ML090300484

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Energysolutions 2008 Decommissioning Cost Estimate Study of the Kewaunee Nuclear Power Plant, Document No. 82A9584, Revision 0, Addendum No. 001
ML090300484
Person / Time
Site: Kewaunee Dominion icon.png
Issue date: 11/25/2008
From: Sims B
EnergySolutions
To:
Dominion Energy Kewaunee, Office of Nuclear Reactor Regulation
References
08-0702 82A9584, Rev 0, ADD 001
Download: ML090300484 (38)
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Text

J November 25, 2008 Effective Date E"NERGYSOLUTIONS ADDENDUM AUTHORIZATION Document

Title:

Decommissioning Cost Estimate Study of the Kewaunee Nuclear Power Plant Document No. 82A9584, Revision 0 Addendum No.: 001 Originator: Barry Sims For Site/Utility: Dominion Resources Services, Inc., Kewaunee Nuclear Power Plant Description of Addendum:

This Addendum to the Decommissioning Cost Study of the Kewaunee Nuclear Power Plant (82A9584) updates the Scenario 2 cost to 2008 dollars and incorporates (1) revisions to spent fuel management costs due to the delay in the Yucca Mountain opening date from 2017 to 2020 and (2) requirements for on-site interim storage of Class B and C low-level radioactive waste due to the current lack of national capacity for disposal of these wastes.

Reason for Change:

Provide an updated decommissioning estimate for submittal to the Nuclear Regulatory Commission to satisfy the requirements of submitting a decommissioning estimate five-years prior to the planned shut-down.

APPROVALS:

Title , iiSigqnatureiiiiil l* i: Date Prepared By Barry Sims 42 ue, 11/24/08 Technical Reviewer Lisa Walker. 11/24/08 Vice President Lee G. Penney 11/25/08 Approvals for the Addendum shall at least be equal to the approvals of the base document and may include customer sign off.

Distribute to all Controlled Copy holders of affected document.

A copy of this authorization shall be attached to the affected document.

A Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 TABLE OF CONTENTS Section Page

1.0 INTRODUCTION

....................................................................................................... 1 2.0

SUMMARY

OF 2006 STUDY RESULTS ...................................................................... 1 3.0 BASES FOR REVISED COST ................................................................................. 5 3.1 Changes in Key Assumptions ........................................................................... 5 3.2 Escalation to 2008 Dollars ............................................................................... 6 3.3 Revision of Spent Fuel Management Cost ....................................................... 6 3.4 Interim Storage of Class B and C LLRW .......................................................... 7 3.5 Revised Scenario 2 Study Results ...................................................................... 8 4.0 RE FE REN C E S ............................................................................................................... 11 TABLES Table 2-1 Scenario 2 Cost Summary by Account ......................................................... 2 Table 2-2 Scenario 2 Cost and Schedule Summary .................................................... 4 Table 3-1 Updated Cost Summary by Account .......................................................... 10 Table 3-2 Updated Cost and Schedule Summary ....................................................... 10 FIGURES Figure 2-1 Scenario 2 Summary Schedule ..................................................................... 3 Figure 3-1 Updated Summary Schedule ........................................................................ 9 APPENDICES Appendix A Updated Spent Fuel Shipping Schedule Appendix B Updated Project Schedule Appendix C Updated Detailed Cost Table Appendix D Updated Annual Cash Flow Table i

(

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001

1.0 INTRODUCTION

This addendum presents an update to the 2006 Decommissioning Cost Estimate Study of the Kewaunee Nuclear Power Plant (Ref. No. 1), hereinafter referred to as the 2006 Cost Study. The Kewaunee Nuclear Power Plant (Kewaunee) is owned by Dominion Energy Kewaunee, Inc.

(DEK).

Specifically, the addendum provides an economic and technical update to Scenario 2 of the 2006 Cost Study which was based on the existing license expiration date of December 21, 2013, a 2017 Yucca Mountain opening date, and prompt dismantlement. This addendum was prepared to assist DEK in fulfilling the requirement for submission of a preliminary decommissioning plan and decommissioning cost estimate in accordance with Title 10 Code of Federal Regulations (CFR) Part 50.75(f)(2). This update of the 2006 Cost Study incorporates an up-to-date assessment of the major factors that could affect decommissioning Kewaunee at the end of the current license. EnergySolutions has incorporated the following revisions to Scenario 2 of the 2006 Cost Study.

1. Escalating costs from 2005 to 2008 dollars using aggregate annual escalation rates furnished by DEK.
2. Increasing spent fuel management costs to account for the delay in the Yucca Mountain opening date from 2017 to 2020 using a revised spent fuel shipping schedule furnished by DEK.
3. Incorporating the cost of establishing interim storage of Class B and C Low-Level Radioactive Waste (LLRW) due to the closure of the Barnwell LLRW Disposal Facility to out-of-compact generators in July 2008.
4. Incorporating the transportation and disposal cost of Class B and C operational waste projected by DEK to be accumulated during the period between November 2008 and December 21, 2013.
5. Incorporating the cost of placing Class B and C waste generated during decommissioning into environmentally secure reinforced concrete storage modules, and the subsequent removal of these wastes for transportation and disposal following the assumed 2025 opening of a hypothetical Class B and C waste disposal facility.
6. Incorporating the cost of demolition and disposal of the Class B and C reinforced concrete storage modules. The storage modules are assumed to be radiologically surveyed for release, but not to require surface decontamination.
7. Incorporating the Independent Spent Fuel Storage Installation (ISFSI) Phase 1 as-built and Phase 2 addition design information that was not available at the time of the 2006 Cost Study into the estimated cost of demolishing the ISFSI.

2.0

SUMMARY

OF 2006 COST STUDY RESULTS The 2006 Cost Study presented the results of a site-specific Decommissioning Cost Estimate Study for the Dominion Virginia Power (Dominion) Kewaunee Power Station. The study was performed to furnish an estimate, for financial planning purposes, of the costs for (1) decommissioning Kewaunee to the extent required to terminate the plant's operating license per 10 CFR 50.75(c), (2) post-shutdown management of spent fuel until acceptance by the U.S.

Page 1 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Department of Energy (DOE) per 10 CFR 50.54(bb), and (3) clean demolition of structures and restoration of the site to Greenfield conditions.

Accordingly, EnergySolutions established a Work Breakdown Structure (WBS) and cost accounting system to differentiate between three project accounts: "License Termination" (10 CFR 50.75(c)), "Spent Fuel" (10 CFR 10.54(bb)), or "Greenfield". The 2006 Cost Study costs and schedules for all activities were presented using these accounts. All costs were current as of September 2005.

The 2006 Cost Study analyzed six scenarios as defined by.Dominion. The current study is an update to the 2006 Cost Study Scenario 2. The cost summary for Scenario 2, summarized by account, is given in Table 2-1.

Table 2-1 Scenario 2 Cost Summary by Account (2005 Dollars in Thousands)

License Spent Fuel Termination - Management -

50.75(c) 50.54 (bb) G*reenf*el Total

$334,313 $273,386 $19,170 $626,869 Scenario 2 was comprised of the following:

  • DECON methodology.
  • No license extension with shutdown on December 21, 2013.
  • Terminate spent fuel pool operation seven years after permanent unit shutdown.
  • Spent fuel will be stored in Multi-Purpose Canisters (MPCs) at an onsite Independent Spent Fuel Storage Installation (ISFSI) to be built in the future.
  • A dry transfer facility will not be necessary.
  • Yucca Mountain spent fuel repository opens in 2017.

