2011 SERTP Annual SERTP Summit Annual SERTP Summit 1 2011 SERTP - - PowerPoint PPT Presentation

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2011 SERTP Annual SERTP Summit Annual SERTP Summit 1 2011 SERTP - - PowerPoint PPT Presentation

2011 SERTP Annual SERTP Summit Annual SERTP Summit 1 2011 SERTP Welcome Welcome 2011 Annual SERTP Summit 2011 Annual SERTP Summit 10:00 AM 10:00 AM 5:00 PM EST 5:00 PM EST (Lunch served at approximately 11:30 PM) (Lunch served at


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SLIDE 1

Annual SERTP Summit Annual SERTP Summit

2011 SERTP

1

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SLIDE 2

Welcome Welcome

2011 SERTP

2011 Annual SERTP Summit 2011 Annual SERTP Summit

10:00 AM 10:00 AM – 5:00 PM EST 5:00 PM EST (Lunch served at approximately 11:30 PM) (Lunch served at approximately 11:30 PM)

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SLIDE 3
  • The SERTP process is a transmission

The SERTP process is a transmission planning process. planning process.

  • Please contact the respective

Please contact the respective

2011 SERTP

3

  • Please contact the respective

Please contact the respective transmission provider for questions transmission provider for questions related to real related to real-time operations or OATT time operations or OATT transmission service. transmission service.

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SLIDE 4

Purposes and Goals of the Meeting Purposes and Goals of the Meeting

2011 Economic Planning Study Results 2011 Economic Planning Study Results Miscellaneous Updates Miscellaneous Updates Ten Year Expansion Plan Ten Year Expansion Plan

  • East

East

  • West

West

2011 SERTP

  • West

West

Preliminary 2012 Modeling Assumptions Preliminary 2012 Modeling Assumptions

  • Load Forecast

Load Forecast

  • Generation Assumptions

Generation Assumptions

Stakeholder Feedback / Input Stakeholder Feedback / Input Order 1000 Implementation Process & Timeline Order 1000 Implementation Process & Timeline Projected 2012 SERTP Process Projected 2012 SERTP Process

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SLIDE 5

Economic Planning Studies Economic Planning Studies

2011 SERTP

5

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SLIDE 6

2011 SERTP

Three Economic Planning Studies Three Economic Planning Studies

TVA Border to Southern Balancing Authority TVA Border to Southern Balancing Authority

  • 3500 MW

3500 MW

EES Border to Southern Balancing Authority EES Border to Southern Balancing Authority

  • 1500 MW

1500 MW

6

  • 1500 MW

1500 MW

SCPSA Border to Southern Balancing Authority SCPSA Border to Southern Balancing Authority

  • 1000 MW

1000 MW

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SLIDE 7

2011 SERTP

Power Flow Cases Utilized Power Flow Cases Utilized

Study year: 2016 Study year: 2016 Load Flow Cases: Load Flow Cases:

  • 2011 Series Version 2A

2011 Series Version 2A

7

  • 2011 Series Version 2A

2011 Series Version 2A

  • Summer Peak

Summer Peak

  • Shoulder

Shoulder

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SLIDE 8

2011 SERTP

Economic Planning Studies Economic Planning Studies

Final Report Components: Final Report Components:

  • Thermal Analysis

Thermal Analysis

  • Contingency Analysis to identify constrained

Contingency Analysis to identify constrained

8

  • Contingency Analysis to identify constrained

Contingency Analysis to identify constrained elements/contingency pairs elements/contingency pairs

  • Interface Transfer Capability Impacts

Interface Transfer Capability Impacts

  • Stability Impacts

Stability Impacts

  • Potential Solutions

Potential Solutions

  • Transmission Enhancements and Cost

Transmission Enhancements and Cost Estimates Estimates

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SLIDE 9

2011 SERTP

  • The following information does not represent a

The following information does not represent a commitment to proceed with the recommended commitment to proceed with the recommended enhancements nor implies that the recommended enhancements nor implies that the recommended enhancements could be implemented by the study enhancements could be implemented by the study date of 2016. date of 2016.

9

date of 2016. date of 2016.

  • These potential solutions only address constraints

These potential solutions only address constraints identified within the SERTP Sponsors’ areas that identified within the SERTP Sponsors’ areas that are associated with the proposed transfers. Other are associated with the proposed transfers. Other Balancing Areas were not monitored which could Balancing Areas were not monitored which could result in additional limitations and required system result in additional limitations and required system enhancements. enhancements.

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SLIDE 10

TVA Border TVA Border to to

10

SBA SBA

3500 MW 3500 MW

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SLIDE 11

TVA Border to SBA 3500 MW

  • Transfer Type:

Transfer Type: Generation to Generation Generation to Generation

  • Source:

Source: New generator interconnecting to the New generator interconnecting to the Shelby 500 kV substation (TVA) near Shelby 500 kV substation (TVA) near Memphis, TN Memphis, TN

  • Sink:

Sink: Generation within the SBA Generation within the SBA

11

Source Sink

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SLIDE 12
  • System improvements added to the TVA model

System improvements added to the TVA model

Project Description

1 Constructed Constructed a new, new, parallel parallel 500 500 kV kV T.L. from from Shelby Shelby to to Cordova Cordova 2 Constructed Constructed a new new 500 500 kV kV T.L. from from Johnsonville Johnsonville to to Maury Maury 3 Constructed Constructed a new new 500 500 kV kV T.L. from from Jackson Jackson to to Lagoon Lagoon Creek Creek

TVA Border to SBA 3500 MW

12

3 Constructed Constructed a new new 500 500 kV kV T.L. from from Jackson Jackson to to Lagoon Lagoon Creek Creek 4 Uprated Uprated the the Pleasant Pleasant Hill Hill – Benton Benton 500 500 kV kV T.L. 5 Uprated Uprated the the Pleasant Pleasant Hill Hill – Union Union 500 500 kV kV T.L. 6 Uprated Uprated the the Shelby Shelby – Cordova Cordova 500 500 kV kV T.L. #1 7 Uprated Uprated the the Jackson Jackson – Haywood Haywood 500 500 kV kV T.L.

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SLIDE 13

1%

29% 33% 10% DUKE 16% SMEPA APC

0%

8% 20% GA ITS

1%

TVA

13 13

Source Sink

0%

5%

1%

APC MPC

1% 0.5%

Gulf

2%

PSEC GA ITS

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SLIDE 14

TVA Border to SBA 3500 MW

Transmission System Impacts Transmission System Impacts

Thermal Constraints Identified: Thermal Constraints Identified:

  • Five (5) 230 kV Lines

Five (5) 230 kV Lines

  • Two (2) 161 / 115 kV Transformers

Two (2) 161 / 115 kV Transformers

14

  • Four (4) 161 kV Lines

Four (4) 161 kV Lines

  • Twenty (20) 115 kV Lines

Twenty (20) 115 kV Lines

Total Cost (2011$) = $193,600,000 Total Cost (2011$) = $193,600,000

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SLIDE 15

TVA Border to SBA 3500 MW

Southern Balancing Southern Balancing Authority Authority

15

Screen Results Screen Results

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SLIDE 16

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Lexington Lexington – – East Watkinsville 230 kV TL East Watkinsville 230 kV TL 602 602 93.7 93.7 105.8 105.8

TVA Border to SBA 3500 MW

16

Bio Bio – – Vanna Vanna 230 kV TL 230 kV TL 433 433 96.2 96.2 106.9 106.9 Russell Russell – – Lexington 230 kV TL Lexington 230 kV TL 596 596 98.0 98.0 110.3 110.3

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SLIDE 17

Significant Constraints Significant Constraints

APC GA ITS

17

MPC Gulf

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SLIDE 18

Bio

(To DUKE)

Middlefork Hartwell Energy Hartwell Dam

(To DUKE)

Bio Vanna Center Lexington Russell Dam

(To SCPSA)

