MNS-17-038, Startup Ascension Summary Report Measurement Uncertainty Recapture Power Uprate

Startup Ascension Summary Report Measurement Uncertainty Recapture Power Uprate

ML17275A171
Person / Time
Site:	McGuire, Mcguire
Issue date:	09/25/2017
From:	Capps S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
MNS-17-038
Download: ML17275A171 (12)

Text

(~DUKE Steven D. Capps

~

Vice President ENERGY McGuire Nuclear Station Duke Energy MGOl VP I 12700 Hagers Ferry Road Huntersville, NC 28078 O: 980.875.4805 f: 980.875.4809 Steven.Capps@duke-energy.com September 25, 2017 Serial No. MNS-17-038 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTN: Document Control Desk Duke Energy Carolinas, LLC (Duke Energy)

McGuire Nuclear Station, Units 1 and 2 Docket Numbers 50-369 and 50-370 Renewed License Numbers NPF-9 and NPF-17

Subject:

Startup Ascension Summary Report Measurement Uncertainty Recapture Power Uprate On May 16, 2013, the NRC issued License Amendment Nos. 249 and 269 for McGuire Nuclear Station (McGuire), Units 1 and 2, which allowed an increase in the maximum reactor power level from 3411 megawatts thermal (MWth) to 3469 MWth.

Enclosed for your information are the Measurement Uncertainty Recapture (MUR) Power Uprate Startup Ascension Summary Reports. These reports are submitted in accordance with the McGuire Selected Licensee Commitment (SLC) 16.14.1, which requires the submittal of a startup report following an amendment to the license involving a planned increase in power level.

There are no new NRC commitments contained in this letter.

Please direct questions on this matter to Jeff Thomas, Regulatory Affairs Manager, at (980) 875-4499.

Sincerely, JU)~

Steven D. Capps Enclosure www.duke-energy.com

U.S. Nuclear Regulatory Commission MNS-17-038 Page 2 xc (with enclosure and attachments):

C. Haney, Region II Administrator U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Avenue NE, Suite 1200 Atlanta, GA 30303-1257 G. A. Hutto Senior Resident Inspector U.S. Nuclear Regulatory Commission McGuire Nuclear Station M. Mahoney, Project Manager (McGuire)

U.S. Nuclear Regulatory Commission 11555 Rockville Pike Mailstop 8 G9A Rockville, MD 20852-2738 W.L. Cox, Ill Section Chief Division of Environmental Health Radiation Protection Section North Carolina Department of Environment and Natural Resources 1645 Mail Service Center Raleigh, NC 27699

Enclosure Summary This Measurement Uncertainty Recapture (MUR) Power Uprate Startup Ascension Summary Report is being submitted to the NRC in accordance with the McGuire Selected Licensee Commitment (SLC) 16.14.1, which requires the submittal of a startup report following an amendment to the license involving a planned increase in power level.

In accordance with the SLC, the startup report shall address each of the applicable tests identified in the U FSAR Section 14.3 and shall include a description of the measured values of the operating conditions or characteristics obtained during the test program and a comparison of these values with design predictions and specifications. Any corrective actions that were required to obtain satisfactory operation shall also be described. Any additional specific details required in License Conditions based on other commitments shall also be included in this report.

On May 16, 2013, the NRC issued License Amendment Nos. 249 and 269 for McGuire Nuclear Station (McGuire), Units 1 and 2, which allowed an increase in the maximum reactor power level from 3411 megawatts thermal (MWth) to 3469 MWth. A mid-cycle power ascension test was subsequently performed for Unit 2 in November 2013. A post refueling outage power ascension test was subsequently performed for Unit 1 in November 2014. The power ascension test methodology was to increase power gradually in one phase from the pre-MUR 100% power level of 3411 MWth to the new 100% of 3469 MWth.

MUR Power Uprate Background In order to support the MUR power uprate, several plant modifications were performed.

Improved accuracy leading edge flow meter (LEFM) spool pieces were installed on all four feedwater lines. Prior to the uprate, LEFM system data was collected and compared to the existing feedwater flow measurement system (ASME nozzle) to verify consistency. The electrical portion of the LEFM system was installed including Operator Aid Computer (OAC) software modifications.

In addition, the High Pressure Turbines were replaced, the Main Generator Stators were refurbished, and Stator cooling water systems were replaced on both Units. These improvements were made to obtain the new 100% power level during peak summer operating conditions.

