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Category:Letter type:NG
MONTHYEARNG-23-0010, Supplement to Duane Arnold Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule2023-12-0606 December 2023
Supplement to Duane Arnold Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule
NG-23-0009, Part 73 Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule2023-11-16016 November 2023
Part 73 Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule
NG-23-0006, Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update2023-05-23023 May 2023
Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update
NG-23-0004, 2022 Annual Radioactive Material Release Report2023-04-25025 April 2023
2022 Annual Radioactive Material Release Report
NG-23-0003, 2022 Annual Exposure Report - Form 5s2023-04-21021 April 2023
2022 Annual Exposure Report - Form 5s
NG-23-0002, 10 CFR 50.59 Report, Commitment Changes, 10 CFR 72.48 Report, Quality Assurance Program Changes, Technical Specification Basis Changes, and Revision of the DAEC Defueled Safety Analysis Report2023-03-27027 March 2023
10 CFR 50.59 Report, Commitment Changes, 10 CFR 72.48 Report, Quality Assurance Program Changes, Technical Specification Basis Changes, and Revision of the DAEC Defueled Safety Analysis Report
NG-23-0001, 2023 Annual Decommissioning and Spent Fuel Management Funding Status Report2023-03-27027 March 2023
2023 Annual Decommissioning and Spent Fuel Management Funding Status Report
NG-22-0055, Revision to Duane Arnold Energy Center (DAEC) ISFSI-Only Emergency Plan2022-05-20020 May 2022
Revision to Duane Arnold Energy Center (DAEC) ISFSI-Only Emergency Plan
NG-22-0053, 2021 Annual Radiological Environmental Operating Report2022-05-0606 May 2022
2021 Annual Radiological Environmental Operating Report
NG-22-0052, Regulatory Issue Summary 2000-11. NRC Emergency Telecommunications System, Statement of Intent to Implement the Proposed Voluntary Initiative2022-05-0404 May 2022
Regulatory Issue Summary 2000-11. NRC Emergency Telecommunications System, Statement of Intent to Implement the Proposed Voluntary Initiative
NG-22-0050, Revised Response to Request for Additional Information Relating to Decommissioning Quality Assurance Program, Revision 02022-04-26026 April 2022
Revised Response to Request for Additional Information Relating to Decommissioning Quality Assurance Program, Revision 0
NG-22-0049, 2021 Annual Radioactive Material Release Report2022-04-26026 April 2022
2021 Annual Radioactive Material Release Report
NG-22-0035, Response to Request for Additional Information Relating to Decommissioning Quality Assurance Program. Revision 02022-04-13013 April 2022
Response to Request for Additional Information Relating to Decommissioning Quality Assurance Program. Revision 0
NG-22-0047, Registration of Independent Spent Fuel Installation Storage Cask and Notification of Permanent Removal of All Spent Fuel Assemblies from the Spent Fuel Pool2022-04-11011 April 2022
Registration of Independent Spent Fuel Installation Storage Cask and Notification of Permanent Removal of All Spent Fuel Assemblies from the Spent Fuel Pool
NG-22-0042, Registration of Independent Spent Fuel Installation Storage Casks2022-04-0808 April 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0041, and Independent Spent Fuel Storage Installation, 2022 Annual Decommissioning and Spent Fuel Management Funding Status Report2022-03-31031 March 2022
and Independent Spent Fuel Storage Installation, 2022 Annual Decommissioning and Spent Fuel Management Funding Status Report
NG-22-0031, 2021 Annual Exposure Report - Form 5s2022-03-23023 March 2022
2021 Annual Exposure Report - Form 5s
NG-22-0030, Registration of Independent Spent Fuel Installation Storage Casks2022-03-23023 March 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0025, Registration of Independent Spent Fuel Installation Storage Casks2022-03-0808 March 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0021, Registration of Independent Spent Fuel Installation Storage Casks2022-02-24024 February 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0014, Registration of Independent Spent Fuel Installation Storage Casks2022-02-10010 February 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0009, Registration of Independent Spent Fuel Installation Storage Casks2022-01-20020 January 2022