S Hall Athena Plant Dahlberg

  • E. Watkinsville

Winder

P1

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SLIDE 19

Significant Constraints Significant Constraints – – PASS 1 PASS 1

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request South Hall South Hall – – Candler 230 kV TL Candler 230 kV TL 509 509 94.9 94.9 105.7 105.7

TVA Border to SBA 3500 MW

19

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SLIDE 20

Significant Constraints Significant Constraints

APC GA ITS

20

MPC Gulf

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SLIDE 21

South Hall Buford Dam

Candler Spout

Center

P3

Plant Dahlberg

Winder Primary

GTC Doyle

Braselton

Athena

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SLIDE 22

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Gaston Gaston – – Power Systems 230 kV TL Power Systems 230 kV TL 602 602 92.9 92.9 108.4 108.4

TVA Border to SBA 3500 MW

22

Power Systems Power Systems – – Fayetteville DS 230 kV TL Fayetteville DS 230 kV TL 577 577 96.6 96.6 112.8 112.8 Fayetteville DS Fayetteville DS – – Co. Line Rd 230 kV TL

  • Co. Line Rd 230 kV TL

577 577 95.7 95.7 111.9 111.9 Mitchell Dam Mitchell Dam – – Clanton Tap 115 kV TL Clanton Tap 115 kV TL 138 138 97.0 97.0 104.6 104.6

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SLIDE 23

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request GKN Westland Aerospace GKN Westland Aerospace – – Halla Halla Climate Climate 107 107 92.6 92.6 106.0 106.0

TVA Border to SBA 3500 MW

23

Control 115 kV TL Control 115 kV TL 107 107 92.6 92.6 106.0 106.0 Alex City Tap Alex City Tap – – Kellyton Kellyton 115 kV TL 115 kV TL 113 113 97.1 97.1 106.0 106.0 Kellyton Kellyton – – Sunny Level Tap 115 kV TL Sunny Level Tap 115 kV TL 113 113 99.0 99.0 107.8 107.8 Hollins Hollins – – Sunny Level Tap 115 kV TL Sunny Level Tap 115 kV TL 113 113 99.8 99.8 114.1 114.1 Sylacauga Sylacauga – – Hollins Hollins 115 kV TL 115 kV TL 113 113 104.6 104.6(1)

(1)

119.1 119.1

(1) (1) A current operating procedure is sufficient to alleviate this constraint without the

A current operating procedure is sufficient to alleviate this constraint without the addition of the proposed transfer. However, the additional transfer exacerbates the addition of the proposed transfer. However, the additional transfer exacerbates the loading on this facility such that the operating procedure becomes insufficient. loading on this facility such that the operating procedure becomes insufficient.

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SLIDE 24

Significant Constraints Significant Constraints

APC GA ITS

24

MPC Gulf

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SLIDE 25

Plant Gaston

Hollins

Lay Dam Mitchell Dam

Sylacauga Hillabee Kellyton

Harris Dam

Alexander City Tap

P2 P2 P16

25

Autaugaville Plant Franklin Bouldin Dam Jordan Dam Thurlow Dam Yates Dam Martin Dam Billingsly Snowdoun County Line Rd.

Clanton GKN Westland Halla Climate

P12

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SLIDE 26

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Oakman Oakman Tap Tap – – Gorgas 161 kV TL Gorgas 161 kV TL 193 193 80.7 80.7 122.6 122.6

TVA Border to SBA 3500 MW

26

Oakman Oakman Tap Tap – – Berry 161 kV TL Berry 161 kV TL 193 193 81.2 81.2 123.0 123.0 Pitts & Midway Tap Pitts & Midway Tap – – Berry 161 kV TL Berry 161 kV TL 193 193 83.4 83.4 125.2 125.2 Pitts & Midway Tap Pitts & Midway Tap – – Bankston Bankston 161 kV TL 161 kV TL 193 193 92.0 92.0 133.9 133.9 Fayette CS Fayette CS – – Bankston Bankston 161 kV TL 161 kV TL 193 193 93.8 93.8 135.8 135.8 Fayette TS Fayette TS – – Fayette CS 161 kV TL Fayette CS 161 kV TL 193 193 93.8 93.8 135.8 135.8

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SLIDE 27

Significant Constraints Significant Constraints

APC GA ITS

27

MPC Gulf

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SLIDE 28

Plant Gorgas Plant Miller

Berry

(To TVA) (To TVA)

Smith Dam

Bankston

P5

28

West Vernon Plant Gorgas Bankhead Dam Plant Miller

Berry Fayette

Holt Dam

Bankston W Vernon Kingville

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SLIDE 29

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request GS Steel GS Steel – – North Rainbow 115 kV TL North Rainbow 115 kV TL 112 112 81.7 81.7 103.8 103.8

TVA Border to SBA 3500 MW

29

GS Steel GS Steel – – Attalla 115 kV TL Attalla 115 kV TL 138 138 71.5 71.5 106.8 106.8 Leeds TS Leeds TS – – Argo DS 230 kV TL Argo DS 230 kV TL 602 602 75.8 75.8 107.0 107.0 Clay Clay – – Argo DS 230 kV TL Argo DS 230 kV TL 602 602 78.2 78.2 109.5 109.5 Attalla 161 / 115 kV Transformer 1 Attalla 161 / 115 kV Transformer 1 99 99 89.4 89.4 122.9 122.9 Attalla 161 / 115 kV Transformer 2 Attalla 161 / 115 kV Transformer 2 111 111 88.4 88.4 121.4 121.4 Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL 193 193 96.7 96.7 132.9 132.9

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SLIDE 30

Significant Constraints Significant Constraints

APC GA ITS

30

MPC Gulf

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SLIDE 31

Altoona Sand Mtn. Plant Gadsden Weiss Dam Goshen Plant Hammond

GS Steel

Attalla

(To TVA) (To TVA) P6 P23

Lookout Mountain

Clay Oneonta Altoona Plant Gadsden H.N. Henry Dam Anniston

GS Steel Rainbow City

Leeds

Argo

P4 P11

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SLIDE 32

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Tanner Williams Tanner Williams – – Harleston Harleston 115 kV TL 115 kV TL 107 107 80.7 80.7 105.1 105.1

TVA Border to SBA 3500 MW

32

Wade SS Wade SS – – Harleston Harleston 115 kV TL 115 kV TL 104 104 89.3 89.3 114.4 114.4

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SLIDE 33

Significant Constraints Significant Constraints

APC GA ITS

33

MPC Gulf

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SLIDE 34

Plant Barry

P8

Blakeley Island Big Creek Wade Plant Daniel

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SLIDE 35

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P1 P1 Russell Dam Russell Dam – – Athena 230 kV TL Athena 230 kV TL $61,000,000 $61,000,000 P2 P2 Gaston Gaston – – County Line Road 230 kV TL County Line Road 230 kV TL $12,200,000 $12,200,000(2)

(2)

P3 P3 South Hall South Hall – – Winder Primary 230 kV TL Winder Primary 230 kV TL $10,000,000 $10,000,000 P4 P4 Clay TS Clay TS – – Leeds TS 230 kV TL Leeds TS 230 kV TL $18,600,000 $18,600,000

TVA Border to SBA 3500 MW

35

P5 P5 Fayette Fayette – – Gorgas 161 kV TL Gorgas 161 kV TL $29,000,000 $29,000,000 P6 P6 Attalla 161 / 115 kV Transformers Attalla 161 / 115 kV Transformers $18,700,000 $18,700,000(1)

(1)

Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL P7 P7 Sylacauga Sylacauga – – Martin 115 kV TL Martin 115 kV TL $8,300,000 $8,300,000 P8 P8 Wade Wade – – Big Creek 115 kV TL Big Creek 115 kV TL $6,300,000 $6,300,000

  • Continued

Continued -

  • (1)

(1) Cost provided is for the portion of the solution located within

Cost provided is for the portion of the solution located within the participating Transmission Owners’ territory the participating Transmission Owners’ territory

