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{{#Wiki_filter:Datasheet 1Signature: Shawn Harwell Date: 8/3/2011Signature: Aaron L. Szabo Date: 8/15/2011Spreadsheet created by: Aaron Szabo, Shawn HarwellFormulas verified by: Clayton Pittiglio 1 2% Owned:Category: 100.00%2 3 4 2.00%5 6Any modifications to a licensee's method of providing decommissioning funding assurance? (Y/N) 7Plant name:Byron Station, Unit 250-455RAI Needed (Y/N)PUC Verified (Y/N)noneDocket Number:Did the licensee identify the amount of estimated radiological funds? (Y/N)The minimum financial assurance (MFA) estimate pursuant to 10 CFR 50.75(b) & (c):
{{#Wiki_filter:Datasheet 1 Plant name:                                   Byron Station, Unit 2                                                Docket Number:                                     50-455 1
1Escalation RateAllowed through Decom (Y/N) 2  Removed Parent Company Guarantee. Financial assurance is provided by a prepayment method, coupled with an external trust fund. No further review required.
1      The minimum financial assurance (MFA) estimate pursuant to 10 CFR 50.75(b) & (c):                                                           $477,516,000 Did the licensee identify the amount of estimated radiological funds? (Y/N)                                                           Y 2                The total amount of dollars accumulated at the end of the appropriate year: (see below)
Y$477,516,000The total amount of dollars accumulated at the end of the appropriate year: (see below)
Licensee:          % Owned: Category:                      Amount in Trust Fund:
NAssumptions used in determining rates of escalation in decommissioning costs, rates of earnings on decommissioning funds, and rates of other factors used in funding projections: (see below)Any contracts upon which the licensee is relying? (Y/N)Schedule of the annual amounts remaining to be collected: (provided/none)Rate of Return on EarningsAllowed through Decom (Y/N)Rate(s) of Other Factors$244,915,000Real Rate of ReturnPUC Verified (Y/N)1  Licensee calculated MFA higher than NRC calculations. Justification, including factors used, were provided to NRC for review. No further review required.Exelon Generation Company, LLCLicensee:$244,915,000Amount in Trust Fund:
Exelon Generation 100.00%          2                          $244,915,000 Company, LLC Total Trust Fund Balance        $244,915,000 3      Schedule of the annual amounts remaining to be collected: (provided/none)                                                                         none 4      Assumptions used in determining rates of escalation in decommissioning costs, rates of earnings on decommissioning funds, and rates of other factors used in funding projections: (see below)
NAny material changes to trust agreements? (Y/N)If a change has occurred, the reviewer will document on this sheet that a change has occurred and identify the reviewer who will evaluate the change: (see below)
Post-RAI Rate of                 Rate(s) of                   PUC                                      RAI        PUC        Allowed          Rates Escalation                  Real Rate                  Allowed through Decom Return on                   Other                    Verified                                Needed      Verified      through      Determined Rate                    of Return                          (Y/N)
Y 2Post-RAIRates Determined (Y/N)Total Trust Fund Balance Datasheet 2Signature:  Shawn HarwellDate:  8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011Spreadsheet created by: Aaron Szabo, Shawn HarwellFormulas verified by: Clayton PittiglioMonth:1211PWR 3586$105,000,000111.32.080.652.321.676191.4114.23.049250.082.00.132.2530.2212.28% Owned:Category100.00%2 2%15.85 2%2%2%7$360,126,674($296,421,326)Shortfall:
Earnings                  Factors                    (Y/N)                                     (Y/N)     (Y/N)     Decom (Y/N)       (Y/N) 2.00%
NODoes Licensee Pass:
5      Any contracts upon which the licensee is relying? (Y/N)                                                                                            N 6      Any modifications to a licensee's method of providing decommissioning funding assurance? (Y/N)                                                      Y2 7      Any material changes to trust agreements? (Y/N)                                                                                                     N If a change has occurred, the reviewer will document on this sheet that a change has occurred and identify the reviewer who will evaluate the change: (see below) 1 Licensee calculated MFA higher than NRC calculations. Justification, including factors used, were provided to NRC for review. No further review required.
Does Licensee Pass:
2 Removed Parent Company Guarantee. Financial assurance is provided by a prepayment method, coupled with an external trust fund. No further review required.
NOTotal of Steps 1 thru 3:Number of Annual Payments:Accumulation:Step 2:Earnings Credit:$244,915,000Decom Period:
Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo                                                                                                                  Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011                                                                                                                                          Formulas verified by: Clayton Pittiglio
$0Total AnnuityReal Rate of Return per yearTotal Fund Balance:$244,915,000Total Step 1 + Step 2$335,206,475$24,920,199Total Earnings for Decom:Decom Period:Total Earnings:Real Rate of Return per yearLatest Month PxAmount of NRC Minimum/Site Specific:BWR/PWRMWthExelon Generation Company, LLCTotal Annuity:Step 3:$244,915,000Amount in Trust Fund:
 