Registration of Independent Spent Fuel Installation Storage Casks
NG-22-0001, Supplement to Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61BTH Type 2 Dry Shielded Canister2022-01-0606 January 2022
Supplement to Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61BTH Type 2 Dry Shielded Canister
NG-21-0038, Registration of Independent Spent Fuel Installation Storage Casks2021-12-22022 December 2021
Registration of Independent Spent Fuel Installation Storage Casks
NG-21-0035, Supplement to Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61 Bth Type 2 Dry Shielded Canister2021-12-10010 December 2021
Supplement to Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61 Bth Type 2 Dry Shielded Canister
NG-21-0030, Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61 Bth Type 2 Dry Shielded Canister2021-10-21021 October 2021
Exemption Request for Failed Fuel Can Weight in a Certificate of Compliance 1004 Renewed Amendment 17 61 Bth Type 2 Dry Shielded Canister
NG-21-0028, Request for Approval of NextEra Energy Duane Arnold, Llc'S Decommissioning Quality Assurance Program Revision 02021-07-30030 July 2021
Request for Approval of NextEra Energy Duane Arnold, Llc'S Decommissioning Quality Assurance Program Revision 0
NG-21-0010, License Amendment Request (TSCR-192): Independent Spent Fuel Storage Installation (ISFSI) Emergency Plan and Emergency Action Level Scheme2021-06-28028 June 2021
License Amendment Request (TSCR-192): Independent Spent Fuel Storage Installation (ISFSI) Emergency Plan and Emergency Action Level Scheme
NG-21-0026, CFR 72.48 Report of Changes. Tests. and Experiments2021-06-16016 June 2021
CFR 72.48 Report of Changes. Tests. and Experiments
NG-21-0011, Submittal of 2020 Annual Radiological Environmental Operating Report2021-05-0404 May 2021
Submittal of 2020 Annual Radiological Environmental Operating Report
NG-21-0009, Report of Facility Changes. Tests and Experiments. and Commitment Changes2021-04-27027 April 2021
Report of Facility Changes. Tests and Experiments. and Commitment Changes
NG-21-0021, Supplement to License Amendment Request (TSCR-185): Application to Revise Operating License to Remove Cyber Security Plan Requirements2021-04-22022 April 2021
Supplement to License Amendment Request (TSCR-185): Application to Revise Operating License to Remove Cyber Security Plan Requirements
NG-21-0006, 2021 Annual Decommissioning and Spent Fuel Management Funding Status Report2021-03-31031 March 2021
2021 Annual Decommissioning and Spent Fuel Management Funding Status Report
NG-21-0005, NextEra Energy Duane Arnold, LLC - Transmittal of the DAEC Defueled Safety Analysis Report Revision 02021-03-29029 March 2021
NextEra Energy Duane Arnold, LLC - Transmittal of the DAEC Defueled Safety Analysis Report Revision 0
NG-20-0094, License Amendment Request (TSCR-189): Revision to Facility License and Technical Specifications to Reflect Permanent Removal of Spent Fuel from the Spent Fuel Pool2021-02-19019 February 2021
License Amendment Request (TSCR-189): Revision to Facility License and Technical Specifications to Reflect Permanent Removal of Spent Fuel from the Spent Fuel Pool
NG-21-0004, Response to Request for Additional Information Related to Post Shutdown Decommissioning Activities Report2021-02-0505 February 2021
Response to Request for Additional Information Related to Post Shutdown Decommissioning Activities Report
NG-20-0078, Update to Spent Fuel Management Plan Pursuant to 10 CFR 50.54(bb)2021-01-13013 January 2021
Update to Spent Fuel Management Plan Pursuant to 10 CFR 50.54(bb)
NG-20-0101, Request for a One-Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(1)(1) Regarding Annual Force-on-Force (FOF) Exercises, Due to COVID-19 Pandemic2020-12-29029 December 2020
Request for a One-Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(1)(1) Regarding Annual Force-on-Force (FOF) Exercises, Due to COVID-19 Pandemic
