ML100480103

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Acceptance of Requested Licensing Action Measurement Uncertainty Recapture Power Uprate Application
ML100480103
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 02/19/2010
From: Thomas Wengert
Plant Licensing Branch III
To: Schimmel M
Northern States Power Co
Wengert, Thomas J, NRR/DORL, 415-4037
References
TAC ME3015, TAC ME3016
Download: ML100480103 (3)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 19, 2010 Mr. Mark A. Schimmel Site Vice President Prairie Island Nuclear Generating Plant Northern States Power - Minnesota 1717 Wakonade Drive East Welch, MN 55089

SUBJECT:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 ACCEPTANCE OF REQUESTED LICENSING ACTION RE: MEASUREMENT UNCERTAINTY RECAPTURE POWER UPRATE APPLICATION (TAC NOS.

ME3015 AND ME3016)

Dear Mr. Schimmel:

By letter dated December 28, 2009 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML093650061), Northern States Power Company, a Minnesota corporation (NSPM) submitted a license amendment request for Prairie Island Nuclear Generating Plant, Units 1 and 2. The proposed amendment would increase the licensed rated thermal power (RTP) as a result of a measurement uncertainty recapture power uprate. The proposed change would increase the RTP by 1.64 percent from 1650 megawatts thermal (MWt) to 1677 MWt. NSPM's request is based on reduced uncertainty in the RTP measurement achieved by installation of a Caldon Leading Edge Flow Meter Checkplus' System used to measure feedwater flow and temperature.

The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff's acceptance review of this amendment request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

Consistent with Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), an amendment to the license (including the technical specifications) must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications. Section 50.34 of 10 CFR addresses the content of technical information required.

This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.

The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staff's ability to complete the detailed technical review are identified despite completion of an adequate

M. Schimmel -2 acceptance review. You will be advised of any further information needed to support the NRC staff's detailed technical review by separate correspondence.

If you have any questions, please contact me at (301) 415-4037.

Sincerely,

~~"'-d-~a+/-*

Thomas J. Wengert, Senior Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-282 and 50-306 cc: Distribution via Listserv

M. Schimmel -2 acceptance review. You will be advised of any further information needed to support the NRC staff's detailed technical review by separate correspondence.

If you have any questions, please contact me at (301) 415-4037.

Sincerely, IRAJ Thomas J. Wengert, Senior Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-282 and 50-306 cc: Distribution via Listserv DISTRI BUTION:

PUBLIC TAlexion, NRR LPL3-1 rlf RidsNrrDprPgcb Resource RidsAcrsAcnw_MailCTR Resource RidsNrrDorl Resource RidsNrrDorlDpr Resource RidsNrrDorlLpl3-1 Resource RidsNrrLABTully Resource RidsNrrPMPrairielsland Resource RidsOgcRp Resource RidsRgn3MailCenter Resource ADAMS Accession No. ML100480103 OFFICE DORULPL3-1/PM DORULPL3-1/LA DORULPL3-1/BC DORULPL3-1/PM NAME TWengert BTully RPascarelli TWengert DATE 01/18/2010 01/18/2010 02/19/2010 02/19/2010 OFFICIAL RECORD COpy