ML19088A049

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Decommissioning Funding Status Reports
ML19088A049
Person / Time
Site: Monticello, Prairie Island, San Onofre  Southern California Edison icon.png
Issue date: 03/29/2019
From: Murphy M
Northern States Power Company, Minnesota, Xcel Energy
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
L-XE-19-003
Download: ML19088A049 (29)
v • d • e


Text

fl Xcel Energy*

II E S P O N S I 8 LE 8 Y N AT U R E* 414 Nicollet Mall Minneapolis, MN 55401-1993 March 29, 2019 L-XE-19-003 10 CFR 50. 75(f)(1)

ATIN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant, Units 1 and 2 Docket Nos. 50-282 and 50-306 Renewed Facility Operating License Nos. DPR-42 and DPR-60 Monticello Nuclear Generating Plant Docket No. 50-263 Renewed Facility Operating License No. DPR-22 Decommissioning Funding Status Reports The enclosed decommissioning funding status reports are being submitted in accordance with 10 CFR 50.75, Reporting and Recordkeeping for Decommissioning Planning," Paragraph (f)(1) for the above listed plants. As holder of the plant operating licenses, Northern States Power Company, a Minnesota corporation (NSPM) d/b/a Xcel Energy is submitting these reports. The financial information presented herein, is current as of December 31, 2018.

Summary of Commitments This letter makes no new commitments and no revisions to existing commitments.

M,!:!µtf Director, Nuclear Licensing and Regulatory Services Northern States Power Company - Minnesota Enclosures (8) cc: Administrator, Region 111, USNRC Project Manager, Monticello and Prairie Island, USNRC Resident Inspector, Monticello, USNRC Resident Inspector, Prairie Island, USNRC

ENCLOSURE 1 Prairie Island Nuclear Generating Plant, Unit 1 Docket No. 50-282 License No. DPR-42 Decommissioning Funding Status Report As provided in 10 CFR 50.75(f)(1), each power reactor licensee is required to report to the NRC on a calendar year basis beginning March 31, 1999, and every two years thereafter on the status of its decommissioning funding for each reactor or share of reactor it owns.

1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75(b) and (c), in 2018 dollars. $441,874,296
2. The amount accumulated at the end of the calendar year External preceding the date of the report. Qualified $492,616,045
3. A schedule of the annual amounts remaining to be collected Annual Years to for radiological costs through rates from customers. Annuity Collect

$486,424 14.67 yrs

4. Assumptions used regarding escalation in decommissioning costs, rate of earnings on decommissioning funds and rates of other factors used in funding projections.

Plant Owner (% Ownership) Rate of Earnings Escalation Real Rate of (Nominal Rate Of Factor Return Return) (Inflation) (Projected)

Xcel Energy (100%) - PINGP Unit 1 4.99% 4.05% 0.94%

- During Operations (Radiological)

Xcel Energy (100%) - PINGP Unit 1 4.15% 4.05% 0.10%

- Post-Shutdown (Radiological)

Basis for Allowance:

Xcel Energy files a triennial decommissioning study with the Minnesota Public Utilities Commission (MPUC) for approval. A portion of the study is dedicated to an analysis of inflation factors surrounding the various components necessary to perform the decommissioning function. Note: These rates apply to external funds only for radiological decommissioning. The rate of earnings and escalation factors were approved by the MPUC in the most recent triennial decommissioning study completed by the company, MPUC Docket No. E002/M-17-0828, effective January 7, 2019. The projected real rate of return of 0.94% during operations and 0.10% post-shutdown would accumulate sufficient decommissioning funds by the current 2033 end of license date.

5. Any contracts upon which the licensee is relying pursuant to 10 CFR 50.75(e) (1) (v). None
6. Any modifications to a licensee's method of providing financial assurance occurring since the last submitted report. None
7. Any material changes to trust agreements. None Page 1 of 1

ENCLOSURE 2 Prairie Island Nuclear Generating Plant, Unit 2 Docket 50-306 License DPR-60 Decommissioning Funding Status Report As provided in 10 CFR 50.75(f)(1), each power reactor licensee is required to report to the NRC on a calendar year basis beginning March 31, 1999, and every two years thereafter on the status of its decommissioning funding for each reactor or share of reactor it owns.

1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75(b) and (c), in 2018 dollars. $441,874,296
2. The amount accumulated at the end of the calendar year External preceding the date of the report. Qualified $461,002,122
3. A schedule of the annual amounts remaining to be collected for Annual Years to radiological costs through rates on customers. Annuity Collect

$1,535,100 15.83 yrs

4. Assumptions used regarding escalation in decommissioning costs, rate of earnings on decommissioning funds and rates of other factors used in funding projections.

Plant Owner (% Ownership) Rate of Earnings Escalation Real Rate of (Nominal Rate Of Factor Return Return) (Inflation) (Projected)

Xcel Energy (100%)- PINGP Unit 2 5.04% 4.05% 0.99%

- During Operations (Radiological)

Xcel Energy (100%)- PINGP Unit 2 4.09% 4.05% 0.04%

- Post-Shutdown (Radiological)

Basis for Allowance:

Xcel Energy files a triennial decommissioning study with the Minnesota Public Utilities Commission (MPUC) for approval. A portion of the study is dedicated to an analysis of inflation factors surrounding the various components necessary to perform the decommissioning function. Note: These rates apply to external funds only for radiological decommissioning. The rate of earnings and escalation factors were approved by the MPUC in the most recent triennial decommissioning study completed by the company, MPUC Docket No. E002/M-17-0828, effective January 7, 2019. The projected real rate of return of 0.99% during operations and 0.05% post-shutdown would accumulate sufficient decommissioning funds by the current 2034 end of license date.

5. Any contracts upon which the licensee is relying pursuant to 10 CFR 50.75(e) (1) (v). None
6. Any modifications to a licensee's method of providing financial assurance occurring since the last submitted report. None
7. Any material changes to trust agreements. None Page 1 of 1

ENCLOSURE 3 Monticello Nuclear Generating Plant Docket No. 50-263 License No. DPR-22 Decommissioning Funding Status Report As provided in 10 CFR 50.75(f)(1), each power reactor licensee is required to report to the NRC on a calendar year basis beginning March 31, 1999, and every two years thereafter on the status of its decommissioning funding for each reactor or share of reactor it owns.

1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75(b) and (c), in 2018 dollars. $616,452,140
2. The amount accumulated for Radiological Decommissioning at External the end of the calendar year preceding the date of the report. Qualified $496,452,338
3. A schedule of the annual amounts remaining to be collected Annual Years to for radiological costs through rates from customers. Annuity Collect

$18,350,224 11.75

4. Assumptions used regarding escalation in decommissioning costs, rate of earnings on decommissioning funds and rates of other factors used in funding projections.

Plant Owner (% Ownership) Rate of Earnings Escalation Real Rate of (Nominal Rate Of Factor Return Return) (Inflation) (Projected)

Xcel Energy (100%)- Monticello - 5.01% 4.05% 0.96%

During Operations (Radiological)

Xcel Energy (100%)- Monticello - 4.43% 4.05% 0.38%

Post-Shutdown (Radiological)

Basis for Allowance:

Xcel Energy files a triennial decommissioning study with the Minnesota Public Utilities Commission (MPUC) for approval. A portion of the study is dedicated to an analysis of inflation factors surrounding the various components necessary to perform the decommissioning function. Note: These rates apply to external funds only for radiological decommissioning. The rate of earnings and escalation factors were approved by the MPUC in the most recent triennial decommissioning study completed by the company, MPUC Docket No. E002/M-17-0828, effective January 7, 2019. The projected real rate of return of 0.96% during operations and 0.38% post-shutdown would accumulate sufficient decommissioning funds by the current 2030 end of license date.