$0Total Earnings:$335,206,475Real Rate of Return per year FxSite Specific:$656,548,000Total Step 2:Years Left in License15.85Real Rate of Return per yearDoes Licensee Pass:
Datasheet 2 Plant name:                                    Byron Station, Unit 2                                        Docket Number:                  50-455 Month:                Day                    Year:
NO$0$335,206,475Years remaining after annuity Px50-455 631Termination of Operations:2026 1986$DayBase FxPlant name:Value of Annuity per year (amount/See Annuity Sheet)Licensee:$656,548,000NRC Minimum:$472,417,086Trust Fund Balance:Step 1: Bx Ex LxECIBase LxBase Px2010Year:Byron Station, Unit 2Docket Number:Date of Operation:Latest Month Fx Datasheet 2Signature: Shawn HarwellDate: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011Spreadsheet created by: Aaron Szabo, Shawn HarwellFormulas verified by: Clayton PittiglioMonth:121150-455 631Termination of Operations:2026DayPlant name:2010Year:Byron Station, Unit 2Docket Number:Date of Operation:2.00%15.852.00%2.00%2.00%7Real Rate of Return per yearAccumulation:Value of Annuity per year$244,915,000Total Annuity:Number of Annual Payments:Step 5:Real Rate of Return per yearTotal Earnings:$335,206,475 NOIf licensee is granted greater than 2% RRR NO$24,920,199Total Step 5Total of Steps 4 thru 6:$360,126,674Does Licensee Pass:Total Earnings:15.85 0$335,206,475
Date of Operation:                                   12                  31                      2010 Termination of Operations:                                 11                  6                      2026 Latest                      Latest BWR/PWR          MWth          1986$            ECI      Base Lx                      Lx          Px                Base Px    Fx              Base Fx      Ex                Bx Month Px                    Month Fx PWR          3586      $105,000,000        111.3        2.08        0.65        2.32        1.676      191.4    114.2   3.049    250.0    82.0  0.13 2.253 0.22      12.28 NRC Minimum:                              $472,417,086                                Site Specific:                         $656,548,000 Amount of NRC Minimum/Site Licensee:             % Owned:       Category                  Specific:               Amount in Trust Fund:
$0$0Decom Period:Step 6:$335,206,475
Exelon Generation 100.00%            2                  $656,548,000                    $244,915,000 Company, LLC Total Fund Balance:         $244,915,000 Step 1:
$0Does Licensee Pass:Real Rate of Return per year NOTotal Step 4 + Step 5Total Earnings for Decom:Decom Period:Total AnnuityDoes Licensee Pass:Trust Fund Balance:Years Left in LicenseShortfall:($296,421,326)Real Rate of Return per yearYears remaining after annuity$0Earnings Credit:Step 4:
Earnings Credit:
Signature: Shawn HarwellDate: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011 11 6 20262.00%2.00%Cost in 2010 dollarsSpent Fuel 2026$334,176,580$7,778,000N/A2.00%$333,004,332 2027$333,004,332$57,569,000N/A2.00%$281,519,729 2028$281,519,729$34,472,000N/A2.00%$252,333,403 2029$252,333,403$3,682,000N/A2.00%$253,661,251 2030$253,661,251$3,682,000N/A2.00%$255,015,656 2031$255,015,656$3,682,000N/A2.00%$256,397,149 2032$256,397,149$3,686,000N/A2.00%$257,802,232 2033$257,802,232$3,673,000N/A2.00%$259,248,547 2034$259,248,547$3,673,000N/A2.00%$260,723,788 2035$260,723,788$3,673,000N/A2.00%$262,228,534 2036$262,228,534$3,683,000N/A2.00%$263,753,274 2037$263,753,274$3,673,000N/A2.00%$265,318,610 2038$265,318,610$3,673,000N/A2.00%$266,915,252 2039$266,915,252$3,673,000N/A2.00%$268,543,827 2040$268,543,827$3,683,000N/A2.00%$270,194,874 2041$270,194,874$3,673,000N/A2.00%$271,889,041 2042$271,889,041$3,673,000N/A2.00%$273,617,092 2043$273,617,092$3,660,000N/A2.00%$275,392,834 2044$275,392,834$3,670,000N/A2.00%$277,193,990 2045$277,193,990$3,660,000N/A2.00%$279,041,270 2046$279,041,270$3,660,000N/A2.00%$280,925,496 2047$280,925,496$3,660,000N/A2.00%$282,847,406 2048$282,847,406$3,670,000N/A2.00%$284,797,654 2049$284,797,654$3,660,000N/A2.00%$286,797,007 2050$286,797,007$3,660,000N/A2.00%$288,836,347 2051$288,836,347$3,660,000N/A2.00%$290,916,474 2052$290,916,474$3,670,000N/A2.00%$293,028,103 2053$293,028,103$3,660,000N/A2.00%$295,192,065 2054$295,192,065$3,660,000N/A2.00%$297,399,307 2055$297,399,307$3,660,000N/A2.00%$299,650,693 2056$299,650,693$3,670,000N/A2.00%$301,937,007 2057$301,937,007$3,660,000N/A2.00%$304,279,147 2058$304,279,147$3,660,000N/A2.00%$306,668,130 2059$306,668,130$3,660,000N/A2.00%$309,104,892 2060$309,104,892$3,670,000N/A2.00%$311,580,290 2061$311,580,290$3,660,000N/A2.00%$314,115,296 2062$314,115,296$3,660,000N/A2.00%$316,701,002Real Rate of ReturnEnd of Year Trust Fund BalanceEnd of Operations Balance:$335,206,475Operating Life Real Rate of Return:Decommissioning Real Rate of Return:YearBeginning Trust Fund BalanceExpense Per YearDate of Termination of OperationsSAFSTOR ANALYSISName of Unit:Byron, Unit 2Name of Licensee:EGC Signature:  Shawn HarwellDate:  8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011 2063$316,701,002$3,660,000N/A2.00%$319,338,422 2064$319,338,422$3,670,000N/A2.00%$322,018,490 2065$322,018,490$3,660,000N/A2.00%$324,762,260 2066$324,762,260$3,660,000N/A2.00%$327,560,905 2067$327,560,905$3,660,000N/A2.00%$330,415,523 2068$330,415,523$3,670,000N/A2.00%$333,317,134 2069$333,317,134$3,660,000N/A2.00%$336,286,877 2070$336,286,877$3,660,000N/A2.00%$339,316,014 2071$339,316,014$3,660,000N/A2.00%$342,405,734 2072$342,405,734$3,670,000N/A2.00%$345,547,149 2073$345,547,149$3,660,000N/A2.00%$348,761,492 2074$348,761,492$3,660,000N/A2.00%$352,040,122 2075$352,040,122$3,660,000N/A2.00%$355,384,324 2076$355,384,324$3,670,000N/A2.00%$358,785,311 2077$358,785,311$3,660,000N/A2.00%$362,264,417 2078$362,264,417$13,930,000N/A2.00%$355,440,405 2079$355,440,405$36,308,000N/A2.00%$325,878,134 2080$325,878,134$95,253,000N/A2.00%$236,190,166 2081$236,190,166$79,191,000N/A2.00%$160,931,060 2082$160,931,060$61,556,000N/A2.00%$101,978,121 2083$101,978,121$61,556,000N/A2.00%$41,846,123 2084$41,846,123$29,171,000N/A2.00%$13,220,336 2085$13,220,336$38,000N/A2.00%$13,446,362 2086$13,446,362$38,000N/A2.00%$13,676,910 2087$13,676,910$12,000N/A2.00%$13,938,328}}
Real Rate of Return Years Left Trust Fund Balance:        per year      in License      Total Earnings:        Does Licensee Pass:
      $244,915,000                2%            15.85          $335,206,475                  NO Step 2:
Accumulation:
Value of Annuity per year (amount/See Annuity     Real Rate of Return    Number of Annual Sheet)               per year              Payments:              Total Annuity:
2%                                              $0 Real Rate of Return  Years remaining after Total Annuity            per year                annuity                Total Step 2:
            $0                    2%                    15.85                      $0 Total Step 1 + Step 2    Does Licensee Pass:
                                                                              $335,206,475                  NO Step 3:
Decom Period:
Real Rate of Return  Decom        Total Earnings for Total Earnings:           per year        Period:           Decom:
      $335,206,475                2%              7            $24,920,199 Total of Steps 1 thru 3:   Does Licensee Pass:      Shortfall:
                                                                              $360,126,674                  NO            ($296,421,326)
Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo                                                                                                                                                  Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011                                                                                                                                                                          Formulas verified by: Clayton Pittiglio
 
