Central Region Projects. Central SPM 12/05/2011 Carmel, IN

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1 Central Region Projects Central SPM 12/05/2011 Carmel, IN

2 HOOSIER ENERGY (HE) Proposed Project Review

3 Hoosier Energy (HE) HE has a total of 0 projects in the project database No project proposals recommended for moving to Appendix A or Appendix B in MTEP12 No project proposals are targeted for Appendix C in MTEP12 3

4 HE MTEP11 C3 Analysis There are no Category C3 contingency thermal overloads requiring load shed > 100 MWs There are no voltage issues with an individual bus having > 10 related Category C3 contingencies requiring load shed > 100 MWs 4

5 VECTREN (SIGE) Proposed Project Review

6 Vectren (SIGE) Vectren has a total of 0 projects in the project database No project proposals recommended for moving to Appendix A or Appendix B in MTEP12 No project proposals are targeted for Appendix C in MTEP12 6

7 Vectren MTEP11 C3 Analysis There are no Category C3 contingency thermal overloads requiring load shed > 100 MWs There are no voltage issues with an individual bus having > 10 related Category C3 contingencies requiring load shed > 100 MWs 7

8 BIG RIVERS ELECTRIC CORPORATION (BREC) Proposed Project Review

9 Big Rivers Electric Corporation (BREC) BREC has a total of 13 projects in the project database One project proposal recommended for moving to Appendix A as an Out-of-Cycle project 12 project proposals are not targeted to move to Appendix A or B in MTEP12 9

10 BREC: P3792 (Out-of-Cycle) Wilson-Matanzas 161 kv Interconnection with LG&E and KU Create a new 161 kv BREC-LG&E/KU interconnection by looping the Wilson- Paradise portion of the three terminal interconnection through a new Matanzas substation (LG&E\KU) The loop will require 600 feet of new 954 MCM ACSS construction and will be located 10.5 miles from Wilson. The new LG&E\KU Matanzas station will include 2 161/138 kv transformers, (2) 161 kv line terminals, (2) 138 kv line terminals, (6) 138 kv breakers, and (6) 161 kv breakers. Expected ISD: 12/1/2012 Estimated Cost: $0 (All cost paid for by LG&E and KU TO System Need: The new interconnection and substation are reliability based projects required by LG&E\KU to provide voltage support in the Green River area. Alternative: Alternatives considered by LG&E\KU include a 161 Green River to Paradise interconnection; a second Green River to Wilson 161 kv interconnection; and a Green River to Wilson 345 kv interconnection. Target Appendix: A in MTEP12 Preliminary Project Type: Other (Reliability) (Not Cost Shared) 10

11 Big Rivers Electric Corporation (BREC) Future Projects There are a number of BREC projects still in the early stages of planning. 12 in Appendix C These projects are presented for informational purposes 11

12 BREC - Appendix C Projects Greater than $1M

13 BREC: P3439 New Ensor 161/69 kv Substation Construct new 161/69 kv substation with 56 MVA transformer Expected ISD: 12/31/2022 Estimated Cost: $6,200,000 TO System Needs: o NERC Category B thermal overload and voltage issues with loss of one Daviess County 161/69 kv transformer Alternatives: No other alternatives have been considered as of this time. Target Appendix: C in MTEP11 Preliminary Project Type: Baseline Reliability (Not Cost Shared) 13

14 BREC: P3440 New Reid 161/69 kv Substation Transformer Add a 56 MVA transformer to the existing Reid EHV Substation Expected ISD: 12/31/2024 Estimated Cost: $5,000,000 TO System Needs: o NERC Category B thermal overload with loss of one Reid Switchyard 161/69 kv transformer Alternatives: No other alternatives have been considered as of this time. Target Appendix: C in MTEP11 Preliminary Project Type: Baseline Reliability (Not Cost Shared) 14

15 BREC: P3443 Hardinsburg 161/69 KV Substation Transformer Replacements Replace both 50 MVA, 161/69 kv transformers with 100 MVA Expected ISD: 12/31/2017 Estimated Cost: $4,000,000 TO System Needs: o NERC Category B thermal overload and low voltages with loss of one of the two Hardinsburg Substation 161/69 kv transformers Alternatives: No other alternatives have been considered as of this time. Target Appendix: C in MTEP11 Preliminary Project Type: Baseline Reliability (Not Cost Shared) 15

16 BREC: P3436 New Wilson to Sacremento 69 kv Line Addition Construct a new 11 mile long 69 kv line between Wilson and Sacremento Substations. Add 69 kv line terminal at Wilson Substation. Expected ISD: 12/31/2018 Estimated Cost: $2,100,000 TO System Needs: o NERC Category B low voltages during outage of Reid to Steamport 69 kv line and possible transformer overload at Hopkins County. Alternatives: No other alternatives have been considered as of this time. Target Appendix: C in MTEP11 Project Type: Other (Reliability) 16

17 BREC: P3442 New White Oak 161/69 kv Substation Transformer Addition Add a second 56 MVA transformer to the planned White Oak Substation Expected ISD: 12/31/2024 Estimated Cost: $1,900,000 TO System Needs: o Various outages result in heavy loadings on the single White Oak Substation 161/69 kv transformer Alternatives: No other alternatives have been considered as of this time. Target Appendix: C in MTEP11 Preliminary Project Type: Baseline Reliability (Not Cost Shared) 17

18 BREC-Appendix C Projects Under $1M PrjID Proj_Name Proj_Desc Need_Summary Est_Cost Expected ISD Meade County 161/69 transformer addition Daviess County to Philpot Tap reconductor. Rome Junction to West Owensboro 69 kv reconductor. Brandenburg 69 kv capacitor addition Hardinsburg No. 1 to Harned 69 kv reconductor. Olivet Church Road to Olivet Church Road Tap 69 kv reconductor. Thruston Junction to East Owensboro reconductor. Add a third 56 MVA transformer to the existing Meade County substation. Reconductor 7.7 miles of 267 MCM ACSR with 336 MCM ACSS Reconductor 5.8 miles of 3/0 and 267 MCM ACSR with 336 MCM ACSS Add a 6 MVAR capacitor in the Brandenburg/Battletown area. Reconductor 2 miles of 3/0 ACSR with 336 MCM ACSS Reconductor 1.4 miles of 4/0 ACSR with 336 MCM ACSS Reconductor.4 miles of 3/0 ACSR with 336 MCM ACSR Low voltages and transformer overloads during an outage of one Meade County 161/69 kv transformer. $700,000 12/31/2020 Overload with loss of the Hancock County to Lewisport 69 kv line. $580,000 12/31/2018 Overload with loss of the Reid to St. Joe 69 kv line. $440,000 12/31/2017 Low voltages during outage of Doe Valley Tap to Brandenburg 69 kv line. Overload during various switching arrangements. Overload with loss of the Little Union Tap to Coleman Rd 69 kv line. Overload with service to both South Dermont and East Owensboro. $300,000 12/31/2020 $170,000 12/31/2022 $150,000 12/31/2020 $40,000 12/31/

19 BREC MTEP11 C3 Analysis There are no Category C3 contingency thermal overloads requiring load shed > 100 MWs There are no voltage issues with an individual bus having > 10 related Category C3 contingencies requiring load shed > 100 MWs 19