5. Any contracts upon which the licensee is relying pursuant to 10 CFR 50.75(e) (1) (v). None
6. Any modifications to a licensee's method of providing financial assurance occurring since the last submitted report. None
7. Any material changes to trust agreements. None Page 1 of 1

ENCLOSURE 4 Prairie Island Nuclear Generating Plant (PINGP) Units 1 and 2 Dockets 50-282 and 50-306 Licenses Nos. DPR-42 and DPR-60 Monticello Nuclear Generating Plant (MNGP)

Docket 50-263 License No. DPR-22 Xcel Energy Breakdown of Annual Contributions and Trust Fund Balance The following table is the radiological decommissioning, spent fuel management, and site restoration segmentation of the trust fund balances for PINGP Units 1 and 2 and MNGP.

Please note that since our last biennial funding status report, Xcel Energy has rebalanced the amount of funds allocated between the three cost components of decommissioning. This was done to properly balance funds against our new decommissioning cost study and to ensure proper funding for all three components. To see the split of the total fund balance in the cost components, please see Enclosure 8.

Trust Fund Beginning Balances*

Prairie Island Unit 1 2018 2019 Radiological Decommissioning 477,450,711 492,616,045 Spent Fuel Management 74,391,642 38,812,676 Site Restoration 12,354,687 6,445,865 Total 564,197,039 537,874,585 Prairie Island Unit 2 2018 2019 Radiological Decommissioning 445,228,727 461,002,122 Spent Fuel Management 155,990,526 119,237,754 Site Restoration 33,119,314 25,316,105 Total 634,338,566 605,555,981 Monticello 2018 2019 Radiological Decommissioning 499,256,716 496,452,338 Spent Fuel Management 398,808,706 371,357,890 Site Restoration 46,681,005 43,467,856 Total 944,746,427 911,278,084

  • Totals may not foot due to rounding.

The following annual contributions table shows the approximate accrual segmentation for radiological decommissioning, spent fuel management, and site restoration for MNGP and PINGP Units 1 and 2. See Enclosure 5 for the calculation of annual contributions for radiological decommissioning. See Enclosure 6 for the calculation of annual contributions for spent fuel management. See Enclosure 7 for the calculation of annual contributions for site restoration.

Annual Contributions*

Prairie Island Unit 1 2018 2019 Radiological Decommissioning 486,424 486,424 Spent Fuel Management 0 0 Site Restoration 0 0 Total 486,424 486,424 Prairie Island Unit 2 2018 2019 Radiological Decommissioning 1,535,100 1,535,100 Spent Fuel Management 0 0 Site Restoration 0 0 Total 1,535,100 1,535,100 Monticello 2018 2019 Radiological Decommissioning 14,685,299 18,350,224 Spent Fuel Management 3,280,893 0 Site Restoration 384,032 0 Total 18,350,224 18,350,224

  • Totals may not foot due to rounding.

ENCLOSURE 5 ANNUAL ACCRUAL

SUMMARY

- RADIOLOGICAL 5 Pages Follow

Operational Post-Shutdown Market Unrealized Tax-Adjusted 2019-2021 Remaining Earnings Earnings Value Balance Book Value Gain/Loss Tax-Effect Fund Balance Decommissioning Life (yrs) Rate Rate 1/1/2019 1/1/2019 1/1/2019 Adjustment 1/1/2019 Accrual Monticello 11.75 5.01% 4.43% $496,452,338 $406,139,614 $90,312,724 $25,143,062 $471,309,275 18,350,224 Prairie Island Unit 1 14.67 4.99% 4.15% 492,616,045 388,699,389 103,916,655 28,930,397 463,685,648 486,424 Prairie Island Unit 2 15.83 5.04% 4.09% 461,002,122 365,060,139 95,941,983 26,710,248 434,291,874 1,535,100 TOTAL DECOMMISSIONING ACCRUAL $1,450,070,504 $1,159,899,142 $290,171,362 $80,783,707 $1,369,286,797 $20,371,748 INPUT DATA Escalation Rate (Labor) 4.05%

Escalation Rate (Non-Labor) 2.85%

Escalation Rate (PIIC) 0.00%

Jurisdictional Factor 100.0000%

Tax Rate for tax-effect adjustment 27.84%

Totals may not foot due to rounding.

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Monticello Factors 2017 100.0000% 4.05% 2.85% 0.00%

