ML23089A385

Decommissioning Funding Status Report

ML23089A385
Person / Time
Site:	Millstone
Issue date:	03/30/2023
From:	James Holloway Dominion Energy Nuclear Connecticut
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
23-062
Download: ML23089A385 (1)

Text

Dominion Energy Nuclear Connecticut, Inc.

5000 Dominion Boulevard, Glen Allen, VA 23060 DominionEnergy.com March 30, 2023 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555-0001 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNITS 2 AND 3 DECOMMISSIONING FUNDING STATUS REPORT P

Dominion j, Energy" Serial No.:

NRA/MLW:

23-062 R2 Docket Nos.:

50-336 50-423 License Nos.: DPR-65 NPF-49 Pursuant to 10 CFR 50.75(f)(1), Dominion Energy Nuclear Connecticut, Inc. (DENG) is providing this report on the status of decommissioning funding for Millstone Power Station Unit 2 (MPS2) and Unit 3 (MPS3). provides the following information for MPS2 and MPS3:

Table I -

NRC Minimum Financial Assurance Amount as of: 12/31/2022 Table II -

Funds Held in External Trusts as of: 12/31/2022 Table Ill - Current Annual Funding Levels Table IV - NRC Minimum Financial Assurance Summary Table The following information is provided in support and as part of this filing:

1. Preliminary December 2022 Bureau of Labor Statistics indices values are used because the final December 2022 indices values were not available at the time of this filing.

2. The escalation rate of decommissioning costs is held at 0% based on assuming 2% Real Rate of Return.

3. The growth rate on Trust Funds is held at the allowed 2% Real Rate of Return over the escalation rate.

4. No rate regulatory authority citation for MPS2 and MPS3 is referenced because the 2% Real Rate of Return allowed by 50.75(e)(1)(i) is used in the calculations and MPS2 and MPS3 are merchant units.

Serial No.23-062 Docket Nos.: 50-336/423 Page 2 of 3

5. There are no contracts upon which DENG is relying under paragraph 10 CFR 50.75(e)(1)(v) and there were no modifications to the licensee's current method of providing financial assurance since the last submitted report.

6. There are no annual funding amounts for MPS2 and MPS3.

7. Trust Fund amounts shown for each of the units in this report are market value and after-tax on realized gains and losses. The Trust Fund balances have not been adjusted for unrealized gain or loss positions not currently taxable.

8. Since the previous biennial submittal on March 25, 2021 (Serial No. 21 -079, ADAMS Accession No. ML21085A566) for MPS2 and MPS3 there have been no material changes to trust agreements established for nuclear decommissioning for MPS2 and MPS3.

Please contact Mr. Craig D. Sly at (804) 273-2784 if you have any questions or require additional information.

Sincerely, Jam:::I~

Vice President - Nuclear Engineering and Fleet Support Dominion Energy Nuclear Connecticut, Inc.

Attachment:

Nuclear Decommissioning Financial Assurance as of 12/31/2022 Commitments made in this letter: None

cc:

U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Boulevard, Suite 100 King of Prussia, Pennsylvania 19406-2713 NRC Senior Resident Inspector Millstone Power Station, Units 2 and 3 Mr. R. Guzman Serial No.23-062 Docket Nos.: 50-336/423 Page 3 of 3 NRC Senior Project Manager - Millstone Power Station, Units 2 and 3 U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 08 C-2 Rockville, Maryland 20852-2738 Mr. Edward Kaczinski Massachusetts Municipal Wholesale Electric Co.

Moody Street P. 0. Box 426 Ludlow, Massachusetts 01056 Robert A. Bingel Manager, Financial Planning & Analysis Green Mountain Power Corporation 163 Acorn Lane Colchester, Vermont 05446

Attachment Serial No.: 23-062 Docket Nos.: 50-336/423 Nuclear Decommissioning Financial Assurance as of 12/31/2022 Millstone Power Station Units 2 and 3 Dominion Energy Nuclear Connecticut, Inc. (DENC)

Serial No.23-062 Docket Nos. 50-336/423 Attachment Page 1 of 2 Millstone Power Station Units 2 and 3 Decommissioning Funding Status Report as of December 31, 2022 Dominion Energy Nuclear Connecticut, Inc.

Nuclear Decommissioning Financial Assurance as of:

12/31/2022 Table I:

NRC Minimum Financial Assurance Amount as of: 12/31/2022 10 CFR 50.75 (f}(1)

(Millions of Dollars. differences due to rounding)

(See Note 5)

(See Notes 1&5)

MPS MPS Unlt2 Unit3 Total U3 Owlershin DPR-65 NPF-49 U2&U3 Ov.ne rshln %

Donirion Energy Nu:lear Comedicut, In::.

