within and outside WesternAlso, several voltage violations within and outside Western

Incremental solutions were developed and tested based on SPP-ICT and Entergy input to resolve Western region violations

Mitigation of violations outside Western study region will be done later© ABB Group July 20, 2011 | Slide 13


Preferred transmission solution set for 2013:Facility

Cypress - Jacinto 230 kV with 70% Series CompensationJacinto - Porter 230 kV2nd 230/138 kV auto-transformer at Porter Cut-in existing Jacinto-Splendora 138 kV line at Cleveland Orange County ProjectOrange County Project Navasota - Sota Terminal Equipment upgradeRe-conductor Grimes-Mt. Zion-Huntsville 138 kV 3rd 345/138 kV auto-transformer at Grimes Upgrade terminal equipment for Leach - Toledo 138 kVRe-conductor Sabine - Port Neches 138 kV (line 515 & 516) Upgrade Cleveland - Jacinto 138 kV Porter-Oakridge 138 kV reconductorTotal $ 314,509,906



Upgrade terminal equipment on Leach – Toledo

Upgrade 138 kV line from Grimes

– Mt. Zion ‐Huntsville

Bend

Grimes

New 230 kV line from Cypress to

Cypress

JacintoLewis Creek

Cypress to Jacinto

Bring Jacinto –

Orange County Project

Add 3rd 345/138 kV transformer at

Grimes

New 230 kV line from

Bring Jacinto Splendora 138 kV into Cleveland

Upgrade terminal equipment on Navasota ‐ Sota

Porter Jacinto to PorterAdd 2nd 230/138

kV transformer at Porter


ERSC

2013 WOTAB Region Analysis2013 WOTAB Region Analysis


ERSC WOTAB Region Analysis – Case ListThe following cases were simulated:

Case Name Definition

WOTAB_0 Reference case

WOTAB_1 Same as WOTAB_0 with Western and WOTAB region nomogram(s) off (study units available for dispatch)

WOTAB 2 Same as WOTAB 1 with no Western and WOTABWOTAB_2 Same as WOTAB_1 with no Western and WOTAB transmission limits in production costing analysis

WOTAB_3 Same as WOTAB_0 with Western and WOTAB study units turned off

WOTAB_4 Same as WOTAB_3 with no Western and WOTAB transmission limits in production costing analysis


ERSC Power Flow Analysis for WOTAB

Steady-state performance was evaluated to determine the impact of displacing high cost units in Western and WOTAB study regionsstudy regions

Several problems were noted with the displacement of high cost units in cases WOTAB 3 and WOTAB 4cost units in cases WOTAB_3 and WOTAB_4

Voltage collapse for several contingencies

f GAlso voltage collapse for several G1N1 contingencies


ERSC WOTAB Region Analysis – Power Flow (Contd.)

Also, results showed large pre- and post-contingency thermal overloads on several transmission facilities such as:

Cypress 500/138 kV transformer

Nelson 500/230 kV transformer

Grimes 345/138 kV transformers

China-Amelia 230 kV line

Helbig – McLewis 230 kV line

Hartburg – Inland 230 kV lineg

Several other facilities within and outside Western & WOTAB

Also several voltage violations within and outside Western & WOTABAlso, several voltage violations within and outside Western & WOTAB

Incremental solutions were developed and tested based on SPP-ICT and Entergy input to resolve Western and WOTAB region violations

Mitigation of violations outside these study regions will be done later© ABB Group July 20, 2011 | Slide 19

ERSC WOTAB Region Analysis – Power Flow (Contd.)