2030 $20,737,206 $20,737,206 1.6755 $34,745,189 $6,885,496 $6,885,496 1.4410 $9,921,999 $0 $0 1.0000 $0 $27,622,702 $27,622,702 $44,667,188 2031 71,598,501 71,598,501 1.7434 124,824,827 37,812,817 37,812,817 1.4820 56,038,595 0 0 1.0000 0 109,411,318 109,411,318 180,863,421 2032 78,099,040 78,099,040 1.8140 141,671,659 97,618,447 97,618,447 1.5243 148,799,799 0 0 1.0000 0 175,717,487 175,717,487 290,471,458 2033 72,885,419 72,885,419 1.8874 137,563,939 78,973,190 78,973,190 1.5677 123,806,271 0 0 1.0000 0 151,858,609 151,858,609 261,370,210 2034 66,358,913 66,358,913 1.9639 130,322,270 34,978,326 34,978,326 1.6124 56,399,053 0 0 1.0000 0 101,337,239 101,337,239 186,721,322 2035 60,434,430 60,434,430 2.0434 123,491,715 35,562,201 35,562,201 1.6584 58,976,354 0 0 1.0000 0 95,996,631 95,996,631 182,468,069 2036 44,648,601 44,648,601 2.1262 94,931,855 19,196,349 19,196,349 1.7056 32,741,293 0 0 1.0000 0 63,844,950 63,844,950 127,673,148 2037 8,071,158 8,071,158 2.2123 17,855,823 1,021,949 1,021,949 1.7542 1,792,703 0 0 1.0000 0 9,093,107 9,093,107 19,648,526 2038 112,108 112,108 2.3019 258,062 0 0 1.8042 0 0 0 1.0000 0 112,108 112,108 258,062 2039 0 0 2.3951 0 0 0 1.8556 0 0 0 1.0000 0 0 0 0 2040 0 0 2.4921 0 0 0 1.9085 0 0 0 1.0000 0 0 0 0 2041 0 0 2.5930 0 0 0 1.9629 0 0 0 1.0000 0 0 0 0 2042 0 0 2.6981 0 0 0 2.0189 0 0 0 1.0000 0 0 0 0 2043 0 0 2.8073 0 0 0 2.0764 0 0 0 1.0000 0 0 0 0 2044 0 0 2.9210 0 0 0 2.1356 0 0 0 1.0000 0 0 0 0 2045 0 0 3.0393 0 0 0 2.1964 0 0 0 1.0000 0 0 0 0 2046 0 0 3.1624 0 0 0 2.2590 0 0 0 1.0000 0 0 0 0 2047 0 0 3.2905 0 0 0 2.3234 0 0 0 1.0000 0 0 0 0 2048 0 0 3.4238 0 0 0 2.3896 0 0 0 1.0000 0 0 0 0 2049 0 0 3.5624 0 0 0 2.4577 0 0 0 1.0000 0 0 0 0 2050 0 0 3.7067 0 0 0 2.5278 0 0 0 1.0000 0 0 0 0 2051 0 0 3.8568 0 0 0 2.5998 0 0 0 1.0000 0 0 0 0 2052 0 0 4.0130 0 0 0 2.6739 0 0 0 1.0000 0 0 0 0 2053 0 0 4.1756 0 0 0 2.7501 0 0 0 1.0000 0 0 0 0 2054 0 0 4.3447 0 0 0 2.8285 0 0 0 1.0000 0 0 0 0 2055 0 0 4.5206 0 0 0 2.9091 0 0 0 1.0000 0 0 0 0 2056 0 0 4.7037 0 0 0 2.9920 0 0 0 1.0000 0 0 0 0 2057 0 0 4.8942 0 0 0 3.0773 0 0 0 1.0000 0 0 0 0 2058 0 0 5.0924 0 0 0 3.1650 0 0 0 1.0000 0 0 0 0 2059 0 0 5.2987 0 0 0 3.2552 0 0 0 1.0000 0 0 0 0 2060 0 0 5.5133 0 0 0 3.3480 0 0 0 1.0000 0 0 0 0 2061 0 0 5.7366 0 0 0 3.4434 0 0 0 1.0000 0 0 0 0 2062 0 0 5.9689 0 0 0 3.5415 0 0 0 1.0000 0 0 0 0 2063 0 0 6.2106 0 0 0 3.6425 0 0 0 1.0000 0 0 0 0 2064 0 0 6.4622 0 0 0 3.7463 0 0 0 1.0000 0 0 0 0 2065 0 0 6.7239 0 0 0 3.8531 0 0 0 1.0000 0 0 0 0 2066 0 0 6.9962 0 0 0 3.9629 0 0 0 1.0000 0 0 0 0 2067 0 0 7.2795 0 0 0 4.0758 0 0 0 1.0000 0 0 0 0 2068 0 0 7.5744 0 0 0 4.1920 0 0 0 1.0000 0 0 0 0 2069 0 0 7.8811 0 0 0 4.3115 0 0 0 1.0000 0 0 0 0 2070 0 0 8.2003 0 0 0 4.4343 0 0 0 1.0000 0 0 0 0 2071 0 0 8.5324 0 0 0 4.5607 0 0 0 1.0000 0 0 0 0 2072 0 0 8.8780 0 0 0 4.6907 0 0 0 1.0000 0 0 0 0 2073 0 0 9.2375 0 0 0 4.8244 0 0 0 1.0000 0 0 0 0 2074 0 0 9.6117 0 0 0 4.9619 0 0 0 1.0000 0 0 0 0 2075 0 0 10.0009 0 0 0 5.1033 0 0 0 1.0000 0 0 0 0 2076 0 0 10.4060 0 0 0 5.2487 0 0 0 1.0000 0 0 0 0 2077 0 0 10.8274 0 0 0 5.3983 0 0 0 1.0000 0 0 0 0 2078 0 0 11.2659 0 0 0 5.5522 0 0 0 1.0000 0 0 0 0 2079 0 0 11.7222 0 0 0 5.7104 0 0 0 1.0000 0 0 0 0 2080 0 0 12.1970 0 0 0 5.8731 0 0 0 1.0000 0 0 0 0 2081 0 0 12.6909 0 0 0 6.0405 0 0 0 1.0000 0 0 0 0 2082 0 0 13.2049 0 0 0 6.2127 0 0 0 1.0000 0 0 0 0 2083 0 0 13.7397 0 0 0 6.3897 0 0 0 1.0000 0 0 0 0

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s 2084 0 0 14.2962 0 0 0 6.5719 0 0 0 1.0000 0 0 0 0 2085 0 0 14.8752 0 0 0 6.7592 0 0 0 1.0000 0 0 0 0 2086 0 0 15.4776 0 0 0 6.9518 0 0 0 1.0000 0 0 0 0 2087 0 0 16.1045 0 0 0 7.1499 0 0 0 1.0000 0 0 0 0 2088 0 0 16.7567 0 0 0 7.3537 0 0 0 1.0000 0 0 0 0 2089 0 0 17.4353 0 0 0 7.5633 0 0 0 1.0000 0 0 0 0 2090 0 0 18.1415 0 0 0 7.7788 0 0 0 1.0000 0 0 0 0 2091 0 0 18.8762 0 9,198,906 9,198,906 8.0005 73,595,844 0 0 1.0000 0 9,198,906 9,198,906 73,595,844

$422,945,377 $422,945,377 $805,665,339 $321,247,680 $321,247,680 $562,071,909 $0 $0 $0 $744,193,057 $744,193,057 $1,367,737,248