(2) (2) Advancement cost associated with a project in the latest Ten

Advancement cost associated with a project in the latest Ten Year Expansion Plan Year Expansion Plan

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SLIDE 36

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

  • Continued

Continued -

  • P9

P9 Logtown Logtown West West -

  • NASA 115 kV TL

NASA 115 kV TL $2,900,000 $2,900,000 P10 P10 Jesup Jesup – – Ludowici Ludowici 115 kV TL 115 kV TL $250,000 $250,000(2)

(2)

P11 P11 Henry Dam Henry Dam – – Attalla 115 kV TL Attalla 115 kV TL $1,600,000 $1,600,000

TVA Border to SBA 3500 MW

36

P12 P12 Thurlow Thurlow Dam Dam – – Union Springs 115 Union Springs 115 kv kv TL TL $1,100,000 $1,100,000 P13 P13 Kathleen Kathleen – – Bonaire 115 kV TL Bonaire 115 kV TL $1,500,000 $1,500,000 P14 P14 South Park DS South Park DS – – Pratt City 115 kV TL Pratt City 115 kV TL $1,500,000 $1,500,000 P15 P15 Bessemer Bessemer – – South Bessemer 115 kV TL South Bessemer 115 kV TL $100,000 $100,000 P16 P16 Mitchell Dam Mitchell Dam – – North Selma 115 kV TL North Selma 115 kV TL $3,600,000 $3,600,000 P17 P17 Hattiesburg North Hattiesburg North – – Eaton 115 kV TL Eaton 115 kV TL $1,500,000 $1,500,000

  • Continued

Continued -

  • (2)

(2) Advancement cost associated with a project in the latest Ten

Advancement cost associated with a project in the latest Ten Year Expansion Plan Year Expansion Plan

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SLIDE 37

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

  • Continued

Continued -

  • P18

P18 Hattiesburg County Hattiesburg County – – Highway 11 115 kV TL Highway 11 115 kV TL $1,200,000 $1,200,000 P19 P19 East Point East Point – – Morrow 115 kV TL Morrow 115 kV TL $150,000 $150,000(2)

(2)

P20 P20 Blankets Creek Blankets Creek – – Woodstock 115 kV TL Woodstock 115 kV TL $500,000 $500,000

TVA Border to SBA 3500 MW

37

P21 P21 Collins Collins – – Magee 115 kV TL Magee 115 kV TL $3,000,000 $3,000,000(1)

(1)

P22 P22 Morton Morton – – Forest Industrial 115 kV TL Forest Industrial 115 kV TL $1,300,000 $1,300,000 P23 P23 Attalla Attalla – – Lookout Mountain 115 kV TL Lookout Mountain 115 kV TL $1,800,000 $1,800,000

SBA Total Cost (2011$) = $186,200,000 SBA Total Cost (2011$) = $186,200,000

(1) (1) Cost provided is for the portion of the solution located within

Cost provided is for the portion of the solution located within the participating Transmission Owners’ territory the participating Transmission Owners’ territory

(2) (2) Advancement cost associated with a project in the latest Ten

Advancement cost associated with a project in the latest Ten Year Expansion Plan Year Expansion Plan

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SLIDE 38

TVA Border to SBA 3500 MW

PowerSouth PowerSouth

38

Screen Results Screen Results

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SLIDE 39

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Brewton Brewton – – Castleberry Junction 115 kV TL Castleberry Junction 115 kV TL 142 142 84.8 84.8 101.0 101.0

TVA Border to SBA 3500 MW

39

Belleville Belleville – – Castleberry Junction 115 kV TL Castleberry Junction 115 kV TL 142 142 87.5 87.5 103.8 103.8

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SLIDE 40

Belleville Plant McWilliams

P24

N Brewton Castleberry Brewton Flomaton Plant Crist

  • W. Brunswick

Silverhill Shoal River

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SLIDE 41

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P24 P24 Belleville Belleville – – Brewton 115 kV TL Brewton 115 kV TL $3,600,000 $3,600,000

TVA Border to SBA 3500 MW

41

PS Total Cost (2011$) = $3,600,000 PS Total Cost (2011$) = $3,600,000

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SLIDE 42

TVA Border to SBA 3500 MW

South Mississippi Electric South Mississippi Electric

42

Screen Results Screen Results

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SLIDE 43

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Purvis Purvis – – Morrow 161 kV TL 1 Morrow 161 kV TL 1 296 296 58.0 58.0 108.5 108.5

TVA Border to SBA 3500 MW

43

Purvis Purvis – – Morrow 161 kV TL 2 Morrow 161 kV TL 2 296 296 57.5 57.5 108.3 108.3

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SLIDE 44

Laurel East

  • W. Waynesboro

P26

Plant Eaton Hurricane Creek Benndale Plant Morrow Purvis Lumberton

P25

slide-45
SLIDE 45

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P25 P25 Purvis Bulk Purvis Bulk – – Morrow 161 kV TL Circuit 1 Morrow 161 kV TL Circuit 1 $1,900,000 $1,900,000 P26 P26 Purvis Bulk Purvis Bulk – – Morrow 161 kV TL Circuit 2 Morrow 161 kV TL Circuit 2 $1,900,000 $1,900,000

TVA Border to SBA 3500 MW

45

SME Total Cost (2011$) = $3,800,000 SME Total Cost (2011$) = $3,800,000

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SLIDE 46

TVA Border to SBA 3500 MW (80%)

80% of Summer Peak Screen 80% of Summer Peak Screen

An additional screen at 80% of Summer Peak An additional screen at 80% of Summer Peak load was also evaluated per stakeholder load was also evaluated per stakeholder request request

46

No additional constraints were identified No additional constraints were identified A A subset subset of the constraints found in the

  • f the constraints found in the

Summer Peak and Shoulder analysis were Summer Peak and Shoulder analysis were identified. identified.

slide-47
SLIDE 47

Questions on the TVA Questions on the TVA

2011 SERTP

47

Questions on the TVA Questions on the TVA Border to SBA Transfer? Border to SBA Transfer?

slide-48
SLIDE 48

EES Border EES Border to to

48

SBA SBA

1500 MW 1500 MW

slide-49
SLIDE 49

EES Border to SBA 1500 MW

  • Transfer Type:

Transfer Type: Generation to Generation Generation to Generation

  • Source:

Source: New generator interconnecting to the New generator interconnecting to the El Dorado 500 kV substation (EES) near El Dorado 500 kV substation (EES) near El Dorado, AR El Dorado, AR

  • Sink:

Sink: Generation within the SBA Generation within the SBA

49

Source Sink

slide-50
SLIDE 50

3%

26% 28% 19% DUKE 25% APC

0.5%

13% 18.5% GA ITS

0.5%

TVA SMEPA

50 50

Source Sink

1%

6%

1%

APC MPC

1% 1%

Gulf

3%

PSEC GA ITS

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SLIDE 51

EES Border to SBA 1500 MW

Transmission System Impacts Transmission System Impacts

Thermal Constraints Identified: Thermal Constraints Identified:

  • Three (3) 230 kV Lines

Three (3) 230 kV Lines

  • One (1) 230 / 115 kV Transformer

One (1) 230 / 115 kV Transformer

51

  • Two (2) 161 / 115 kV Transformers

Two (2) 161 / 115 kV Transformers

  • Two (2) 161 kV Lines

Two (2) 161 kV Lines

  • Twelve (12) 115 kV Lines

Twelve (12) 115 kV Lines

Total Cost (2011$) = $197,650,000 Total Cost (2011$) = $197,650,000

slide-52
SLIDE 52

EES Border to SBA 1500 MW

Southern Balancing Southern Balancing Authority Authority

52

Screen Results Screen Results

slide-53
SLIDE 53

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Lexington Lexington – – East Watkinsville 230 kV TL East Watkinsville 230 kV TL 602 602 93.7 93.7 102.5 102.5