MUR Power Uprate Ascension Testing An extensive testing and monitoring plan was developed and executed to verify performance of the new LEFMs, monitor plant performance, identify any anomalies, and ensure adequate margin is maintained.

The Unit 2 uprate was performed prior to Unit 1 and as a mid-cycle uprate. The uprate test procedure for Unit 2 began on October 24, 2013. The evolution was controlled via test procedures TT/2/A/105886/001 and TT/2/A/105886/003. The new 100% power level 1

(3469MWt) was reached on November 20, 2013. A summary of the activities performed under these test procedures included:

• Rescaling of Main Steam and Feedwater flow indications on the OAC and the Ovation Distributed Control System (DCS)

• Calibration of the Feedwater flow transmitters

• Calibration of the 7300 P-13 Interlock and C-5 Permissive setpoints

• Rescaling of Turbine Inlet Pressure and Runback parameters in the Turbine Control System and DCS, as applicable, including calibration of Turbine Inlet Pressure Switches that provide input to AMSAC and Main Generator Lockout permissives.

• Implementation of OAC changes to revise rated thermal power to 3469MWt and switch to LEFM for use in thermal power best estimate (TP8E) calculations.

• Calibration of Intermediate and Power Range nuclear instrumentation.

• Calibration of Wide Range Neutron Flux monitors

• Calibration of 7300 Delta-Temperature (D/T) gains

• Calibration of Primary to Secondary Leakage Radiation Monitors

• Adjustment of the Turbine Governor Valve curve The Unit 1 uprate activities above (rescaling and calibrations) were performed during the M1 R23 refueling outage in September 2014. The evolution was controlled via test procedure TT/1/A/105885/001. The uprate test procedure began on September 13, 2014. Startup of Unit 1 coming out of the outage was performed as usual until 98.3% RTP (3411 MWt) was reached.

The new 100% power level (3469MWt) was reached on November 23, 2014 after the refueling outage.

Prior to increasing power to the new 100% RTP (3469MWt), data was collected on each unit for hundreds of variables for use in comparison to operation at the new uprate conditions. System Engineers were assigned parameters to monitor during power ascension and walkdowns were performed to monitor for any system anomalies. Power was slowly increased from the 98.3%

RTP (3411 MWt) to the new MUR 100% RTP (3469MWt). Once the new 100% power level was reached, Reactor Engineering performed a manual TP8E calculation and flux map (Core power distribution). Additionally, data was collected at the new 100% power level for comparison with the pre-uprate conditions.

The data collected was compared to acceptance criteria or existing alarm limits. Engineering evaluated the data to verify that adequate margin was maintained and that there were no unexpected performance issues. Attachment 1 is a summary of the results for key parameters for which criteria were established. Summary of the core power distribution test results before and after the uprate for each Unit are provided in Attachment 2.

During the Unit 2 uprate, two parameters were slightly out of tolerance; 2A and 28 Reactor Coolant System (NC) loop average narrow range hot leg temperature. Engineering ev~luated these deviations and determined they were acceptable based on 2A and 28 NC loop average temperature$ being acceptable and the presence of noise in the signals. Similar Unit 1 uprate parameters were closely monitored by Engineering and evaluated to be acceptable also.

USFAR Section 14.3 testing was considered when determining the required testing to be performed for the power uprate. Since both Units performed power ascension from the old 100%, no Zero Power Test Phase (UFSAR Section 14.3.2) activities were performed. Similarly, the Flux Symmetry Check - Low Power, Core Power Distribution - Intermediate Power, and Hot 2

Zero Power (HZP) to Hot Full Power (HFP) Reactivity Difference (UFSAR Section 14.3.3) tests were not applicable. Core Power Distribution - High Power was performed before and after the uprate.

No significant performance or margin concerns were identified and no corrective actions were required. Summary of core power distribution test results before and after the uprate for each Unit are provided in Attachment 2.

Conclusion Overall plant performance during power ascension and at the uprated power level was verified to be acceptable and as predicted for each Unit. No corrective actions were required. All test procedures on each Unit were completed successfully.