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 1 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2033 $22,082,038 $22,082,038 1.8874 $41,677,639 $9,275,080 $9,275,080 1.5677 $14,540,543 $0 $0 1.0000 $0 $31,357,118 $31,357,118 $56,218,182 2034 $62,549,559 62,549,559 1.9639 122,841,080 $30,657,850 30,657,850 1.6124 49,432,717 $0 0 1.0000 0 93,207,409 93,207,409 172,273,797 2035 $63,867,852 63,867,852 2.0434 130,507,569 $77,940,207 77,940,207 1.6584 129,256,040 $0 0 1.0000 0 141,808,060 141,808,060 259,763,609 2036 $55,757,271 55,757,271 2.1262 118,551,109 $63,315,746 63,315,746 1.7056 107,991,336 $0 0 1.0000 0 119,073,016 119,073,016 226,542,445 2037 $36,580,830 36,580,830 2.2123 80,927,770 $34,792,393 34,792,393 1.7542 61,032,816 $0 0 1.0000 0 71,373,223 71,373,223 141,960,586 2038 $10,332,914 10,332,914 2.3019 23,785,335 $8,897,939 8,897,939 1.8042 16,053,662 $0 0 1.0000 0 19,230,853 19,230,853 39,838,997 2039 $14,386,008 14,386,008 2.3951 34,455,927 $10,352,906 10,352,906 1.8556 19,210,852 $0 0 1.0000 0 24,738,914 24,738,914 53,666,779 2040 $31,351,660 31,351,660 2.4921 78,131,472 $12,423,591 12,423,591 1.9085 23,710,423 $0 0 1.0000 0 43,775,251 43,775,251 101,841,896 2041 $9,799,470 9,799,470 2.5930 25,410,026 $1,791,050 1,791,050 1.9629 3,515,653 $0 0 1.0000 0 11,590,520 11,590,520 28,925,678 2042 $99,305 99,305 2.6981 267,936 $1 1 2.0189 1 $0 0 1.0000 0 99,306 99,306 267,937 2043 $46,524 46,524 2.8073 130,607 $0 0 2.0764 1 $0 0 1.0000 0 46,524 46,524 130,607 2044 $0 0 2.9210 0 $0 0 2.1356 0 $0 0 1.0000 0 0 0 0 2045 $0 0 3.0393 0 $0 0 2.1964 0 $0 0 1.0000 0 0 0 0 2046 $0 0 3.1624 0 $0 0 2.2590 0 $0 0 1.0000 0 0 0 0 2047 $0 0 3.2905 0 $0 0 2.3234 0 $0 0 1.0000 0 0 0 0 2048 $0 0 3.4238 0 $0 0 2.3896 0 $0 0 1.0000 0 0 0 0 2049 $0 0 3.5624 0 $0 0 2.4577 0 $0 0 1.0000 0 0 0 0 2050 $0 0 3.7067 0 $0 0 2.5278 0 $0 0 1.0000 0 0 0 0 2051 $0 0 3.8568 0 $0 0 2.5998 0 $0 0 1.0000 0 0 0 0 2052 $0 0 4.0130 0 $0 0 2.6739 0 $0 0 1.0000 0 0 0 0 2053 $0 0 4.1756 0 $0 0 2.7501 0 $0 0 1.0000 0 0 0 0 2054 $0 0 4.3447 0 $0 0 2.8285 0 $0 0 1.0000 0 0 0 0 2055 $0 0 4.5206 0 $0 0 2.9091 0 $0 0 1.0000 0 0 0 0 2056 $0 0 4.7037 0 $0 0 2.9920 0 $0 0 1.0000 0 0 0 0 2057 $0 0 4.8942 0 $0 0 3.0773 0 $0 0 1.0000 0 0 0 0 2058 $0 0 5.0924 0 $0 0 3.1650 0 $0 0 1.0000 0 0 0 0 2059 $0 0 5.2987 0 $0 0 3.2552 0 $0 0 1.0000 0 0 0 0 2060 $0 0 5.5133 0 $0 0 3.3480 0 $0 0 1.0000 0 0 0 0 2061 $0 0 5.7366 0 $0 0 3.4434 0 $0 0 1.0000 0 0 0 0 2062 $0 0 5.9689 0 $0 0 3.5415 0 $0 0 1.0000 0 0 0 0 2063 $0 0 6.2106 0 $0 0 3.6425 0 $0 0 1.0000 0 0 0 0 2064 $0 0 6.4622 0 $0 0 3.7463 0 $0 0 1.0000 0 0 0 0 2065 $0 0 6.7239 0 $0 0 3.8531 0 $0 0 1.0000 0 0 0 0 2066 $0 0 6.9962 0 $0 0 3.9629 0 $0 0 1.0000 0 0 0 0 2067 $0 0 7.2795 0 $0 0 4.0758 0 $0 0 1.0000 0 0 0 0 2068 $0 0 7.5744 0 $0 0 4.1920 0 $0 0 1.0000 0 0 0 0 2069 $0 0 7.8811 0 $0 0 4.3115 0 $0 0 1.0000 0 0 0 0 2070 $0 0 8.2003 0 $0 0 4.4343 0 $0 0 1.0000 0 0 0 0 2071 $0 0 8.5324 0 $0 0 4.5607 0 $0 0 1.0000 0 0 0 0 2072 $0 0 8.8780 0 $0 0 4.6907 0 $0 0 1.0000 0 0 0 0 2073 $0 0 9.2375 0 $0 0 4.8244 0 $0 0 1.0000 0 0 0 0 2074 $0 0 9.6117 0 $0 0 4.9619 0 $0 0 1.0000 0 0 0 0 2075 $0 0 10.0009 0 $0 0 5.1033 0 $0 0 1.0000 0 0 0 0 2076 $0 0 10.4060 0 $0 0 5.2487 0 $0 0 1.0000 0 0 0 0 2077 $117,000 117,000 10.8274 1,266,806 $11,710,000 11,710,000 5.3983 63,214,093 $0 0 1.0000 0 11,827,000 11,827,000 64,480,899 2078 $0 0 11.2659 0 $0 0 5.5522 0 $0 0 1.0000 0 0 0 0

$306,970,432 $306,970,432 $657,953,276 $261,156,764 $261,156,764 $487,958,137 $0 $0 $0 $568,127,196 $568,127,196 $1,145,911,413

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 2 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2034 $7,714,532 $7,714,532 1.9639 $15,150,569 $4,479,535 $4,479,535 1.6124 $7,222,802 $449,304 $449,304 1.0000 $449,304 $12,643,370 $12,643,370 $22,822,675 2035 46,143,177 46,143,177 2.0434 94,288,967 31,183,034 31,183,034 1.6584 51,713,944 0 - 1.0000 - 77,326,211 77,326,211 146,002,911 2036 65,461,700 65,461,700 2.1262 139,184,666 83,898,481 83,898,481 1.7056 143,097,249 0 - 1.0000 - 149,360,181 149,360,181 282,281,916 2037 68,336,306 68,336,306 2.2123 151,180,411 68,273,481 68,273,481 1.7542 119,765,341 0 - 1.0000 - 136,609,788 136,609,788 270,945,752 2038 42,466,656 42,466,656 2.3019 97,753,995 32,416,217 32,416,217 1.8042 58,485,339 0 - 1.0000 - 74,882,873 74,882,873 156,239,334 2039 19,013,778 19,013,778 2.3951 45,539,899 11,328,797 11,328,797 1.8556 21,021,716 0 - 1.0000 - 30,342,574 30,342,574 66,561,614 2040 36,849,281 36,849,281 2.4921 91,832,094 13,251,487 13,251,487 1.9085 25,290,462 0 - 1.0000 - 50,100,768 50,100,768 117,122,556 2041 12,296,088 12,296,088 2.5930 31,883,755 1,822,524 1,822,524 1.9629 3,577,433 0 - 1.0000 - 14,118,612 14,118,612 35,461,188 2042 42,462 42,462 2.6981 114,567 0 0 2.0189 1 0 - 1.0000 - 42,462 42,462 114,568 2043 19,893 19,893 2.8073 55,846 0 0 2.0764 0 0 - 1.0000 - 19,893 19,893 55,847 2044 0 - 2.9210 - 0 - 2.1356 - 0 - 1.0000 - 0 0 -