Datasheet 2 Plant name:                                       Byron Station, Unit 2                                        Docket Number:           50-455 Month:                Day                    Year:
Date of Operation:                                       12                  31                      2010 Termination of Operations:                                      11                  6                      2026 If licensee is granted greater than 2% RRR Step 4:
Earnings Credit:
Real Rate of Return Years Left Trust Fund Balance:            per year       in License      Total Earnings:        Does Licensee Pass:
      $244,915,000                  2.00%            15.85          $335,206,475                  NO Step 5:
Accumulation:
Real Rate of Return   Number of Annual Value of Annuity per year          per year              Payments:              Total Annuity:
              $0                    2.00%                     0                        $0 Real Rate of Return  Years remaining after Total Annuity                per year                annuity                Total Step 5
              $0                    2.00%                  15.85                     $0 Total Step 4 + Step 5    Does Licensee Pass:
                                                                                  $335,206,475                   NO Step 6:
Decom Period:
Real Rate of Return   Decom        Total Earnings for Total Earnings:               per year        Period:           Decom:
      $335,206,475                  2.00%              7            $24,920,199 Total of Steps 4 thru 6:  Does Licensee Pass:     Shortfall:
                                                                                  $360,126,674                  NO            ($296,421,326)
Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo                                                                                                                           Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011                                                                                                                                                   Formulas verified by: Clayton Pittiglio
 