NG-20-0099, Response to Request for Additional Information Relating to License Amendment Request (TSCR-187): Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme2020-12-0101 December 2020
Response to Request for Additional Information Relating to License Amendment Request (TSCR-187): Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme
NG-20-0093, Supplement to License Amendment Request (TSCR-187): Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme2020-10-29029 October 2020
Supplement to License Amendment Request (TSCR-187): Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme
NG-20-0090, Certification of Permanent Removal of Fuel from the Reactor Vessel for Duane Arnold Energy Center2020-10-12012 October 2020
Certification of Permanent Removal of Fuel from the Reactor Vessel for Duane Arnold Energy Center
NG-20-0083, Registration of Independent Spent Fuel Installation Storage Casks2020-10-12012 October 2020
Registration of Independent Spent Fuel Installation Storage Casks
NG-20-0069, Response to Request for Additional Information Relating to Request for Exemption from Portions of 10 CFR 50.47 and 10 CFR 50, Appendix E2020-10-0707 October 2020
Response to Request for Additional Information Relating to Request for Exemption from Portions of 10 CFR 50.47 and 10 CFR 50, Appendix E
NG-20-0082, Registration of Independent Spent Fuel Installation Storage Casks2020-09-28028 September 2020
Registration of Independent Spent Fuel Installation Storage Casks
NG-20-0071, Request for One-Time Exemption from 10 CFR 50, Appendix E, Biennial Emergency Preparedness Evaluated Exercise Requirements Due to COVID-19 Pandemic2020-09-22022 September 2020
Request for One-Time Exemption from 10 CFR 50, Appendix E, Biennial Emergency Preparedness Evaluated Exercise Requirements Due to COVID-19 Pandemic
NG-20-0077, Registration of Independent Spent Fuel Installation Storage Casks2020-09-10010 September 2020
Registration of Independent Spent Fuel Installation Storage Casks
NG-20-0073, Notice Regarding Proposed Amendment to Decommissioning Trust Agreements2020-09-0101 September 2020
Notice Regarding Proposed Amendment to Decommissioning Trust Agreements
NG-20-0074, Certification of Permanent Cessation of Power Operations2020-08-27027 August 2020
Certification of Permanent Cessation of Power Operations
NG-20-0067, Registration of Independent Spent Fuel Installation Storage Casks2020-08-12012 August 2020
Registration of Independent Spent Fuel Installation Storage Casks
NG-20-0035, Request for Exemption from 10 CFR 50.54(w)(1)2020-07-16016 July 2020
Request for Exemption from 10 CFR 50.54(w)(1)
2023-05-23
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Text
NEXTera ENERGYP July 24, 2014 NG-14-0187 10 CFR 50.90 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Duane Arnold Energy Center Docket No. 50-331 Renewed Op. License No. DPR-49 Response to Request for Additional Information, Application for Technical Specification Change Regarding Battery Terminal and Charger Voltage and Amperage
References:
- 1) License Amendment Request (TSCR-145): Application for Technical Specification Change Regarding Battery Terminal and Charger Voltage and Amperage, NG-1 3-0297, dated August 29, 2013 (ML13247A275)
- 2) Electronic Communication, Duane Arnold - LAR - TS Change regarding Battery Terminal and Charger Voltage and Amperage -
Request for Additional Information - MF2763, dated April 24, 2014
- 3) Response to Request for Additional Information, Application for Technical Specification Change Regarding Battery Terminal and Charger Voltage and Amperage, NG-14-0140, dated May 28, 2014 (ML In the Reference 1 letter, NextEra Energy Duane Arnold, LLC (hereafter NextEra Energy Duane Arnold) submitted a License Amendment Request for the Duane Arnold Energy Center (DAEC) pursuant to 10 CFR 50.90. Subsequently, the NRC Staff requested, via Reference 2, additional information regarding that application. In Reference 3, NextEra Energy Duane Arnold committed to transmitting additional manufacturer information.