EES Border to SBA 1500 MW

53

Bio Bio – – Vanna Vanna 230 kV TL 230 kV TL 433 433 96.2 96.2 104.5 104.5 Russell Russell – – Lexington 230 kV TL Lexington 230 kV TL 596 596 98.0 98.0 107.0 107.0

slide-54
SLIDE 54

Significant Constraints Significant Constraints

APC GA ITS

54

MPC Gulf

slide-55
SLIDE 55

Bio

(To DUKE)

Middlefork Hartwell Energy Hartwell Dam

(To DUKE)

Vanna Center Lexington Russell Dam

(To SCPSA)

S Hall Athena Plant Dahlberg

  • E. Watkinsville

Winder

P1

slide-56
SLIDE 56

Significant Constraints Significant Constraints – – PASS 1 PASS 1

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request LSA Tap LSA Tap – – GDC Tap 115 kV TL GDC Tap 115 kV TL 112 112 86.4 86.4 100.2 100.2

EES Border to SBA 1500 MW

56

Fulton Fulton – – Jackson Tap B 115 kV TL Jackson Tap B 115 kV TL 138 138 88.9 88.9 103.8 103.8 Jackson Tap B Jackson Tap B – – Lowman Tap B 115 kV TL Lowman Tap B 115 kV TL 138 138 88.9 88.9 103.8 103.8 Fulton Fulton – – GDC Tap 115 kV TL GDC Tap 115 kV TL 112 112 92.1 92.1 105.9 105.9 Fulton Fulton – – Jackson Tap A 115 kV TL Jackson Tap A 115 kV TL 112 112 92.6 92.6 109.3 109.3 Lowman Tap A Lowman Tap A -

  • McIntosh 115 kV TL

McIntosh 115 kV TL 112 112 92.7 92.7 109.4 109.4

slide-57
SLIDE 57

Significant Constraints Significant Constraints

APC GA ITS

57

MPC Gulf

slide-58
SLIDE 58

P2

Fulton Jackson McIntosh

slide-59
SLIDE 59

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Attalla 161 / 115 kV Transformer 1 Attalla 161 / 115 kV Transformer 1 111 111 88.4 88.4 106.9 106.9

EES Border to SBA 1500 MW

59

Attalla 161 / 115 kV Transformer 2 Attalla 161 / 115 kV Transformer 2 99 99 88.4 88.4 108.2 108.2 Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL 193 193 96.7 96.7 117.0 117.0

slide-60
SLIDE 60

Significant Constraints Significant Constraints

APC GA ITS

60

MPC Gulf

slide-61
SLIDE 61

Altoona Sand Mtn. Plant Gadsden Weiss Dam Goshen Plant Hammond

GS Steel

Attalla

(To TVA) (To TVA) P4

Clay Oneonta H.N. Henry Dam Anniston

GS Steel Rainbow City

slide-62
SLIDE 62

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Oakman Oakman Tap Tap – – Gorgas 161 kV TL Gorgas 161 kV TL 193 193 80.7 80.7 116.0 116.0

EES Border to SBA 1500 MW

62

Oakman Oakman Tap Tap – – Berry 161 kV TL Berry 161 kV TL 193 193 81.2 81.2 116.4 116.4 Berry Berry – – Pitts &Midway Tap 161 kV TL Pitts &Midway Tap 161 kV TL 193 193 83.4 83.4 118.6 118.6 Bankston Bankston – – Pitts & Midway Tap kV TL Pitts & Midway Tap kV TL 193 193 92.0 92.0 127.3 127.3 Fayette CS Fayette CS – – Bankston Bankston 161 kV TL 161 kV TL 193 193 93.8 93.8 129.1 129.1 Fayette TS Fayette TS – – Fayette TS 161 kV TL Fayette TS 161 kV TL 193 193 93.8 93.8 129.1 129.1

slide-63
SLIDE 63

Significant Constraints Significant Constraints

APC GA ITS

63

MPC Gulf

slide-64
SLIDE 64

Berry

(To TVA) (To TVA)

Smith Dam

Bankston

P12

West Vernon Plant Gorgas Bankhead Dam Plant Miller

Berry Fayette

Holt Dam

Bankston W Vernon Kingville

slide-65
SLIDE 65

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Sylacauga Sylacauga – – Hollins Hollins 115 kV 115 kV 113 113 104.6 104.6(1)

(1)

118.0 118.0

EES Border to SBA 1500 MW

65

Hollins Hollins – – Sunny Level Tap 115 kV Sunny Level Tap 115 kV 113 113 99.4 99.4 113.1 113.1 Sunny Level Tap Sunny Level Tap – – Kellyton Kellyton 115 kV 115 kV 113 113 93.2 93.2 106.9 106.9 Kellyton Kellyton – – Alexander City Tap 115 kV Alexander City Tap 115 kV 113 113 91.3 91.3 105.0 105.0

(1) (1) A current operating procedure is sufficient to alleviate this constraint without the

A current operating procedure is sufficient to alleviate this constraint without the addition of the proposed transfer. However, the additional transfer exacerbates the addition of the proposed transfer. However, the additional transfer exacerbates the loading on this facility such that the operating procedure becomes insufficient. loading on this facility such that the operating procedure becomes insufficient.

slide-66
SLIDE 66

Significant Constraints Significant Constraints

APC GA ITS

66

MPC Gulf

slide-67
SLIDE 67

Plant Gaston

Hollins

Lay Dam Mitchell Dam

Sylacauga Hillabee Kellyton

Harris Dam

Alexander City Tap

P10

Autaugaville Plant Franklin Bouldin Dam Jordan Dam Thurlow Dam Yates Dam Martin Dam Billingsly Snowdoun County Line Rd.

slide-68
SLIDE 68

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Opp Opp – – S. Enterprise 230 kV TL

  • S. Enterprise 230 kV TL

498 498 96.7 96.7 104.8 104.8

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

EES Border to SBA 1500 MW

  • S. Enterprise XFMR 230/115 kV
  • S. Enterprise XFMR 230/115 kV

250 250 96.1 96.1 106.9 106.9

68

slide-69
SLIDE 69

Significant Constraints Significant Constraints

APC GA ITS

69

MPC Gulf

slide-70
SLIDE 70

P9

Pinckard Webb

  • S. Enterprise
slide-71
SLIDE 71

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Spanish Fort Spanish Fort – – Belforest Belforest 115 kV 115 kV 212 212 96.9 96.9 102.8 102.8

EES Border to SBA 1500 MW

71

Barry Barry – – Stockton 115 kV Stockton 115 kV 212 212 97.7 97.7 103.1 103.1 Wade Wade – – Harleston Harleston 115 kV 115 kV 104 104 87.5 87.5 105.7 105.7

slide-72
SLIDE 72

Significant Constraints Significant Constraints

APC GA ITS

72

APC MPC Gulf

slide-73
SLIDE 73

P6

Plant Barry

P11 P5

Blakeley Island Big Creek Wade Plant Daniel

slide-74
SLIDE 74

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P1 P1 Russell Dam Russell Dam – – Athena 230 kV TL Athena 230 kV TL $61,000,000 $61,000,000 P2 P2 Fulton Area Improvements Fulton Area Improvements $27,600,000 $27,600,000 P3 P3 Jesup Jesup – – Ludowici Ludowici 115 kV TL 115 kV TL $250,000 $250,000(2)

(2)

P4 P4 Attalla 161 / 115 kV Transformers Attalla 161 / 115 kV Transformers $18,700,000 $18,700,000(1)

(1)

EES Border to SBA 1500 MW

74

Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL P5 P5 Blakeley Island Blakeley Island -

  • Silverhill

Silverhill 115 kV TL 115 kV TL $11,100,000 $11,100,000 P6 P6 Barry Barry -

  • Atmore 115 kV TL

Atmore 115 kV TL $6,300,000 $6,300,000 P7 P7 Logtown Logtown West West -

  • NASA 115 kV TL

NASA 115 kV TL $1,100,000 $1,100,000 P8 P8 Morton Morton – – Forest Industrial 115 kV TL Forest Industrial 115 kV TL $1,400,000 $1,400,000(1)