SAFSTOR ANALYSIS Name of Unit:                                          Byron, Unit 2 Name of Licensee:                                          EGC Date of Termination of Operations                11               6       2026 End of Operations Balance:                        $335,206,475 Operating Life Real Rate of Return:            2.00%
Decommissioning Real Rate of Return:            2.00%
Expense Per Year                    End of Year Beginning Trust Fund                                    Real Rate Year                                                                            Trust Fund Balance          Cost in 2010 dollars Spent Fuel of Return Balance 2026            $334,176,580            $7,778,000          N/A      2.00%  $333,004,332 2027            $333,004,332          $57,569,000          N/A      2.00%   $281,519,729 2028             $281,519,729           $34,472,000          N/A      2.00%   $252,333,403 2029             $252,333,403           $3,682,000          N/A      2.00%   $253,661,251 2030             $253,661,251           $3,682,000          N/A      2.00%   $255,015,656 2031             $255,015,656           $3,682,000          N/A      2.00%   $256,397,149 2032             $256,397,149           $3,686,000          N/A      2.00%   $257,802,232 2033             $257,802,232           $3,673,000          N/A      2.00%   $259,248,547 2034             $259,248,547           $3,673,000          N/A      2.00%   $260,723,788 2035             $260,723,788           $3,673,000          N/A      2.00%   $262,228,534 2036             $262,228,534           $3,683,000          N/A      2.00%   $263,753,274 2037             $263,753,274           $3,673,000          N/A      2.00%   $265,318,610 2038             $265,318,610           $3,673,000          N/A      2.00%   $266,915,252 2039             $266,915,252           $3,673,000          N/A      2.00%   $268,543,827 2040             $268,543,827           $3,683,000          N/A      2.00%   $270,194,874 2041             $270,194,874           $3,673,000          N/A      2.00%   $271,889,041 2042             $271,889,041           $3,673,000          N/A      2.00%   $273,617,092 2043             $273,617,092           $3,660,000          N/A      2.00%   $275,392,834 2044             $275,392,834           $3,670,000          N/A      2.00%   $277,193,990 2045             $277,193,990           $3,660,000          N/A      2.00%   $279,041,270 2046             $279,041,270           $3,660,000          N/A      2.00%   $280,925,496 2047             $280,925,496           $3,660,000          N/A      2.00%   $282,847,406 2048             $282,847,406           $3,670,000          N/A      2.00%   $284,797,654 2049             $284,797,654           $3,660,000          N/A      2.00%   $286,797,007 2050             $286,797,007           $3,660,000          N/A      2.00%   $288,836,347 2051             $288,836,347           $3,660,000          N/A      2.00%   $290,916,474 2052             $290,916,474           $3,670,000          N/A      2.00%   $293,028,103 2053             $293,028,103           $3,660,000          N/A      2.00%   $295,192,065 2054             $295,192,065           $3,660,000          N/A      2.00%   $297,399,307 2055             $297,399,307           $3,660,000          N/A      2.00%   $299,650,693 2056             $299,650,693           $3,670,000          N/A      2.00%   $301,937,007 2057             $301,937,007           $3,660,000          N/A      2.00%   $304,279,147 2058             $304,279,147           $3,660,000          N/A      2.00%   $306,668,130 2059             $306,668,130           $3,660,000          N/A      2.00%   $309,104,892 2060             $309,104,892           $3,670,000          N/A      2.00%   $311,580,290 2061             $311,580,290           $3,660,000          N/A      2.00%   $314,115,296 2062             $314,115,296           $3,660,000          N/A      2.00%   $316,701,002 Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011
 