This scenario incorporated the spent fuel schedule, developed by Dominion, modified to include the disposition of one Multi-Purpose Canister (MPC) containing Greater Than Class C (GTCC) waste. Spent fuel shipments to the DOE repository from the spent fuel pool begin in 2019 and are completed in 2047. The 10 CFR Part 50 license is terminated by 2021 with the 10 CFR Part 72 ISFSI license being terminated by 2048. The cost of a 10 CFR Part 72 ISFSI site-specific license and renewal was included. Figure 2-1 shows the summary project schedule, which was based on the spent fuel shipping constraints.

Page 2 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Page 3 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Table 2-2 summarizes the period durations and total costs, including contingency, for License Termination, Spent Fuel and Greenfield activities.

Table 2-2 Scenario 2 Cost and Schedule Summary (2005 Dollars in Thousands)

,,.Period-.No. Period Description. S:start. End: Yeaisý Total Cost A. License Termination (50.75(c))

Decon Pd 1 Decommissioning Planning 12/21/2013 12/11/2015 1.97 $93,122 Decon Pd 2 Post-Shutdown Modifications and Preparations 12/11/2015 6/17/2016 0.51 $46,156 Decon Pd 3 Major Component Removal 6/17/2016 1/6/2018 1.55 $112,187 Decon Pd 4a Building Decontamination 1/6/2018 6/30/2018, 0.47 $35,111 Decon Pd 4b Optimization Delay for Removal of Fuel from Pool 6/30/2018 12/21/2020 2.47 $17,806 Decon Pd 4c Balance of Decontamination and Final Status Survey 12/21/2020 11/21/2021 0.91 $29,931 Account Total 7.88 $334,313 B. Spent Fuel (50.54(bb))

Dry Pd 1 Fuel Pool Island Planning and Design 12/21/2013 4/3/2015 1.28 $20,383 Dry Pd 2 Spent Fuel Cooling and Transfer to Dry Storage 4/3/2015 12/21/2020 5.71 $103,324 Dry Pd 3 Dry Storage 12/21/2020 5/8/2048 27.37 $145,158 Dry Pd 4 ISFSI Demolition and Final Site Restoration 5/8/2048 9/11/2048 0.34 $4,521 Account Total 34.70 $273,386 C. Greenfield Gm Pd 1 Clean Building Demolition 11/21/2021 1/15/2023 1.14 $14,047 Gm Pd 2 Site Restoration 1/15/2023 3/12/2023 0.15. $5,123 Account Total 1.29 $19,170 Scenario Total $626,869 The estimated cubic feet of waste for Scenario 2 was summarized as follows:

Class A 105,610 Class B 1,688 Class C 1,299 Greater than Class C 168 Page 4 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 3.0 BASES FOR REVISED COST 3.1 Changes in Key Assumptions The key assumptions used in the 2006 Cost Study can be categorized as either financial or technical. Financial assumptions consist of the unit cost of labor, labor overhead (consisting of fringe benefits and overhead), material, equipment, energy, contractor services, insurance, regulatory fees and property taxes required to perform decommissioning and spent fuel management activities. Additionally, the financial assumptions include the escalation rates applied to the various cost components to calculate a net present value of the future decommissioning and spent fuel management liabilities.

Technical assumptions pertain to the means and methods applied to accomplish decommissioning while satisfying environmental, safety, health and all other regulatory requirements. Technical assumptions are also affected by external constraints such as the availability of both a spent fuel repository, or other means of spent fuel disposition, and Low Level Radioactive Waste (LLRW) disposal facilities. The timeframes for availability of these facilities have a direct impact on the overall project schedule for decommissioning and spent fuel management.

Two significant changes in key technical assumptions have occurred since completion of the 2006 Cost Study. These are:

  • Effective July 2008, the Barnwell facility in South Carolina no longer accepts LLRW from generators outside the Atlantic Compact, which is comprised of the states of South Carolina, Connecticut and New Jersey. With the closure of the Barnwell disposal facility, Kewaunee will no longer have access to a disposal facility for Class B and C wastes.

" In July 2008, Edward Sproat, III, Director of the Office of Civilian Radioactive Waste Management, testified to the U.S. House of Representatives that 2020 will be the earliest possible opening date for the Department of Energy's Yucca Mountain repository (Ref.

No. 2).

The lack of a national capacity for Class B and C LLRW disposal will require generators to store these wastes on-site until a new facility is licensed and constructed to accept these wastes or until other commercial options for disposal become available. In keeping with guidance from DEK, EnergySolutions has incorporated the assumption that a Class B and C waste disposal facility will become available in 2025, and that the Phase 2 addition to the existing ISFSI may be licensed and used for interim storage of Class B and C waste.

As discussed in Section 2.1, the 2006 Cost Study assumed a Yucca Mountain opening date of 2017. Consistent with the recent Congressional testimony of Mr. Sproat regarding the Yucca Mountain opening date, EnergySolutions has incorporated a Yucca Mountain opening date of 2020 into the current update.

Page 5 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 The current updated estimate now encompasses the following:

  • DECON methodology.
  • No license extension; shutdown on December 21, 2013.

" Termination of spent fuel pool operation seven years after permanent unit shutdown.

" Yucca Mountain opening date will be in 2020.

  • The ISFSI Phase 2 construction cost. Phase 2 will be required to allow transfer of all spent fuel to the ISFSI. Spent fuel will be stored in Multi-Purpose Canisters (MPCs) at the existing onsite ISFSI as well at its addition.
  • A dry transfer facility will notbe necessary.
  • The ISFSI Phase 2 addition may be licensed and used for interim storage of Class B and C waste.
  • A Class B and C waste disposal facility will become available in 2025.

" Updated costs are escalated to 2008 dollars and new cost elements added are based on 2008 cost data.

  • Class B and C waste currently in inventory, along with an estimate of annual quantities generated during operations through shut-down, will be stored on-site until decommissioning.

3.2 Escalation to 2008 Dollars All 2006 Study costs were escalated from 2005 to 2008 dollars using the following annual aggregate escalation rates furnished by DEK:

2005 to 2006 3.863%

2006 to 2007 3.80%

2007 to 2008 3.814%

3.3 Revision of Spent Fuel Management Costs DEK provided EnergySolutions with an updated spent fuel shipping schedule incorporating the revised Yucca Mountain opening date of 2020. The spent fuel shipping schedule furnished by DEK is based in part on the DOE's "Acceptance Priority Ranking & Annual Capacity Report,"

dated July 2004 (Ref. No. 3). The updated spent fuel shipping schedule is provided in Appendix A.

The delay in the opening date of Yucca Mountain from 2017 to 2020 had three effects on the cost estimate. First, the number of dry storage modules to be purchased during decommissioning increased from 31 to 33. Second, the ISFSI demolition costs increased due to the increase in the number of dry storage modules. Third, the ISFSI operating costs increased because the duration of ISFSI operations was extended from 2047 to 2049.

Additionally, the spent fuel management costs were increased to account for (1) the ISFSI as-built and Phase 2 design information that was not available during the 2006 Cost Study, which contributed to the increased ISFSI demolition costs, and (2) the inclusion of the Phase 2 construction cost. The 2006 Cost Study assumed that the ISFSI would be sufficient to transfer all spent fuel into dry storage following shutdown.

