NG-21-0006, 2021 Annual Decommissioning and Spent Fuel Management Funding Status Report

2021 Annual Decommissioning and Spent Fuel Management Funding Status Report

ML21090A232
Person / Time
Site:	Duane Arnold, Maine Yankee
Issue date:	03/31/2021
From:	Hansen P NextEra Energy Duane Arnold
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
NG-21-0006
Download: ML21090A232 (11)

Text

EXTeraM ENERGY~

DUANE ARNOLD NG-21 -0006 March 31, 2021 10 CFR 50.75(f) (1) 10 CFR 50.82(a)(8)(v)

Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Duane Arnold Energy Center Docket No. 50-331 Renewed Facility Operating License No DPR-49 Duane Arn old Energy Center Independent Spent Fuel Storage Installation NRC Docket No.72-030

Subject:

Duane Arn old Energy Center, 2021 Annual Decommissioning and Spent Fuel Management Funding Status Report

References:

1) Letter, Curtland (NEDA) to U.S. NRC, "Certification of Permanent Cessation of Power Operations ," NG-20-0074, dated August 27, 2020 (M L20240A067)

2) Letter, Curtland (NEDA) to U. S. NRC, "Certification of Permanent Removal of Fuel from the Reactor Vessel for Duane Arnold Energy Center," NG-20-0090, dated October 12, 2020 (M L20286A317)

3) Letter, Curtland (NEDA) to U. S. NRC, "Post Shutdown Decommission ing Activities Report," NG-20-0027, dated April 2, 2020 (M L20094F603)

4) Letter, Hansen (NEDA) to U. S. NRC, "Update to Spent Fuel Management Plan Pursuant to 10 CFR 50.54(bb)," NG-20-0078, dated January 13, 2021 (M L21014A455)

5) Letter, Wall (NRC) to D. Moul (NEDA), "Duane Arnold Energy Center - Request for Exemption from 10 CFR 50.82(a)(8)(i)(A) and Section 75(h)(1 )(iv), " dated August 12, 2020 (M L20171A627 , ML20171A626)

In accordance with 10 CFR 50. 75(f)(1), 10 CFR 50.82(a)(8)(v), and 10 CFR 50.82(a)(8)(vii),

NextEra Energy Duane Arnold, LLC (NEDA) submits the annual status of decommissioning fund ing, status of fund ing for managing irradiated fue l, and the financial assurance status report for the Duane Arnold Energy Center (DAEC).

In References 1 and 2, DAEC certified permanent cessation of power operation and permanent removal of fuel from the reactor vessel for DAEC. In Reference 3, DAEC subm itted its Post-Shutdown Decommissioning Activities Report (PSDAR) containing a site-specific Decommissioning Cost Estim ate (DCE) pursuant to 10 CFR 50.82(a)(4)(i) and 10 CFR 50.82(a)(8)(iii). In Reference 4, NEDA subm itted a spent fuel management plan pursuant to 10 CFR 50.54(bb). In Reference 5, the NRC granted an exemption allowing NEDA to fund spent fuel management and site restoration costs from its Nuclear Decommissioning Trust.

NextEra Energy Duane Arno ld, LLC, 3277 DAEC Road, Palo, IA 52324

NextEra Duane Arnold, LLC I Duane Arnold Energy Center NG-21-0006 2 of2 Michael Decommissioning Director, Arnold,

Enclosure:

stated cc: Regional Administrator, USNRC, Region Ill Project Manager, USNRC, Duane Arnold Energy Center Inspector, USNRC, Duane Arnold Energy Center A. Leek (State of Iowa)

10 50.75(f)(l) and 10 reports the following information:

by 10 completed a site-specific Decommissioning Estimate (DCE), prepared by Energy Solutions study was performed using the decommissioning method. The included anticipated to be for license termination activities (radiological remediation), interim spent storage, and non-radiological site restoration activities. Based on the (completed with 2018 data, revised January 2020), the total estimated cost to decommission DAEC is

$1,053,648,389 (2020 dollars). Of that total cost estimate, the current site-specific cost estimate for license termination expenses of Duane Arnold Energy Center is

$746,953,354. The current estimate of spent fuel management costs is $267,437,848.