2063             $316,701,002 $3,660,000  N/A 2.00% $319,338,422 2064             $319,338,422 $3,670,000  N/A 2.00% $322,018,490 2065             $322,018,490 $3,660,000  N/A 2.00% $324,762,260 2066             $324,762,260 $3,660,000  N/A 2.00% $327,560,905 2067             $327,560,905 $3,660,000  N/A 2.00% $330,415,523 2068             $330,415,523 $3,670,000  N/A 2.00% $333,317,134 2069             $333,317,134 $3,660,000  N/A 2.00% $336,286,877 2070             $336,286,877 $3,660,000  N/A 2.00% $339,316,014 2071             $339,316,014 $3,660,000  N/A 2.00% $342,405,734 2072             $342,405,734 $3,670,000  N/A 2.00% $345,547,149 2073             $345,547,149 $3,660,000  N/A 2.00% $348,761,492 2074             $348,761,492 $3,660,000  N/A 2.00% $352,040,122 2075             $352,040,122 $3,660,000  N/A 2.00% $355,384,324 2076             $355,384,324 $3,670,000  N/A 2.00% $358,785,311 2077             $358,785,311 $3,660,000  N/A 2.00% $362,264,417 2078             $362,264,417 $13,930,000 N/A 2.00% $355,440,405 2079             $355,440,405 $36,308,000 N/A 2.00% $325,878,134 2080             $325,878,134 $95,253,000 N/A 2.00% $236,190,166 2081             $236,190,166 $79,191,000 N/A 2.00% $160,931,060 2082             $160,931,060 $61,556,000 N/A 2.00% $101,978,121 2083             $101,978,121 $61,556,000 N/A 2.00% $41,846,123 2084             $41,846,123 $29,171,000 N/A 2.00% $13,220,336 2085             $13,220,336   $38,000  N/A 2.00% $13,446,362 2086             $13,446,362   $38,000  N/A 2.00% $13,676,910 2087             $13,676,910   $12,000  N/A 2.00% $13,938,328 Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011}}