3

ATTACHMENT 1 Summary of Uprate Data Unit 1 Uprate Data NC = Reactor Coolant CF =Feedwater Pre- Post-Parameter (EU) Expected Change I Criteria uprate uprate U1 REACTOR THERMAL after uprate 3459 MWt to 3469 MWt 3410.2 3467.0 POWER, BEST (MWt)

U1 REACTOR THERMAL after uprate 99. 7% to 100% 98.41 99.97 POWER, BEST(%)

U1 THERMAL POWER BEST, 5 MIN RUNNING after uprate 99.7% to 100% 98.39 99.94 AVG(%)

3469 MWt recorded value is 1.0265 times U1TOTALFEEDWATER recorded value at 3411 MWt; Tolerance:+/- 0.4 15.33 15.58 FLOW (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 1A SIG CF FLOW recorded value at 3411 MWt; Tolerance: +/- 0.1 3.70 3.77 AVERAGE (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 1B SIG CF FLOW recorded value at 3411 MWt; Tolerance: +/- 0.1 3.90 3.99 AVERAGE (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 1C SIG CF FLOW recorded value at 3411 MWt; Tolerance:+/- 0.1 3.80 3.87 AVERAGE (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 1D SIG CF FLOW recorded value at 3411 MWt; Tolerance:+/- 0.1 3.80 3.88 AVERAGE (MLBIHR)

MLBIHR U1 TOTAL MAIN STEAM 3469 MWt recorded value is 1.0265 times FLOW, MEASURED recorded value at 3411 MWt; Tolerance:+/- 0.2 15.06 15.32 (MLBIHR) MLBIHR 1A SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 96.9 98.9 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

1B SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 104.5 106.5 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 .%

1C SIG MAIN STEAM 3469 MWt recorded value is 1 .0265 times 100.2 102.1 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

1D SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 100.4 102.2 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

1A SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than 437.2 438.5 HEADER TEMP (°F) value at 3411 MWt; Tolerance:+/- 1 Deg. F 1B SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than HEADER TEMP (°F) 437.7 439.0 value at 3411 MWt; Tolerance:+/- 1 Deg. F 1C SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than HEADER TEMP (°F) 437.0 438.3 value at 3411 MWt; Tolerance:+/- 1 Deg. F 4

Pre- Post-Parameter (EU) Expected Change I Criteria uprate uprate 1D SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than HEADER TEMP (°F) 436.2 437.5 value at 3411 MWt; Tolerance:+/- 1 Deg. F U1 SIG FINAL 3469 MWt recorded value is 2 Deg. F higher than 437.0 438.3 FEEDWATER TEMP (°F) value at 3411 MWt; Tolerance: +/- 1 Deg. F 3469 MWt recorded value is 0.995 times U1 MAIN STEAM recorded value at 3411 MWt; Tolerance:+/- 20 1001.2 1000.0 PRESSURE (PSIA)

PSIA 1A SIG AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance:+/- 20 1011.2 1011.0 (PSIA) PSIA 18 SIG AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance:+/- 20 1011.3 1011.2 (PSIA) PSIA 1C SIG AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance:+/- 20 1012.8 1013.2 (PSIA) PSIA 1D SIG AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance:+/- 20 1011.7 1011.9 (PSIA) PSIA U1 PIR AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 4 98.5 100.2 recorded value at 3411 MWt Tolerance:+/- 1 %

(N-41)(%)

U1 PIR AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 2 98.6 100.3 recorded value at 3411 MWt Tolerance:+/- 1 %

(N-42) (%)

U1 PIR AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 1 98.5 100.3 recorded value at 3411 MWt Tolerance: +/- 1 %

(N-43) (%)

U1 PIR AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 3 98.5 100.3 recorded value at 3411 MWt Tolerance: +/- 1 %

(N-44) (%)

1A NC LOOP NARROW RANGE COLD LEG System Engineer evaluated for acceptability. 554.1 554.2 TEMP (°F) 1B NC LOOP NARROW RANGE COLD LEG System Engineer evaluated for acceptability. 554.9 555.1 TEMP (°F) 1C NC LOOP NARROW RANGE COLD LEG System Engineer evaluated for acceptability. 554.7 554.8 TEMP (°F) 1D NC LOOP NARROW RANGE COLD LEG System Engineer evaluated for acceptability. 554.6 554.8 TEMP (°F) 1A NC LOOP AVERAGE NIR HOT LEG System Engineer evaluated for acceptability. 612.9 613.6 TEMPERATURE (°F) 1B NC LOOP AVERAGE NIR HOT LEG System Engineer evaluated for acceptability. 613.5 614.2 TEMPERATURE (°F) 1C NC LOOP AVERAGE NIR HOT LEG System Engineer evaluated for acceptability. 613.1 614.5 TEMPERATURE (°F) 5