(1)

P9 P9 South Enterprise South Enterprise – – Opp Opp 230 kV TL 230 kV TL $22,100,000 $22,100,000

  • Continued

Continued -

  • (1)

(1) Cost provided is for the portion of the solution located within the

Cost provided is for the portion of the solution located within the participating Transmission Owners’ territory participating Transmission Owners’ territory

(2) (2) Advancement cost associated with a project currently in the latest Ten Year

Advancement cost associated with a project currently in the latest Ten Year Expansion Plan Expansion Plan

slide-75
SLIDE 75

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

  • Continued

Continued -

  • P10

P10 Sylacauga Sylacauga – – Martin 115 kV TL Martin 115 kV TL $8,300,000 $8,300,000 P11 P11 Wade Wade – – Big Creek 115 kV TL Big Creek 115 kV TL $6,300,000 $6,300,000 P12 P12 Fayette Fayette – – Gorgas 161 kV TL Gorgas 161 kV TL $29,000,000 $29,000,000

EES Border to SBA 1500 MW

75

P13 P13 Collins Collins – – McGee 115 kV TL McGee 115 kV TL $3,000,000 $3,000,000(1)

(1)

SBA Total Cost (2011$) = $196,150,000 SBA Total Cost (2011$) = $196,150,000

(1) (1) Cost provided is for the portion of the solution located within the

Cost provided is for the portion of the solution located within the participating Transmission Owners’ territory participating Transmission Owners’ territory

slide-76
SLIDE 76

EES Border to SBA 1500 MW

PowerSouth PowerSouth

76

Screen Results Screen Results

slide-77
SLIDE 77

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Clayhatchee Clayhatchee – – Dale County 115 kV TL Dale County 115 kV TL 157 157 83.0 83.0 105.0 105.0

EES Border to SBA 1500 MW

77

slide-78
SLIDE 78

Headland

P14

Dale County Pinckard Plant Farley Clayhatchee Blakeley Plant Scholz Holmes Creek

slide-79
SLIDE 79

Projects Identified Projects Identified

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P24 P24 Clayhatchee Clayhatchee – – Dale County 115 kV TL Dale County 115 kV TL $1,500,000 $1,500,000

EES Border to SBA 1500 MW

79

PS Total Cost (2011$) = $1,500,000 PS Total Cost (2011$) = $1,500,000

slide-80
SLIDE 80

EES Border to SBA 1500 MW (80%)

80% of Summer Peak Screen 80% of Summer Peak Screen

An additional screen at 80% of Summer Peak An additional screen at 80% of Summer Peak load was also evaluated per stakeholder load was also evaluated per stakeholder request request

80

No additional constraints were identified No additional constraints were identified A A subset subset of the constraints found in the

  • f the constraints found in the

Summer Peak and Shoulder analysis were Summer Peak and Shoulder analysis were identified. identified.

slide-81
SLIDE 81

Questions on the EES Questions on the EES

2011 SERTP

81

Questions on the EES Questions on the EES Border to SBA Transfer? Border to SBA Transfer?

slide-82
SLIDE 82

SCPSA Border SCPSA Border to to

82

SBA SBA

1000 MW 1000 MW

slide-83
SLIDE 83

SCPSA Border to SBA 1000 MW

  • Transfer Type:

Transfer Type: Load to Generation Load to Generation

  • Source:

Source: Uniform load reduction in SCPSA Uniform load reduction in SCPSA

  • Sink:

Sink: Generation within the SBA Generation within the SBA

83

Source Sink

slide-84
SLIDE 84

0.5%

12%

4.5% 2.5%

DUKE 8% SMEPA APC

0.5%

14.5% 75% GA ITS

1%

TVA

84 84

Source Sink

2.5% 1% 3% 1%

APC MPC

0% 0.5%

Gulf

0.5%

PSEC GA ITS

slide-85
SLIDE 85

SPCSA Border to SBA 1000 MW

Transmission System Impacts Transmission System Impacts

Thermal Constraints Identified: Thermal Constraints Identified:

  • Two (2) 230 kV Lines

Two (2) 230 kV Lines

  • Two (2) 161 / 115 kV Transformers

Two (2) 161 / 115 kV Transformers

85

  • Two (2) 161 kV Lines

Two (2) 161 kV Lines

  • Eight (8) 115 kV Lines

Eight (8) 115 kV Lines

Total Cost (2011$) = $95,260,000 Total Cost (2011$) = $95,260,000

slide-86
SLIDE 86

SCPSA Border to SBA 1000 MW

Southern Balancing Southern Balancing Authority Authority

86

Screen Results Screen Results

slide-87
SLIDE 87

Significant Constraints Significant Constraints – – PASS 0 PASS 0

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Lexington Lexington – – East Watkinsville 230 kV TL East Watkinsville 230 kV TL 602 602 93.7 93.7 103.3 103.3

SCPSA Border to SBA 1000 MW

87

Bio Bio – – Vanna Vanna 230 kV TL 230 kV TL 433 433 96.2 96.2 104.0 104.0 Russell Russell – – Lexington 230 kV TL Lexington 230 kV TL 596 596 98.0 98.0 107.8 107.8

slide-88
SLIDE 88

Significant Constraints Significant Constraints

APC GA ITS

88

MPC Gulf

slide-89
SLIDE 89

Bio

(To DUKE)

Middlefork Hartwell Energy Hartwell Dam

(To DUKE)

Bio Vanna Center Lexington Russell Dam

(To SCPSA)

S Hall Athena Plant Dahlberg

  • E. Watkinsville

Winder

P1

slide-90
SLIDE 90

Significant Constraints Significant Constraints – – PASS 1 PASS 1

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Daniel Siding Daniel Siding – – Rich Hill Tap 115 kV TL Rich Hill Tap 115 kV TL 255 255 95.8 95.8 102.1 102.1

SCPSA Border to SBA 1000 MW

90

Rich Hill Tap Rich Hill Tap – – Little Ogeechee 115 kV TL Little Ogeechee 115 kV TL 255 255 105.2 105.2(1)

(1)

111.5 111.5 Horse Creek Horse Creek – – Elam Chapel 115 kV TL Elam Chapel 115 kV TL 155 155 88.2 88.2 102.3 102.3 Zuta Zuta – – Townsend 115 kV TL Townsend 115 kV TL 114 114 87.1 87.1 101.4 101.4 Jesup Jesup – – North North Jesup Jesup 115 kV TL 115 kV TL 124 124 87.7 87.7 106.0 106.0 North North Jesup Jesup – – Rayonier 115 kV TL Rayonier 115 kV TL 124 124 98.6 98.6 116.6 116.6

(1) (1) A current operating procedure is sufficient to alleviate this constraint without the

A current operating procedure is sufficient to alleviate this constraint without the addition of the proposed transfer. However, the additional transfer exacerbates the addition of the proposed transfer. However, the additional transfer exacerbates the loading on this facility such that the operating procedure becomes insufficient. loading on this facility such that the operating procedure becomes insufficient.

slide-91
SLIDE 91

Significant Constraints Significant Constraints

APC GA ITS

91

MPC Gulf

slide-92
SLIDE 92

Plant Hatch Plant Kraft Boulevard Little Ogeechee Vidalia Daniel Siding Plant McIntosh (To SCEG) (To SCPSA) Effingham

P8 P7

Thalmann Offerman Jesup Ludowici Horse Creek Plant McManus Dorchester

  • W. Brunswick

Zuta Townsend

P9 P5

slide-93
SLIDE 93

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Attalla 161 / 115 kV Transformer 1 Attalla 161 / 115 kV Transformer 1 111 111 88.4 88.4 100.4 100.4