Latest revision as of 16:49, 12 November 2019

2010 DFS Report Analysis for Byron Station, Unit 2
ML112351245
Person / Time
Site: Byron Constellation icon.png
Issue date: 11/14/2011
From: Szabo A
Division of Inspection and Regional Support
To:
Szabo, A L, NRR/DPR, 415-1985
References
Download: ML112351245 (5)


Text

Datasheet 1 Plant name: Byron Station, Unit 2 Docket Number: 50-455 1

1 The minimum financial assurance (MFA) estimate pursuant to 10 CFR 50.75(b) & (c): $477,516,000 Did the licensee identify the amount of estimated radiological funds? (Y/N) Y 2 The total amount of dollars accumulated at the end of the appropriate year: (see below)

Licensee:  % Owned: Category: Amount in Trust Fund:

Exelon Generation 100.00% 2 $244,915,000 Company, LLC Total Trust Fund Balance $244,915,000 3 Schedule of the annual amounts remaining to be collected: (provided/none) none 4 Assumptions used in determining rates of escalation in decommissioning costs, rates of earnings on decommissioning funds, and rates of other factors used in funding projections: (see below)

Post-RAI Rate of Rate(s) of PUC RAI PUC Allowed Rates Escalation Real Rate Allowed through Decom Return on Other Verified Needed Verified through Determined Rate of Return (Y/N)

Earnings Factors (Y/N) (Y/N) (Y/N) Decom (Y/N) (Y/N) 2.00%

5 Any contracts upon which the licensee is relying? (Y/N) N 6 Any modifications to a licensee's method of providing decommissioning funding assurance? (Y/N) Y2 7 Any material changes to trust agreements? (Y/N) N If a change has occurred, the reviewer will document on this sheet that a change has occurred and identify the reviewer who will evaluate the change: (see below) 1 Licensee calculated MFA higher than NRC calculations. Justification, including factors used, were provided to NRC for review. No further review required.

2 Removed Parent Company Guarantee. Financial assurance is provided by a prepayment method, coupled with an external trust fund. No further review required.

Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011 Formulas verified by: Clayton Pittiglio

Datasheet 2 Plant name: Byron Station, Unit 2 Docket Number: 50-455 Month: Day Year:

Date of Operation: 12 31 2010 Termination of Operations: 11 6 2026 Latest Latest BWR/PWR MWth 1986$ ECI Base Lx Lx Px Base Px Fx Base Fx Ex Bx Month Px Month Fx PWR 3586 $105,000,000 111.3 2.08 0.65 2.32 1.676 191.4 114.2 3.049 250.0 82.0 0.13 2.253 0.22 12.28 NRC Minimum: $472,417,086 Site Specific: $656,548,000 Amount of NRC Minimum/Site Licensee:  % Owned: Category Specific: Amount in Trust Fund:

Exelon Generation 100.00% 2 $656,548,000 $244,915,000 Company, LLC Total Fund Balance: $244,915,000 Step 1:

Earnings Credit:

Real Rate of Return Years Left Trust Fund Balance: per year in License Total Earnings: Does Licensee Pass:

$244,915,000 2% 15.85 $335,206,475 NO Step 2:

Accumulation:

Value of Annuity per year (amount/See Annuity Real Rate of Return Number of Annual Sheet) per year Payments: Total Annuity:

2% $0 Real Rate of Return Years remaining after Total Annuity per year annuity Total Step 2:

$0 2% 15.85 $0 Total Step 1 + Step 2 Does Licensee Pass:

$335,206,475 NO Step 3:

Decom Period:

Real Rate of Return Decom Total Earnings for Total Earnings: per year Period: Decom:

$335,206,475 2% 7 $24,920,199 Total of Steps 1 thru 3: Does Licensee Pass: Shortfall:

$360,126,674 NO ($296,421,326)

Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011 Formulas verified by: Clayton Pittiglio

Datasheet 2 Plant name: Byron Station, Unit 2 Docket Number: 50-455 Month: Day Year:

Date of Operation: 12 31 2010 Termination of Operations: 11 6 2026 If licensee is granted greater than 2% RRR Step 4:

Earnings Credit:

Real Rate of Return Years Left Trust Fund Balance: per year in License Total Earnings: Does Licensee Pass:

$244,915,000 2.00% 15.85 $335,206,475 NO Step 5:

Accumulation:

Real Rate of Return Number of Annual Value of Annuity per year per year Payments: Total Annuity:

$0 2.00% 0 $0 Real Rate of Return Years remaining after Total Annuity per year annuity Total Step 5

$0 2.00% 15.85 $0 Total Step 4 + Step 5 Does Licensee Pass:

$335,206,475 NO Step 6:

Decom Period:

Real Rate of Return Decom Total Earnings for Total Earnings: per year Period: Decom:

$335,206,475 2.00% 7 $24,920,199 Total of Steps 4 thru 6: Does Licensee Pass: Shortfall:

$360,126,674 NO ($296,421,326)

Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Spreadsheet created by: Aaron Szabo, Shawn Harwell Date: 8/15/2011 Formulas verified by: Clayton Pittiglio

SAFSTOR ANALYSIS Name of Unit: Byron, Unit 2 Name of Licensee: EGC Date of Termination of Operations 11 6 2026 End of Operations Balance: $335,206,475 Operating Life Real Rate of Return: 2.00%

