ML13091A077

Annual Operating Report for 2012

ML13091A077
Person / Time
Site:	Summer
Issue date:	03/27/2013
From:	Gatlin T South Carolina Electric & Gas Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13091A077 (9)

Text

Thomas D. Gatlin Vice President, Nuclear Operations 803.345.4342 A SCANA COMPANY March 27, 2013 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 ANNUAL OPERATING REPORT Enclosed is the 2012 Annual Operating Report for the South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Unit No. 1. This report is being submitted in accordance with Technical Specification 6.9.1.4 and Regulatory Guide 1.16.

If there are any questions, please call at your convenience.

Very truly yours, Thomas D. Gatlin SBR/TDG/sr Attachment c:

K. B. Marsh S. A. Byrne J. B. Archie N. S. Carns J. H. Hamilton J. W. Williams W. M. Cherry V. M. McCree E. A. Brown REIRS Project Manager M. L. Thomas K. M. Sutton J. C. Mellette C. Stewart (ANI)

Marsh USA, Inc.

NRC Resident Inspector NSRC RTS (LTD 292)

File (818.02-10, RR 8225)

PRSF (RC-13-0045)

Virgil C. Summer Station

• Post Office Box 88. Jenkinsville, SC.29065. F (803) 345-5209

VIRGIL C. SUMMER NUCLEAR STATION 2012 ANNUAL OPERATING REPORT

Document Control Desk LTD 292 RC-13-0045 Page 2 of 8 PREFACE The 2012 Annual Operating Report for the Virgil C. Summer Nuclear Station is hereby submitted in accordance with Technical Specification 6.9.1.4 and Regulatory Guide 1.16 under Docket Number 50/395 and Facility Operating License NPF-12.

Document Control Desk LTD 292 RC-1 3-0045 Page 3 of 8 TABLE OF CONTENTS SECTION 1.0 2.0 3.0 4.0 5.0 TITLE Introduction Operational Data Operating Summary Exposures Failed Fuel PAGE 4

4 4

6 6

ATTACHMENTS I.

2012 Man-Rem Report

Document Control Desk LTD 292 RC-1 3-0045 Page 4 of 8 ANNUAL OPERATING REPORT

1.0 INTRODUCTION

The Virgil C. Summer Nuclear Station (VCSNS) utilizes a pressurized water reactor rated at 2900 MWT.

The maximum dependable capacity is 966 MWe.

The station is located approximately 26 miles northwest of Columbia, South Carolina.

2.0 OPERATIONAL DATA For the reporting period of January 1 through December 31, 2012, the station operated at a capacity factor of 85.8% (using maximum dependable capacity) and a unit availability of 84.9%. The reactor was critical for a total of 7671.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />, the generator remained on line 7490.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> and the total gross electrical energy generated for 2012 was 7,568,930 MWH.

3.0 OPERATING

SUMMARY

The Virgil C. Summer Nuclear Station (VCSNS) Unit No.1 operated at 100% power from January 1 st through January 2 0 th. On January 2 0 th power was reduced to 90% to support main turbine control valve testing. Power was restored to 100% on January 2 1st.

VCSNS operated at 100% power from January 2 1st to April 2 7th On April 2 7 th power was reduced to approximately 92% to support main turbine control valve testing. Power was restored to 100% on April 2 8th VCSNS operated at 100% power from April 2 8th to June 2 2 nd. On June 2 2nd power was reduced to approximately 92% to support main turbine control valve testing. Power was restored to 100% on June 2 3 rd.

VCSNS operated at 100% power from June 2 3 rd to October 7t. On October 7 th power was reduced to approximately 98% for fuel coast down in preparation for Refueling Outage Twenty (RF 20). On October 8 th power was reduced to approximately 97% for fuel coast down. On October 9 th power was reduced to approximately 85% to test the main steam safety valves. On October 13 th the unit was taken offline for RF 20. The unit remained shutdown for the refueling outage until December 6 th when the

Document Control Desk LTD 292 RC-1 3-0045 Page 5 of 8 reactor was returned to criticality and synchronized to the grid at 0651 hours0.00753 days <br />0.181 hours <br />0.00108 weeks <br />2.477055e-4 months <br /> on December 7 th. Reactor power was restored to 100% on December 12th VCSNS operated at 100% power from December 12th to December 15th On December 15 th power was reduced to approximately 98% to support instrument calibration and testing of the Nuclear Steam Supply System (NSSS). Reactor power was restored to 100% on December 16tl.