SCPSA Border to SBA 1000 MW

93

Attalla 161 / 115 kV Transformer 2 Attalla 161 / 115 kV Transformer 2 99 99 88.4 88.4 101.6 101.6 Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL 193 193 96.7 96.7 109.9 109.9

slide-94
SLIDE 94

Significant Constraints Significant Constraints

APC GA ITS

94

MPC Gulf

slide-95
SLIDE 95

Altoona Sand Mtn. Plant Gadsden Weiss Dam Goshen Plant Hammond

GS Steel

Attalla

(To TVA) (To TVA) P10

Clay Oneonta Altoona Plant Gadsden H.N. Henry Dam Anniston

GS Steel Rainbow City

slide-96
SLIDE 96

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Fayette CS Fayette CS – – Bankston Bankston 161 kV TL 161 kV TL 193 193 93.8 93.8 101.3 101.3

SCPSA Border to SBA 1000 MW

96

Fayette TS Fayette TS – – Fayette TS 161 kV TL Fayette TS 161 kV TL 193 193 93.8 93.8 101.4 101.4

slide-97
SLIDE 97

Significant Constraints Significant Constraints

APC GA ITS

97

MPC Gulf

slide-98
SLIDE 98

Plant Gorgas Plant Miller

Berry

(To TVA) (To TVA)

Smith Dam

Bankston

P4

West Vernon Plant Gorgas Bankhead Dam Plant Miller

Berry Fayette

Holt Dam

Bankston W Vernon Kingville

slide-99
SLIDE 99

Significant Constraints Significant Constraints – – PASS 1 (Cont.) PASS 1 (Cont.)

Thermal Loading (%) Thermal Loading (%) Limiting Elements Limiting Elements Rating Rating (MVA) (MVA) Without Without Request Request With With Request Request Sylacauga Sylacauga – – Hollins Hollins 115 kV 115 kV 113 113 104.6 104.6(1)

(1)

111.4 111.4

SCPSA Border to SBA 1000 MW

99

Hollins Hollins – – Sunny Level Tap 115 kV Sunny Level Tap 115 kV 113 113 99.8 99.8 106.5 106.5 Sunny Level Tap Sunny Level Tap – – Kellyton Kellyton 115 kV 115 kV 113 113 93.5 93.5 100.3 100.3

(1) (1) A current operating procedure is sufficient to alleviate this constraint without the

A current operating procedure is sufficient to alleviate this constraint without the addition of the proposed transfer. However, the additional transfer exacerbates the addition of the proposed transfer. However, the additional transfer exacerbates the loading on this facility such that the operating procedure becomes insufficient. loading on this facility such that the operating procedure becomes insufficient.

slide-100
SLIDE 100

Significant Constraints Significant Constraints

APC GA ITS

100

MPC Gulf

slide-101
SLIDE 101

Plant Gaston

Hollins

Lay Dam Mitchell Dam

Sylacauga Hillabee Kellyton

Harris Dam

Alexander City Tap

P2

Autaugaville Plant Franklin Bouldin Dam Jordan Dam Thurlow Dam Yates Dam Martin Dam Billingsly Snowdoun County Line Rd.

slide-102
SLIDE 102

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

P1 P1 Russell Dam Russell Dam – – Athena 230 kV TL Athena 230 kV TL $61,000,000 $61,000,000 P2 P2 Sylacauga Sylacauga – – Martin 115 kV TL Martin 115 kV TL $8,300,000 $8,300,000 P3 P3 Wade Substation Wade Substation $50,000 $50,000 P4 P4 Fayette Fayette – – Gorgas 161 kV TL Gorgas 161 kV TL $4,800,000 $4,800,000

Projects Identified Projects Identified

SCPSA Border to SBA 1000 MW

P5 P5 Zuta Zuta Substation Substation $10,000 $10,000(2)

(2)

P6 P6 Kathleen Kathleen – – Bonaire 115 kV TL Bonaire 115 kV TL $1,500,000 $1,500,000 P7 P7 Daniel Siding Daniel Siding – – Little Ogeechee 115 kV TL Little Ogeechee 115 kV TL $400,000 $400,000(2)

(2)

P8 P8 Hinesville Hinesville – – Ludowici Ludowici 115 kV TL 115 kV TL $250,000 $250,000(2)

(2)

P9 P9 Jesup Jesup – – Ludowici Ludowici 115 kV TL 115 kV TL $250,000 $250,000(2)

(2)

  • Continued

Continued -

  • 102

(2) (2) Advancement cost associated with a project currently in the latest Ten Year

Advancement cost associated with a project currently in the latest Ten Year Expansion Plan Expansion Plan

slide-103
SLIDE 103

Item Item Proposed Enhancements Proposed Enhancements Cost ($) Cost ($)

  • Continued

Continued -

  • P10

P10 Attalla 161 / 115 kV Transformers Attalla 161 / 115 kV Transformers $18,700,000 $18,700,000(1)

(1)

Attalla Attalla – – Albertville 161 kV TL Albertville 161 kV TL

Projects Identified Projects Identified

SCPSA Border to SBA 1000 MW

(1) (1) Cost provided is for the portion of the solution located within the

Cost provided is for the portion of the solution located within the

103

SBA Total Cost (2011$) = $95,260,000 SBA Total Cost (2011$) = $95,260,000

Cost provided is for the portion of the solution located within the Cost provided is for the portion of the solution located within the participating Transmission Owners’ territory participating Transmission Owners’ territory

slide-104
SLIDE 104

Questions on the SCPSA Questions on the SCPSA

2011 SERTP

104

Questions on the SCPSA Questions on the SCPSA Border to SBA Transfer? Border to SBA Transfer?

slide-105
SLIDE 105

FRCC Coordination FRCC Coordination

2011 SERTP

105

FRCC Coordination FRCC Coordination Update Update

slide-106
SLIDE 106

2011 SERTP

FRCC Coordination Update FRCC Coordination Update

  • Exchanged the latest transmission models for

Exchanged the latest transmission models for the ten year planning horizon the ten year planning horizon

  • Models will be incorporated into subsequent

Models will be incorporated into subsequent

106 106 106

base cases base cases

slide-107
SLIDE 107

2011 SERTP

107

SIRPP Update SIRPP Update

slide-108
SLIDE 108

The Five Economic Planning Studies The Five Economic Planning Studies

SCE&G to AEP (200 MW) SCE&G to AEP (200 MW)

  • Study Year: 2017

Study Year: 2017

Southern Co. to Progress Energy Carolinas (50 MW) Southern Co. to Progress Energy Carolinas (50 MW)

  • Study Year: 2017

Study Year: 2017

2011 – 2012 SIRPP Update

108

SCRTP to FRCC (200 MW) SCRTP to FRCC (200 MW)

  • Study Year: 2017

Study Year: 2017

LGE & KU to Southern Co. (200 MW) LGE & KU to Southern Co. (200 MW)

  • Study Year: 2013

Study Year: 2013

Southern Co. to LGE & KU (200 MW) Southern Co. to LGE & KU (200 MW)

  • Study Year: 2013

Study Year: 2013

slide-109
SLIDE 109

2010 – 2011 SIRPP Update

More detailed information concerning these More detailed information concerning these studies is available on the Southeast Inter studies is available on the Southeast Inter- Regional Participation Process website at the Regional Participation Process website at the following link: following link:

109 109 109

  • http://www.southeastirpp.com/

http://www.southeastirpp.com/ 2nd

nd Inter

Inter-regional Stakeholder Meeting regional Stakeholder Meeting

  • April / May of 2012.

