ML21085A566

Decommissioning Funding Status Report

ML21085A566
Person / Time
Site:	Millstone
Issue date:	03/25/2021
From:	Mark D. Sartain Dominion Energy Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
21-079
Download: ML21085A566 (6)

Text

Dominion Energy Nuclear Connecticut, Inc.

5000 Dominion Boulevard, Glen Allen, VA 23060 Dominion Dominion Energy.com Energy March 25, 2021 United States Nuclear Regulatory Commission Serial No.: 21-079 Attention: Document Control Desk NRA/ENC: RO Washington, D. C. 20555-0001 Docket Nos.: 50-336 50-423 License Nos.: DPR-65 NPF-49 DOMINION ENERGY NUCLEAR CONNECTICUT, 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: 12/31/20~0 Table II - Funds Held in External Trusts as of: 12/31/2020 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 2020 Bureau of Labor Statistics indices values are used because the final December 2020 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.21-079 Docket Nos.: 50-336/423 Page 2 of 3

5. There are no contracts upon which DENC 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 26, 2019 (Serial No.19-049, ADAMS Accession No. ML19092A294) 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, Mark. D. Sartain Vice President - Nuclear Engineering and Fleet Support Dominion Energy Nuclear Connecticut, Inc.

Attachment:

Nuclear Decommissioning Financial Assurance as of 12/31/2020 Commitments made in this letter: None

Serial No.21-079 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 NRG Senior Resident Inspector Millstone Power Station, Units 2 and 3 Mr. R. Guzman NRG 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. Box426 Ludlow, Massachusetts 01056 Ms. Carolyn Anderson Director of Transmission Policy & Insurance Green Mountain Power Corporation 2152 Post Road Rutland, Vermont 05701

Serial No.: 21-079 Docket Nos.: 50-336/423 Attachment 1 Nuclear Decommissioning Financial Assurance as of 12/31/2020 Millstone Power Station Units 2 and 3 Dominion Energy Nuclear Connecticut, Inc. {DENC)

Serial No.21-079 Docket Nos. 50-336/423 Attachment 1 Page 1 of 2 Millstone Power Station Units 2 and 3 Decommissioning Funding Status Report as of December 31, 2020 Dominion Energy Nuclear Connecticut, Inc.

Nuclear Decommissioning Financial Assurance as of: 12/31/2020 Table I:

NRC Minimum Financial Assurance Amount as of: 12/31/2020 10 CFR 50,75 (f)(1)

(MiHions of DoBars, differences due to rounding)

(SeeNote5) (See Notes 1&5)

MPS MPS Unil 2 Unil3 Total ua Ownership DPR-66 NPF-49 u2 & ua Ownership%

Dominion Energy Nuclear Connecticut, Inc. $ 482.3 $ 479.3 $ 961.7 93.47%

Green Mountain Power Corporation n/a $ 8.9 $ 8.9 1.73%

Massachusetts Municipal WEC n/a $ 24.6 $ 24.6 4.80%

Total $ 482.3 $ 512.8 $ 995.2 100.00%

Table II:

Funds Held in External Trusts as of: 12/31/2020 10 CFR 50.75 (f)(1)

(MHlions of Dollars)

(Seet-klte1)

MPS MPS Unit2 Unit3 Total U3 Ownership DPR-66 NPF-49 U2 & U3 Ownership%

Dominion Energy Nuclear Connecticut, Inc. $ 939.7 $ 916.6 $ 1,856.3 93.47%

Green Mountain Power Corporation nla $ 17.0 $ 17.0 1.73%

Massachusetts Municipal WEC nla $ 38.1 $ 38.1 4.80%

Total /see Note 21 $ 939.7 $ 971.6 $ 1 911.3 100.00%

Table Ill:

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

(Millions of Dollars)

(Seet-klte1)

MPS MPS Unit2 Unit3 Total U3 Ownership DPR-65 NPF-49 U2 & U3 Ownership%

Dominion Energy Nuclear ConnecticuL Inc. $ $ . $ . 93.47%

Green Mountain Power Corporation $ . $ . $ - 1.73%

Massachusetts Municipal WEC $ . $ $ - 4.80%

Total $ - $ . $ . 100.00%

Serial No.: 21-079 Docket Nos.: 50-336/423 Attachment 1 Page 2 of 2 Millstone Power Station Units 2 and 3 Decommissioning Funding Status Report as of December 31, 2020 Table IV:

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

(Millions of Doffars - except percentage and years, differences due to rounding)

(SeeNote5) (SeeNotes 1&5)

MPS MPS Unit 2 Unit3 Total DPR-65 NPF-49 U2 & U3 Method for Providing Financial Assurance Pre-payment Pre-payment NRG Minimum Amounts as of: 12/31/2020 $ 482.3 $ 512.8 $ 995.2 Funds in External Tnusts as of: 12/31/2020 $ 939.7 $ 971.6 $ 1,911.3 (Sae Note 2)

Funds in External Trusts as of: 12/31/2020 Minus NRG Minimum Amounts as of: 12/31/2020 $ 457.3 $ 458.8 $ 916.1 (See Notes 2 & 3)

Projected Annual Escalation Factor 0.00% 0.00%

Annual Trust Funds Earnings Rate (After Tax& Fees - assumes2% Real Rate of Return) 2.00% 2.00%

Year That Operating License Expires (Reflects License Renewal for Unit 2 and Unit 3) 2035 2045 NRG Minimum Financial Assurance Amount 3.5 years after start of Decommissioning $ 482.3 $ 512.8 $ 995.2 Estimated Funds in External Trusts 3.5 Years after start of Decommissioning $ 1,344.3 $ 1,705.7 $ 3,050.1 (SeeNote2}

Estimated Funds in excess or (underfunded} to NRG Minimum 3.5 years after start of Decommissioning in Future Value $ $ 862.0 $ 1,192.9 $ 2,054.9 Estimated funds in excess or (underfunded) to NRG Minimum Discounted using Annual Tnust Funds Earnings R 12/31/2020 $ $ 602.5 $ 679.6 $ 1,282.1 (See Notes3 & 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 NRG Minimum.

4. The Future Value calculation for MPS2 and MPS3 reflects 2% Real Rate of Return applied 1/1/2021 to 3.5 years after start of Decommissioning assuming a 0.00% Esc Rate.

5. Adjustment Factors used in calculating NRG Minimum Values are based on preliminary December 2020 BLS Producer Price Indexes, as final December 2020 indexes were not available at time of calculation.