MinesotardOutaeCYear 80 Outage Costs EOY2008 MillIeiiç 49j78 2BO\47

009 fl$$fr 58158$3tj5%flft2010 crtsu 33O36S56iSt4A1201 ri 4sI4i 5%3614S T1bSt1I

cii1Ii 1g2014 SdI 42j25 671

2015

2016 $a fl914539 735.841 ItS4 45I

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sts

Year BOY Current EOY2008 .1IflL M4 494 WSIS3S2009 40MO Q833f2010 aJ$w2sta 5O293769 IISItS4bI201 jaWt2 51 flJ\2012 US4tfl2SO6P 40t awipi2013 itS43b1IA 248O7 Sfl1fl8I20 $rs404

2015 11352016

2017 IIIIRL4d2014 I.tJiM1 58184O2019 ras 59

2020 istts 5a173CfltiiNetPlant

Year BOY Current EOY2008 asnsaSSflttSSt tA2009

2010 t$P NPSVWIbWII201 1fl5iSQIWW flIUt1Il$W4flW2012 1itIIIta M1LRflV12013

2014 wzaoeniaanuaawaszszjaj015 761 397

2016 1iSSt1ftI 698438802017 IIMfjbt %iSI1flqpa 1fl13I 673090292018 669106632018 msi 664778952020 64309680

AmortiztIon of Deferred axes

Yes BOY Current EOY

I12017 5ZIfl$iaSS11t1

31102181

28534647

27499036

27336284

27159478

26273655

North DakotaredOueCosYear BO Outag Costs

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11 asbfl$ 3241

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201 fltMsj 354 iIjfli$fltj2014 jCQat 08 678\jI3682015 Sam 57542016 IP%Sh 291t305 iPt9t42017 niim 5582 1744 fltifl21 302019 ti 552720 4M.e6iutaeCsYear BOY Current EOY2008 4t%1- pg IItIsaiI2009 tS G$f IUPflIVflI

tü7MS 8L716201 umuiai 38224097 IIa1ktkE2012 I%t 36O70Sflh1IIS4$S4i2013 IkStt2014 iiaiati 5652 032 1aspwh2015 5115246434çS4J2016 Ssts 445912 I752017 410 895 2k4ptMgI2018 3gjj 42641242019 jq7ark 4357 041 42$J2020 Jt$ti\\/43o734s 4WMMU

NetPlant

Year BOY Current EOY

IN

Amort atto of Deferred Taxes

ar BOYS Currentl EOY6

2014

2015 1iapSrk fl2016

2017

2020 k4v ///t\

5570 043

5119698

49357304907 893

4879503

4721161

2275636

2091647

20164872005115

19935161928826

Sou DakotaDeferred Outage Costs

ear BOY Outage Costs EOY2008 7flflSS9 $/ 526 59 1k afl4% 28/fl

2009 87 IWIII2010 TU\c Z3 1886/W$iuk2011 Asival 42t 4t5j s4p42012 se201 284 It IPMIUN

UIIItI201 %t4 4/ 842 oSI1tJ1S 2t

iVM2020 IItIItti 922 utt MtYear BOY Current EOY2008 i1SbP 9734414 fS1IIS__alF // aiiear

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010 mtak 6q707 b/SVSt2011 imssii 37512012 trflmes2013 iiiim iji 4493s tt1ISt4a

pi 5042 748

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2019

20 421001 jjfltfl3jNet Uiamortized Baance

Year BOY Current EOY2008

i10

Amoru atn of Deferred axes

Year BOY Current BOY

I$IIJt s1I8%iI9018 1ft 20flt%4489é na

2019

2020 SEa

5468140

50078324824351

47945054760341

4604323

2234003

2045945

1970984

1958790

1944833

1881091

10/16/2015 S\OeneraI0fttces-G0-Ol\RATE\Revenue Anaiysis\Annual\16BudYrl\RB\Other RBNudear Outage COA\16b Nuclear Outage COAxlsxSummaryby Jurisdiction

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rnzz9t69ttOQ6ç9ZL99cILl2u4L9OfL6Os99c86z6LOctLIZ9tt68OcL6166S61tttIZ9IUO6tt9L9Z6OIiIZ99fZ89WJUJ1086SZ6Lt0900LZ09PU6Z90t0000068ff8IOZWItOS8fZtt00PU6Z