April / May of 2012.

slide-110
SLIDE 110

2011 SERTP 2011 SERTP 2011 Modeling 2011 Modeling Assumptions Assumptions

slide-111
SLIDE 111

58000 60000 62000 64000 ad (MW) SERTP Sponsor Load Forecast 2009, 2010, and 2011 Series Base Cases (Southern + GTC + MEAG + PowerSouth + SMEPA)

2011 Load Forecast 2011 Load Forecast

46000 48000 50000 52000 54000 56000 58000 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 SERTP Projected Load

2009 2011 2010

slide-112
SLIDE 112

Wansley Rocky Mtn Vogtle McDonough Dahlberg Hancock CC Central AL Franklin CC

2011 Regional Generation 2011 Regional Generation Assumptions Assumptions

Piedmont Bio Loopers Farm Conasauga Tenaska Kemper Farley SOWEGA Central AL McIntosh Harris CC

Existing Generation Future Generation

Warthen CT Lee Road Moselle Baconton East Bainbridge

slide-113
SLIDE 113

Year Year Site Site MW MW GTC GTC McDonough 1 Coal McDonough 1 Coal

  • 49

49 Conasauga Conasauga 630 630 Loopers Loopers Farm Farm 206 206

Generation Assumptions for the Generation Assumptions for the 2011 Transmission Expansion Planning 2011 Transmission Expansion Planning Process Process

2011 SERTP 2011 SERTP

Year Year Site Site MW MW GTC GTC Dahlberg CT Dahlberg CT

  • 100

100 Dynergy Dynergy Heard Heard CTs CTs

  • 100

100 East Bainbridge East Bainbridge

  • 72

72 Loopers Loopers Farm Farm 146 146 Franklin 3 Franklin 3

  • 280

280 2012 2012 Loopers Loopers Farm Farm 206 206 Wansley Wansley CC7 CC7 152 152 SMEPA SMEPA Moselle Moselle 150 150 SoCo SoCo Conasauga Conasauga

  • 630

630 Farley 2 Farley 2 Uprate Uprate 35 35 McDonough 1 Coal McDonough 1 Coal

  • 202

202 McDonough CC4 McDonough CC4 841 841 McDonough CC5 McDonough CC5 841 841 Piedmont Bio Piedmont Bio 50 50 2011 2011 Franklin 3 Franklin 3

  • 280

280 McDonough 2 Coal McDonough 2 Coal

  • 51

51 Rocky Mountain Rocky Mountain 44 44 Wansley Wansley CC7 CC7

  • 152

152 Warthen Warthen CT CT 600 600 MEAG MEAG Crisp Co Hydro Crisp Co Hydro

  • 20

20 Calhoun Calhoun Cogen Cogen

  • 20

20 PS PS McIntosh 4 & 5 McIntosh 4 & 5 448 448 SoCo SoCo Farley 1 Farley 1 Uprate Uprate 35 35 Franklin 2 Franklin 2

  • 625

625 McDonough 2 Coal McDonough 2 Coal

  • 200

200

slide-114
SLIDE 114

Generation Assumptions for the 2011 Transmission Generation Assumptions for the 2011 Transmission Expansion Planning Process Expansion Planning Process

2011 SERTP 2011 SERTP

Year Year Site Site MW MW 2014 2014 GTC GTC Dahlberg CT Dahlberg CT 75 75 SOWEGA SOWEGA 90 90 SoCo SoCo Baconton Baconton CT CT

  • 197

197 Year Year Site Site MW MW GTC GTC East Bainbridge East Bainbridge 78 78 Lee Road CT Lee Road CT 100 100 Loopers Loopers Farm Farm 268 268 2014 2014 SoCo SoCo Baconton Baconton CT CT

  • 197

197 Dahlberg CT Dahlberg CT

  • 292

292 Kemper IGCC Kemper IGCC 600 600 2013 2013 Loopers Loopers Farm Farm 268 268 Franklin 2 Franklin 2 625 625 MEAG MEAG Vogtle Vogtle 1 44 44 SoCo SoCo Central Alabama Central Alabama CC CC 885 885 McDonough CC6 McDonough CC6 841 841 Vogtle Vogtle 1

  • 44

44

slide-115
SLIDE 115

Generation Assumptions for the 2011 Transmission Expansion Planning Process

2011 SERTP 2011 SERTP

Year Year Site Site MW MW 2015 2015 GTC GTC Dahlberg CT Dahlberg CT 187 187 Franklin 3 Franklin 3 280 280 Santa Rosa Santa Rosa

  • 225

225 Year Year Site Site MW MW GTC GTC Branch Branch

  • 45

45 Gaston 1&2 Gaston 1&2

  • 52

52 Hammond 2 Hammond 2

  • 11

11 Santa Rosa Santa Rosa

  • 225

225 SOWEGA SOWEGA

  • 90

90 2015 2015 (cont.) (cont.) Hammond 2 Hammond 2

  • 11

11 McManus CT McManus CT

  • 17

17 Mitchell Mitchell

  • 25

25 Scherer 3 Scherer 3

  • 62

62 Wilson 5 CT Wilson 5 CT

  • 21

21 Yates Yates

  • 122

122 MEAG MEAG Vogtle Vogtle 2 44 44 SoCo SoCo Vogtle Vogtle 2

  • 44

44

slide-116
SLIDE 116

Generation Assumptions for the 2011 Transmission Expansion Planning Process

2011 SERTP 2011 SERTP

Year Year Site Site MW MW 2017 2017 Dalton Dalton Vogtle Vogtle 4 16 16 GTC GTC Vogtle Vogtle 4 330 330 Wansley Wansley CC6 CC6 561 561 Year Year Site Site MW MW 2016 2016 Dalton Dalton Vogtle 3 Vogtle 3 16 16 GTC GTC Dahlberg CT Dahlberg CT 113 113 Vogtle Vogtle 3 330 330 2017 2017 MEAG MEAG Vogtle Vogtle 4 250 250 SoCo SoCo Vogtle Vogtle 4 504 504 Wansley Wansley CC6 CC6

  • 561

561 2016 2016 Warthen Warthen CT CT

  • 280

280 MEAG MEAG Vogtle Vogtle 3 250 250 SoCo SoCo Vogtle Vogtle 3 504 504

slide-117
SLIDE 117

Generation Assumptions for the 2011 Transmission Expansion Planning Process

2011 SERTP 2011 SERTP

Year Year Site Site MW MW 2018 2018 N/A N/A Year Year Site Site MW MW Year Year Site Site MW MW 2020 2020 N/A N/A Year Year Site Site MW MW 2021 2021 SoCo SoCo Hancock CC1 Hancock CC1 940 940 Year Year Site Site MW MW 2019 2019 PS PS McIntosh 6 McIntosh 6 187 187 SoCo SoCo Harris 2 Harris 2

  • 628

628

slide-118
SLIDE 118

Generation Assumptions for the 2011 Transmission Generation Assumptions for the 2011 Transmission Expansion Planning Process Expansion Planning Process

2011 SERTP 2011 SERTP

Starting in Starting in Year Year Site Site MW MW 2012 2012 PTP PTP Dahlberg Dahlberg 255 255 2012 2012 Franklin Franklin 535 535 Year Year Site Site MW MW 2012 2012 – 2014 2014 PTP PTP Scherer 3 Scherer 3 42 42 2012 2012 – 2014 2014 Miller Miller 164 164 PTPs preserved through the planning horizon PTPs preserved through the planning horizon PTPs ending within the planning horizon PTPs ending within the planning horizon 2012 2012 Harris 1 Harris 1 584 584 2012 2012 Hillabee Hillabee 700 700 2012 2012 Lindsay Hill Lindsay Hill 500 500 2012 2012 Scherer 3 Scherer 3 235 235 2012 2012 Scherer 4 Scherer 4 850 850 2015 2015 Vogtle Vogtle 103 103 2016 2016 Vogtle Vogtle 103 103 2015** 2015** Miller Miller 103 103

**Point to Point is assumed for the stated year only

slide-119
SLIDE 119

2011 SERTP 2011 SERTP Ten Year Expansion Plan Ten Year Expansion Plan

slide-120
SLIDE 120

Base cases updated Base cases updated with most recent with most recent input assumptions. input assumptions. Assess need for Assess need for additional new projects. additional new projects. Approximate target for Approximate target for completion of year 1 completion of year 1 – 5 5 evaluation. evaluation. Discuss the preliminary Discuss the preliminary expansion plan with the expansion plan with the SERTP Stakeholders and SERTP Stakeholders and

Approximate Time Line for Area Planning Approximate Time Line for Area Planning (Years 1 (Years 1 – – 5) 5)

10 Year Expansion Plan 10 Year Expansion Plan

May Jan Feb Mar Apr Jun

Begin re Begin re-evaluation of evaluation of existing projects for timing existing projects for timing and need. and need. SERTP Stakeholders and SERTP Stakeholders and

  • btain input.
  • btain input.