The current estimate for non-radiological site restoration is $37,566,800. The current estimate of Independent Spent Fuel Storage Installation (ISFSI) demolition and decommissioning (D&D) costs is $1,690,387. 1 Funding Balance for License Termination Because DAEC is jointly owned among NextEra Energy Duane Arnold, LLC (NEDA),

Central Iowa Power Cooperative (CIPCO), and Com Belt Power Cooperative (Corn Belt), each Joint Owner (NEDA, CIPCO, and Corn Belt) maintains nuclear decommissioning trust(s) respective to their undivided interest ownership share.

The total balance available in NRC-jurisdictional nuclear decommissioning trusts (NDTs) for DAEC as of December 31, 2020 was $632,821,768, broken out as follows Trust Balance as of 12/31/20 Licensee

($Thousands) 505,832 Duane Arnold - NextEra Duane Arnold - CIPCO 84,633 Duane Arnold - Corn Belt 42,357 1

For reference, the NRC minimum decommissioning cost calculated per 10 CFR 50.75(c) is $606,136,966.

This value is not used for any evaluations herein.

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funds set aside for decommissioning, and Com also maintain funds for spent fuel management and site restoration activities.

accordance with the exemption granted by the on August 12, 2020 (Reference withdrawals from are used for decommissioning, spent fuel management did not seek an exemption to allow use of their fuel management activities. CIPCO and Com Belt are not-for-profit electric cooperatives. CIPCO and Com Belt maintain internal supplemental reserve funds, outside of their NDTs, the use of which are not legally restricted like an NDT, for asset retirement and other purposes. These funds are sufficient to pay for spent fuel management and may be supplemented by operational income, if necessary. The CIPCO and Com Belt supplemental funds are not commingled with the NDTs used for license termination costs, and these funds are not included as funds for satisfying NRC minimum license termination obligations. An additional potential source of supplemental funding for spent fuel management costs for CIPCO and Com Belt is the Settlement Agreement, under which the United States Government has agreed to reimburse Duane Arnold for costs incurred attributable to DOE's failure to meet its contractual obligations for the transfer of spent fuel from DAEC.

D. Annual Decommissioning Collections There were no annual collections for 2020 and no collections anticipated.

E. Rates Used to Escalate Decommissioning Costs and Fund Balances The estimates in the 2018 DCE have been inflated to 2020 dollars in the estimates provided in Attachments B - C. The Bureau of Labor Statistics (BLS) data provided the basis for the decommissioning cost estimate inflation rate forecast. Decommissioning costs are inflated using average observed data for Consumer Price Index, for All-Urban Consumers. DAEC used a factor of 1.8% to escalate 2018 dollars to 2019 dollars and 1.2% to escalate 2019 dollars to 2020 dollars.

Anticipated NEDA, CIPCO, and Corn Belt NDT and supplemental fund balances incorporate a 2% annual real rate of return, consistent with the requirements of 10 CFR 50.75.

cuffent detailed site-specific decommissioning cost estimate is $1,690,000 (escalated to 2020 dollars). The table below summarizes data presented in Attachments 1, C-2 and, and demonstrates that adequate funding will remain following the decommissioning of the site to cover future costs (10 CFR 72.30).

Trnst Fund ISFSI Trnst Balance as of 12/31/20 Balance After Licensee Cost Estimate Decommissioning Duane Arnold -

NextEra 505,832 365,527 1, 183 Duane Arnold -

CIPCO 84,633 64,054 338 Duane Arnold -

Corn Belt 42,357 36,560 169 None.

H. Modification to Method of Providing Financial Assurance None.

I. Material Changes to Trust Agreements In accordance with the exemption granted by NRC on August 12, 2020, NEDA amended its NDT to authorize withdrawals for spent fuel management and non-radiological site restoration purposes. See Letter from Curtland (NEDA) to U.S. NRC, Notice Regarding Proposed Amendment to Decommissioning Trust Agreements," NG-20-0073, dated September 1, 2020.

provides the amount spent on decommissioning, both cumulative and over the previous calendar year, the remaining balance of any decommissioning funds, an estimate of the costs to complete decommissioning work performed during the year, reflecting any difference between actual and estimated costs, satisfaction of 10 50.82(a)(8)(v). Attachment also provides the projected costs of managing spent fuel and the amount of funds accumulated to cover cost in satisfaction 10 50.82(a)(8)(vii).