Preferred transmission solution set for 2013:

FacilityFacilityCypress - Jacinto 230 kV

Jacinto - Porter 230 kV

2nd 230/138 kV auto-transformer at Porter

Cut-in existing Jacinto-Splendora 138 kV line at Cleveland

Orange County Project (minus Hartburg - Chisolm Rd 230 kV)

Navasota - Sota Terminal Equipment upgrade

Re-conductor Grimes-Mt. Zion-Huntsville 138 kV

3rd 345/138 kV auto-transformer at Grimes

Upgrade terminal equipment for Leach - Toledo 138 kV

Re-conductor Sabine - Port Neches 138 kV (line 515 & 516)

Upgrade Cleveland - Jacinto 138 kV

Richard - Nelson 230 kV

Nelson - Sabine 230 kV

Hartburg - Sabine 500 kV

2nd Cypress 500/138 kV auto-transformer

Upgrade terminal equipment at Newton Bulk for Leach - Toledo 138 kVg

Tubular - Dobbin 138 kV upgrade

Upgrade Grimes - Walden (BENTWATER) 138 kV

Porter-Oakridge 138 kV reconductor

Addis - Tiger upgrade to 704 MVAg pg

Total $ 636,186,906


ERSC WOTAB Transmission Solutions

Upgrade Newton Bulk to Leach 138 kV line Leach

New 230 kV line from Richard to

138 kV line

Re‐conductor of Tubular to Dobbin

138 kV line

Newton Bulk

Nelson

Hartburg

DobbinCypress

Add 2nd 500/138 kV transformer at

Cypress

New 500 kV line from Hartburg to Sabine

Tubular

Richard

Nelson

SabineAddition of Addition of 2 (two)

500/230 kV transformers at

S bi

New 230 kV line from Nelson to

HartburgNew 500 kV New 500 kV Substation at Sabine

© ABB Group

July 20, 2011 | Slide 21

Sabine

ERSC WOTAB (Cont...)

Western Transmission SolutionsUpgrade terminal equipment on Leach – Toledo

Upgrade 138 kV line from Grimes

– Mt. Zion ‐Huntsville

Bend

Grimes

New 230 kV line from Cypress to

Cypress

JacintoLewis Creek

Cypress to Jacinto

Bring Jacinto –

Orange County Project

Add 3rd 345/138 kV transformer at

Grimes

New 230 kV line from

Bring Jacinto Splendora 138 kV into Cleveland

Upgrade terminal equipment on Navasota ‐ Sota

Porter Jacinto to PorterAdd 2nd 230/138

kV transformer at Porter

© ABB Group

July 20, 2011 | Slide 22

22

ERSC

2013 DSG Region Analysis2013 DSG Region Analysis


ERSC DSG Region Analysis – Case ListThe following cases were simulated:

Case Name DefinitionCase Name Definition

DSG_0 Reference case

DSG_1 Same as DSG_0 with DSG region nomogram(s) off (study units available for dispatch)

DSG_2 Same as DSG_1 with no DSG area transmission limits and no limits on 9 tie‐lines between DSG & Entergy f d lfootprint in production costing analysis

DSG_3 Same as DSG_0 with DSG study units turned off

DSG_4 Same as DSG_3 with no DSG area transmission limits and no limits on 9 tie‐lines between DSG & Entergy footprint in production costing analysis


ERSC DSG Region Analysis – Power Flow

Steady-state performance was evaluated to determine the impact of displacing the high cost units in the DSG study region

Several problems were noted with the displacement of the DSG region study units in Cases DSG_3 and DSG_4

Results showed thermal overloads on several transmission facilities such as:

Snake Farm – Labarre 230 kV (146%)

Prospect – Goodhope 230 kV (120%)

Valentine – Clovelly 115 kV (133%)

Tezcuco – Waterford 230 kV (119%)

Waterford – Gypsy 230 kV (108%)

Several other facilities within and outside DSG

Also, several voltage violations within and outside DSG© ABB Group July 20, 2011 | Slide 25

ERSC DSG Region Analysis – Power Flow (Contd.)

