ML20091K395
| ML20091K395 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 03/31/2020 |
| From: | Lippard G Dominion Energy South Carolina |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML20091K395 (6) | |
Text
V. C. Summer Nuclear Station Bradham Blvd & Hwy 215, Jenkinsville, SC 29065 Mailing Address:
P.O. Box 88, Jenkinsville, SC 29065 Dominion Energy.com ATIN: Document Control Desk US Nuclear Regulatory Commission Washington, D.C. 20555-001 March 31, 2020 DOMINION ENERGY SOUTH CAROLINA, INC.
VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 DOCKET NO. 50-395 OPERA TING LICENSE NO. NPF-12 ANNUAL OPERA TING REPORT
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Dominion
=--' Energy Serial No.20-116 LIC/TS/RO Docket No. 50-395 License No. NPF-12 Enclosed is the 2019 Annual Operating Report for the Dominion Energy South Carolina, Inc. Virgil C. Summer Nuclear Station Unit No. 1. This report is being submitted in accordance with Technical Specification 6.9.1.4.
If there are any questions, please call Tracey Stewart at (803) 931-5663.
Sincerely,
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Site Vice President V. C. Summer Nuclear Station w/o enclosure unless noted cc:
G. J. Lindamood - Santee Cooper L. Dudes - NRC S. A. Williams - NRC M. L. Thomas - NRC NRC Resident Inspector Marsh USA C. Logan (ANI)
REIRS Project Manager
VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 2019 ANNUAL OPERATING REPORT
PREFACE Serial No.20-116 Docket No. 50-395 VCSNS Annual Operating Report Page 1 of 4 The 2019 Annual Operating Report for the Virgil C. Summer Nuclear Station Unit 1 is hereby submitted in accordance with Technical Specification 6.9.1.4 under Docket Number 50-395 and Facility Operating License NPF-12.
SECTION 1.0 2.0 3.0 4.0 TABLE OF CONTENTS TITLE Introduction Operational Data Operating Summary Failed Fuel Serial No.20-116 Docket No. 50-395 VCSNS Annual Operating Report Page 2 of 4 PAGE 3
3 3
4
1.0 INTRODUCTION
Serial No.20-116 Docket No. 50-395 VCSNS Annual Operating Report Page 3 of4 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, 2019, the station operated at a capacity factor of 97.5% (using maximum dependable capacity) and a unit availability of 95.9% The reactor was critical for a total of 8428.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, the generator remained on line 8402.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> and the total gross electrical energy generated for 2019 was 8,581,185 MWH.
3.0 OPERA TING
SUMMARY
VCSNS Unit No.1 operated at 100% power from January 151through March ath_ On March sth power was reduced to 92% to support quarterly Main Turbine Valve testing and mairitenance on the Main Feedwater Booster Pumper 'D' Motor. Reactor power was restored to 100% power on March 1 Qth.
VCSNS Unit 1 operated at 100% power from March 10th to March 18th_ On March 18th power was reduced to 94% to support maintenance on the Main Feedwater Booster Pump 'D' motor. Reactor power was restored to 100% on March 21st.
VCSNS Unit 1 operated at 100% from March 21 51to June 3rd_ On June 3rd power was reduced to 91 % to support quarterly Main Turbine Valve testing. Reactor power was restored to 100% on June 3rd_
VCSNS Unit 1 operated at 100% from June 3rd to September 30th_ On September 3Qth power was reduced to 90% to support quarterly Main Turbine Valve testing.
Reactor power was restored to 100% on September 30th.
VCSNS Unit 1 operated at 100% from September 30th to November 7th_ On November 7th the plant was shutdown to perform repairs to two failed Reactor Building Cooling Units and repair a Reactor Coolant System leak. The main generator breaker was closed on November 20th at 13:16:57. Reactor power was restored to 100% on November 22nd.
VCSNS Unit 1 operated at 100% from November 22nd to November 28th_ On November 28th the plant was shutdown to perform repairs on a piece of damaged
Serial No.20-116 Docket No. 50-395 VCSNS Annual Operating Report Page 4 of4 instrumentation tubing on a Steam Generator level transmitter. The main generator breaker was closed on November 3Qth at 03:28:27. Reactor power was restored to 100% on December 1st.
The unit remained at 100% power for the remainder of 2019.
Forced Power Reduction > 20% Exceeding 4 Hours On November 7th the plant was taken offline to perform repairs to two failed Reactor Building Cooling Units and repair a Reactor Coolant System leak. The main generator breaker was opened on November 7th, and the outage lasted through November 20th. Reactor power was restored to 100% on November 22nd. The total outage duration was 321.68 hours7.87037e-4 days <br />0.0189 hours <br />1.124339e-4 weeks <br />2.5874e-5 months <br /> On November 28th the plant was taken offline to perform repairs on a piece of damaged instrumentation tubing on a Steam Generator level transmitter. The main generator breaker was opened on November 28th, and the outage lasted through November 3Qth. Reactor power was restored to 100% on December 1st. The total outage duration was 36.02 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
4.0 FAILED FUEL VCSNS did not have any indications of failed fuel in 2019.