Attachment B provides the projected escalated to 2020 dollars. compares the NEDA NDT balance, accounting for a 2% real rate of return, against the estimated costs for license termination, spent fuel management, and site restoration costs, demonstrating the NEDA NDT contains sufficient funds to cover license termination (50.82(a)(8)(v)) and spent fuel management (50.82(a)(8)(vii)) costs.

Attachment C-2 compares the CIPCO NDT balance, escalated at a 2% real rate of return, against the estimated costs for license termination, demonstrating the CIPCO NDT contains sufficient funds to cover license termination costs (50.82(a)(8)(v)).

Attachment C-3 compares the Com Belt NDT balance, escalated at a 2% real rate of return, against the estimated costs for license termination, demonstrating the Com Belt NDT contains sufficient funds to cover license termination costs (50.82(a)(8)(v)).

Thus, considering the current NDT balances, anticipated growth in those balances over time, and anticipated future license termination costs, the Joint Owners' trust funds are expected to have adequate funds for completion of license termination activities.

Similarly, considering the NEDA NDT balance and the CIPCO and Com Belt supplemental funds and other sources, the Joint Owners are expected to have adequate funds for spent fuel management activities.

Decommissioning Funding Status Report Duane Arnold Energy Center ATTACHMENT A Summary Information as of December 31, 2020 10 CFR 50.82 (a) (8) (v)-(vii)

Decommissionina Trust Fund Balances 50.751f\11 50.82/a Year Joint Owner Type of Trust Fund Balance Comments 2020 NEDA Decommissioning Trust $ 505,831,776 2020 CIPCO Decommissionina Trust $ 84 632,768 2020 Corn Belt Decommissionina Trust $ 42 357 224 Other Financial Assurance Methods Being Relied Upon 50.75(Q(1)

None Prior Years Decommissionina Exoenditures 50.821all8llv) Al Year License Termination Spent Fuel Site Restoration ISFSI D&D Total Comments 2019 $ 1 816,262 $ 315 054 $ - $ - $ 2, 131,315 2020 $ 14 018,255 $ 20,485,571 $ 698 654 $ - $ 35,202,480 Total $ 15,834,517 $ 20,800,624 $ 698,654 $ - $ 37,333,796 Prior Year Exoenditures Variance to Estimated Cost 50.82 al/8\MIBl Year License Termination Spent Fuel Site Restoration ISFSI D&D Total Comments 2020 Estimated $ 37 293 199 $ 3 426 296 $ - $ - $ 40 719 495 2020 Actual $ 14 018 255 $ 20 485 571 $ 698 654 $ - $ 35 202,480 Variance $ 23,274,944 $ (17,059,275) $ (698,654) $ - $ 5,517,014 See below for variance commentarv Variance Commenta!)(

License Termination: Below estimates due to cost optimization Spent Fuel: Above estimate due to inclusion fo 2020 pool-to-pad campaign as discussed in the Spent Fuel Management Plan; No funds were withdrawn through year end 2020 to support the 2020 campaign Site Restoration: Above estimated due to storm recovery and cost schedule optimization Accruals are reflected in total costs but not in reimbursements Cumulative Withdrawals from Decommissionina Trusts 50.821a\18\MIA\

Year Joint Owner License Termination Spent Fuel Site Restoration ISFSI D&D Total Comments Throuah 12131/2020 NEDA $ 4,860,250 $ - $ - $ - $ 4,860,250 No Spent Fuel or Site Restoration withdrawals through 2020 Throuah 12131/2020 CIPCO $ - $ -

Through 12/31/2020 Corn Belt $ 1,367,391 $ - $ 1,367,391 -1 Total Through 2020 $ 6,227,642 $

Remain in!'.! Decommissionim:1 Estimated Cost 50.82(a)(8)(v)(B) l{viilCBl

- $ - $ - $ 6,227,642 Year License Termination Spent Fuel Site Restoration ISFSI D&D Total Comments 2020 $ $ 705,435,417 $ 263, 771,279 $ 37,566,411 $ 1,690,599 $ 1,008,463,706 Remaining decom costs from 2021 - 2080 escalated to 2020 $

ATTACHMENT Duane Am old Energy Center Decommissioning Cost Estimate (100% Share)

Estimates in 2020 Dollars (Thousands)

Year License .

