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| {{#Wiki_filter:PRE-APPLICATION MEETING FOR PRAIRIE ISLAND TS 5.6.6, PTLR, LAR February 18, 2022 | | {{#Wiki_filter:}} |
| © 2022 Xcel Energy 1
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| Agenda Purpose
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| ===Background===
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| LAR Details Schedule
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| © 2022 Xcel Energy 2
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| Purpose Discuss proposed license amendments to adopt approved methods in Technical Specifications (TS) 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR).
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| © 2022 Xcel Energy 3
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| ===
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| Background===
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| * NSPM pulled surveillance capsules from the reactor vessel in the most recent Unit 1 (2020) and Unit 2 (2021) refueling outages.
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| * Review of Westinghouse draft report for the analysis of the Unit 1 surveillance capsule identified that there was a legacy error in calculations with respect to the location of weld W2.
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| © 2022 Xcel Energy 4
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| LAR Details
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| * The proposed amendments would revise PINGP TS 5.6.6 to include more recent analytical methods that have been found acceptable by the NRC.
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| o Update the approved analytical method to determine RCS pressure and temperature limits and over-pressure protection system (OPPS) setpoints from WCAP-14040-NP-A, Rev 2, to that in WCAP-14040-NP-A, Rev 4.
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| o Update the approved analytical method for calculating neutron fluence to the Westinghouse methodology provided in WCAP-18124-NP-A, Rev 0, to allow this method as an alternative to section 2.2 of WCAP-14040, Rev 4.
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| * NSPM plans to include with the LAR the revised Unit 1 heatup and cooldown curves using the proposed methods.
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| o NSPM expects the Unit 2 heatup and cooldown curves will be bounded by the Unit 1 curves.
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| © 2022 Xcel Energy 5
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| LAR Details (continued)
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| Technical Specification Markups
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| © 2022 Xcel Energy 6
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| LAR Details (continued)
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| * Precedent: Beaver Valley Units 1 and 2 amendments 313 and 203 o Comments on extended beltline comparing PINGP to Beaver Valley.
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| Supplement 1 to WCAP-18124, Rev 0, addresses extended beltline generically and is currently in NRC review and expected before the new Unit 1 heatup and cooldown curves are completed.
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| The Beaver Valley fluence calculation resulted in more material in the extended beltline. PINGP will not have new material within the extended beltline.
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| © 2022 Xcel Energy 7
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| Schedule
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| * March 2022 - Submit Unit 1 Capsule Report
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| * August 2022 - Submit PTLR LAR
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| * March 2023 - Submit Unit 2 Capsule Report
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| * July 2023 - Submit Unit 2 heatup and cooldown curves
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| * September 2023 - Submit PTLR revision
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| © 2022 Xcel Energy 8
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| © 2022 Xcel Energy 9}}
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