Page 6 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 3.4 Interim Storage of Class B and C LLRW The current lack of available Class B and C LLRW disposal capacity had the following effects on the cost estimate:

1. The ISFSI may have to be licensed for storage of these wastes.
2. Environmentally secure reinforced concrete storage modules must be purchased and may be installed on the ISFSI Phase 2 pad for receipt of Class B and C LLRW generated during decommissioning.
3. Class B and C LLRW generated during decommissioning, from chemical decontamination, filtration and segmentation of the reactor internals, will be placed in interim storage. Therefore, transportation and waste disposal costs for these activities will be deferred until 2025. At that time additional labor, material and equipment costs will be incurred to remove the wastes from the interim storage modules and place them in a shipping cask for transportation.
4. DEK will accumulate legacy Class B and C spent ion exchange resins and filters generated during operations that will require disposal during decommissioning.
5. The reinforced concrete storage modules will require radiological survey and disposal following completion of off-site disposal of the Class B and C wastes. Because the storage modules may be collocated at the ISFSI, the demolition of these modules is assumed to be deferred until the ISFSI demolition.
6. A new decommissioning period (Decon Pd 4d) was added to the project schedule and Work Breakdown Structure (WBS). This period consists of the removal of Class C and B waste in interim storage and transfer to a shipping cask for transportation and disposal.

The period also includes performance of a verification survey to terminate the interim waste storage facility license. The period extends from June 1, 2025 to June 26, 2026.

DEK provided EnergySolutions with construction details and pricing for Dufrane Nuclear Shielding, Inc. Secure Environmental Container (SEC) model 8-120-H storage modules. Each module is designed to store an 8-120 cask liner or High Integrity Container (HIC). The Class B and C decommissioning waste will require 35 SEC model 8-120-H storage modules. An additional 14 SEC model 8-120-H storage modules will be required for the spent ion exchange resin and filter waste generated during operations; however, the cost of purchasing these modules will be incurred prior to shutdown and therefore are not included in the decommissioning estimate.

The cost developed in the 2006 Cost Study for disposal of the Class B and C wastes generated during decommissioning was based on the Barnwell published base rate and surcharge structure, and assumed to be representative of waste disposal rates at a future Class B and C waste disposal facility. This assumption in the 2006 Cost Study is still considered to be valid, therefore, escalation of the Class B and C waste disposal costs using DEK's aggregate annual escalation rates is reasonable. As stated in Section 3.1 above, new cost elements incorporated into this update are based on 2008 costs. Therefore, the waste disposal costs in 2008 dollars for the added cost element consisting of the operational waste disposal was developed using the Barnwell Atlantic Compact Rate Structure effective July 2007, which is the most current pricing available.

The interim waste storage facility may be collocated with the spent fuel dry storage modules and Page 7 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 will require minimal maintenance and surveillance during the storage period; therefore, no additional undistributed costs were assumed to be required during Decon Pd 4d.

This study conservatively assumes that, following a radiological release survey, the reinforced concrete interim waste storage modules will be rubbleized and the resulting concrete and steel debris will be disposed of at a demolition debris landfill during the ISFSI demolition. However, it is likely that these storage modules could be transferred to another DEK power plant for reuse or sold to another nuclear utility.

3.5 Revised Scenario 2 Study Results Figure 3-1 is a summary project schedule. A detailed schedule is provided in Appendix B. The schedule is based on the spent fuel shipping constraints. The 10 CFR Part 50 license is terminated by 2021, with the 10 CFR Part 72 ISFSI license being terminated by 2050.

Page 8 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Figure 3-1 Updated Summary Schedule Page 9 of 11

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 An updated cost summary by account is given in Table 3-1:

Table 3-1 Updated Cost Summary by Account (2008 Dollars in Thousands)

Table 3-2 summarizes the updated period durations and total costs, including contingency, for License Termination, Spent Fuel and Greenfield activities. The updated Detailed Cost Table is provided in Appendix C, and the updated Annual Cash Flow Table is provided in Appendix D.

Table 3-2 Updated Cost and Schedule Summary (2008 Dollars in Thousands)

Period No. PeriodDescription Start, Efnd Years ,"Total.Costý_

A. License Termination (50.75(c))

Decon Pd I Decommissioning Planning 12/21/13 12/11/15 1.97 $104,611 Decon Pd 2 Post-Shutdown Modifications and Preparations 12/11/15 06/17/16 0.51 $51,439 Decon Pd 3 Major Component Removal 06/17/16 01/06/18 1.55 $110,264 Decon Pd 4a Building Decontamination 01/06/18 06/30/18 0.47 $39,299 Decon Pd 4b Optimization Delay for Removal of Fuel from Pool 06/30/18 12/21/20 2.47 $19,929 Decon Pd 4c Balance of Decontamination and Final Status Survey 12/21/20 11/21/21 0.91 $33,498 Decon Pd 4d Disposition of Waste in Interim Storage 06/01/25 06/26/26 1.06 $21,583 Account Total 8.94 $380,623 B. Spent Fuel (50.54(bb))

Dry Pd 1 Fuel Pool Island Planning and Design 12/21/13 04/03/15 1.28 $22,815 Dry Pd 2 Spent Fuel Cooling and Transfer to Dry Storage 04/03/15 12/21/20 5.71 $119,398 Dry Pd 3 Dry Storage 12/21/20 05/09/50 29.38 $174,012 Dry Pd 4 ISFSI Demolition and Final Site Restoration 05/09/50 09/12/50 0.34 $6,175 Account Total 36.71 $322,400 C. Greenfield Grn Pd 1 Clean Building Demolition 11/21/21 01/15/23 1.14 $15,720 Gm Pd2 Site Restoration 01/15/23 03/12/23 0.15 $5,734 Account Total 1.29 $21,454 Scenario Total $724,477 Page 10 of I1

p Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 LLRW disposal volumes for Class B and C wastes increased due to the inclusion of the operational waste that will be placed into interim storage. The updated estimated cubic feet of waste is summarized as follows:

Class A 105,610 Class B 2,049 Class C 2,622 Greater than Class C 168

4.0 REFERENCES

1. EnergySolutions, Inc., "Decommissioning Cost Estimate Study of the Kewaunee Nuclear Power Plant," Document No. 82A9584, Rev. 0, June 16, 2006.
2. Congressional Testimony, Edward F. Sproat, III, Director Office of Civilian Radioactive Waste Management, U.S. Department of Energy Before the Subcommittee on Energy and Air Quality, Committee on Energy and Commerce, U.S. House of Representatives, July 15, 2008.
3. U.S. Department of Energy, "Acceptance Priority Ranking & Annual Capacity Report,"

DOE/RW-0567, July 2004.

Page 11 of 1l

6.

Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Appendix A Updated Spent Fuel Shipping Schedule

f Kewaunee Power Station Scenario 2 - Spent Fuel Shipping Schedule, Existing License and Repository Open in 2020 2009 44 2 64 1061 64 1125 0 0 0 2010 ,0 2 64 997 128 1125 0 0 0 2011 44 0 0 1041 128 1169 0 0 0 2012 44 2 64 1021 192 1213 0 0 0 2013 121 4 128 1014 320 1334 0 0 0 2014 0 23 736 278 1056 1334 0 0 0 2015 0 1 32 246 1088 1334 0 0 0 2016 0 3 64 182 1152 1334 0 0 0 2017 0 0 0 182 1152 1334 0 0 0 2018 0 1 32 150 1184 1334 0 0 0 2019 0 1 32 118 1216 1334 0 0 0 2020 0 4 118 0 1334 1334 0 0 0 2021 0 0 0 0 1334 1334 0 0 0 2022 0 0 0 0 1302 1302 32 0 32 2023 0 0 0 0 1238 1238 64 0 64 2024 0 0 0 0 1174 1174 64 0 64 2025 0 0 0 0 1110 1110 64 0 64 2026 0 0 0 0 982 982 128 0 128 2027 0 0 0 0 918 918 64 0 64 2028 0 0 0 0 854 854 64 0 64 2029 0 0 0 0 790 790 64 0 64 2030 0 0 0 0 758 758 32 0 32 2031 0 0 0 0 694 694 64 0 64 2032 0 0 0 0 630 630 64 0 64 2033 0 0 0 0 566 566 64 0 64 2034 0 0 0 0 566 566 0 0 0.