Terml!l~t\on

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Site Restoration ISFSIP&D Total 2021 45,079 19,692 - - 64,771 2022 16,439 59,314 - - 75,753 2023 5,267 52,474 - 57,741 2024 15,353 3,321 - - 18,674 2025 5,776 3,332 - - 9,109 2026 2,268 3,332 - - 5,601 2027 1,883 3,332 - - 5,216 2028 1,883 3,332 - - 5.216 2029 1,883 3,332 - - 5,216 2030

+/-:=:tl42 3,332 - - 5,274 2031 24 3,332 - - 5,157 2032 1,824 3,612 - - 5,436 2033 1,824 3,615 - - 5,439 2034 1,824 3,615 - - 5,439 2035 1,824 3,615 - - 5,439 2036 1,824 3 615 - - 5,439 2037 1,824 3,615 - - 5,439 2038 1,824 3,615 - - 5,439 2039 1,824 3,615 - - 5,439 2040 2,485 3,615 - - 6,100 2041 1,824 3,615 - I - 5,439 2042 1,824 3,615 - - 5,439 2043 1,824 3,615 - - 5,439 2044 1,824 3,615 - - 5,439 2045 1,824 3,615 - - 5,439 2046 1,824 3,615 - - 5,439 2047 1,824 3,615 - - 5,439 2048 1,824 3,615 - - 5,439 2049 1,824 3,615 - - 5,439 2050 1,824 3,615 - - 5,439 2051 1 824 3,615 - - 5,439 2052 1,824 3,615 - - 5,439 2053 1,824 3,615 - - 5,439 2054 2,118 3,615 - - 5,733 2055 2,192 3,615 - - 5,806 2056 1,824 3 615 - - 5,439 2057 1,824 3,615 - - 5,439 2058 1,824 3615 - - 5,439 2059 2,226 2,999 - - 5,225 2060 3,172 - - - 3,172 2061 2,715 - - - 2,715 2062 2,715 - - - 2,715 2063 2,715 - - - 2 715 2064 2,715 - - - 2,715 2065 2,715 - - - 2,715 2066 2,715 - - - 2,715 2067 2 715 - - - 2,715 2068 2 715 - - - 2,715 2069 2,715 - - - 2,715 2070 2,715 - - - 2,715 2071 2,715 - - - 2,715 2072 2 715 - - - 2 715 2073 15 914 - - - 15,914 2074 33 610 - - - 33,610 2075 80,599 - - 190 80,789 2076 96,889 - - 415 97,304 2077 121,995 26 - 313 122,334 2078 104,157 5 022 6403 753 116,335 2079 59,148 - 28 667 20 87 835 2080 4,977 - 2,496 - 7,473 Total 705,435 263,771 37,566 1,691 1,008,464

ATTACHMENT C-1 Nex!Era Energy Duane Arnold, LLC (70% Share)

License Termination (50.B2(a)(8)(v))

Spent Fuel (50.B2(a)(8)(vii))

Estimates in 2020 Dollars (Thousands) I Balance with 2% Real Rate of Return NEDA Ownership I Balance 70% 505,832 Annual Fund Earnings 2 Oo/,0 NextEra 70%Share of Costs Eligible from De com Trust

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I> .* A B c =A+B+C 15 Rnonl <'>fol

• I ~.. ~ o"~' * .'.;;,~~.

