ML25056A067

From kanterella
Jump to navigation Jump to search

PSEG Nuclear LLC - Slides for Preapplication Meeting on Salem Generating Station Power Uprate Project
ML25056A067
Person / Time
Site: Salem  PSEG icon.png
Issue date: 03/05/2025
From:
Public Service Enterprise Group
To: Blake Purnell
NRC/NRR/DORL/LPL1
Kim J
References
EPID L-2025-LRM-0012
Download: ML25056A067 (1)
v • d • e


Text

1 Salem Generating Station Power Uprate Project Nuclear Regulatory Commission Licensing Alignment Meeting March 5, 2025

2 Agenda

Introductions

Salem Plant Overview Drivers for Plant Uprate Salem Power History Stretch Power Uprate Maximum Rated Thermal Power Integrated Schedule Related Licensing Submittals Stretch Power Uprate Submittal Revisit Preliminary Integrated Schedule Next Steps Questions / Discussion Salem Uprate Licensing Alignment Meeting

3 Salem Nuclear Plant Overview

  • Each unit licensed for 60 years Westinghouse 4-Loop PWRs Salem Unit 1 (3459 MWt) Renewed License Expires August 2036 Salem Unit 2 (3459 MWt) Renewed License Expires April 2040 Subsequent License Renewal submittal planned for 2027
  • Salem and the adjacent Hope Creek plant produce 50% of New Jerseys electricity and 85% of New Jerseys carbon-free electricity Avoid 14 million tons of carbon emissions each year
  • New Jersey Zero Emissions Credits Continue to Provide support under a rolling three-year program that preserved the units Did not support investment beyond maintenance capital for safe & reliable operations Salem Uprate Licensing Alignment Meeting

4 Drivers for Plant Uprate

  • Inflation Reduction Act The Inflation Reduction Act provides long-term certainty for a decade Allows for relatively low-cost investments that can add value The IRA also provides additional tax credits for capacity expansions
  • Projected Annual Load Growth Increased demand for carbon free energy driven by growth in AI data centers Load growth coupled with retiring fossil generation leading to future power constraints
  • As a result of this long-term financial certainty and increasing need for power, we are advancing several sequential and concurrent licensing initiatives that support a Salem power uprate up to a maximum of 3708 MWt Salem Uprate Licensing Alignment Meeting

5

  • Original Licensed Thermal Power (OLTP)

Unit 1 - 3338 MWt o Essentially identical design to Unit 2 Limitations in balance of plant (BOP) due to turbine generator coupling and moisture separator drainage capacity o Original design basis transients/accidents and steady state thermal hydraulic analyses performed at 3411 MWt Unit 2 - 3411 MWt Salem Power History Salem Uprate Licensing Alignment Meeting 1976 Unit 1 Initial FOL 3338 MWt 1981 Unit 2 Initial FOL 3411 MWt 1986 Unit 1 Alignment with Unit 2 3338 MWt to 3411 MWt 2001 Units 1&2 Crossflow UFM MUR 3411 MWt to 3459 MWt Current Units 1&2 3459 MWt

6

  • Unit 1 Alignment with Unit 2 BOP limitations were upgraded and license updated to 3411 MWt (ML011660249)

Increased both units from 3411 MWt to Current Licensed Thermal Power (CLTP) of 3459 MWt Salem Power History Salem Uprate Licensing Alignment Meeting 1976 Unit 1 Initial FOL 3338 MWt 1981 Unit 2 Initial FOL 3411 MWt 1986 Unit 1 Alignment with Unit 2 3338 MWt to 3411 MWt 2001 Units 1&2 Crossflow UFM MUR 3411 MWt to 3459 MWt Current Units 1&2 3459 MWt

7 MUR - 1.4%

SPU - 7%

3700 MWt

  • Proposed final Rated Thermal Power (RTP) target has been updated from 3700 MWt to 3708 MWt and includes:

7% uprate from 3411 MWt RTP = ~3649.7 MWt Anticipated 1.6% DVR MUR included with submittal to obtain desired 3708 MWt o Final uncertainty will not be known until DVR model developed and tested

If final uncertainty is greater, then final RTP target will be reduced 3722 MWt - 102% analytical power remains unchanged Maximum Rated Thermal Power Salem Uprate Licensing Alignment Meeting 3411 MWt

~3649.7 MWt 3708 MWt Original MUR 3459 MWt (Current RTP)

MUR - 1.4%

DVR MUR - 1.6%

8

  • Despite lower OLTP on Unit 1, both units essentially the same and all UFSAR Chapter 15 events originally analyzed to higher power level of Unit 2 Removing this historical 2% BOP alignment, Unit 1 SPU approximately 7%
  • Approach aligns with Millstone Unit 3 precedent, but combines Salem SPU and MUR into single submittal Aligns with NRC/industry effort to streamline and gain efficiencies in uprate reviews
  • Requested review time will be 18 months due to the bundled complexity of the submittal Stretch Power Uprate Salem Uprate Licensing Alignment Meeting

9 Updated Integrated Schedule Salem Uprate Licensing Alignment Meeting

10 10

  • Optimized ZIRLOTM Cladding LAR Required to support uprated power levels o Improved thermal limits and corrosion resistance Established industry precedent o Salem is one of few remaining plants that have not adopted Optimized ZIRLO Requires an exemption to 10 CFR 50.46 to allow Optimized ZIRLO cladding SPU requires a minimum of one burnt cycle and a fresh load of Optimized ZIRLO for desirable fuel economics Supports first core load in Spring 2026 (U2) and Fall 2026 (U1)

Submitted July 2024 (ML24206A100) o Responded to RAI - December 2024 (ML24352A080)

