NL-25-0149, Response to NRC RIS 2025-02, Planned Power Uprate-Related Submittals
| ML25128A365 | |
| Person / Time | |
|---|---|
| Site: | Hatch, Vogtle, Farley  |
| Issue date: | 05/08/2025 |
| From: | Coleman J Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| NL-25-0149 | |
| Download: ML25128A365 (1) | |
Text
>. Southern Nuclear May 8, 2025 Docket Nos.: 50-348 50-321 50-424 50-364 50-366 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Regulatory Affairs Joseph M. Farley Nuclear Plant Unit 1 and 2 Edwin I. Hatch Nuclear Plant Unit 1 and 2 Vogtle Electric Generating Plant Unit 1 and 2 3535 Colonnade Parkway Birmingham, AL 35243 205 992 5000 tel 205 992 7601 fax NL-25-0149 Response to NRC RIS 2025-02 Planned Power Uprate-Related Submittals Ladies and Gentlemen:
On February 7, 2025, the U. S. Nuclear Regulatory Commission (NRC) issued Regulatory Issue Summary (RIS) 2025-02 to request that licensees voluntarily provide information on planned power uprate-related licensing submittals. The purpose of this information is to assist the NRC in budgeting for and allocating its resources.
Enclosed is the Southern Nuclear Operating Company (SNC) response for the plants and units referenced above. This information may be made public.
If you have any questions, ptease contact Ryan Joyce at 205.992.6468.
Respectfully submitted, Jamie Coleman Regulatory Affairs Director efb/cmg
Enclosure:
Table of SNC Estimated Power Uprate Licensing Actions cc:
Regional Administrator - Region II NRR Project Manager - Farley, Hatch, Vogtle 1 & 2 Senior Resident Inspector - Farley, Hatch, Vogtle 1 & 2 SNC Record R-Type: CGA02.001
Table of SNC Estimated Power Uprate Licensing Actions Plant Power Expected Planned Uprate Schedule CLTP Type for Filing Increase Farley Unit 1 and 2 EPU Q3 2028 179 MWt Hatch Unit 1 and 2 EPU Q2 2027 156 MWt Vogtle Unit 1 and 2 EPU Q4 2028 124.4 MWt NOTES:
Joseph M. Farley Nuclear Plant Unit 1 and 2 Licensing Action: Extended Power Uprate (EPU)
Estimated Submittal Date: Q3 2028 Requested NRC Approval Date: Q3 2029 Power Expected Related Licensing Actions with Expected Increase Date for Schedule for Filing from Power CLTP Ascension 6.345%
U2-Q2 2031 AST RG 1.183 Rev 1 in Q3 2026 U1-Q4 2031 SFP Criticality Analysis in Q2 2027 Other Fuel/Methodology Updates in Q4 2029 24-mo fuel cycle in Q1 2032 5.563%
U2-Q1 2029 MELLLA+ in Q2 2027 U1-Q1 2030 3.431 %
U1-Q4 2030 AST RG 1.183 Rev 1 in Q2 2025 U2-Q2 2031 SFP Criticality Analysis in Q2 2026 Other Fuel/Methodology Updates in Q2 2027 4 RCCAs and 24-month fuel cycle in Q2 2030 Planned MWt increase from Current Licensed Thermal Power (CL TP) of 2821 MWt is 179 MWt. Proposed L TP is 3000 MWt.
(The planned increase is still being evaluated and may change.)
Planned Percentage Increase from CL TP: 6.345%
Expected Date for Power Ascension at Uprated Conditions: May 2031 (Unit 2); October 2031 (Unit 1)
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Related Significant Licensing Actions:
- 1) Alternate Source Term (AST) Update to RG 1.183 Rev 1 to facilitate Incremental Extension of Burn up Limit - Submit Q3 2026
- 2) Spent Fuel Pool (SFP) Criticality Analysis Update - Submit in Q2 2027
- 3) Other Fuel and Methodology Updates -Advanced Doped Pellet Technology (ADOPT) Fuel Pellets; Incremental Extension of Burnup Limit; Full Spectrum Loss of Coolant Accident (FSLOCA) evaluation model update; Fuel Rod Performance Analysis and Design code (PADS) model update; Control Rod Ejection Accident with three-dimensional analysis (3D Rod Ejection) model update per NRC R.G. 1.236; Locked Reactor Coolant Pump Rotor Accident with three-dimensional analysis (3D Locked Rotor) model update - Submit Q4 2029 combined with the Farley EPU License Amendment Request (LAR)
- 4) 24-month fuel cycle - Submit in Q2 2034 Edwin I. Hatch Nuclear Plant Unit 1 and 2 Licensing Action: EPU Projected Submittal Date: Q2 2027 Requested Approval Date: Q2 2028 Planned MWt increase from CL TP of 2804 MWt is 156 MWt. Proposed L TP is 2960 MWt Planned Percentage Increase from CL TP: 5.563%
Expected Date for Power Ascension at Uprated Conditions: February 2029 (Unit 2); February 2030 (Unit 1)
Related Significant Licensing Actions:
- 2) Steam Dryer (SD) Replacement (Unit 1 SD installed at CL TP via 50.59 in Q1 2028; Unit 2 SD installed at EPU conditions via EPU LAR in Q1 2029)
Vogtle Electric Generating Plant Unit 1 and 2 Licensing Action: EPU Projected Submittal Date: Q4 2028 Requested Approval Date: Q4 2029 Planned MWt increase from CL TP of 3625.6 MWt is 124.4 MWt. Proposed L TP is 3750 MWt.
Planned Percentage Increase from CL TP: 3.431%
Expected Date for Power Ascension at Uprated Conditions: October 2030 (Unit 1 ); April 2031 (Unit 2)
Related Significant Licensing Actions:
- 1) AST Update to RG 1.183 Rev 1 to facilitate Incremental Extension of Burnup Limit - Submit Q2 2025
- 2) SFP Criticality Analysis Update - Submit Q2 2026
- 3) Fuel and Methodology Updates - Transition from Optimized Fuel Assembly (OFA) to Robust Fuel Assembly (RFA); ADOPT Fuel Pellets; AXIOM Fuel Rod Cladding, Incremental Extension of Burnup Limit, FSLOCA evaluation update, PADS model update, 3D Rod Ejection model update; 3D Locked Rotor model update - Submit Q2 2027
- 4) Four New RCCAs and 24-month fuel cycle - Submit in Q2 2030 Page 2