2045 0 - 3.0393 - 0 - 2.1964 - 0 - 1.0000 - 0 0 -

2046 0 - 3.1624 - 0 - 2.2590 - 0 - 1.0000 - 0 0 -

2047 0 - 3.2905 - 0 - 2.3234 - 0 - 1.0000 - 0 0 -

2048 0 - 3.4238 - 0 - 2.3896 - 0 - 1.0000 - 0 0 -

2049 0 - 3.5624 - 0 - 2.4577 - 0 - 1.0000 - 0 0 -

2050 0 - 3.7067 - 0 - 2.5278 - 0 - 1.0000 - 0 0 -

2051 0 - 3.8568 - 0 - 2.5998 - 0 - 1.0000 - 0 0 -

2052 0 - 4.0130 - 0 - 2.6739 - 0 - 1.0000 - 0 0 -

2053 0 - 4.1756 - 0 - 2.7501 - 0 - 1.0000 - 0 0 -

2054 0 - 4.3447 - 0 - 2.8285 - 0 - 1.0000 - 0 0 -

2055 0 - 4.5206 - 0 - 2.9091 - 0 - 1.0000 - 0 0 -

2056 0 - 4.7037 - 0 - 2.9920 - 0 - 1.0000 - 0 0 -

2057 0 - 4.8942 - 0 - 3.0773 - 0 - 1.0000 - 0 0 -

2058 0 - 5.0924 - 0 - 3.1650 - 0 - 1.0000 - 0 0 -

2059 0 - 5.2987 - 0 - 3.2552 - 0 - 1.0000 - 0 0 -

2060 0 - 5.5133 - 0 - 3.3480 - 0 - 1.0000 - 0 0 -

2061 0 - 5.7366 - 0 - 3.4434 - 0 - 1.0000 - 0 0 -

2062 0 - 5.9689 - 0 - 3.5415 - 0 - 1.0000 - 0 0 -

2063 0 - 6.2106 - 0 - 3.6425 - 0 - 1.0000 - 0 0 -

2064 0 - 6.4622 - 0 - 3.7463 - 0 - 1.0000 - 0 0 -

2065 0 - 6.7239 - 0 - 3.8531 - 0 - 1.0000 - 0 0 -

2066 0 - 6.9962 - 0 - 3.9629 - 0 - 1.0000 - 0 0 -

2067 0 - 7.2795 - 0 - 4.0758 - 0 - 1.0000 - 0 0 -

2068 0 - 7.5744 - 0 - 4.1920 - 0 - 1.0000 - 0 0 -

2069 0 - 7.8811 - 0 - 4.3115 - 0 - 1.0000 - 0 0 -

2070 0 - 8.2003 - 0 - 4.4343 - 0 - 1.0000 - 0 0 -

2071 0 - 8.5324 - 0 - 4.5607 - 0 - 1.0000 - 0 0 -

2072 0 - 8.8780 - 0 - 4.6907 - 0 - 1.0000 - 0 0 -

2073 0 - 9.2375 - 0 - 4.8244 - 0 - 1.0000 - 0 0 -

2074 0 - 9.6117 - 0 - 4.9619 - 0 - 1.0000 - 0 0 -

2075 0 - 10.0009 - 0 - 5.1033 - 0 - 1.0000 - 0 0 -

2076 0 - 10.4060 - 0 - 5.2487 - 0 - 1.0000 - 0 0 -

2077 116,850 116,850 10.8274 1,265,184 11,709,900 11,709,900 5.3983 63,213,553 0 - 1.0000 - 11,826,750 11,826,750 64,478,737 2078 0 - 11.2659 - 0 - 5.5522 - 0 - 1.0000 - 0 0 -

$298,460,723 $298,460,723 $668,249,954 $258,363,457 $258,363,457 $493,387,841 $449,304 $449,304 $449,304 $557,273,484 $557,273,484 $1,162,087,099

$1,028,376,532 $1,028,376,532 $2,131,868,569 $840,767,901 $840,767,901 $1,543,417,887 $449,304 $449,304 $449,304 $1,869,593,737 $1,869,593,737 $3,675,735,760

ENCLOSURE 6 ANNUAL ACCRUAL

SUMMARY

- SPENT FUEL MANAGEMENT 5 Pages Follow

Operational Post-Shutdown Market Unrealized Tax-Adjusted 2019-2021 Remaining Earnings Earnings Value Balance Book Value Gain/Loss Tax-Effect Fund Balance Decommissioning Life (yrs) Rate Rate 1/1/2019 1/1/2019 1/1/2019 Adjustment 1/1/2019 Accrual Monticello 11.75 5.01% 4.43% $371,357,890 $303,801,873 $67,556,017 $18,807,595 $352,550,295 -

Prairie Island Unit 1 14.67 4.99% 4.15% 38,812,676 30,625,197 8,187,479 2,279,394 36,533,281 -

Prairie Island Unit 2 15.83 5.04% 4.09% 119,237,754 94,422,452 24,815,301 6,908,580 112,329,174 -

TOTAL DECOMMISSIONING ACCRUAL $529,408,319 $428,849,522 $100,558,797 $27,995,569 $501,412,750 -

INPUT DATA Escalation Rate (Labor) 4.05%

Escalation Rate (Non-Labor) 2.85%

Escalation Rate (PIIC) 0.00%

Jurisdictional Factor 100.0000%

Tax Rate for tax-effect adjustment 27.84%

Totals may not foot due to rounding.

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Monticello Factors 2017 100.0000% 4.05% 2.85% 0.00%