567.6 564.0 s 1,131.6 93.4707%

Qeen Mmrtain Pov.er Corporation n/a 10.4 s 10.4 1.7303%

Massacrusetls Mridpa] W:C n/a 29.0 s 29.0 4.7990%

Total 567.6 603.4 1,171.0 100.00%

Table II:

Funds Held in External Trusts as of: 12/31/2022 10 CFR 50.75 (f)(1)

(Millions ofDollars)

(See Note 1)

MPS MPS Unit2 Unit3 Total U3 Owlershln DPR-65 NPF-49 U2 &U3 Ov.nershin %

Donirion Energy Nu:learComedicut, In::.

s 928.5 s 919.8 s 1,848.2 93.4707%.

Qeen M>1nain Pov.er Corporation n/a 17.1 17.1 1.7303%

Massacrusetls M.ricioal W:C n/a s 36.3 s 36.3 4.7990%

Total (see Note 21 928.5 973.2 1,901.6 100.00%

Table Ill:

Current Annual Funding Levels 10 CFR 50.75 (f)(1)

(Millions of Dollars)

(See Note 1)

MPS MPS Unit2 Unlt3 Total U3 Owlershlo DPR-65 NPF-49 U2&U3 Ov.nershiD %

Donirion Energy Nu:learConnectiru. ln::.

s s

93.4707%

Qeen Moi.nain Pov.er Corporation s

1.7303%

Massacrusetls M.ricioal Wc.C 4.7990%

Total 100.00%

Serial No.: 23-062 Docket Nos.: 50-336/423 Page 2 of 2 Millstone Power Station Units 2 and 3 Decommissioning Funding Status Report as of December 31, 2022 Table IV:

NRC Minimum Financial Assurance Summary Table 10 CFR 50.75 (f)(1)

(Millions o!Dollars. except percentage and years, differences due to rounding)

(See Note5)

(See Notes 1&5)

MPS MPS Unit 2 Unit3 Total DPR-65 NPF-49 U2&U3 Mehxl for Providi!!J Finarcial Asst.ranee Pre-payment Pre-payment NRC Mrim.rnArmtrds as of:

12/31/2022 s

567.6 s 603.4 1,171.0 Fu-ds in Eldsrnal Trusts as ot.

12/31/2022 s

928.5 s 973.2 s 1,901.6 (See Nole 2)

Fu-ds in Eldernal Trusts as of:

12/31/2022 Mnus NRC Mrim.rnArrotrls as of.

12/31/2022 360.9 s 369.7 s 730.6 (See Noles 2 & 3)

Projected Amal Escalafon Facklr 0.00%

0.00%

Amal Trust Fmds Earrirgs Rae (After Tax& Fees-assumes 2% Real Rate of Return) 2.00%

2.00%

YearTratCperafrg License Elipires (Reflects License Renewal for Unit2 and Unit3) 2035 2045 NRC Mrim.rnFinarcial Assuance Arrotrt 3.5 years a!Er slart of Decorrrrissiof"irg s

567.6 603.4 s 1,171.0 Estirnated Fmds in Bdemal Trusts 3.5 Years al1rerslartof Decorrrrissionirg 1,276.7 s 1,642.1 s 2,918.8 (See Note 2)

Esirnated Fu-ds inei=ss or(tnlelftrded) b NRC Mnim.rn 3.5 years after slart of Decomrissiorirg in Fuu-e Value S s

709.1 s 1,038.7 s 1,747.8 Es(mated flrds in exr:essor(mdemn:led} t, NRC Mnim.rn Disrol6lted usirg Anrual Trus!Ftnls Earrirgs Rae to 12/31/2022 s

515.7 $

615.6 s 1,131.3 (See Notes 3 & 4)

Notes: Tables I through IV (Any minor differences in totals are due to rounding.)

1. MPS3 is jointly owned by Dominion Energy Nuclear Connecticut, Inc. (93.4707%),

Green Mountain Power Corporation (1.7303%) and Massachusetts Municipal WEC (4.7990%).

2. The Trust Funds shown reflect the total amount of funds in the Trusts including MPS3 Minority Owners, all of which are available for Radiological Decommissioning.

3. Negative amounts (if any) indicate that the value of the Trust Funds are less than the value of the NRC Minimum.

4. The Future Value calculation for MPS2 and MPS3 reflects 2% Real Rate of Return applied January 1, 2023 to 3.5 years after start of Decommissioning assuming a 0.00% Escalation Rate.

5. Adjustment Factors used in calculating NRC Minimum Values are based on preliminary December 2022 Bureau of Labor Statistics Producer Price Index, as the final December 2022 index was not available at the time of calculation.