Pre- Post-Parameter (EU) Expected Change I Criteria uprate uprate 10 NC LOOP AVERAGE N/R HOT LEG System Engineer evaluated for acceptability. 612.5 613.1 TEMPERATURE (°F) 1A NC LOOP AVERAGE System Engineer evaluated for acceptability. 583.9 584.3 TEMP (°F) 1B NC LOOP AVERAGE System Engineer evaluated for acceptability. 584.6 585.2 TEMP (°F) 1C NC LOOP AVERAGE System Engineer evaluated for acceptability. 584.8 585.3 TEMP (°F) 1D NC LOOP AVERAGE '

System Engineer evaluated for acceptability. 584.3 584.9 TEMP (°F) 3469 MWt recorded value is equal to the U1 NC FLOW BEST 10 recorded value at 3411 MWt; Tolerance: +/-2% (+/- 398,034 397,958 MIN AVG (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 1A NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 97,038 97, 118 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 1B NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 101,153 101,407 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 1C NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 100,012 100,068 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 1D NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 99,676 99,511 FLOW, BEST (GPM) 7800 GPM)

U2 TURBINE INLET Verify pressure at 3469 MWt is 917.5 psig; 904.9 922.1 PRESSURE (PSIG) Tolerance: +/- 9.2 psig Engineering will confirm expected output for UNIT 1 GENERATOR plants ambient and subsequent condenser water 1215.6 1234.6 MEGAWATTS (MW) condition 1A CF PUMP SUCTION Pump Suction Flow equals recorded flow at 3411 17,452 17,761 FLOW (GPM) MWt times 1.0265; Tolerance: +/- 360 GPM 1A CF PUMP SUCTION Pump Suction Temperature is at recorded 357.1 358.1 TEMP (°F) temperature at 3411 MWt; Tolerance: + 3 I -1 °F 1B CF PUMP SUCTION Pump Suction Flow equals recorded flow at 3411 17,616 17,927 FLOW (GPM) MWt times 1.0265; Tolerance:+/- 360 GPM 1B CF PUMP SUCTION Pump Suction Temperature is at recorded 354.6 355.6 TEMP (°F) temperature at 3411 MWt; Tolerance:+ 3 I -1 °F 6

Attachment 1 Unit 2 Summary of Uprate Data NC = Reactor Coolant CF =Feedwater Pre- Post-Parameter (EU) Expected Change I Criteria uprate uprate U2 REACTOR THERMAL after uprate 3459 MWt to 3469 MWt 3408.91 3466.87 POWER, BEST (MWt)

U2 REACTOR THERMAL after uprate 99. 7% to 100% 98.25 99.94 POWER, BEST(%)

U2 THERMAL POWER BEST, 5 MIN RUNNING after uprate 99. 7% to 100% 98.19 99.94 AVG(%)

3469 MWt recorded value is 1.0265 times U2TOTALFEEDWATER recorded value at 3411 MWt; Tolerance:+/- 0.2 15.17 15.45 FLOW (MLB/HR)

MLB/HR 3469 MWt recorded value is 1.0265 times 2A S/G CF FLOW recorded value at 3411 MWt; Tolerance:+/- 0.1 3.96 4.02 AVERAGE (MLB/HR)

MLBIHR 3469 MWt recorded value is 1.0265 times 2B SIG CF FLOW recorded value at 3411 MWt; Tolerance: +/- 0.1 3.65 3.72 AVERAGE (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 2C SIG CF FLOW recorded value at 3411 MWt; Tolerance:+/- 0.1 3.89 3.96 AVERAGE (MLBIHR)

MLBIHR 3469 MWt recorded value is 1.0265 times 2D SIG CF FLOW recorded value at 3411 MWt; Tolerance:+/- 0.1 3.68 3.75 AVERAGE (MLBIHR)

MLBIHR U2 TOTAL MAIN STEAM 3469 MWt recorded value is 1.0265 times FLOW, MEASURED recorded value at 3411 MWt; Tolerance:+/- 0.2 15.03 15.31 (MLBIHR) MLBIHR 2A SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 102.2 104.6 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

2B SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 93.8 95.7 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

2C SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 99.5 101.8 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