Related Licensing Submittals Salem Uprate Licensing Alignment Meeting

11 11

  • Spent Fuel Pool and New Fuel Vault Criticality Analysis LAR Required to accommodate increased isotopic discharge anticipated with uprate to 3708 MWt Will bring criticality analysis up to date with current NRC accepted methodology Updated criticality analysis will bound fuels initiatives supporting SPU o ADOPT fuel pellets o Optimized ZIRLO Pre-submittal meeting March 6, 2025 Targeted LAR submittal 2Q25 Related Licensing Submittals Salem Uprate Licensing Alignment Meeting

12 12

  • Hybrid Rod Cluster Assemblies LAR Replacement RCCAs necessary due to end-of-life of current RCCAs o Long-term capital investment for the plant o Need to ensure investment can accommodate future initiatives o Planned installation during 2029 refueling outages Not required for operation at SPU power level - 3708 MWt o Being considered for potential transition to 24-month fuel cycles o Provide improved shutdown margin and core design flexibility at uprated power level o Include heavier driveshafts to ensure no significant impact to rod drop times and analyses over current RCCAs Early industry precedent (Catawba/Harris) o Used in the early 1990s Related Licensing Submittals Salem Uprate Licensing Alignment Meeting

13 13

  • Update Existing MUR Methodology to DVR LAR Existing MUR based on AMAG Crossflow UFM which cannot be credited for SPU LAR will request methodology change to DVR and not request increase in CLTP DVR methodology uses approved Topical Report (ML23193A749) o DVR-based MUR represents a first of a kind submittal for the industry

DVR model and LAR being developed as part of PWROG pilot initiative DVR model currently under development o Development and onsite testing anticipated to complete July 2025 for Unit 1 and August 2025 for Unit 2 o Final uncertainty confirmed following completion of testing o Will identify opportunities for instrumentation upgrades to further lower uncertainty in SPU LAR Related Licensing Submittals Salem Uprate Licensing Alignment Meeting

14 14

  • Update Existing MUR Methodology to DVR LAR Pre-submittal meeting targeted for June 2025 Targeted LAR submittal December 2025 with requested issuance January 2027 SPU LAR will include revalidation of DVR-MUR to higher power level SPU submittal may be linked to DVR MUR methodology approval if DVR review extends beyond 12 months Related Licensing Submittals Salem Uprate Licensing Alignment Meeting

15 15

  • Uprate targeted at 3708 MWt 7% uprate from 3411 MWt = 3649.7 MWt 3722 MWt - 102% analytical power Anticipated 1.6% DVR based MUR to be bundled with submittal to obtain final 3708 MWt Planned modifications to major BOP equipment in each unit include o Replace High Pressure Turbine o Replace Condensate Pump Impellers o Add additional Condensate Polishing Demineralizer o Replace trim and actuator of BF19 Feedwater Regulating Valves o Cooling System upgrades to increase Generator, Isophase Bus, and Output Transformer ratings SPU Submittal Salem Uprate Licensing Alignment Meeting

16 16

  • SPU LAR submittal will include the following required elements:

Full Spectrum LOCA methodology o Current BASH methodology is being retired in the future by Westinghouse and per NRC cannot be used for power uprates o Efficiencies gained by updating LOCA methodologies at same time of uprate o Adoption of FSLOCA has established precedent throughout the Westinghouse fleet.

Adoption of Reg Guide 1.183, Revision 1, Gap Release Fractions o Remain committed to RG 1.183, Rev 0, but take exception to Table 3, Footnote 11 by adopting limits for gap release fractions consistent with RG 1.183, Rev 1, Table 4 o Precedent at Vogtle 1 & 2 (ML23158A018)

Use of ADOPT fuel pellet type o Required for fuel cycle economics at uprated power o Precedent submittal at Turkey Point (ML23320A028)

SPU Submittal Salem Uprate Licensing Alignment Meeting

17 17

  • SPU LAR submittal will include the following required elements:

Non-LOCA PAD5 o Current revision of Westinghouse fuel rod code approved by NRC o Aligns with usage in FSLOCA Ejected Rod Analysis - change in methodology o Required forward-fit by NRC (Reg. Guide 1.236)

Inclusion of 1.6% DVR MUR as part of net 3708 MWt licensed RTP o Reference prior DVR-based submittal/amendment as basis for MUR at SPU power level o Timing of NRC approval of initial DVR submittal and SPU submittal may cause these to be considered linked o Consideration of License Conditions relative to performance of DVR model at increased power levels prior to increasing power into the anticipated 1.6% MUR power band SPU Submittal Salem Uprate Licensing Alignment Meeting

18 18

  • SPU Project Status Vendors under contract and critical path/long lead activities in progress o Contracts to be issued Spring 2025 to complete analysis efforts supporting LAR
  • LAR submittal targeted for 2Q27 Requested an 18-month review with requested issuance in 4Q28 Review timeline supports 2029 refueling outage implementation dates o Unit 2 - Spring 2029 Outage (S2C31) o Unit 1 - Fall 2029 Outage (S1C34)

SPU Submittal Salem Uprate Licensing Alignment Meeting

19 19 Updated Integrated Schedule Salem Uprate Licensing Alignment Meeting

20 20

Established results from Chapter 15 analyses (e.g., FSLOCA) o Formal NSSS and BOP evaluations completed o

Established procurement and installation schedules for capital upgrades Timing of meetings will allow for integration of staff feedback into final submittals Next Steps Salem Uprate Licensing Alignment Meeting

21 21 Questions / Discussion Salem Uprate Licensing Alignment Meeting

22 22 Thank You Salem Uprate Licensing Alignment Meeting

Retrieved from "https://kanterella.com/w/index.php?title=ML25056A067&oldid=5456071"