Coordination among SERTP Sponsors and Coordination among SERTP Sponsors and SERC members. SERC members.

slide-121
SLIDE 121

Base cases updated with Base cases updated with most recent data. most recent data. Assess need for additional Assess need for additional Approximate target for Approximate target for completion of year 6 completion of year 6 – 10 10 evaluation. evaluation. Discuss 10 year Discuss 10 year expansion plan at expansion plan at the Summit. the Summit. Base cases updated with Base cases updated with most recent data and most recent data and

Approximate Time Line for Area Planning Approximate Time Line for Area Planning (Years 6 (Years 6 – – 10) 10)

10 Year Expansion Plan 10 Year Expansion Plan

Aug Jun July Sep

Assess need for additional Assess need for additional new projects. new projects. Coordination among SERTP Sponsors Coordination among SERTP Sponsors and SERC members. and SERC members.

Oct Nov Dec

Obtain input from Obtain input from stakeholders on stakeholders on assumptions for next assumptions for next year’s expansion plan year’s expansion plan process. process. Discuss previous or obtain Discuss previous or obtain additional SERTP stakeholder additional SERTP stakeholder input on expansion plan. input on expansion plan. most recent data and most recent data and begin reviewing 10 year begin reviewing 10 year expansion plan. expansion plan. Begin re Begin re-evaluation of evaluation of existing projects for timing existing projects for timing and need. and need.

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SLIDE 122

The expansion plan is periodically reviewed and The expansion plan is periodically reviewed and may be revised due to changes in may be revised due to changes in assumptions. assumptions. This presentation does not represent a This presentation does not represent a commitment to build for projects listed in the commitment to build for projects listed in the

2011 SERTP 2011 SERTP

commitment to build for projects listed in the commitment to build for projects listed in the future. future. The in The in-service date of each project is June 1 service date of each project is June 1st

st of

  • f

the stated project year, unless otherwise specified. the stated project year, unless otherwise specified. The need date of each project is the same as the The need date of each project is the same as the in in-service date, unless otherwise specified. service date, unless otherwise specified.

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SLIDE 123

2011 SERTP 2011 SERTP East East West West

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SLIDE 124

2011 SERTP 2011 SERTP Order 1000 Order 1000

Implementation Process & Implementation Process & Potential Timeline Potential Timeline

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SLIDE 125

Order 1000

On On July 21, 2011 July 21, 2011, FERC issued Order 1000 on , FERC issued Order 1000 on “Transmission Planning and Cost Allocation by “Transmission Planning and Cost Allocation by Transmission Owning and Operating Public Utilities” Transmission Owning and Operating Public Utilities” The effective date of the Order is The effective date of the Order is October 11, 2011 October 11, 2011 Each public utility transmission provider must submit a Each public utility transmission provider must submit a compliance filing by compliance filing by October 11, 2012 October 11, 2012

125 125 125

compliance filing by compliance filing by October 11, 2012 October 11, 2012 A compliance filing for the requirements set forth with A compliance filing for the requirements set forth with respect to interregional transmission coordination respect to interregional transmission coordination procedures and an interregional cost allocation method procedures and an interregional cost allocation method

  • r methods must be submitted by
  • r methods must be submitted by April 11, 2013

April 11, 2013

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SLIDE 126

Order 1000 Implementation Process & Timeline

  • The “Interim Meetings” shown are tentative. The actual meeting

The “Interim Meetings” shown are tentative. The actual meeting frequency will be dependent on need and stakeholder feedback. frequency will be dependent on need and stakeholder feedback.

SERTP 1st Qtr Mtg:

  • Discuss Order 1000

requirements

  • Share “strawman” for

discussion purposes

SERTP 2nd Qtr Mtg:

  • Continue to discuss

Order 1000 requirements

  • Discuss and revise

latest proposal

SERTP 3rd Qtr Mtg:

  • Review Order 1000 Final

Proposal

  • Share interregional

“strawman” for discussion purposes

126 126 126 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

October 11th, 2012:

  • Compliance Filing on

Regional Requirements

Interim Meeting:

  • Conference Call and/or

Face-to-Face

  • Discuss latest

“strawman”

Interim Meeting:

  • Conference Call and/or

Face-to-Face

  • Discuss latest proposal

Interim Meeting:

  • Conference Call and/or

Face-to-Face

  • Discuss “strawman”

revisions

  • Discuss requirements and

resulting additions to “strawman”

2012

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SLIDE 127

April 11th, 2013:

  • Compliance Filing on

Interregional Requirements

SERTP 4th Qtr Mtg:

  • Discuss latest proposal

SERTP 1st Qtr Mtg:

  • Review Order 1000 Final

Proposal with respect to interregional requirements

Order 1000 Implementation Process & Timeline

  • The “Interim Meetings” shown are tentative. The actual meeting

The “Interim Meetings” shown are tentative. The actual meeting frequency will be dependent on need and stakeholder feedback. frequency will be dependent on need and stakeholder feedback.

127 127 127 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Interim Meeting:

  • Conference Call and/or

Face-to-Face

  • Discuss requirements and

resulting additions to “strawman”

  • Discuss “strawman”

revisions

Interim Meeting:

  • Conference Call and/or

Face-to-Face

  • Discuss latest proposal

2013

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SLIDE 128

Order 1000

Order 1000 Order 1000 – Implementation Process & Timeline Implementation Process & Timeline

  • “Strawmen

Strawmen”/Proposals associated with the Order 1000 ”/Proposals associated with the Order 1000 requirements will be made available to stakeholders requirements will be made available to stakeholders prior to all SERTP meetings (including ad hoc prior to all SERTP meetings (including ad hoc meetings) meetings) Stakeholders can submit questions or comments at Stakeholders can submit questions or comments at

128 128 128

  • Stakeholders can submit questions or comments at

Stakeholders can submit questions or comments at anytime throughout the process anytime throughout the process

  • www.southeasternrtp.com/contactus.asp

www.southeasternrtp.com/contactus.asp

  • In

In-person / Conference person / Conference-call meetings call meetings

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SLIDE 129

2011 SERTP 2011 SERTP Upcoming 2012 Upcoming 2012 SERTP Process SERTP Process

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SLIDE 130

Upcoming 2012 SERTP

Upcoming 2012 SERTP Process Upcoming 2012 SERTP Process

1st

st “RPSG” Meeting*

“RPSG” Meeting*

  • March 2012

March 2012

  • Select Five Economic Planning Studies

Select Five Economic Planning Studies

Preliminary Expansion Plan Meeting* Preliminary Expansion Plan Meeting*

  • June 2012

June 2012

  • Preliminary 10 Year Expansion Plan

Preliminary 10 Year Expansion Plan

130 130 130

  • Preliminary 10 Year Expansion Plan

Preliminary 10 Year Expansion Plan

2nd

nd “RPSG” Meeting*

“RPSG” Meeting*

  • September 2012

September 2012

  • Preliminary Economic Planning Study Results

Preliminary Economic Planning Study Results

Annual Transmission Planning Summit* Annual Transmission Planning Summit*

  • December 2012

December 2012

  • Ten Year Expansion Plan / 2013 Input Assumptions

Ten Year Expansion Plan / 2013 Input Assumptions

  • Final Economic Planning Study Results

Final Economic Planning Study Results *Order 1000 will be discussed at the above meetings as previously described. *Order 1000 will be discussed at the above meetings as previously described.

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SLIDE 131

2011 SERTP 2011 SERTP Questions? Questions?