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999L5999z9009t0ttctt00L6puuU890t90609610680066LZ0l90czLL690PUOzcS6OLUi906LStfc9czoc9opuwj9jzciootzczzisI9o6zoooooZ096tosgot09SLM9S9co9tZOsro9Z616L698906019ztt9S9czcotoootL9zcwst8LZI0t6199Z0090t6c699oct0009Zt

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69Z6UcZ001Oftf60IiocZ60tILO06f09ocL09Z0YoiozzzoOOL60L60cZLZ9ZS0108ZtZLLco6o666t9JItOS9f900ZOil08019I009Z9966Au91006IZ81LLi6t6l619t0698IZt06LItOZLtZ969c8cttfL89688OtQç

609ZMl06tc96P--169I89Z80Zt9PU6zcclot91i8cZ06S6i906SZOZcOLLZLIZL0Z9f96Z96L0t9NSZL6Lt80tI618081060SZS

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_____________________________________________________________________________________________uufoUyi79L0169TPZZ698L9

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0L6L81Z6Z0ZLOlOL828800SL98IZ60Z91L8690t990686088896tJj6

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908890001109Z16OP801861.101709689Z199180PWaO6169969P9050870709909L927498062991L0162695L59P892L991L961009806

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089LO018952805S6609z8869128286626861%60L492860110865686565660Z1994128

910106127698816221876PZ6L6P617196Z8927026667I686696z09c8S1IPL89P012556216889L48i028

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2018 2013 2626

.2110 3773715 897775 2421027

863712 61879 917208 9753

83 7712 144127 8844 507 54869

79883 80 84748

3932951 380858 9797 2528 402

5463205 12 2313 5276277 1310395

36194 979 24947813 37481424 21901016

3682607 2550835 3768190 2874405

17020309 6527025 17063921 6672644

87345143 47278448 86393336 43939326

2611 2618 2613 2026

7647400 8079046 7455292 6564172

712552 727170 758152 772464

7019713 6651560 6906453 7/168438

75942 76810 78897 79834

3028061 3090206 3182906 3214110

3088043 3410450 3506450 3496864

486

31303119 29856264 30974531 30681512

3131293 3025202 3149409 3190796

12908298 11704072 12029556 12187978

68914907 66620780 68041646 67256168

2618 2613 2026

47540 3296193 7841715 2114673

4419 543187 801145 576268

4493194 7725332 4792624

6743 69775 71868 74024

3435280 2079587 3476181 2208460

4770896 1093617 4607657 1144339

31608279 21786376 32733449 19125676

3215940 2227588 3290678 2510154

14866576 5701102 14904669 5828294

76284279 41290619 75452695 38374514

2611 2018 2032 2020

6679706 7056732 6511907 5733548

622386 635155 662216 674717

6131446 5809878 6032517 6174005

66332 67091 68913 69732

2644893 2699174 2780144 2807400

2696720 2978271 3062106 3053734

425

27336325 26072819 27049376 26793489

2734489 2641842 2750310 2786452

11274895 10223050 10507348 10645723

60187617 58184012 59424838 58738801

S5Genera-Offices-GO-O1\RATE\Revenue Anayss\Annua816BudYr1\RB\Other RB\Niudear Outage COA\16b Nucear Outage COAxsx by FERC JurAuoc

Demand

Demand

Demand

Demand

Demand

Demand

Energy

Demand

520

523

524

525

528

529

530 Energy

531 Energy

532 Demand

Total

EERC517 Demand

519 Demand

520 Demand

523 Demand

524 Demand

525 Demand

528 Energy

529 Demand

530 Energy

531 Energy

532 Demand

Tout

215111 21111 21512 21111 21114 211115 21517 21114 211215

NorthDakotaJiarisdiction SouthDakot8Jurisdhtiuu

Fatoi 20154 21502 211111 2011 2012 2013 25514 21115 215115 2011 2018 21112 20215 1E1111C Eagyttt 20154 20152 211155 21111 21512 2013 21514

Demand 368803 289508 102442 330971 382398 409503 312270 519699 281287 728587 234355 557536 150351 517 Demand 382670 300393 106294 343416 396776 424900 324012Demand 31023 49132 21630 62857 98182 105487 52100 53835 36291 53638 38620 56960 40972 519 Demand 32190 50979 22443 65220 101874 109453 54059Demand 355966 449118 199188 534998 626313 965832 351041 636443 303161 520273 319461 549262 340750 520 Demand 369350 466005 206677 555114 649862 1002147 364240

