ML25093A226
| ML25093A226 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 03/27/2025 |
| From: | James Holloway Dominion Energy Nuclear Connecticut |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| 25-059 | |
| Download: ML25093A226 (1) | |
Text
Dominion Energy Nuclear Connecticut, Inc.
5000 Dominion Boulevard, Glen Allen, VA 23060 DominionEnergy.com
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Dominion
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Energy March 27, 2025 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 Serial No.:
NRNJH:
Docket Nos.:
License Nos.:
25-059 RO 50-336 50-423 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).
The attachment provides the following information for MPS2 and MPS3:
Table I -
NRG Minimum Financial Assurance Amount as of: 12/31/2024 Table II -
Funds Held in External Trusts as of: 12/31/2024 Table Ill - Current Annual Funding Levels Table IV - NRG Minimum Financial Assurance Summary Table The following information is provided in support and as part of this filing:
- 1. Preliminary December 2024 Bureau of Labor Statistics indices values are used because the final December 2024 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 a 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.25-059 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 30, 2023 (Serial No.23-062, ADAMS Accession No. ML23089A385) for MPS2 and MPS3, there have been no material changes to trust agreements established for nuclear decommissioning for MPS2 and MPS3.
Please contact Julie Hough at (804) 273-3586 if you have any questions or require additional information.
Sincerely, Jame~?~
Vice President - Nuclear Engineering and Fleet Support Dominion Energy Nuclear Connecticut, Inc.
Attachment:
Nuclear Decommissioning Financial Assurance as of December 31, 2024 Commitments made in this letter: None
cc:
U.S. Nuclear Regulatory Commission Region I NRG Senior Resident Inspector Millstone Power Station, Units 2 and 3 Mr. R. Guzman Serial No.25-059 Docket Nos.: 50-336/423 Page 3 of 3 NRG Senior Project Manager - Millstone Power Station, Units 2 and 3 U. S. Nuclear Regulatory Commission Mr. Edward Kaczinski Massachusetts Municipal Wholesale Electric Co.
Robert A. Bingel Manager, Financial Planning & Analysis Green Mountain Power Corporation
Attachment Serial No.: 25-059 Docket Nos.: 50-336/423 Nuclear Decommissioning Financial Assurance as of December 31, 2024 Millstone Power Station Units 2 and 3 Dominion Energy Nuclear Connecticut, Inc. (DENC)
Serial No.25-059 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, 2024 Table I:
Ownership Doninion Energy Nuclear Connecticut, Inc.
Green Mountain Power Corporation Massachusetts Municipal WEC Total Table II:
Ownership Doninion Energy Nuclear Connecticut, Inc.
Green Mountain Power Corporation Massachusetts Municipal WEC Total (see Note 2)
Table Ill:
Not collecting decom cost in rates so zero Ownership Doninion Energy Nuclear Conneclicut, Inc.
Green Mountain Power Corporation Massachusetts Municipal WEC Total NRC Minimum Financial Assurance Amount as of: 12/31/2024 (SeeNote5)
MPS Unit2 DPR-65 549.4 n/a n/a 549.4 MPS Unit2 DPR-65 1,269.7 n/a nla 1,269.7 MPS Unit2 DPR-65 10 CFR 50.75 (f)(1)
(Millions of Dollars, differences due to rounding)
(See Notes 1&5)
MPS Unit3 Total U3 NPF-49 U2 &U3 Ownership%
546.0 1,095.4 93.4707%
10.1 10.1 1.7303%
28.0 28.0 4.7990%
584.1 1,133.5 100.00%
Funds Held in External Trusts as of: 12/31/2024 10 CFR 50.75 (f)(1)
(Millions of Dollars) agrees to 10-K decom table (See Note 1)
MPS Unit3 Total NPF-49 U2 &U3 1,282.2 2,551.9 25.5 25.5 47.7 47.7 1,355.5 2,625.1 Current Annual Funding Levels 10 CFR 50.75 (f)(1)
(Millions of Dollars)
(See Note 1)
MPS Unit3 Total NPF-49 U2 &U3 U3 Ownership%
93.4707%
1.7303%
4.7990%
100.00%
U3 Ownership%
93.4707%
1.7303%
4.7990%
100.00%
Serial No.: 25-059 Docket Nos.: 50-336/423 Page 2 of 2 Millstone Power Station Units 2 and 3 Decommissioning Funding Status Report as of December 31, 2024 Table IV:
Method for Providing F"11ancial Assurance NRC MininvmAmounts as of:
Funds in External Trusts as of:
(Seellote2)
Funds in External Trusts as ot.
Minus NRC MininvmAmounts as of:
(Seellot.. 2&3)
Projected Annual Escalation Factor Annual Trust Funds Earnings Rate (After Tax & Fees
- assumes 2% Real Rate of Retum)
Year That Operating License Expires (Reflects License Renewal for Unit 2 and Unit 3)
NRC Mininvm F"11ancial Assurance Amount 3.5 years after start of Deconmssioning Estimated Funds in External Trusts 3.5 Years after start of Deconnissioning (SeeNote2)
Estimated Funds in excess or (underfunded) to NRC Mininvm 3.5 years after start of Decomrissioning in Future Value S Estimated funds in excess or (underfunded) to NRC Mininvm 12/31/2024 s
12/31/2024 s
12/31/2024 12/31/2024 S
s s
s Discounted using Annual Trust Funds Earnings Rate to 12/31/2024 s
(See Notes 3 & 4)
NRC Minimum Flnanclal Assurance Summary Table 10 CFR 50.75 (f)(1)
(Millions of Dollars - except percenlage and years. differences due to rounding)
(SeeNoteS)
MPS Unlt2 OPR-65 Pre-payment 549.4 s 1,269.7 s 720.3 s 0.00%
2.00%
2035 549.4 s 1,678.1 s 1,128.7 S 854.0 s (See Notes 1&5)
MPS Unlt3 NPF-49 Pre-payment 584.1 s 1,355.5 s 771.3 s 0.00%
2.00%
2045 584.1 s 2,198.3 s 1,614.2 S 995.3 S Total U2&U3 1,133.5 2,625.1 1,491.6 1,133.5 3,876.5 2,742.9 1,849.4 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 a 2% Real Rate of Return applied January 1, 2025 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 2024 Bureau of Labor Statistics Producer Price Index, as the final December 2024 index was not available at the time of calculation.