2030 $208,258 $208,258 1.6755 $348,936 $2,050,066 $2,050,066 1.4410 $2,954,145 $0 $0 1.0000 $0 $2,258,324 $2,258,324 $3,303,081 2031 208,260 208,260 1.7434 363,080 5,148,536 5,148,536 1.4820 7,630,130 0 0 1.0000 0 5,356,796 5,356,796 7,993,211 2032 208,258 208,258 1.8140 377,780 4,624,285 4,624,285 1.5243 7,048,798 0 0 1.0000 0 4,832,543 4,832,543 7,426,578 2033 5,766,590 5,766,590 1.8874 10,883,862 21,166,235 21,166,235 1.5677 33,182,307 0 0 1.0000 0 26,932,825 26,932,825 44,066,169 2034 16,591 16,591 1.9639 32,583 3,916,236 3,916,236 1.6124 6,314,538 0 0 1.0000 0 3,932,827 3,932,827 6,347,121 2035 26,442,004 26,442,004 2.0434 54,031,591 77,584,815 77,584,815 1.6584 128,666,657 0 0 1.0000 0 104,026,819 104,026,819 182,698,248 2036 5,658,903 5,658,903 2.1262 12,031,960 1,491,988 1,491,988 1.7056 2,544,734 0 0 1.0000 0 7,150,891 7,150,891 14,576,694 2037 5,643,660 5,643,660 2.2123 12,485,469 2,568,826 2,568,826 1.7542 4,506,234 0 0 1.0000 0 8,212,486 8,212,486 16,991,703 2038 5,664,978 5,664,978 2.3019 13,040,213 3,023,782 3,023,782 1.8042 5,455,507 0 0 1.0000 0 8,688,760 8,688,760 18,495,720 2039 5,925,016 5,925,016 2.3951 14,191,006 2,187,162 2,187,162 1.8556 4,058,499 0 0 1.0000 0 8,112,178 8,112,178 18,249,504 2040 5,941,203 5,941,203 2.4921 14,806,072 2,193,018 2,193,018 1.9085 4,185,375 0 0 1.0000 0 8,134,221 8,134,221 18,991,447 2041 5,925,016 5,925,016 2.5930 15,363,566 2,187,162 2,187,162 1.9629 4,293,181 0 0 1.0000 0 8,112,178 8,112,178 19,656,748 2042 5,925,016 5,925,016 2.6981 15,986,286 2,187,162 2,187,162 2.0189 4,415,662 0 0 1.0000 0 8,112,178 8,112,178 20,401,948 2043 5,925,016 5,925,016 2.8073 16,633,297 2,187,162 2,187,162 2.0764 4,541,424 0 0 1.0000 0 8,112,178 8,112,178 21,174,721 2044 5,941,203 5,941,203 2.9210 17,354,254 2,193,018 2,193,018 2.1356 4,683,410 0 0 1.0000 0 8,134,221 8,134,221 22,037,664 2045 5,925,016 5,925,016 3.0393 18,007,901 2,187,162 2,187,162 2.1964 4,803,884 0 0 1.0000 0 8,112,178 8,112,178 22,811,785 2046 5,925,016 5,925,016 3.1624 18,737,271 2,187,162 2,187,162 2.2590 4,940,800 0 0 1.0000 0 8,112,178 8,112,178 23,678,070 2047 5,925,016 5,925,016 3.2905 19,496,265 2,187,162 2,187,162 2.3234 5,081,653 0 0 1.0000 0 8,112,178 8,112,178 24,577,918 2048 6,604,848 6,604,848 3.4238 22,613,679 4,183,953 4,183,953 2.3896 9,997,975 0 0 1.0000 0 10,788,801 10,788,801 32,611,653 2049 5,925,016 5,925,016 3.5624 21,107,277 2,187,162 2,187,162 2.4577 5,375,389 0 0 1.0000 0 8,112,178 8,112,178 26,482,666 2050 7,418,217 7,418,217 3.7067 27,497,105 6,666,766 6,666,766 2.5278 16,852,252 0 0 1.0000 0 14,084,983 14,084,983 44,349,357 2051 7,418,217 7,418,217 3.8568 28,610,579 6,666,766 6,666,766 2.5998 17,332,259 0 0 1.0000 0 14,084,983 14,084,983 45,942,839 2052 8,296,904 8,296,904 4.0130 33,295,476 9,260,122 9,260,122 2.6739 24,760,641 0 0 1.0000 0 17,557,026 17,557,026 58,056,117 2053 8,927,592 8,927,592 4.1756 37,278,053 11,194,891 11,194,891 2.7501 30,787,071 0 0 1.0000 0 20,122,483 20,122,483 68,065,124 2054 7,633,842 7,633,842 4.3447 33,166,753 7,313,641 7,313,641 2.8285 20,686,635 0 0 1.0000 0 14,947,483 14,947,483 53,853,388 2055 8,711,967 8,711,967 4.5206 39,383,318 10,548,016 10,548,016 2.9091 30,685,235 0 0 1.0000 0 19,259,983 19,259,983 70,068,553 2056 9,159,404 9,159,404 4.7037 43,083,089 11,847,622 11,847,622 2.9920 35,448,086 0 0 1.0000 0 21,007,026 21,007,026 78,531,174 2057 5,908,425 5,908,425 4.8942 28,917,014 2,137,389 2,137,389 3.0773 6,577,388 0 0 1.0000 0 8,045,814 8,045,814 35,494,402 2058 5,908,425 5,908,425 5.0924 30,088,063 2,137,389 2,137,389 3.1650 6,764,838 0 0 1.0000 0 8,045,814 8,045,814 36,852,901 2059 5,908,425 5,908,425 5.2987 31,306,972 2,137,389 2,137,389 3.2552 6,957,630 0 0 1.0000 0 8,045,814 8,045,814 38,264,602 2060 5,924,612 5,924,612 5.5133 32,664,163 2,143,245 2,143,245 3.3480 7,175,585 0 0 1.0000 0 8,067,857 8,067,857 39,839,749 2061 5,908,425 5,908,425 5.7366 33,894,271 2,137,389 2,137,389 3.4434 7,359,887 0 0 1.0000 0 8,045,814 8,045,814 41,254,158 2062 5,908,425 5,908,425 5.9689 35,266,798 2,137,389 2,137,389 3.5415 7,569,565 0 0 1.0000 0 8,045,814 8,045,814 42,836,363 2063 5,908,425 5,908,425 6.2106 36,694,864 2,137,389 2,137,389 3.6425 7,785,441 0 0 1.0000 0 8,045,814 8,045,814 44,480,305 2064 5,924,612 5,924,612 6.4622 38,286,028 2,143,245 2,143,245 3.7463 8,029,240 0 0 1.0000 0 8,067,857 8,067,857 46,315,267 2065 5,908,425 5,908,425 6.7239 39,727,659 2,137,389 2,137,389 3.8531 8,235,575 0 0 1.0000 0 8,045,814 8,045,814 47,963,234 2066 5,908,425 5,908,425 6.9962 41,336,523 2,137,389 2,137,389 3.9629 8,470,261 0 0 1.0000 0 8,045,814 8,045,814 49,806,784 2067 5,908,425 5,908,425 7.2795 43,010,380 2,137,389 2,137,389 4.0758 8,711,572 0 0 1.0000 0 8,045,814 8,045,814 51,721,952 2068 5,924,612 5,924,612 7.5744 44,875,381 2,143,245 2,143,245 4.1920 8,984,484 0 0 1.0000 0 8,067,857 8,067,857 53,859,865 2069 5,908,425 5,908,425 7.8811 46,564,888 2,137,389 2,137,389 4.3115 9,215,354 0 0 1.0000 0 8,045,814 8,045,814 55,780,243 2070 5,908,425 5,908,425 8.2003 48,450,858 2,137,389 2,137,389 4.4343 9,477,826 0 0 1.0000 0 8,045,814 8,045,814 57,928,683 2071 5,908,425 5,908,425 8.5324 50,413,045 2,137,389 2,137,389 4.5607 9,747,992 0 0 1.0000 0 8,045,814 8,045,814 60,161,037 2072 5,924,612 5,924,612 8.8780 52,598,705 2,143,245 2,143,245 4.6907 10,053,321 0 0 1.0000 0 8,067,857 8,067,857 62,652,026 2073 5,908,425 5,908,425 9.2375 54,579,076 2,137,389 2,137,389 4.8244 10,311,622 0 0 1.0000 0 8,045,814 8,045,814 64,890,697 2074 5,908,425 5,908,425 9.6117 56,790,009 2,137,389 2,137,389 4.9619 10,605,513 0 0 1.0000 0 8,045,814 8,045,814 67,395,521 2075 5,908,425 5,908,425 10.0009 59,089,568 2,137,389 2,137,389 5.1033 10,907,739 0 0 1.0000 0 8,045,814 8,045,814 69,997,307 2076 5,924,612 5,924,612 10.4060 61,651,512 2,143,245 2,143,245 5.2487 11,249,251 0 0 1.0000 0 8,067,857 8,067,857 72,900,764 2077 5,908,425 5,908,425 10.8274 63,972,881 2,137,389 2,137,389 5.3983 11,538,269 0 0 1.0000 0 8,045,814 8,045,814 75,511,150 2078 6,386,857 6,386,857 11.2659 71,953,692 3,557,353 3,557,353 5.5522 19,751,134 0 0 1.0000 0 9,944,210 9,944,210 91,704,827 2079 6,482,543 6,482,543 11.7222 75,989,666 3,844,412 3,844,412 5.7104 21,953,129 0 0 1.0000 0 10,326,955 10,326,955 97,942,795 2080 6,403,045 6,403,045 12.1970 78,097,940 3,563,167 3,563,167 5.8731 20,926,834 0 0 1.0000 0 9,966,212 9,966,212 99,024,774 2081 6,386,857 6,386,857 12.6909 81,054,964 3,557,353 3,557,353 6.0405 21,488,190 0 0 1.0000 0 9,944,210 9,944,210 102,543,153 2082 6,386,857 6,386,857 13.2049 84,337,808 3,557,353 3,557,353 6.2127 22,100,766 0 0 1.0000 0 9,944,210 9,944,210 106,438,574 2083 6,482,543 6,482,543 13.7397 89,068,196 3,844,412 3,844,412 6.3897 24,564,638 0 0 1.0000 0 10,326,955 10,326,955 113,632,834 2084 6,403,045 6,403,045 14.2962 91,539,212 3,563,167 3,563,167 6.5719 23,416,775 0 0 1.0000 0 9,966,212 9,966,212 114,955,987