2D SIG MAIN STEAM 3469 MWt recorded value is 1.0265 times 96.1 97.3 FLOW CH 1 (%) recorded value at 3411 MWt; Tolerance:+/- 2 %

2A SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than 437.3 438.8 AVERAGE TEMP (°F) value at 3411 MWt; Tolerance:+/- 1 Deg. F 2B SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than AVERAGE TEMP (°F) 437.1 438.6 value at 3411 MWt; Tolerance: +/- 1 Deg. F 2C SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than AVERAGE TEMP (°F) 437.2 438.7 value at 3411 MWt; Tolerance: +/- 1 Deg. F 2D SIG FEEDWATER 3469 MWt recorded value is 2 Deg. F higher than AVERAGE TEMP (°F) 437.2 438.7 value at 3411 MWt; Tolerance:+/- 1 Deg. F 7

Pre- Post-Parameter (EU} Expected Change I Criteria uprate uprate U2 S/G FINAL 3469 MWt recorded value is 2 Deg . F higher than FEEDWATER AVERAGE 437.2 438.7 value at 3411 MWt; Tolerance: +/- 1 Deg . F TEMP (°F) 3469 MWt recorded value is 0.995 times U2 MAIN STEAM recorded value at 3411 MWt; Tolerance : +/- 20 994.4 991 .0 PRESSURE (PSIA)

PSIA 2A S/G AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance: +/- 20 1007.3 1003.1 (PSIA) PSIA 28 S/G AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance: +/- 20 1006.0 1001 .9 (PSIA) PSIA 2C SIG AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance: +/- 20 1006.8 1002.6 (PSIA) PSIA 2D S/G AVERAGE 3469 MWt recorded value is 0.995 times STEAM PRESSURE recorded value at 3411 MWt; Tolerance : +/- 20 1007.1 1002.7 (PSIA) PSIA U2 P/R AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 4 98.9 99 .7 recorded value at 3411 MWt Tolerance:+/- 1 %

(N-41)(%)

U2 P/R AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 2 98 .6 99 .6 recorded value at 3411 MWt Tolerance: +/- 1 %

(N-42) (%)

U2 P/R AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 1 99.0 99.9 recorded value at 3411 MWt Tolerance: +/- 1 %

(N-43) (%)

U2 P/R AVG LEVEL 1 3469 MWt recorded value is 1.0173 times MIN AVG QUADRANT 3 98 .8 99 .8 recorded value at 3411 MWt Tolerance : +/- 1 %

(N-44) (%)

2A NC LOOP NARROW Tcold at 3469 MWt is 0.5 °F less than at 3411 RANG E COLD LEG 555 .1 554.8 MWt; Tol erance: +/- 0.2 °F TEMP (°F) 28 NC LOOP NARROW Tcold at 3469 MWt is 0.5 °F less than at 3411 RANGE COLD LEG 554 .8 554.4 MWt; Tolerance : +/- 0.2 °F TEMP (°F) 2C NC LOOP NARROW Tcold at 3469 MWt is 0.5 °F less than at 3411 RANGE COLD LEG 554.0 553 .6 MWt; Tolerance : +/- 0.2 °F TEMP (°F) 2D NC LOOP NARROW Tcold at 3469 MWt is 0.5 °F less than at 3411 RANGE COLD LEG 554.0 553 .7 MWt; Tolerance: +/- 0.2 °F TEMP (°F) 2A NC LOOP AVERAGE Thot at 3469 MWt is 0.5 °F more than at 3411 N/R HOT LEG MWt; Tolerance : +/- 0.2 °F. 616 .0 617.0 TEM PERATURE (°F) Acceptability evaluated by Engineering.

28 NC LOOP AVERAGE Thot at 3469 MWt is 0.5 °F more than at 3411 N/R HOT LEG MWt; Tol erance : +/- 0.2 °F. 612.4 613.2 TEMPERATURE (°F) Acceptability evaluated by Engineering .