Preferred transmission solution set for 2013:

FacilitySnakefarm - Labarre 230 kV

DSG Reliability Improvements: Phase 3

Valentine - Clovelly 115 kV line

Willow Glen to Conway 230 kV line

Third Adams Creek to Bogalusa 230 kV line

Total Cost: $115,015,000

Note:DSG Phase 3 improvements include the following facilities:

- Add 4.5mile, 230 kV circuit between Gypsy and Hooker 230 kVyp y

- Remove Waterford – Hooker 230 kV and Waterford – Gypsy 230 kV circuit #2

- Re-terminate reactor at Waterford 230 kV on the Union Carbide line

- Convert Waggaman substation to 230kV

- Remove existing Luling – Waggaman-9Mile 115 kV

- Add Waterford - Waggaman – 9Mile 230 kV line

- Upgrade Luling – American Cynamide 115 kV

- Upgrade Gypsy – Claytonia 115 kV


pg yp y y

- Re-configure Luling – Gypsy 115 kV

ERSC DSG Transmission Solutions

Bogalusa Add a new Bogalusa ‐ Adams Creek #3

Adams Creek

Conway 230 kV lineAdd a new Willow Glen –

Conway 230 kV line

Labare 230 kV line

Re‐conductor of Snake Farm to

Labare 230 kV line

Willow Glen

Snake Farm

Conway

DSG Phase‐3 upgrades

Labare

V l ti

upgrades

Clovelly

Valentine

Upgrade Valentine to Clovelly 115 kV

© ABB Group

July 20, 2011 | Slide 27

y

ERSC

2013 Amite South Analysis2013 Amite South Analysis


ERSC Amite South Region Analysis – Case List

Case Name Definition

• The following cases were simulated:

AMS_0 Reference case

AMS_1 Same as AMS_0 with nomogram(s) off (study units available for di t h)dispatch)

AMS_2 Same as AMS_1 with no AMS area transmission limits and no limits between AMS & Entergy footprint in production costing analysisanalysis

AMS_3 Same as AMS_0 with AMS study units turned off

AMS 4 Same as AMS 3 with no AMS area transmission limits and noAMS_4 Same as AMS_3 with no AMS area transmission limits and no limits between AMS & Entergy footprint in production costing analysis

ERSC Amite South Region Analysis – Power Flow

S d f l d d i h• Steady‐state performance was evaluated to determine the impact of displacing the high cost units in the AMS study regiong

• The case AMS_3 was found to result in un‐served load, possibly due to transmission constraints between AMS and rest of the system and unavailability of necessary generation inside AMS; No transmission analysis was performed with thisinside AMS; No transmission analysis was performed with this case

• Several problems were noted with the displacement of the AMS region study units in Cases AMS_4

ERSC Amite South Region Analysis – Power Flow (Cont’d)

• Results showed reliability concerns as under:Potential Voltage collapse for several facility– Potential Voltage collapse for several facility outages with or without additional generator outagesoutages

ERSC Amite South Region Analysis – Power Flow (Cont’d)

• Thermal Overloads such as:– Bogalusa – Franklin 500 kV (115%) for outage of Mcknt – Frklin 500 kV– Waterford – Gypsy 230 kV (123%) for loss of the other, parallel circuit– Waterford – 9Mile 230 kV (108%) for outage of Wesco – Prspct 230 kV

Tezcuco Waterford (132%) for outage of Waterford Gypsy 230 kV– Tezcuco – Waterford (132%) for outage of Waterford – Gypsy 230 kV –this facility showed a system intact loading of 105%.

– Raceland – Pardis 115 kV (115%) for the outage of Gypsy 230/115 kV transformertransformer

– Valentine – Clovelly 115 kV (128%) for outage of Wesco – Prspct 230 kV – this facility was loaded to 114% in the system intact condition

– Polscar –AAC‐Licar‐Bell He showed up to 109% loading for Tezcuco –Waterford 230 kV outage

– The loss of Wells – Webre 500 kV showed overload on Teche –Waxlake – El Passo – Bvista – Berwick – Ramos 138 kV (up to 134% on Teche – Waxlake section)

ERSC

Next StepsNext Steps


ERSC Next Steps

• Develop and Test Transmission Solution(s) for 2013 Amite South

St d WOTAB W t A it S th d DSG f 2022• Study WOTAB, Western, Amite South and DSG for year 2022


ERSC Q & A

Thank you!Thank you!


1. Administrative Items SPP 2. Stakeholder Web ... · ERSC Agenda 1. Study Overview Study Status...

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