2035 0 0 0 0 534 534 32 0 32 2036 0 0 0 0 502 502 32 0 32 2037 0 0 0 0 470 470 32 0 32 2038 0 0 0 0 406 406 64 0 64 2039 0 0 0 0 374 374 32 0 32 2040 0 0 0 0 342 342 32 0 32 2041 0 0 0 0 310 310 32 0 32 2042 0 0 0 0 246 246 64 0 64 2043 0 0 0 0 214 214 32 0 32 2044 0 0 0 0 182 182 32 0 32 2045 0 0 0 0 150 150 32 0 32 2046 0 0 0 0 118 118 32 0 32 2047 0 0 0 0 54 54 64 0 64 2048 0 0 0 0 22 22 32 0 32 2049 0 0 0 0 0 0 22 0 22 2050 0 0 0 0 0 0 0 0 0 Total Number MPCs 43 No. Post S/D MPCs for fuel assemblies 33 No. Post S/D MPCs for GTCC 1 Number MPCs Required During Operation 10 Note: Number of dry storage modules in 2016 includes two for spent fuel and one for Greater Than Class C Waste generated during segmentation of the reactor internals.

N Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Appendix B Updated Project Schedule

Kewaunee Power Station Scenario 2 2008 Update Detailed Project Schedule DECON with Dry Storage, Fuel Pool Island, 2013 Shutdown and Repository Open in 2020 Note: Due to limitation of MS Project add 20 years to all dates In Task Name Duration Start Finish -111 r3H 1 Post-Shutdown Spent Fuel Management 9583 days 12/2111993 911212030 2 Spent Fuel Shipping to DOE Repository Begins 0 days 111/2002 111/2002

  • 1/1 3 Spent Fuel Shipping Complete 0 days 12J2112029 12/2112029 12/21 4 Dry Pd 1 - Fuel Pool Island Planning and Design 335 days 12/21/1993 4/3/1995 5 Design Spent Fuel Pool Support System Modificatons 160 days 12/21/1993 81111994 6 Design Control Room Relocation 175 days 8/2/1994 4/3/1995 7 Design Spent Fuel Security System Modificaions 130 days 8t2/1994 1/30/1995 8 Dry Pd 2 - Spent Fuel Cooling Period and Transfer to Dry Storage 1493 days 4/3/1995 12/21/2000 9 Dry Pd 2 Begins S days 4/311995 4/3/1995 4/3

-I 10 Modify Spent Fuel Support Systems 60 days 4/4/1995 6/26/1995 t1 Modify Control Room 60 days 4/4/1995 6/26/1995 12 Modify SNF Security Systems 60 days 4/4/1995 6/26/1995 13 Construct ISFSI Phae 2 Concrete Pad and Approach Apron 120 days 4/4/1995 9/18119t9 14 Minimum Fuel Cooling and Transfer From Pool to DOE and Dry Storage 1493 days 4/4/1995 12/21/2000 S12/21 15 Spent Fuel Pool Empty 0 days 12/21/2000 12/21/2000 16 Dry Pd 3 Dry Storage 7660 days 12/2112000 5/912030 17 Dry Storage Only Period Begins S days 12/21/2000 12/2112000 12/21 ti Preparation and NRC Review of Part 72 License Terminaton Plan 180 days 3/2/2029 1118/2029 19 Verification Survey of Horizontal Storage Modules 30 days 11/23/2029 1/3/2030 20 Preparatoln of Final Report on Decommissioning and NRC Review 90 days 1/4/2030 5/9/2030 21 Part 72 Ucense Terminated 0 days 5/9/2030 5/5/2030 22 Dry Storage Only Period Ends 0 days 5/9/2030 5/9/2030 5/9 23 Dry Pd 4 - ISFSI and Support Structure Clean Demnolition 90 days 5/1012030 9/12/2030 24 Clean Demolition oflISFSI 90 days 5/10/2030 9112/2030 25 Deonolition and Disposal of Class B and C Storage Modules 20 days 8/16/2030 9112/2030 *7/4 26 Clean Demolition of ISFSI Support Stuctures and Site Restoration 40 days 5/10/2030 7/4/2030 27 Post-Shutdown Spent Fuel Management Complete 0 days 7/4/2030 7/4/2030 28 Part 00 License Termination 3225 days 12/2111993 6/27/2006

- Y"1=1"m 29 Unit 1 Shutdown 0 days 12/21/1993 12/21/1993 30 New Class B and C Facility Becomes Available 0 days 6/1/2005 6/f/2005 7 ~12121 31 Decon Pd 1 - Decommissioning Planning Following Shutdown 015 days 12/2111993 12/111199S 32 Decon Pd 1 Begins S days 12/21/1993 12/21/1993 33 Regulatory Compliance 180 days 12/2111993 8129/1994 P 34 Prepare Unit I PSDAR &Shutdown Cetification 60 days 12/21/1993 3114/1994 35 Prepare Decommissioning Ucense Documents BSO days 12/21/1993 8/29/1994 36 Prepare Modifications to Technical Specifcations t10 days 12/21/1993 8/29/1994 37 License ISFSI For Class B and C Interim Waste Storage 155 days 12/21/1993 8/8/1994 38 Engineering and Planning 515 days 12/2111993 12/1111995 39 Decommissioning Planning and Design 85 days 12/21/1993 4/18/1994 p",

40 Prepare Integrated Work Sequence and Schedule 55 days 4/1911994 7/411994 41 Prepare Activity Specifications 280 days 7/5/1994 7/31/1995 42 Prepare Detailed Work Procedures 375 days 7/511994 12/111it/l 43 Design Containment Access Modifications 65 days 7/511994 10/3/1994 44 Develop Site Repowering Plan and Procedures IS0 days 7/1/1994 3/13/1995 45 Develop Approach for Primary System Decontamination 135 days 7/5/1994 1/911995 46 Develop Site Characterization and Final Status Survey Procedures 130 days 7/5/1994 1/2/1995 47 Procure Nonenginenred Standard Equipment 90 days 1/10/1995 5/I1511995 48 Design and procure special equipment and materials 90 days 1/10/1995 5/15/1995 49 Test Special Equipment 90 days 5/1/1995 911811995

Kewaunee Power Station Scenario 2 2008 Update Detailed Project Schedule DECON with Dry Storage, Fuel Pool Island, 2013 Shutdown and Repository Open in 2020 Note: Due to limitation of MS Project add 20 years to all dates ID Task Name Duration 1 Start Finish -1111 13 14 15 16 17126819 11011111211311411511511711611920121 2223i24125126 27128129130131132133134135136137138139141 50 Decon Pd 1 Ends 5 days U1211III995 12I/11/199