IElFSIO&O .* Total Beginning of Year Balance Withdrawls Annual NDT Earnings End of Year NDT Balance 13.785 505,832 (66,613 10,117 449,336 2022 11,507 41,520 53,027 449,336 (53,027) 8,987 405,295 2023 3,687 36,732 40,419 405,295 (40,419) 8,106 372,982 2024 10,747 2,325 13,072 372,982 (13,072) 7,460 367,370 2025 4,044 2,333 6,376 367,370 (6,376) 7,347 368,341 2026 1,588 2,333 3,921 368,341 (3,921) 7,367 371,788 2027 1,318 2,333 3,651 371,788 (3,651) 7,436 375,572 2028 1,318 2,333 3,651 375,572 (3,651) 7,511 379,433 2029 1,318 2,333 3,651 379,433 (3,6511 7,589 383,371 2030 1,359 2,333 3,692 383,371 (3,692) 7,667 387,346 2031 1,277 2,333 3,610 387,346 (3,6101 7,747 391,483 2032 1,277 2,528 3,805 391,483 (3,8051 7,830 395,508 2033 1,277 2,530 3,807 395,508 (3,807) 7,910 399,611 2034 1,277 2,530 3,807 399,611 (3,807) 7,992 403,796 2035 1,277 2,530 3,807 403,796 (3,807) 8,076 408,064 2036 1,277 2,530 3,807 408,064 (3,807) 8,161 412,418 2037 1,277 2,530 3,807 412,418 (3,807) 8,248 416,859 2038 1,277 2,530 3,807 416,859 (3,807) 8,337 421,389 2039 1,277 2,530 3,807 421,389 (3,807) 8,428 426,010 2040 1,740 2,530 4,270 426,010 (4,270) 8,520 430,260 2041 1,277 2,530 3,807 430,260 {3,807) 8,605 435,058 2042 1,277 2,530 3,807 435,058 (3,807 8,701 439,952 2043 1,277 2,530 3,807 439,952 (3,807) 8,799 444,943 2044 1,277 2,530 3,807 444,943 (3,807) 8,899 450,035 2045 1,277 2,530 3,807 450,035 (3,807) 9,001 455,228 2046 1,277 2,530 3,807 455,228 (3,807) 9,105 460,526 2047 1,277 2,530 3,807 460,526 (3,807) 9,211 465,929 2048 1,277 2,530 3,807 465,929 (3,807 9,319 471,440 2049 1,277 2,530 3,807 471.440 (3,807) 9,429 477,062 2050 1,277 2,530 3,807 477,062 (3,807) 9,541 482,796 2051 1,277 2,530 3,807 482,796 (3,807 9,656 488,644 2052 1,277 2,530 3,807 488,644 (3,807 9,773 494,610 2053 1,277 2,530 3,807 494,610 (3,807) 9,892 500,695 2054 1,483 2,530 4,013 500,695 (4,013 10,014 506,696 2055 1,534 2,530 4,064 506,696 {4,064 10,134 512,765 2056 1,277 2,530 3,807 512,765 (3,807) 10,255 519,213 2057 1,277 2,530 3,807 519,213 (3,807) 10,384 525,790 2058 1,277 2,530 3,807 525,790 (3,807) 10,516 532,499 2059 1,558 2,099 3,657 532,499 (3,657) 10,650 539,491 2060 2,220 2,220 539,491 (2,220) 10,790 548,061 2061 1,900 1,900 548,061 (1,900 10,961 557, 122 2062 1,900 1,900 557, 122 (1,900) 11,142 566,364 2063 1,900 1,900 566,364 (1,900) 11,327 575,791 2064 1,900 1,900 575,791 (1,900 11,516 585,407

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1,900 1,900 585,407 (1,900 11,708 595,215 1,900 1,900 595,215 (1,900) 11,904 605,219 1,900 1,900 605,219 (1,900) 12104 615,423 2068 1,900 1,900 615,423 (1,900 12,308 625,831 2069 1,900 1,900 625,831 (1,900) 12,517 636,448 2070 1,900 1,900 636,448 (1,900) 12,729 647,277 2071 1,900 1,900 647,277 (1,9001 12,946 658,322 2072 1,900 1,900 658,322 (1,900) 13,166 669,588 2073 11,140 11,140 669,588 (11,140) 13,392 671,840 2074 23,527 23,527 671,840 (23,527) 13,437 661,750 2075 56,419 133 56,552 661,750 (56,552) 13,235 618,433 2076 67,822 291 68,113 618,433 (68,113) 12,369 562,688 2077 85,397 18 219 85,634 562,688 (85,634) 11,254 488,308 2078 72,910 3,516 4,482 527 81,435 488,308 (81,435) 9,766 416,640 2079 41,404 20,067 14 61,485 416,640 (61,485) 8,333 363,488 2080 3,484 1,747 5,231 363,488 (5,231) 7,270 365,527 Total 493,805 184,640 26,296 1,183 705,925 2