523 Demand 11572 17586 3401 8412 7853 7287 17455 4575 4676 4816 4961 5110 5263 523 Demand 12008 15247 3529 8728 8149 7561 18111524 Demand 139662 255785 92058 285066 356316 637501 141106 236712 137886 244244 147856 247152 157019 524 Demand 144913 265402 95519 295784 369713 661471 146412525 Demand 525 Demand528 Energy 662370 381239 537429 508668 1146196 605806 61868 269289 87436 358370 82 148 346108 85958 528 Energy 617214 355248 500791 473990 1068055 564506 57650529 Demand 4927 4025 12924 16350 13519 1879 78 529 Demand 5112 4177 13410 16965 14027 1950530 EnerD 902870 915453 963450 1040108 1047089 1846017 872717 2510246 1520100 2374282 1636502 2458800 1436641 530 Energy 841318 853043 897768 969200 975705 1720167 813220531 Energy 443764 793302 5617 355916 690508 820599 759461 245262 152731 241568 167327 247182 188552 531 Energy 413511 7322O 70462 331652 643434 764656 707685532 Demand 682994 1091628 437937 1184222 1214854 1942458 515781 1278232 395737 1056995 405341 1059704 414385 532 Demand 708675 1132673 454403 1228748 1260532 2015494 535174

Total 3603952 4246776 2433152 4324141 5586059 7354010 3085678 5754371 2919305 3582774 3036571 5527814 2819890 Total 3526959 4185.387 2357886 4285261 c491064 7284381 3022513

1EE111 Eacut 2001 21102 20151 2011 2012 2011 2014 2013 2016 2017 201.8 2012 20215 111111C lactor 200.8 2002 2012 21511 2012 21511 2014

517 Demand 79247 277016 262962 240891 252170 312163 404292 425113 412526 474919 501725 462989 407648 517 Demand 82227 28432 272850 249948 261652 323900 419493519 Demand 7690 28654 40766 46924 61226 74125 81234 70117 50472 44251 45159 47083 47972 519 Demand 7979 29731 42299 48689 63528 76912 84289520 Demand 110267 302236 364040 406217 424463 537091 721373 613488 488923 435938 413075 428905 438964 520 Demand 114413 313599 377728 421490 440422 557285 748496523 Demand 2872 9631 12364 10504 7813 4378 6778 12447 9967 4716 4770 4900 4958 523 Demand 2980 9993 12829 10899 8106 4543 7033524 Demand 43854 131208 186356 212677 235690 301988 441882 339231 194965 188049 191908 197665 199603 524 Demand 45503 136141 193363 220674 244552 313343 458496525 Demand 525 Demand528 Energy 190795 472176 470116 555328 609466 782320 568827 306591 162443 202566 223715 230013 229384 528 Energy 177788 439986 438066 517469 567917 728986 530048529 Demand 547 3804 3571 6318 11394 9248 11228 7018 582 30 529 Demand 568 3947 3705 6555 11822 9595 11650530 Energy 299663 692223 925527 1098198 861696 950894 1302855 1439352 1797432 2053391 158481 2031836 2012615 530 Energy 279234 645031 862430 1023330 802951 886067 1214035531 Energy 65315 398582 584438 371273 351096 490462 706319 757800 453241 205403 198444 206592 209307 531 Energy 60863 371410 544595 345962 327160 457025 658167532 Demand 199364 657558 831574 873767 882055 1095003 1407242 1144090 888571 801631 726846 747059 756898 532 Demand 206860 682281 862841 906620 915219 1136175 1460154

Total 999615 2973088 3681716 3822097 3697068 4557672 5652032 5115246 4459121 4410895 4264124 4357041 4307348 Total 978414 2919553 3610707 3751636 3643329 4493832 5591861