,51 Decon Pd 2 - Post-Shutdown Modifications and Preparation 135 days 12/11/1999 611711996 [ý 12J111 52 Decon Pd 2 Begins 0 days 12/11/1995 1211111995 53 Construct new change rooms, hot laundry, in-plant laydown areas 90 days 12/12/1995 411511996 0-54 Purchase and Install Class B and C Storage Modules for Decommissioning Waste 22 days 12/12/1995 1/1011996 55 Perform Baseline Radiation Survey 90 days 12112/1995 4115/1996 0, 56 Primary System Decon, Place Class B Waste In Interim Storage 60 days 12/12/1995 3/411996 57 Flush and Drain Non-Essential Systems, Place Waste In Interim Storage 20 days 3/5/1996 4/1/1996 58 Asbestos Abatement 45 days 4/2/1996 6/3/1996 59 Implement cold & dark 90 days 12/12/1995 4/15/1996 6/17 60 Modify Containment Access 90 days 12112/1995 4/15/1996 61 Vessel and Internals Removal Preparaton 45 days 4116/1996 6117/1996 62 Decon Pd 2 Ends 0 days 6/17/1996 6/17/1996 63 Oecon Pd 3 Major Component Removal 406 days 611711996 1/6/1998 6117 64 Decon Pd 3 Begins 0 days 6/17/1996 6/17/1996 65 Remove Non-Essental Systems 100 days 6/18/1996 11/4/1996 66 Remove Reactor Vessel and Internals, Place Class B and C Waste In Interim Storage 226 days 6118/1996 4129/1997 67 Upper/Lower Internals Cutting Preparation 15 days 6/18/1996 7/8/1996 68 Upper Internals Segmentation 20 days 7/9/1996 8/5/1996 69 Lower Internals Segmentation 75 days 8/6/1996 11118/1996 70 Lower Internals Removal and Packaging 10 days 11/19/1996 12/2/1996 71 Vessel/Closure Head Removal Preparation 15 days 1213/1996 12/23/1996 72 Vessel and Closure Head One-Piece Removal 70 days 12/24/1996 313111997 73 Cutting Securement 21 days 4/111997 4/29/1997 74 Remove Essential Systems 135 days 4/30/1997 11/4/1997 75 Prepare License Terminaton Plan 26 wks 6/18/1996 121/16996 76 Public Hearing on LTP 4 wks 1/28/1997 2/24/1997 77 Ucense Termination Plan Approval 12 Wks 4/30/1997 7/22/1997 78 Remove Steam Generator &Pressurizer 36 wks 4/30/1997 1/611998 79 Decon Pd 3 Ends 0 days 116/1998 1/611998 80 Decon Pd 4a Building Decontamination 125 days 11611998 6/3011996 81 Decon Pd 4a Begins 0 days 116/1966 1/6/1998 82 Decon Containment Building 80 days 1/7/1998 4/28/1998 Decon Auxilary Building 25 days 4129/1998 6/211998 83 84 Decon Technical Support Center 15 days 6/311998 6/23/1998 I~r 85 Decon Decontamination Building 5 days 6/2411998 6/30/1998 86 Decon Pd 4a Ends 0 days 6130/1998 6/30/1998 I~. 10 87 Decon Pd 4b Optimization Delay 647 days 613011998 12/21/2000 88 Decon Pd 4b Begins 0 days 6/3011998 6/30/1998 69 Oecon Pd 4b Ends O days 12/21/2000 12121/2000 21221 90 Decon Pd 4c Fuel Building Decontamination 240 days 12121/2000 11/22/2001 91 Decon Pd 4c Begins 0 days 12121/2000 12/21/2000 \211 92 Remove Spent Fuel Pool Racks and Drain Fuel Pool 8 wks 1212212000 2/15/2001 93 Decon Fuel Handling Building 40 days 2/16/2001 4/1212001 94 Remed/ate Soil Contamination 30 days 4/13/2001 5/24/2001 95 Perform Final Status Survey 120 days 12/22/2000 6/7/2001 96 ORISE Verification and NRC Approval 6 mons 618/2001 11/2212001 97 Decon Pd 4c Ends 0 days 11/22/2001 11/22/2001 98 Decon Complete - Ucense terminated O daYs I11/22/200 1112ZI20011 112

Kewaunee Power Station Scenario 2 2008 Update Detailed Project Schedule DECON with Dry Storage, Fuel Pool Island, 2013 Shutdown and Repository Open in 2020 Note: Due to limitation of MS Project add 20 years to all dates In Task Name Duration Start Finish -1 12 3 4 5 6 7 a 9 1011112131411511617100 l2456127812913031132133134561373g0914 99 Decon Pd 4d Disposition of Waste in Interim Storage 280 days 611/2005 6127/2006 100 Decon Pd 4d Begins 0 days 6/1/2005 6/1/2005,1 101 Disposition of Class B and C Waste in Interim Storage 140 days 6/1/2005 t2/I312005 102 Interim Class B and C Storage Facility License Termination 60 days 10/19/2005 1/10/2006 103 NRC Review and Approval 6 omons 1/11/2006 6/27/2006 104 Decon Pd 4d Ends 0 days 6/27/2006 6/27/2006 0/27 105 Gm Pd 1 Clean Building Dermolition 300 days 11122/2001 1116/2003 106 Grn Pd 1 Begins 0 days 11/22/2001 11/22/2001 11122 107 Demolish Containment Building 110 days 1//23/2001 4/2512002 108 Demolish Turbine Building 60 days 4/26/2002 7/101/2002 109 Demolish Fuel Handling Buiding 45 days 7119/2002 9/19/2002 110 Demolish Avilary Building 85 days 9//202002 1116/2003 IIl Demolish Non-Essential Strucures Not Required For ISFSI Support 160 days 11/2Y/2001 7/4/2002 112 Grn Pd I Ends 0 days 1/16/2003 111612003 1/16 113 Om Pd 2 Site Restoration 40 days 111612003 3113/2003 114 Gm Pd 2 Begins 0 days 1/16/2003 1/16/2003 1/16 115 Perform Final Site Grading 6 wks 1/17/2003 2/27/2003 116 Perform Final Site Stabilization 2 wks 2/28/2003 3/1312003 117 Grn Pd 2 Ends 0 days 3/13/2003 3113/2003 /13 118 Site Restored 0 days 3/13/2003 3/1312003 2/13

  • l Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Appendix C Updated Detailed Cost Table

