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

Do m inion Energy Nucl ea r Conn ecticut, In c.

5000 Do mini o n Bou leva rd, Glen A lle n, V A 23060 P Dominion Dom inion Energy.com j, Energy"

March 30, 2023

United States Nuclear Regulatory Commission Serial No.: 23-062 Attention: Document Control Desk NRA/MLW: R2 Washington, D. C. 20555-0001 Docket Nos.: 50-336 50-423 License Nos.: DPR-65 NPF-49

DOMINION ENERGY NUCLEAR CONN EC TICUT, INC.

MILLSTONE POWER STATION UNITS 2 AND 3 DECOMMISSIONING FUNDING STATUS REPORT 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 paragr a ph 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 a nnual funding amounts for MPS2 a nd 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 a djusted for unrealized gain or loss positions not currently ta xable.

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 nucle a r 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 Seria l No.23-062 Docket Nos.: 50-336/423 Page 3 of 3

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 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, Fina ncial Planning & Analysis Green Mountain Power Corporation 163 Acorn Lane Colchester, Vermont 05446 Serial No.: 23-062 Docket Nos.: 50-336/423

Attachment

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

Millsto n e Pow er Station Uni ts 2 a nd 3 Deco mmiss ioning Funding Status Repo rt 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)

(M illions of Do llars. differences due to round ing)

(See Note 5) (See Notes 1&5)

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

Doni rion Energy Nu:lear Comedicut, In::. $ 567.6 $ 564.0 s 1,131.6 93.4707%

Qeen Mm rtain Pov.er Corporation n/a $ 10.4 s 10.4 1.7303%

Massacrusetls Mrid pa] W:C n/a $ 29.0 s 29.0 4.7990%

Total $ 567.6 $ 603.4 $ 1,171.0 100.00%

Ta ble II:

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

(M illions ofDollars)

(See Note 1)

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

Doni rion 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 Leve ls 10 CFR 50.75 (f)(1)

(Millions of Do llars)

(See Note 1)

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

Donirion Energy Nu:learConnectiru. ln::. s - $. s - 93.4707%

Qeen Mo i.nain Pov.er Corpora tion $ - $ - s - 1.7303%

Massacrusetls M.rici oal Wc.C $ - $ - $ - 4.7990%

Total $ - $ - $ - 100.00%

Serial No.: 23-062 Dock et Nos.: 50-336/423 Attachm ent 1 Pag e 2 of 2

Millsto n e Po we r Station Uni ts 2 a n d 3 Decommissioning Fundin g Status Re port as o f December 31, 202 2

Table IV:

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

(M illions o!Dollars. exc ept percentage a nd years, d ifferences due to ro u nding)

(See Note5 ) (See Notes 1&5)

MPS MPS Un it2 Unit3 Total DPR -65 NPF-49 U2&U3

Mehxl for Providi!!J Finarcial Asst.ranee Pre-payment Pre-payment

NRC Mri m.rn Armtrds 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 Ama l Esca lafon Facklr 0.00% 0.00%

Amal Trust Fmds Ea rrirgs Rae (After Ta x& Fees-assu me s 2% Real Rate of Return) 2.00% 2.00%

YearTratCpe rafrg License Elipires (Re flects License Renewal for U nit2 a nd Unit3) 2035 2045

NRC Mrim.rn Finarcial Assuance Arro trt 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 Deco rrrrissionirg $ 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(md emn:led } t, NRC Mnim.rn Disrol6lted usirg Anrual Trus!Ftnls Ea rrirgs Rae to 12/31/2022 s 515.7 $ 615.6 s 1,131.3 (See Notes 3 & 4)

Notes: Tables I throu gh 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 a re based on preliminary December 2022 Bureau of Labor Statistics Producer Price Index, as the final December 2022 index was not availa ble at the time of calculation.