The Enclosure to this letter contains the requested information. A I NextEra Energy Duane Arnold, LLC, 3277 DAEC Road, Palo, IA52324
Document Control Desk NG-14-0187 Page 2 of 2 This additional information does not impact the 10 CFR 50.92 evaluation of "No Significant Hazards Consideration" previously provided in the referenced application.
This letter does not make any new commitments or changes to existing commitments.
If you have any questions or require additional information, please contact J. Michael Davis at 319-851-7032.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on July 24, 2014 Vice President, Duane Arnold Energy Center NextEra Energy Duane Arnold, LLC Enclosure cc: NRC Regional Administrator NRC Resident Inspector NRC Project Manager A. Leek (State of Iowa)
Enclosure 1 to NG-14-0187 Response to Request for Additional Information, Application for Technical Specification Chanae Reaardina Battery Terminal and Charaer Voltaae and Amoeraae 1 page follows
Response to Request for Additional Information, Application for Technical Specification Change Regarding Battery Terminal and Charger Voltage and Amperage As indicated in the attached letter from the Battery Cell Manufacturer, C&D Technologies, Inc., the impacts of equalizing the batteries at 137-137.5 volts are as follows:
- The time required for completing a recharge would be extended.
Since the DAEC only discharges the batteries during extended/refuel outages the equalization/recharge portion of the testing procedures and the equalization will continue until the batteries are properly charged.
- There would be limited mixing of the electrolyte.
As stated above the equalization/recharge portion of the testing procedures and the equalization will continue until the batteries are properly charged. All of the individual cell voltages and specific gravities are verified before the battery is placed back on float charge.
" If there are extended temperature excursions "well below" 770 F, a low equalizing charge can become just a standard recharge voltage with possible undercharge effects if the charge is not maintained long enough.
Again, as stated above the equalization/recharge portion of the testing procedures and the equalization will continue until the batteries are properly charged. In addition, the DAEC battery rooms are located in interior rooms of our control building, with no exterior walls such that a temperature excursion "well below" 770 F is not realistic.
The letter from the manufacturer does not indicate that the lower equalizing voltage will damage the cells in any way, only that the lower voltages will cause the equalization/recharge period to take longer. The DAEC therefore believes that the lower equalizing voltages will not damage nor have a detrimental effect on the batteries as long as we maintain the charge long enough to ensure full equalization.
Page 1
Enclosure 2 to NG-14-0187 Manufacturer's Letter L. Carson to D. Pint, dated July 9, 2014 1 page follows
CmTECHNOLOGIES, INC.
Power Solutions 1400 Union Meeting Road Blue Bell, PA 19422 Phone: (215) 775-1314 Fax: (215) 619-7887 Sent via Email to: Dennis.PintcNEE.com July 9, 2014 Mr. Dennis Pint Duane Arnold Energy Center NextEra Energy Resources
Subject:
Battery Equalizing Voltages
Dear Dennis:
You advised us that you intend to add 2 cells your 58-cell station battery strings. You will be able to float the battery strings in the 132.5 to 133.5 V range (2.208 to 2.225 volts per cell). This will allow the cells to float within the low end of the recommended range of 2.20 to 2.25 volts per cell, based on an ambient temperature of 77 0 F.
For equalizing charge, you advised that the available range will be 137 to 137.5 volts (2.283 to 2.292 volts per cell). This is below the recommended equalizing charge voltage range of 2.33 to 2.38 volts per cell, so you requested if there would be any detrimental effects.
As we discussed, the time required for completing a recharge would be extended when the voltage is limited to 2.29 volts per cell. In addition, there would be limited mixing of the electrolyte, since gassing at that voltage is very light and it would take a long time for the specific gravity reading to be representative of the strength of the electrolyte.
Another concern is that ifthere are extended temperature excursions that are well below 770F, a low equalize charge can become just a standard recharge voltage with possible undercharge effects if the charge is not maintained long enough.
Other than these issues, we would not expect the batteries to be damaged by this practice.
- Regards, Larry A. Carson Utility & Nuclear Product Manager