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit I Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total A. License Termination Decon Pd 1 Distributed 1.01 Planning and Design of Primary System Decontamination $202 $2 $0 $0 $204 $26 $230 1.03 Planning For Asbestos Removal $131 $2 $0 $0 $133 $17 $150 1.04 Planning and Design of Cold and Dark Site Repowering $577 $6 $0 $0 $583 $76 $659 1.05 Design Containment Access Modifications $222 $3 $0 $0 $225 $29 $254 1.06 Planning and Design of Site Characterization $316 $3 $0 $0 $319 $41 $360 1.07 Administrative activities $740 $3 $0 $0 $743 $97 $840 1.08 Preparation of Decommissioning Licensing Documents $1,613 $5 $0 $0 $1,618 $210 $1,828 1.09 Decommissioning Planning and Design $241 $0 $0 $0 $241 $31 $272 1.10 Prepare Integrated Work Sequence and Schedule $141 $0 $0 $0 $141 $18 $159 1.11 Prepare Activity Specifications $2,580 $16 $0 $0 $2,596 $337 $2,933 1.12 Prepare Detailed Work Procedures $2,334 $6 $0 $0 $2,340 $304 $2,644 1.13 Prepare License Termination Plan $319 $8 $0 $0 $327 $43 $370 1.14 Prepare Written Notification of Cessation of Operations $0 $0 $0 $0 $0 $0 $0 1.15 Prepare Written Notification of Fuel Removal from Vessel $0 $0 $0 $0 $0 $0 $0 1.16 License ISFSI For Class B and C Interim Waste Storage $428 $6 $0 $459 $893 $116 $1,009 Distributed Subtotal $9,844 $60 $0 $459 $10,363 $1,345 $11,708 Undistributed 2.01 ' Utility Staff $38,808 $0 $0 $0 $38,808 $5,045 $43,853 2.04 Insurance $0: $0 $0 $888 $888 $133 $1,021 2.05 Gross Receippts Taxes $0 $0 $0 $6,503 $6,503 $975 $7,478 2.06 Permits $0 $0 $0 $1,056 $1,056 $158 $1,214 2.07 Security Gua Lrd Force $1,488 $0 $0 $0 $1,488 $223 $1,711 2.08 Energy $0 $0 $0 $1,887 $1,887 $283 $2,170 Page 1 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number' 2 License Status Existing Unit I Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total 2.10 HP Supplies $0 $904 $0 $0 $904 $136 $1,040 2.11 Supplies and Services $0 $0 $0 $940 $940 $141 $1,081 2.13 Severance $28,987 $0 $0 $0 $28,987 $4,348 $33,335 Undistributed Subtotal $69,283 $904 $0 $11,274 $81,461 $11,442 $92,903 Decon Pd 1 Subtotal $79,127 $964 $0 $11,733 $91,824 $12,787 $104,611 Page 2 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Altemative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: i/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 2 Distributed 2.01 Baseline Radiation Survey $458 $90 $0 $0 $548 $71 $619 2.02 Primary System Decon, Place Class B Waste In Interim Storage $1,026 $319 $50 $0 $1,395 $181 $1,576 2.03 Flushand Drain Non-Essential Systems, Place Class B Waste In Interim Storage $10 $2 $20 $0 $32 $4 $36 2.04 Modify Containment Access $336 $504 $0 $0 $840 $109 $949 2.05 Implement Cold and Dark $450 $1,119 $0 $0 $1,569 $204 $1,773 2.06 Asbestos Abatement of Pipe Insulation $11,979 $916 $588 $0 $13,483 $3,101 $16,584 2.07 Procure Non-Engineered Standard Equipment $0 $2,783 $0 $0 $2,783 $362 $3,145 2.08 Design, Specify, and Procure Special Items and Materials $844 $5,116 $0 $0 $5,960 $775 $6,735 2.09 Select Shipping Casks and Obtain Shipping Permits $30 $30 $0 $0 $60 $8 $68 2.10 Test Special Cutting and Handling Equipment and Train Operators $845 $845 $0 $0 $1,690 $220 $1,910 2.11 Construct New Change Rooms, Hot Laundry, In-Plant Laydown Areas $0 $829 $0 $0 $829 $108 $937 2.12 Purchase and Install Class B and C Storage Modules for Decommissioning Waste $81 $1,053 $0 $0 $1,134 $148 $1,282 2.13 Finalize Residual Radiation Inventory $67 $6 $0 $0 $73 $9 $82 Distributed Subtotal $16,126 $13,612 $658 $0 $30,396 $5,300 $35,696 Undistributed 2.01 Utility Staff $10,187 $0 $0 $0 $10,187 $1,324 $11,511 2.04 Insurance $0 $0 $0 $233 $233 $35 $268 2.06 Permits $0 $0 $0 $277 $277 $42 $319 2.07 Security Guard Force $391 $0 $0 $0 $391 $59 $450 2.08 Energy $0 $0 $0 $533 $533 $80 $613 2.10 HP Supplies $0 $237 $0 $0 $237 $36 $273 2.11 Supplies and Services $0 $0 $0 $2,008 $2,008 $301 $2,309 Undistributed Subtotal $109578 $237 $0 $3,051 $13,866 $1,877 S15,743 Page 3 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 2 Subtotal $26,704 $13,849 $658 $3,051 $44,262 $7,177 $51,439 Page 4 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 3 Distributed 3.01 Remove Control Rod Drive (CRD) and Reactor Cavity Missile Shields $0 $0 $0 $0 $0 $0 $0 3.02 Remove Vessel Head Insulation, CRD Mechanisms and Cables, Air Ducts and Vessel Head $0 $0 $0 $0 $0 $0 $0 3.03 Reactor Vessel Insulation Removal and Disposal $24 $9 $132 $0 $165 $47 $212 3.04 Reactor Internals Removal and Disposal, Place Class B and C Waste in Interim Storage $1,697 $925 $2,249 $0 $4,871 $1,624 $6,495 3.05 Reactor Vessel Removal $1,092 $1,457 $5,959 $0 $8,508 $2,371 $10,879 3.06 Decontaminate and Remove NonEssential Systems $3,113 $332 $6,666 $0 $10,111 $2,326 $12,437 3.07 Remove, Decon, Dispose of Steam Generators, Place Class B Waste in Interim Storage $1,680 $1,706 $8,431 $0 $11,817 $2,718 $14,535 3.08 Remove, Ship and Bury Pressurizer $345 $395 $1,777 $0 $2,517 $579 $3,096 3.09 Decontaminate and Remove Essential Systems $4,505 $1,147 $2,631 $0 $8,283 $1,905 $10,188 Distributed Subtotal $12,456 $5,971 $27,845 $0 $46,272 $11,570 $57,842 Undistributed 2.01 Utility Staff $27,980 $0 $0 $0 $27,980 $3,637 $31,617 2.04 Insurance $0 $0 $0 $700 $700 $105 $805 2.06 Permits $0 $0 $0 $1,019 $1,019 $153 $1,172 2.07 Security Guard Force $1,174 $0 $0 $0 $1,174 $176 $1,350 2.08 Energy $0 $0 $0 $1,488 $1,488 $223 $1,711 2.10 HP Supplies $0 $1,349 $0 $0 $1,349 $202 $1,551 2.11 Supplies and Services $0 $0 $0 $5,511 $5,511 $827 $6,338 2.13 Severance $6,850 $0 $0 $0 $6,850 $1,028 $7,878 Undistributed Subtotal $36,004 $1,349 $0 $8,718 $46,071 $6,351 $52,422 Decon Pd 3 Subtotal $48,460 $7,320 $27,845 $8,718 $92,343 $17,921 $110,264 Page 5 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 4a Distributed 4.01 , Decon Containment Building $1,449 $831 $9,251 $0 $11,531 $2,652 $14,183 4.07 Radiologically Contaminated Soil Remediation $30 $376 $6,314 $0 $6,720 $1,546 $8,266 4.11 Contaminated Roof Disposal $38 $6 $417 $0 $461 $106 $567 Distributed Subtotal $1,517 $1,213 $15,982 $0 $18,712 $4,304 $23,016 Undistributed 2.01 Utility Staff $6,408 $0 $0 $0 $6,408 $833 $7,241 2.04 Insurance $0 $0 $0 $216 $216 $32 $248 2.06 Permits $0 $0 $0 $314 $314 $47 $361 2.07 Security Guard Force $362 $0 $0 $0 $362 $54 $416 2.08 Energy $0 $0 $0 $306 $306 $46 $352 2.10 HP Supplies $0 $392 $0 $0 $392 $59 $451 2.11 Supplies and Services $0 $0 $0 $1,286 $1,286 $193 $1,479 2.13 Severance $4,987 $0 $0 $0 $4,987 $748 $5,735 Undistributed Subtotal $11,757 $392 $0 $2,122 $14,271 $2,012 $16,283 Decon Pd 4a Subtotal $13,274 $1,605 $15,982 $2,122 $32,983 $6,316 $39,299 Page 6 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 4b Undistributed 2.01 Utility Staff $3,054 $0 $0 $0 $3,054 $397 $3,451 2.04 Insurance $0 $0 $0 $1,116 $1,116 $167 $1,283 2.06 Permits $0 $0 $0 $1,032 $1,032 $155 $1,187 2.07 Security Guard Force $935 $0 $0 $0 $935 $140 $1,075 2.08 Energy $0 $0 $0 $188 $188 $28 $216 2.10 H? Supplies $0 $148 $0 $0 $148 $22 $170 2.11 Supplies and Services $0 $0 $0 $779 $779 $117 $896 2.13 Severance $10,131 $0 $0 $0 $10,131 $1,520 $11,651 Undistributed Subtotal $14,120 $148 $0 $3,115 $17,383 $2,546 $19,929 Decon Pd 4b Subtotal $14,120 $148 $0 $3,115 $17,383 $2,546 $19,929 Page 7 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 4c Distributed 4.02 Decon Fuel Handling Building $729 $561 $807 $0 $2,097 $482 $2,579 4.03 Decon Auxilary Building $107 $162 $247 $0 $516 $119 $635 4.04 Decon Technical Support Building $16 $25 $22 $0 $63 $14 $77 4.05 Decon Decontamination Building $7 $4 $22 $0 $33 $7 $40 4.06 Remove Spent Fuel Storage Racks $1,048 $838 $1,467 $0 $3,353 $771 $4,124 4.10 MARSSIM FSS for Structures $2,984 $673 $0 $323 $3,980 $517 $4,497 4.11 MARSSIM FSS for Land Areas $4,307 $379 $0 $0 $4,686 $609 $5,295 4.12 Prepare final report of dismantling program $67 $1 $0 $0 $68 $9 $77 Distributed Subtotal $9,265 $2,643 $2,565 $323 $14,796 $2,528 $17,324 Undistributed 2.01 Utility Staff $6,733 $0 $0 $0 $6,733 $875 $7,608 2.04 Insurance $0 $0 $0 $413 $413 $62 $475 2.06 Permits $0 $0 $0 $492 $492 $74 $566 2.07 Security Guard Force $692 $0 $0 $0 $692 $104 $796 2.08 Energy $0 $0 $0 $205 $205 $31 $236 2.10 HP Supplies $0 $247 $0 $0 $247 $37 $284 2.11 Supplies and Services $0 $0 $0 $1,385 $1,385 $208 $1,593 2.13 Severance $4,014 $0 $0 $0 $4,014 $602 $4,616 Undistributed Subtotal $11,439 $247 $0 $2,495 $14,181 $1,993 $16,174 Decon Pd 4c Subtotal $20,704 $2,890 $2,565 $2,818 $28,977 $4,521 $33,498 Page 8 of 16