2021 NDT withdrawal includes $21,273 of expenses that were not reimbursed during prior periods

ATTACHMENT C-2 CIPCO (20% Share)

License Termination (50.82(a)(8)(v))

Estimates in 2020 Dollars (Thousands) I Balance with 2% Real Rate of Return CIPCO Ownership I Balance 20% $ 84,633 Annual Fund Earnings 20%

• . ~ Lie~!'*:~ >

. CIPCO 20% Share of Costs Eligible from De com Trust Total A B c =A+B+C Beginning of Annual NOT End of Year NDT

'.*:*.;*****"* [5 Withdrawls Year Year Balance Earnings Balance 131 i 2021 9,016 9,016 84,633 (12, 183) 1,693 74,143 2022 3,288 3,288 74,143 (3,288) 1,483 72,338 2023 1,053 1,053 72,338 (1,053) 1,447 72,731 2024 3,071 3,071 72,731 (3,071 1,455 71,115 2025 1,155 1,155 71,115 (1,155) 1,422 71,382 2026 454 454 71,382 (454) 1,428 72,356 2027 377 377 72,356 (377) 1,447 73,427 2028 377 377 73,427 (377) 1,469 74,519 2029 377 377 74,519 (377) 1,490 75,632 2030 388 388 75,632 1388) 1,513 76,757 2031 365 365 76,757 (365) 1,535 77,927 2032 365 365 77,927 (365 1,559 79,121 2033 365 365 79,121 (365) 1,582 80,338 2034 365 365 80,338 (365) 1,607 81,580 2035 365 365 81,580 (365) 1,632 82,847 2036 365 365 82,847 1365 1,657 84,139 2037 365 365 84,139 (365) 1,683 85,457 2038 365 365 85,457 (365) 1,709 86,801 2039 365 365 86,801 (365) 1,736 88,172 2040 497 497 88,172 (497 1,763 89,439 2041 365 365 89,439 (365) 1,789 90,863 2042 365 365 90,863 (365 1,817 92,315 2043 365 365 92,315 (365) 1,846 93,797 2044 365 365 93,797 1365 1,876 95,308 2045 365 365 95,308 (365) 1,906 96,849 2046 365 365 96,849 1365) 1,937 98,421 2047 365 365 98,421 (365) 1,968 100,025 2048 365 365 100,025 (365) 2,000 101,660 2049 365 365 101,660 (365) 2,033 103,329 2050 365 365 103,329 (365) 2,067 105,030 2051 365 365 105,030 (365) 2, 101 106,766 2052 365 365 106,766 (365' 2, 135 108,537 2053 365 365 108,537 (365) 2, 171 110,343 2054 424 424 110,343 (424) 2,207 112, 126 2055 438 438 112,126 (438 2,243 113,930 2056 365 365 113,930 (365 2,279 115,844 2057 365 365 115,844 (365 2,317 117,796 2058 365 365 117,796 (365) 2,356 119,787 2059 445 445 119,787 (445 2,396 121,737 2060 634 634 121,737 (634) 2,435 123,538 2061 543 543 123,538 (543) 2,471 125,466 2062 543 543 125,466 (543) 2,509 127,432 2063 543 543 127,432 (543) 2,549 129,438 2064 543 543 129,438 (543) 2,589 131,484 2065 543 543 131,484 1543 2,630 133,570 2066 543 543 133,570 (543) 2,671 135,699 2067 543 543 135,699 1543 2,714 137,870 2068 543 543 137,870 (543) 2,757 140,084 2069 543 543 140,084 (543) 2,802 142,343 2070 543 543 142,343 (543 2,847 144,647 2071 543 543 144,647 1543 2,893 146,997 2072 543 543 146,997 (543) 2,940 149,394 2073 3,183 3,183 149,394 (3,183) 2,988 149, 199 2074 6,722 6,722 149,199 (6,722) 2,984 145,461 2075 16,120 38 16,158 145,461 (16,158 2,909 132,213 2076 19,378 83 19,461 132,213 (19,461) 2,644 115,396 2077 24,399 63 24,462 115,396 (24,462 2,308 93,243 2078 20,831 151 20,982 93,243 (20,982) 1,865 74, 125 2079 11,830 4 11,834 74,125 111,834) 1,483 63,774 2080 995 995 63,774 (995) 1,275 64,054 Total 141,087 338 141,425 3