S\General-Offices-GO-O1\RATE\Revenue Analysis\Annual\l6BudYrl\RB\Other RB\Nuclear Outage COAS16b Nuclear Outage COA.xlsx by FERC Jur Alloc

ioIesa1eJursdiction

2012 2012 2012 2012 2022 actot 2222 2002 2010 2011 2012 2211 2011 2912 2012

19239 291863 755982 243167 578499 156004 517 Demand

5859 37656 55655 40072 59102 42512 519 Demand

314560 539835 331472 569913 353562 520 Demand

4747 4852 4998 5147 5302 5461 523 Demand

245613 143070 253428 153415 256445 162923 524 Demand

525 Demand

250930 81475 333938 76548 322512 80098 528 Energy

81 529 Demand

2339113 1416469 2212418 1524935 2291174 1338700 530 Energy

228542 142318 225099 155920 230331 175698 531 Energy

1326293 410617 1096738 420582 1099548 429965 532 Demand

5650789 2842880 5478090 2951258 5412827 2744922 Total

2912 2012 2911 2014 2012 2020 ERC 2022 2002 2012 2011 2912 2212 2212 2912 2014 2011

441097 428037 492776 520589 480397 422976 517 Demand

72753 52370 45915 46857 48853 49775 519 Demand

636554 507306 452329 428607 445031 455469 520 Demand12915 10341 4893 4949 5084 5144 523 Demand

351986 202296 195119 199124 205097 207108 524 Demand

525 Demand

285690 151368 188757 208464 214332 213746 528 Energy

7281 604 31 529 Demand

1341226 1674894 1913403 1824964 1893318 1875407 530 Energy

706138 422342 191400 184915 192508 195037 531 Energy

1187107 921981 831772 754175 775148 785357 532 Demand

5042748 4371538 4316395 4172644 4259768 4210019 Total

S\General-Offioes-GO-01\RATE\Revenue AnaysisAnnua81 6BudYrl\RB\Other RB\Nudear Outage COA\1 Gb Nudear Outage COA.alsx by FERC Jur Abc

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4 S\General-Offices-GO-01\RATE\Revenue AnalysisAnnuaRl6BudYrl\RB\Plant\CIAc Electric 2006 Rate Case.xlsx Business

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Total CompanyAnnual

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9/18/2015 sm

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119

9/18/2015 sm

c x1974 S\General-Offices-GO-01\RATE\Revenue Analysis\AnnuaI16BudYr1\R8\Plant\CIAC Electric 2006 Rate Case.xlsx Business CIAC -2017

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621

9/18/2015 sm

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97

4 S\General-Offices-GO-01\RATE\Revenue Analysis\Annual\l6BudYrl\RB\Plant\cIAc Electric 2006 Rate Case.xlsx Business

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126

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c

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4 S\General-Offices-GO-01 \RATE\Revenue AnalysisAnnual\1 6BudYrl \RBPlant\clAC Electric 2006 Rate case.xlsxNew Business

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45500.00

461

Annual Deferred

Electric Adjustment

COSS Adj 000s

Total CompanyAnnual

6924.59

MN Jurisdiction

Annual

6924.59

Tax Depreciation

Electric Adjustment

Total CompanyAnnual

62468.00

MN Jurisdiction

Annual

62468.00

COSS Adj 000s

AFUDC

621

621

Total CompanyAnnual

MN Jurisdiction

Annual

Electric Adjustment

COSS

Adj 000s

MN Jurisdiction

9/18/2015 smcxl974 S\General-Offices-GO-01\RATE\Revenue AnalysisAnnual\l6BudYrl\RB\Plant\cIAc Electric 2006 Rate case.xlsx Business CIAC -2018

P4-4

ITC

Gra

nt

Accounting

Conversion

of

ITC Grant Accounting Associated with

the

St Anthony Hydro Facility

2016b Deferred Revenue Amortization Converted

to ITC Deferred

Tax Amortization

Demand Portion

MN

ND

SD WHLSL Total

87.3461% 6.2102% 6.4437% 0.0000% 100.0000%

Deferred

ITC

2015

2016

2017

2018

2019

2020

61669 4385 4549

706037060370603706037060370603

70603

2016 Deferred Revenue Amortization

Composite

Tax Rate

ITC Amortization Deferred

Tax

17300640.8097%

70603

This item

was included

in

Interchange Billings

SGeneraI-Offices-GO-O1 \RATE\Revenue AnalysisAnnual\1 6BudYrl \RB\Taxes\201

6b

ITC Grant Actg Conversion.xlsx

P4

DOE

Paym

ent

DO

E Refund

MN Retail

Decommissioning Accrual

Excess Funding

Total Excess Funding Revised

Received 2013

for 2014

DC

M

31810998

14189132

17621866

Received 2014

for 2015

DC

M

22301961

14189132

8112829

25734695 2015 Step Amount

Zero balance anticipated

for 2016 Test Year

P4-5

DO

E Refund Distribution.xlsx