Refueling Outage 20 Summary The main generator breaker was opened at 0031 hours3.587963e-4 days <br />0.00861 hours <br />5.125661e-5 weeks <br />1.17955e-5 months <br /> on October 13th for Refueling Outage 20. The outage duration was originally planned through November 2 1 st, however reactor vessel head repair resulted in a 16.3 outage extension.

Major work included:

Switchyard Bus 3 upgrades Switchyard Bus 1 upgrades Main Control Board 230 kV breaker monitor

" Service Water to Emergency Feedwater system pipe modification

" Phase 2 inadvertent safety injection

" Main Generator Hydrogren cooler vent line

" "A' Train Battery Replacements Reactor vessel head penetration repair Refueling Outage 20 duration was 55 days. Outage planned duration was 39 days. Personnel exposure in 2012 due to the outage was approximately 93.993 Rem, based on electronic dosimeters.

Document Control Desk LTD 292 RC-1 3-0045 Page 6 of 8 Forced Power Reduction >20% Exceeding 4 Hours None 4.0 EXPOSURES Attachment I lists the number of station, utility, and other personnel (including contract personnel) receiving exposures greater than 100 mrem/year and their associated man-rem exposure according to work and job function.

The exposures reported are estimated doses based on electronic dosimeters.

5.0 FAILED FUEL VCSNS did not have any indications of failed fuel in 2012.

Document Control Desk LTD 292 RC-1 3-0045 Page 7 of 8 ATTACHMENT I TO 2012 ANNUAL REPORT

Document Control Desk LTD 292 RC-1 3-0045 Page 8 of 8 South Carolina Electric & Gas Company V. C. Summer Nuclear Station Personnel and Man-Rem by Work and Duty Function Regulatory Guide 1.16 Annual Report for 2012 Number of Personnel Over 100 mRem Total Man-Rem Work and Job Function Station Utility Contract Station Utility Contract Workers Workers Workers Workers Workers Workers Inservice Maintenance Engineering Personnel 0

0 0

0.031 0.000 0.071 Health Physics Personnel 0

0 0

0.129 0.000 0.218 Maintenance Personnel 1

0 15 0.260 0.000 3.965 Operations Personnel 0

0 1

0.184 0.000 0.472 Supervisory Personnel 0

0 2

0.007 0.000 0.293 Reactor Operations & Surveillance Engineering Personnel 0

0 0

0.025 0.000 0.000 Health Physics Personnel 4

0 1

1.265 0.000 2.080 Maintenance Personnel 0

0 1

0.082 0.000 0.283 Operations Personnel 0

0 0

2.017 0.000 0.285 Supervisory Personnel 0

0 0

0.026 0.000 0.000 Refueling Engineering Personnel 0

0 1

0.037 0.000 0.147 Health Physics Personnel 0

0 0

0.237 0.000 0.457 Maintenance Personnel 0

0 34 0.326 0.000 10.149 Operations Personnel 0

0 0

0.142 0.000 0.098 Supervisory Personnel 0

0 0

0.001 0.000 0.000 Routine Maintenance Engineering Personnel 0

0 0

0.360 0.000 0.067 Health Physics Personnel 0

0 0

0.775 0.000 0.546 Maintenance Personnel 4

0 63 3.367 0.000 20.095 Operations Personnel 0

0 0

1.512 0.000 0.120 Supervisory Personnel 0

0 0

0.050 0.000 0.027 Special Maintenance Engineering Personnel 0

0 1

0.000 0.000 0.115 Health Physics Personnel 2

0 3

0.839 0.000 1.520 Maintenance Personnel 2

0 12 0.975 0.000 4.589 Operations Personnel 0

0 0

0.163 0.000 0.239 Supervisory Personnel 0

0 0

0.001 0.000 0.010 Waste Processing Engineering Personnel 0

0 0

0.000 0.000 0.000 Health Physics Personnel 2

0 0

0.487 0.000 0.005 Maintenance Personnel 0

0 0

0.021 0.000 0.002 Operations Personnel 0

0 0

0.060 0.000 0.000 Supervisory Personnel 0

0 0

0.027 0.000 0.000 Total Engineering Personnel 0

0 2

0.453 0.000 0.400 Health Physics Personnel 8

0 4

3.732 0.000 4.826 Maintenance Personnel 7

0 125 5.031 0.000 39.083 Operations Personnel 0

0 1

4.078 0.000 1.214 Supervisory Personnel 0

0 2

0.112 0.000 0.330 Sub Total 15 0

134 13.406 0.000 45.853 EDE Dose (Multiple Badging) 1.155 0.000 36.140 Grand Total 15 0

134 14.561 0.000 81.993