Decommissioning Real Rate of Return: 2.00%

Expense Per Year End of Year Beginning Trust Fund Real Rate Year Trust Fund Balance Cost in 2010 dollars Spent Fuel of Return Balance 2026 $334,176,580 $7,778,000 N/A 2.00% $333,004,332 2027 $333,004,332 $57,569,000 N/A 2.00% $281,519,729 2028 $281,519,729 $34,472,000 N/A 2.00% $252,333,403 2029 $252,333,403 $3,682,000 N/A 2.00% $253,661,251 2030 $253,661,251 $3,682,000 N/A 2.00% $255,015,656 2031 $255,015,656 $3,682,000 N/A 2.00% $256,397,149 2032 $256,397,149 $3,686,000 N/A 2.00% $257,802,232 2033 $257,802,232 $3,673,000 N/A 2.00% $259,248,547 2034 $259,248,547 $3,673,000 N/A 2.00% $260,723,788 2035 $260,723,788 $3,673,000 N/A 2.00% $262,228,534 2036 $262,228,534 $3,683,000 N/A 2.00% $263,753,274 2037 $263,753,274 $3,673,000 N/A 2.00% $265,318,610 2038 $265,318,610 $3,673,000 N/A 2.00% $266,915,252 2039 $266,915,252 $3,673,000 N/A 2.00% $268,543,827 2040 $268,543,827 $3,683,000 N/A 2.00% $270,194,874 2041 $270,194,874 $3,673,000 N/A 2.00% $271,889,041 2042 $271,889,041 $3,673,000 N/A 2.00% $273,617,092 2043 $273,617,092 $3,660,000 N/A 2.00% $275,392,834 2044 $275,392,834 $3,670,000 N/A 2.00% $277,193,990 2045 $277,193,990 $3,660,000 N/A 2.00% $279,041,270 2046 $279,041,270 $3,660,000 N/A 2.00% $280,925,496 2047 $280,925,496 $3,660,000 N/A 2.00% $282,847,406 2048 $282,847,406 $3,670,000 N/A 2.00% $284,797,654 2049 $284,797,654 $3,660,000 N/A 2.00% $286,797,007 2050 $286,797,007 $3,660,000 N/A 2.00% $288,836,347 2051 $288,836,347 $3,660,000 N/A 2.00% $290,916,474 2052 $290,916,474 $3,670,000 N/A 2.00% $293,028,103 2053 $293,028,103 $3,660,000 N/A 2.00% $295,192,065 2054 $295,192,065 $3,660,000 N/A 2.00% $297,399,307 2055 $297,399,307 $3,660,000 N/A 2.00% $299,650,693 2056 $299,650,693 $3,670,000 N/A 2.00% $301,937,007 2057 $301,937,007 $3,660,000 N/A 2.00% $304,279,147 2058 $304,279,147 $3,660,000 N/A 2.00% $306,668,130 2059 $306,668,130 $3,660,000 N/A 2.00% $309,104,892 2060 $309,104,892 $3,670,000 N/A 2.00% $311,580,290 2061 $311,580,290 $3,660,000 N/A 2.00% $314,115,296 2062 $314,115,296 $3,660,000 N/A 2.00% $316,701,002 Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011

2063 $316,701,002 $3,660,000 N/A 2.00% $319,338,422 2064 $319,338,422 $3,670,000 N/A 2.00% $322,018,490 2065 $322,018,490 $3,660,000 N/A 2.00% $324,762,260 2066 $324,762,260 $3,660,000 N/A 2.00% $327,560,905 2067 $327,560,905 $3,660,000 N/A 2.00% $330,415,523 2068 $330,415,523 $3,670,000 N/A 2.00% $333,317,134 2069 $333,317,134 $3,660,000 N/A 2.00% $336,286,877 2070 $336,286,877 $3,660,000 N/A 2.00% $339,316,014 2071 $339,316,014 $3,660,000 N/A 2.00% $342,405,734 2072 $342,405,734 $3,670,000 N/A 2.00% $345,547,149 2073 $345,547,149 $3,660,000 N/A 2.00% $348,761,492 2074 $348,761,492 $3,660,000 N/A 2.00% $352,040,122 2075 $352,040,122 $3,660,000 N/A 2.00% $355,384,324 2076 $355,384,324 $3,670,000 N/A 2.00% $358,785,311 2077 $358,785,311 $3,660,000 N/A 2.00% $362,264,417 2078 $362,264,417 $13,930,000 N/A 2.00% $355,440,405 2079 $355,440,405 $36,308,000 N/A 2.00% $325,878,134 2080 $325,878,134 $95,253,000 N/A 2.00% $236,190,166 2081 $236,190,166 $79,191,000 N/A 2.00% $160,931,060 2082 $160,931,060 $61,556,000 N/A 2.00% $101,978,121 2083 $101,978,121 $61,556,000 N/A 2.00% $41,846,123 2084 $41,846,123 $29,171,000 N/A 2.00% $13,220,336 2085 $13,220,336 $38,000 N/A 2.00% $13,446,362 2086 $13,446,362 $38,000 N/A 2.00% $13,676,910 2087 $13,676,910 $12,000 N/A 2.00% $13,938,328 Signature: Shawn Harwell Date: 8/3/2011 Signature: Aaron L. Szabo Date: 8/15/2011