2C NC LOOP AVERAGE Thot at 3469 MWt is 0.5 °F more than at 3411 N/R HOT LEG 615 .2 615.9 MWt; Tolerance : +/- 0.2 °F TEMPERATURE (°F) 8

Pre- Post-Parameter (EU) Expected Change I Criteria uprate uprate 20 NC LOOP AVERAGE Thot at 3469 MWt is 0.5 °F more than at 3411 N/R HOT LEG 611.9 612.4 MWt; Tolerance:+/- 0.2 °F TEMPERATURE (°F) 2A NC LOOP AVERAGE Thot at 3469 MWt is same as at 3411 MWt; 585.9 586.1 TEMP (°F) Tolerance:+/- 0.2 °F 2B NC LOOP AVERAGE Thot at 3469 MWt is same as at 3411 MWt; 583.8 584.0 TEMP (°F) Tolerance:+/- 0.2 °F 2C NC LOOP AVERAGE Thot at 3469 MWt is same as at 3411 MWt; 584.8 584.7 TEMP (°F) Tolerance:+/- 0.2 °F 20 NC LOOP AVERAGE That at 3469 MWt is same as at 3411 MWt; 583.0 583.0 TEMP (°F) Tolerance:+/- 0.2 °F 3469 MWt recorded value is equal to the U2 NC FLOW BEST 10 recorded value at 3411 MWt; Tolerance: +/-2% (+/- 392,034 391 ,825 MIN AVG (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 2A NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 98,261 98,628 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 2B NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 96,837 97,430 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 2C NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 97,648 97,910 FLOW, BEST (GPM) 7800 GPM) 3469 MWt recorded value is equal to the 20 NC LOOP COOLANT recorded value at 3411 MWt; Tolerance: +/-2% (+/- 98,652 98,630 FLOW, BEST (GPM) 7800 GPM)

U2 TURBINE INLET Verify pressure at 3469 MWt is 917.5 psig; 900.7 918.5 PRESSURE (PSIG) Tolerance: +/- 9.2 psig Engineering will confirm expected output for UNIT 2 GENERATOR plants ambient and subsequent condenser water 1205.3 1227.5 MEGAWATTS (MW) condition 2A CF PUMP SUCTION Pump Suction Flow equals recorded flow at 3411 18,003 18,285 FLOW (GPM) MWt times 1.0265; Tolerance:+/- 360 GPM 2A CF PUMP SUCTION Pump Suction Temperature is at recorded 356.3 357.4 TEMP (°F) temperature at 3411 MWt; Tolerance: + 3 I -1 °F 2B CF PUMP SUCTION Pump Suction Flow equals recorded flow at 3411 15,931 16,268 FLOW (GPM) MWt times 1.0265; Tolerance:+/- 360 GPM 2B CF PUMP SUCTION Pump Suction Temperature is at recorded 357.0 358.0 TEMP (°F) temperature at 3411 MWt; Tolerance:+ 3 I -1 °F 9

ATTACHMENT 2 Summary of Core Power Distribution Testing Unit 1 Test Results Core Power Distribution Results Date 11/20/2014 12/22/2014 Power 3397 MWth 3463 MWth Core Burnup 3 EFPD 33 EFPD Reaction Rate Error, Max 6.68 % 5.67 %

Reaction Rate Error, RMS 1.43 % 1.63 %

Heat Flux Hot Channel Factor (Fa) 1.738 1.730 Nuclear Enthalpy Rise Hot Channel Factor (F11H) 1.479 1.456 Axial Offset 3.755 % 2.745 %

Max Quadrant Power Tilt Ratio 1.00511 1.00861 Fa Operational Margin 7.92 % 8.81 %

Fa RPS Margin 14.55 % 17.28 %

Fa Steady State Margin 26.30 % 25.20 %

F11H Surveillance Margin 13.66 % 15.16 %

F11H Steady State Marqin 20.22% 21.74%

Unit 2 Test Results Core Power Distribution Results Date 11/04/2013 12/02/2013 Power 3405 MWth 3467 MWth Core Burnup 328 EFPD 356 EFPD Reaction Rate Error, Max 4.34% 3.99 %

Reaction Rate Error, RMS 2.11 % 1.86 %

Heat Flux Hot Channel Factor (Fa) 1.708 1.729 Nuclear Enthalpy Rise Hot Channel Factor (F11H) 1.477 1.485 Axial Offset -1.475 % -1.781 %

Max Quadrant Power Tilt Ratio 1'.00266 1.00119 .

Fa Operational Marqin 10.11 % 8.34%

Fa RPS Margin 17.75 % 17.86 %

Fa Steady State Margin 28.61 % 27.92 %

FliH Surveillance Marqin 14.71 % 13.15 %

F11 H Steady State Margin 22.32% 21.86 %

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