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s 2085 6,386,857 6,386,857 14.8752 95,005,775 3,557,353 3,557,353 6.7592 24,044,859 0 0 1.0000 0 9,944,210 9,944,210 119,050,634 2086 6,386,857 6,386,857 15.4776 98,853,218 3,557,353 3,557,353 6.9518 24,730,005 0 0 1.0000 0 9,944,210 9,944,210 123,583,223 2087 6,482,543 6,482,543 16.1045 104,398,114 3,844,412 3,844,412 7.1499 27,487,160 0 0 1.0000 0 10,326,955 10,326,955 131,885,274 2088 7,066,689 7,066,689 16.7567 118,414,388 5,554,101 5,554,101 7.3537 40,843,190 0 0 1.0000 0 12,620,790 12,620,790 159,257,578 2089 6,386,857 6,386,857 17.4353 111,356,768 3,557,353 3,557,353 7.5633 26,905,326 0 0 1.0000 0 9,944,210 9,944,210 138,262,094 2090 6,099,798 6,099,798 18.1415 110,659,485 2,696,175 2,696,175 7.7788 20,973,005 0 0 1.0000 0 8,795,973 8,795,973 131,632,490 2091 906,373 906,373 18.8762 17,108,874 13,947,776 13,947,776 8.0005 111,589,180 0 0 1.0000 0 14,854,149 14,854,149 128,698,054

$382,076,608 $382,076,608 $2,698,223,478 $318,256,078 $318,256,078 $1,047,735,024 $0 $0 $0 $700,332,685 $700,332,685 $3,745,958,502

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 1 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2033 $0 $0 1.8874 $0 $453,879 $453,879 1.5677 $711,546 $1,250,000 $1,250,000 1.0000 $1,250,000 $1,703,879 $1,703,879 $1,961,546 2034 0 0 1.9639 0 2,739,769 2,739,769 1.6124 4,417,604 1,250,000 1,250,000 1.0000 1,250,000 3,989,769 3,989,769 5,667,604 2035 427,656 427,656 2.0434 873,872 3,252,840 3,252,840 1.6584 5,394,511 1,250,000 1,250,000 1.0000 1,250,000 4,930,496 4,930,496 7,518,383 2036 95,830 95,830 2.1262 203,754 2,228,076 2,228,076 1.7056 3,800,207 1,250,000 1,250,000 1.0000 1,250,000 3,573,906 3,573,906 5,253,960 2037 95,836 95,836 2.2123 212,018 2,064,184 2,064,184 1.7542 3,620,992 1,250,000 1,250,000 1.0000 1,250,000 3,410,020 3,410,020 5,083,010 2038 2,875,000 2,875,000 2.3019 6,617,963 10,096,752 10,096,752 1.8042 18,216,560 1,250,000 1,250,000 1.0000 1,250,000 14,221,752 14,221,752 26,084,522 2039 21,649,847 21,649,847 2.3951 51,853,549 66,123,822 66,123,822 1.8556 122,699,364 1,250,000 1,250,000 1.0000 1,250,000 89,023,669 89,023,669 175,802,912 2040 567,896 567,896 2.4921 1,415,254 942,015 942,015 1.9085 1,797,835 1,250,000 1,250,000 1.0000 1,250,000 2,759,911 2,759,911 4,463,089 2041 2,070,248 2,070,248 2.5930 5,368,153 1,862,875 1,862,875 1.9629 3,656,636 1,250,000 1,250,000 1.0000 1,250,000 5,183,123 5,183,123 10,274,790 2042 2,871,369 2,871,369 2.6981 7,747,241 2,786,090 2,786,090 2.0189 5,624,838 1,250,000 1,250,000 1.0000 1,250,000 6,907,459 6,907,459 14,622,078 2043 2,964,426 2,964,426 2.8073 8,322,033 2,331,231 2,331,231 2.0764 4,840,567 1,250,000 1,250,000 1.0000 1,250,000 6,545,657 6,545,657 14,412,600 2044 3,054,798 3,054,798 2.9210 8,923,065 1,939,011 1,939,011 2.1356 4,140,951 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 14,314,016 2045 3,046,451 3,046,451 3.0393 9,259,079 1,930,298 1,930,298 2.1964 4,239,705 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 14,748,784 2046 3,046,451 3,046,451 3.1624 9,634,097 1,930,298 1,930,298 2.2590 4,360,542 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 15,244,639 2047 3,046,451 3,046,451 3.2905 10,024,347 1,930,298 1,930,298 2.3234 4,484,853 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 15,759,200 2048 3,054,798 3,054,798 3.4238 10,459,017 1,939,011 1,939,011 2.3896 4,633,460 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 16,342,477 2049 3,046,451 3,046,451 3.5624 10,852,677 1,930,298 1,930,298 2.4577 4,744,092 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 16,846,769 2050 3,046,451 3,046,451 3.7067 11,292,280 1,930,298 1,930,298 2.5278 4,879,406 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 17,421,686 2051 3,046,451 3,046,451 3.8568 11,749,552 1,930,298 1,930,298 2.5998 5,018,388 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 18,017,940 2052 3,054,798 3,054,798 4.0130 12,258,904 1,939,011 1,939,011 2.6739 5,184,721 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 18,693,625 2053 3,142,138 3,142,138 4.1756 13,120,311 2,217,357 2,217,357 2.7501 6,097,952 1,250,000 1,250,000 1.0000 1,250,000 6,609,495 6,609,495 20,468,264 2054 3,237,824 3,237,824 4.3447 14,067,374 2,504,416 2,504,416 2.8285 7,083,739 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 22,401,113 2055 3,237,824 3,237,824 4.5206 14,636,907 2,504,416 2,504,416 2.9091 7,285,595 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 23,172,502 2056 3,294,014 3,294,014 4.7037 15,494,054 2,656,659 2,656,659 2.9920 7,948,723 1,250,000 1,250,000 1.0000 1,250,000 7,200,673 7,200,673 24,692,776 2057 3,189,981 3,189,981 4.8942 15,612,405 2,360,887 2,360,887 3.0773 7,265,156 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 24,127,561 2058 3,333,510 3,333,510 5.0924 16,975,566 2,791,475 2,791,475 3.1650 8,835,017 1,250,000 1,250,000 1.0000 1,250,000 7,374,985 7,374,985 27,060,583 2059 3,189,981 3,189,981 5.2987 16,902,752 2,360,887 2,360,887 3.2552 7,685,158 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 25,837,910 2060 3,150,484 3,150,484 5.5133 17,369,563 2,226,070 2,226,070 3.3480 7,452,881 1,250,000 1,250,000 1.0000 1,250,000 6,626,554 6,626,554 26,072,445 2061 3,237,824 3,237,824 5.7366 18,574,101 2,504,416 2,504,416 3.4434 8,623,704 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 28,447,806 2062 3,237,824 3,237,824 5.9689 19,326,248 2,504,416 2,504,416 3.5415 8,869,388 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 29,445,635 2063 3,189,981 3,189,981 6.2106 19,811,696 2,360,887 2,360,887 3.6425 8,599,529 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 29,661,225 2064 3,246,170 3,246,170 6.4622 20,977,400 2,513,129 2,513,129 3.7463 9,414,934 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 31,642,334 2065 3,237,824 3,237,824 6.7239 21,770,805 2,504,416 2,504,416 3.8531 9,649,763 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 32,670,568 2066 3,189,981 3,189,981 6.9962 22,317,745 2,360,887 2,360,887 3.9629 9,355,957 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 32,923,702 2067 3,237,824 3,237,824 7.2795 23,569,740 2,504,416 2,504,416 4.0758 10,207,497 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 35,027,237 2068 3,246,170 3,246,170 7.5744 24,587,790 2,513,129 2,513,129 4.1920 10,535,035 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 36,372,825 2069 3,189,981 3,189,981 7.8811 25,140,559 2,360,887 2,360,887 4.3115 10,178,962 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 36,569,522 2070 3,237,824 3,237,824 8.2003 26,551,128 2,504,416 2,504,416 4.4343 11,105,330 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 38,906,458 2071 3,237,824 3,237,824 8.5324 27,626,409 2,504,416 2,504,416 4.5607 11,421,888 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 40,298,297 2072 3,246,170 3,246,170 8.8780 28,819,497 2,513,129 2,513,129 4.6907 11,788,333 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 41,857,830 2073 3,237,824 3,237,824 9.2375 29,909,399 2,504,416 2,504,416 4.8244 12,082,302 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 43,241,701 2074 3,237,824 3,237,824 9.6117 31,120,993 2,504,416 2,504,416 4.9619 12,426,659 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 44,797,652 2075 3,569,646 3,569,646 10.0009 35,699,673 3,499,884 3,499,884 5.1033 17,860,956 1,250,000 1,250,000 1.0000 1,250,000 8,319,530 8,319,530 54,810,628 2076 3,246,170 3,246,170 10.4060 33,779,645 2,513,129 2,513,129 5.2487 13,190,658 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 48,220,303 2077 3,120,974 3,120,974 10.8274 33,792,034 2,442,775 2,442,775 5.3983 13,186,830 1,250,000 1,250,000 1.0000 1,250,000 6,813,749 6,813,749 48,228,864 2078 443,864 443,864 11.2659 5,000,531 4,046,900 4,046,900 5.5522 22,469,198 0 0 1.0000 0 4,490,764 4,490,764 27,469,730