2021 NDT withdrawal includes $3, 167 of expenses that were not reimbursed during prior periods

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ATTACHMENT C-3 Corn Belt (10% Share)

License Termination (50.82(a)(8)(v))

Estimates In 2020 Dollars (Thousands) I Balance with 2% Real Rate of Return CB Ownership I Balance 10% $ 42,357 Annual Fund Earnings 20%

Corn Belt 10% Share of Costs Eligible from Decom Trust c

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A B =A+B+C Year I I ** Total Beginning of Withdrawls Annual NOT End of Year NDT

• .. *;I** Year Balance Earnings Balance 2021< 4! 4,508 4,508 42,357 (4,724) 847 38,480 2022 1,644 1,644 38,480 (1,644) 770 37,606 2023 527 527 37,606 (527) 752 37,832 2024 1,535 1,535 37,832 (1,535) 757 37,053 2025 578 578 37,053 (578) 741 37,216 2026 227 227 37,216 (227) 744 37,734 2027 188 188 37,734 (188 755 38,300 2028 188 188 38,300 (188) 766 38,878 2029 188 188 38,878 (188 778 39,467 2030 194 194 39,467 (194) 789 40,062 2031 182 182 40,062 (182) 801 40,681 2032 182 182 40,681 (182) 814 41,312 2033 182 182 41,312 (182) 826 41,956 2034 182 182 41,956 (182) 839 42,613 2035 182 182 42,613 (182 852 43,283 2036 182 182 43,283 (182) 866 43,966 2037 182 182 43,966 1182) 879 44,663 2038 182 182 44,663 (182 893 45,374 2039 182 182 45,374 (182) 907 46,099 2040 249 249 46,099 1249 922 46,772 2041 182 182 46,772 (182) 935 47,525 2042 182 182 47,525 (182 951 48,293 2043 182 182 48,293 (182) 966 49,077 2044 182 182 49,077 (182) 982 49,876 2045 182 182 49,876 1182 998 50,691 2046 182 182 50,691 (182 1,014 51,522 2047 182 182 51,522 (182) 1,030 52,370 2048 182 182 52,370 (182 1,047 53,235 2049 182 182 53,235 (182) 1,065 54,118 2050 182 182 54,118 (182) 1,082 55,017 2051 182 182 55,017 (182 1, 100 55,935 2052 182 182 55,935 (182) 1,119 56,872 2053 182 182 56,872 (182 1, 137 57,827 2054 212 212 57,827 1212 1, 157 58,771 2055 219 219 58,771 (219) 1, 175 59,728 2056 182 182 59,728 (182) 1,195 60,740 2057 182 182 60,740 1182) 1,215 61,772 2058 182 182 61,772 (182) 1,235 62,825 2059 223 223 62,825 1223) 1,257 63,859 2060 317 317 63,859 (317 1,277 64,819 2061 271 271 64,819 (271) 1,296 65,844 2062 271 271 65,844 (271) 1,317 66,889 2063 271 271 66,889 (271) 1,338 67,956 2064 271 271 67,956 (271) 1,359 69,043 2065 271 271 69,043 (271 1,381 70, 153 2066 271 271 70,153 (271) 1,403 71,285 2067 271 271 71,285 (271) 1,426 72,439 2068 271 271 72,439 (271 1,449 73,616 2069 271 271 73,616 (271) 1,472 74,817 2070 271 271 74,817 (271 1,496 76,042 2071 271 271 76,042 1271 1,521 77,291 2072 271 271 77,291 (271) 1,546 78,566 2073 1,591 1,591 78,566 (1,591 1,571 78,545 2074 3,361 3,361 78,545 (3,361) 1,571 76,755 2075 8,060 19 8,079 76,755 (8,079 1,535 70,212 2076 9,689 42 9,730 70,212 19,730 1,404 61,885 2077 12,200 31 12,231 61,885 (12,231) 1,238 50,892 2078 10,416 75 10,491 50,892 110,491 1,018 41,419 2079 5,915 2 5,917 41,419 (5,917 828 36,331 2080 498 498 36,331 (498) 727 36,560 Total 70,544 169 70,713 4

2021 NDT withdrawal includes $216 of expenses that were not reimbursed during prior periods