Scenario -2 4, Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Decon Pd 4d Distributed 4.01 Disposition Class B and C Operational Waste In Interim Storage $144 $315 $1,369 $0 $1,828 $420 $2,248 4.02 Disposition Class B and C Decommissioning Waste In Interim Storage $361 $788 $14,172 $0 $15,321 $3,524 $18,845 4.03 Interim Class B and C Storage Facility License Termination $166 $24 $0 $244 $434 $56 $490 Distributed Subtotal $671 $1,127 $15,541 $244 $17,583 $4,000 $21,583 Decon Pd 4d Subtotal $671 $1,127 $15,541 $244 $17,583 $4,000 $21,583 Page 9 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total A. License Termination Subtotal $203,060 $27,903 $62,591 $31,801 $325,355 $55,268 $380,623 B. Spent Fuel Dry Pd 1 Distributed 1.01 Design Spent Fuel Support System Modifications $361 $5 $0 $0 $366 $48 $414 1.02 Design Control Room Relocation $346 $4 $0 $0 $350 $46 $396 1.03 Design Spent Fuel Storage Security Modifications $272 $3 $0 $0 $275 $36 $311 2.01 Install Spent Fuel Pool System Modifications $150 $1,698 $0 $0 $1,848 $240 $2,088 2.02 Implement Control Room Modifications $1,070 $1,605 $0 $0 $2,675 $348 $3,023 2.03 Implement Spent Fuel Pool Security Modifications $560 $839 $0 $0 $1,399 $182 $1,581 Distributed Subtotal $2,759 $4,154 $0 $0 $6,913 $900 $7,813 Undistributed 2.01 Utility Spent Fuel Staff $867 $0 $0 $0 $867 $113 $980 2.03 Fuel Pool Maintenance and Operation Staff $4,018 $0 $0 $0 $4,018 $603 $4,621 2.06 Insurance $0 $0 $0 $1,129 $1,129 $169 $1,298 2.07 Permits $0 $0 $0 $2,174 $2,174 $326 $2,500 2.08 Security Guard Force $4,030 $0 $0 $0 $4,030 $604 $4,634 2.09 Spent Fuel Maintenance $0 $0 $0 $287 $287 $43 $330 2.10 Energy $0 $0 $0 $411 $411 $62 $473 2.11 Supplies and Services $0 $0 $0 $4 $4 $1 $5 2.12 HP Supplies $0 $140 $0 $0 $140 $21 $161 Undistributed Subtotal $8,915 $140 $0 $4,005 $13,060 $1,942 $15,002 Dry Pd 1 Subtotal $11,674 $4,294 $0 $4,005 $19,973 $2,842 $22,815 Page 10 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Dry Pd 2 Distributed 2.04 NRC Review and Approval of 10 CFR Part 72 License Application $0 $0 $0 $459 $459 $60 $519 2.05 Purchase of Dry Storage Modules for Fuel Assemblies $0 $38,744 $0 $0 $38,744 $8,911 $47,655 2.06 Purchase of Dry Storage Modules for GTCC Waste $0 $1,174 $0 $0 $1,174 $270 $1,444 2.07 Construct ISFSI Phase 2 Concrete Pad and Approach Apron $370 $402 $0 $0 $772 $100 $872 Distributed Subtotal $370 $40,320 $0 $459 $41,149 $9,341 $50,490 Undistributed 2.01 Utility Spent Fuel Staff $3,870 $0 $0 $0 $3,870 $503 $4,373 2.03 Fuel Pool Maintenance and Operation Staff $17,934 $0 $0 $0 $17,934 $2,690 $20,624 2.06 Insurance $0 $0 $0 $5,038 $5,038 $756 $5,794 2.07 Permits $0 $0 $0 $9,704 $9,704 $1,456 $11,160 2.08 Security Guard Force $17,988 $0 $0 $0 $17,988 $2,698 $20,686 2.09 Spent Fuel Maintenance $0 $0 $0 $1,280 $1,280 $192 $1,472 2.10 Energy $0 $0 $0 $1,832 $1,832 $275 $2,107 2.11 Supplies and Services $0 $0 $0 $1,714 $1,714 $257 $1,971 2.12 UP Supplies $0 $627 $0 $0 $627 $94 $721 Undistributed Subtotal $39,792 $627 $0 $19,568 $59,987 $8,921 $68,908 Dry Pd 2 Subtotal $40,162 $40,947 $0 $20,027 $101,136 $18,262 $119,398 Page 11 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number' 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Dry Pd 3 Distributed 3.01 NRC Review and Approval of 10 CFR Part 72 License Renewal $0 $0 $0 $459 $459 $60 $519 3.02 Pieparation and NRC Review of License Termination Plan $61 $0 $0 $107 $168 $30 $198 3.03 Verification Survey of Horizontal Storage Modules $46 $24 $0 $0 $70 $9 $79 3.04 Preparation of Final Report on Decommissioning and NRC Review $61 $0 $0 $107 $168 $22 $190 Distributed Subtotal $168 $24 $0 $673 $865 $121 $986 Undistributed 2.01 Utility Spent Fuel Staff $46,717 $0 $0 $0 $46,717 $6,073 $52,790 2:04 Additional Staff for Spent Fuel Shipping $5,734 $0 $0 $0 $5,734 $745 $6,479 2.06 Insurance $0 $0 $0 $20,290 $20,290 $3,043 $23,333 2.07 Permits $0 $0 $0 $16,989 $16,989 $2,548 $19,537 2.08 Security Guard Force $46,202 $0 $0 $0 $46,202 $6,930 $53,132 2.09 Spent Fuel Maintenance $0 $0 $0 $2,466 $2,466 $370 $2,836 2.10 Energy $0 $0 $0 $3,971 $3,971 $596 $4,567 2.11 Supplies and Services $0 $0 $0 $4,240 $4,240 $636 $4,876 2.12 HP Supplies $0 $1,754 $0 $0 $1,754 $263 $2,017 2.14 Severance $3,008 $0 $0 $0 $3,008 $451 $3,459 Undistributed Subtotal $101,661 $1,754 $0 $47,956 $151,371 $21,655 $173,026 Dry Pd 3 Subtotal $101,829 $1,778 $0 $48,629 $152,236 $21,776 $174,012 Page 12 of 16

Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Dry Pd 4 Distributed 4.01 Demolition of ISFSI Support Structures $490 $158 $66 $0 $714 $109 $823 4.02 Clean Demolition of ISFSI $1,051 $436 $683 $0 $2,170 $326 $2,496 4.02 Demolition and Disposal of Class B and C Storage Modules $92 $33 $121 $0 $246 $35 $281 Distributed Subtotal $1,633 $627 $870 $0 $3,130 $470 $3,600 Undistributed 2.01 Utility Spent Fuel Staff $282 $0 $0 $0 $282 $37 $319 2.07 Permits $0 $0 $0 $7 $7 $1 $8 2.08 Security Guard Force $108 $0 $0 $0 $108 $16 $124 2.10 Energy $0 $0 $0 $12 $12 $2 $14 2.11 - Supplies and Services $0 $0 $0 $15 $15 $2 $17 2.12 HP Supplies $0 $14 $0 $0 $14 $2 $16 2.14 Severance $1,806 $0 $0 $0 $1,806 $271 $2,077 Undistributed Subtotal $2,196 $14 $0 $34 $2,244 $331 $2,575 Dry Pd 4 Subtotal $3,829 $641 $870 $34 $5,374 $801 $6,175 Page 13 of 16

Scenario -2 a--

Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit I Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems- Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total B. Spent Fuel Subtotal $157,494 $47,660 $870 $72,695 $278,719 $43,681 $322,400 C. Greenfield Grn Pd 1 Distributed 1.01 Demolish Containment Building $1,800 $387 $198 $0 $2,385 $349 $2,734 1.02 Demolish Turbine Building $950 $268 $52 $0 $1,270 $192 $1,462 1.03 Demolish Auxilary Building $871 $287 $152 $0 $1,310 $199 $1,509 1.04 Demolish Fuel Handling Building $418 $147 $76 $0 $641 $98 $739 1.05 Demolish Decontamination Building $21 $6 $1 $0 $28 $4 $32 1.06 Demolish Steam Generator Storage Building $35 $10 $2 $0 $47 $7 $54 1.07 Demolish Non-Essential Structures $1,344 $1,377 $143 $0 $2,864 $510 $3,374 1.08 Clean Building Demolition Equipment $0 $627 $0 $0 $627 $144 $771 2.02 Remove temporary structures $29 $23 $0 $0 $52 $9 $61 Distributed Subtotal $5,468 $3,132 $624 $0 $9,224 $1,512 $10,736 Undistributed 2.01 Utility Staff $3,913 $0 $0 $0 $3,913 $509 $4,422 2.06 Securit-) Guard Force $362 $0 $0 $0 $362 $54 $416 2.07 Energy $0 $0 $0 $127 $127 $19 $146 Undistributed Subtotal $4,275 so soU $127 $4,402 $582 $4,984 Grn Pd 1 Subtotal $9,743 $3,132 $624 $127 $13,626 $2,094 $15,720 Page 14 of 16

Scenario -2 4-4 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative

  • Dry Repository Opening Date: i/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total Grn Pd 2 Distributed 2.01 Site Restoration Equipment $0 $41 $0 $0 $41 $9 $50 2.03 Backfill and grade $339 $247 $0 $0 $586 $101 $687 Distributed Subtotal $339 $288 $0 $0 $627 $110 $737 Undistributed 2.01 Utility Staff $352 $0 $0 $0 $352 $46 $398 2.06 Security Guard Force $48 $0 $0 $0 $48 $7 $55 2.07 Energy $0 $0 $0 $13 $13 $2 $15 2.08 Severance $3,938 $0 $0 $0 $3,938 $591 $4,529 Undistributed Subtotal $4,338 $0 $0 $13 $4,351 $646 $4,997 Grn Pd 2 Subtotal $4,677 $288 $0 $13 $4,978 $756 $5,734 Page 15 of 16

ý v.A-Scenario -2 Kewaunee Power Station Detailed Cost Report Scenario Number 2 License Status Existing Unit 1 Shut Down Date 12/21/2013 Decommissioning Alternative Decon Fuel Pool Systems Modified Spent Fuel Alternative Dry Repository Opening Date: 1/1/2020 2008 Dollars in Thousands No Item Description Labor Equipment Waste Other Subtotal Contingency Total C. Greenfield Subtotal $14,420 $3,420 $624 $140 $18,604 $2,850 $21,454 Scenario No. 2 Total $374,974 $78,983 $64,085 $104,636 $622,678 $101,799 $724,477 Page 16 of 16

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Decommissioning Cost Estimate Study of the Document No. 82A9584 Kewaunee Nuclear Power Plant Revision 0 Addendum No. 001 Appendix D Updated Annual Cash Flow Table 9

V J Kewaunee Power Station Annual Cost By Account ScenarioNo 2 Unit No: Unit 1 Dollars in Thousands Year License Termination Spent Fuel Greenfield Contingency Total 2013 $1,401 $468 $0 $262 $2,131 2014 $46,485 $15,544 $0 $8,685 $70,714 2015 $48,830 $17,171 $0 $9,861 $75,862 2016 $71,503 $17,675 $0 $15,811 $104,989 2017 $59,236 $17,675 $0 $14,687 $91,598 2018 $37,506 $17,675 $0 $10,216 $65,397 2019 $7,003 $17,675 $0 $4,217 $28,895 2020 $7,779 $17,383 $0 $4,281 $29,443 2021 $28,028 $5,181 $1,327 $5,318 $39,854 2022 $0 $5,181 $11,814 $2,557 $19,551 202j $0 $5,181 $5,463 $1,572 $12,216 2024 $0 $5,181 $0 $741 $5,922 2025 $9,623 $5,181 $0 -$2,930 $17,735 2026 $7,960 $5,181 $0 $2,552 $15,692 2027 $0 $5,181 $0 $741 $5,922 2028 $0 $5,181 $0 $741 $5,922 2029 $0 $5,181 $0 $741 $5,922 2030 $0 $5,181 $0 $741 $5,922 2031 $0 $5,181 $0 $741 $5,922 2032 $0 $5,181 $0 $741 $5,922 2033 $0 $5,181 $0 $741 $5,922 2034 $0' $5,181 $0 $741 $5,922 2035 $0 $5,181 $0 $741 $5,922 2036 $0 $5,181 $0 $741 $5,922 2037 $0 $5,181 $0 $741 $5,922 2038 $0 $5,181 $0 $741 $5,922 2039 $0 $5,181 $0 $741 $5,922 2040 $0 $5,181 $0 $741 $5,922 2041 $0 $5,181 $0 $741 $5,922 2042 $0 $5,181 $0 $741 $5,922 2043 $0 $5,181- $0 $741 $5,922 2044 $0 $5,181 $0 $741 $5,922 2045 $0 $5,181 $0 $741 $5,922 2046 $0 $5,181 $0 ,$741 $5,922 2047 $0 $5,181 $0 $741 $5,922 2048 $0 $5,181 $0 $741 $5,922 2049 $0 $5,181 $0 $74i $5,922 2050 $0 $7,204 $0 $1,063 $8,267 Total $325,355 $278,719 $18,604 $101,799 $724,477

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