ML100780477

Request for Additional Information, Extended Power Uprate

ML100780477
Person / Time
Site:	Point Beach
Issue date:	03/31/2010
From:	Justin Poole Plant Licensing Branch III
To:	Meyer L Point Beach
Poole Justin/DORL/LPL3-1/ 301-415-2048
References
TAC ME1044, TAC ME1045
Download: ML100780477 (3)

Text

\\,.~",I\\ REGU, _

UNITED STATES

J

~

~

~

1-?

....,~

0."

NUCLEAR REGULATORY COMMISSION

.L

(")

WASHINGTON, D.C. 20555-0001 0

~

March 31, 2010

~

,..0

• • • • i' Mr. Larry Meyer Site Vice President NextEra Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241-9516 SUB~IECT:

POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION FROM CONTAINMENT AND VENTILATION BRANCH RE: EXTENDED POWER UPRATE (TAC NOS. ME1044 AND ME1045)

Dear Mr. Meyer:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated April 7, 2009, as supplemented by letters dated September 11 and October 9, 2009 (Agencywide Documents Access and Management System Accession Nos. ML091250564, ML092570205, and ML092860098), FPL Energy Point Beach, LLC, submitted a request to increase each unit's licensed core power level from 1540 megawatts thermal (MVVt) to 1800 MWt reactor core power, and revise the technical specifications to support operation at this increased core thermal power level.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 5, 2010, it was agreed that you would provide the additional information within 30 days of the date of this letter.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC's goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-2048.

Sincerely,

~.

Justin C. Poole, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-266 and 50-301

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ

REQUEST FOR ADDITIONAL INFORMATION POINT BEACH NUCLEAR POWER PLANT, UNITS 1 AND 2 DOCKET NOS. 50-266 AND 50-301 RAI SCVB-1: Provide a discussion regarding the effect of a shock or pressure wave from a large break loss-of-coolant accident (LOCA) with Extended Power Uprate (EPU) on the structural capability of the containment ventilation system with and without a loss of offsite power. What is the maximum pressure differential across the housing?

RAI SCVB-2: Provide a discussion regarding the effect of a shock or pressure wave from a large break LOCA with EPU on the containment ventilation fan. Is there any potential to over speed the fan?

RAI SCVB-3: Section 2.6.1.2.4 of Attachment 5, EPU Licensing Report, of the licensing action request, states the limiting containment pressure case for the EPU is a large double-ended rupture of the main steam line break initiated from 30 percent power with a single failure of the feedwater isolation valve. What is the peak containment pressure and temperature for the EPU with a large double-ended rupture of the main steam line initiated at 100 percent power with a single failure of the feedwater isolation valve?

Enclosure

March 31, 2010 Mr. Larry Meyer Site Vice President NextEra Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241-9516

SUBJECT:

POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION FROM CONTAINMENT AND VENTILATION BRANCH RE: EXTENDED POWER UPRATE (TAC NOS. ME1044 AND ME1045)

Dear Mr. Meyer:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated April 7,2009, as supplemented by letters dated September 11 and October 9, 2009 (Agencywide Documents Access and Management System Accession Nos. ML091250564, ML092570205, and ML092860098), FPL Energy Point Beach, LLC, submitted a request to increase each unit's licensed core power level from 1540 megawatts thermal (MWt) to 1800 MWt reactor core power, and revise the technical specifications to support operation at this increased core thermal power level.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 5, 2010, it was agreed that you would provide the additional information within 30 days of the date of this letter.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC's goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-2048.

Sincerely, IRAJ Justin C. Poole, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-266 and 50-301

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ DISTRIBUTION:

PUBLIC RidsNrrLABTully Resource LPL3-1 r/f RidsNrrPMPointBeach Resource RidsNrrDorlLpl3-1 Resource BHeida, NRR RidsRgn3MailCenter Resource RidsOgcRp Resource RDennig, NRR RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource RidsNrrDssScvb Resource ADAMS Accession Number' ML100780477 OFFICE LPL3-1/PM LPL3-1/LA NRRISCVB/BC LPL3-1/BC NAME JPoole BTuily RDennig RPascarelli /TBeltz for DATE 03125/10 03/23/10 03/26/10 03/31/10 OFFICIAL RECORD COPY