$142,428,663 $142,428,663 $749,621,181 $179,062,570 $179,062,570 $487,087,923 $56,250,000 $56,250,000 $56,250,000 $377,741,233 $377,741,233 $1,292,959,104

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 2 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2034 $0 $0 1.9639 $0 $0 $0 1.6124 $0 $800,696 $800,696 1.0000 $800,696 $800,696 $800,696 $800,696 2035 427,650 427,650 2.0434 873,860 4,418,304 4,418,304 1.6584 7,327,316 1,250,000 1,250,000 1.0000 1,250,000 6,095,954 6,095,954 9,451,176 2036 95,831 95,831 2.1262 203,756 2,343,000 2,343,000 1.7056 3,996,221 1,250,000 1,250,000 1.0000 1,250,000 3,688,831 3,688,831 5,449,976 2037 95,830 95,830 2.2123 212,005 2,220,008 2,220,008 1.7542 3,894,338 1,250,000 1,250,000 1.0000 1,250,000 3,565,838 3,565,838 5,356,342 2038 2,875,001 2,875,001 2.3019 6,617,965 10,336,971 10,336,971 1.8042 18,649,963 1,250,000 1,250,000 1.0000 1,250,000 14,461,972 14,461,972 26,517,928 2039 21,649,847 21,649,847 2.3951 51,853,549 66,123,821 66,123,821 1.8556 122,699,362 1,250,000 1,250,000 1.0000 1,250,000 89,023,668 89,023,668 175,802,911 2040 567,896 567,896 2.4921 1,415,254 942,015 942,015 1.9085 1,797,835 1,250,000 1,250,000 1.0000 1,250,000 2,759,911 2,759,911 4,463,089 2041 2,070,248 2,070,248 2.5930 5,368,153 1,862,875 1,862,875 1.9629 3,656,636 1,250,000 1,250,000 1.0000 1,250,000 5,183,123 5,183,123 10,274,790 2042 2,871,369 2,871,369 2.6981 7,747,241 2,786,090 2,786,090 2.0189 5,624,838 1,250,000 1,250,000 1.0000 1,250,000 6,907,459 6,907,459 14,622,078 2043 2,964,426 2,964,426 2.8073 8,322,033 2,331,231 2,331,231 2.0764 4,840,567 1,250,000 1,250,000 1.0000 1,250,000 6,545,657 6,545,657 14,412,600 2044 3,054,798 3,054,798 2.9210 8,923,065 1,939,011 1,939,011 2.1356 4,140,951 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 14,314,016 2045 3,046,451 3,046,451 3.0393 9,259,079 1,930,298 1,930,298 2.1964 4,239,705 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 14,748,784 2046 3,046,451 3,046,451 3.1624 9,634,097 1,930,298 1,930,298 2.2590 4,360,542 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 15,244,639 2047 3,046,451 3,046,451 3.2905 10,024,347 1,930,298 1,930,298 2.3234 4,484,853 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 15,759,200 2048 3,054,798 3,054,798 3.4238 10,459,017 1,939,011 1,939,011 2.3896 4,633,460 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 16,342,477 2049 3,046,451 3,046,451 3.5624 10,852,677 1,930,298 1,930,298 2.4577 4,744,092 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 16,846,769 2050 3,046,451 3,046,451 3.7067 11,292,280 1,930,298 1,930,298 2.5278 4,879,406 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 17,421,686 2051 3,046,451 3,046,451 3.8568 11,749,552 1,930,298 1,930,298 2.5998 5,018,388 1,250,000 1,250,000 1.0000 1,250,000 6,226,749 6,226,749 18,017,940 2052 3,054,798 3,054,798 4.0130 12,258,904 1,939,011 1,939,011 2.6739 5,184,721 1,250,000 1,250,000 1.0000 1,250,000 6,243,809 6,243,809 18,693,625 2053 3,142,138 3,142,138 4.1756 13,120,311 2,217,358 2,217,358 2.7501 6,097,955 1,250,000 1,250,000 1.0000 1,250,000 6,609,496 6,609,496 20,468,266 2054 3,237,824 3,237,824 4.3447 14,067,374 2,504,416 2,504,416 2.8285 7,083,739 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 22,401,113 2055 3,237,824 3,237,824 4.5206 14,636,907 2,504,416 2,504,416 2.9091 7,285,595 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 23,172,502 2056 3,294,014 3,294,014 4.7037 15,494,054 2,656,659 2,656,659 2.9920 7,948,723 1,250,000 1,250,000 1.0000 1,250,000 7,200,673 7,200,673 24,692,776 2057 3,189,981 3,189,981 4.8942 15,612,405 2,360,887 2,360,887 3.0773 7,265,156 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 24,127,561 2058 3,333,510 3,333,510 5.0924 16,975,566 2,791,475 2,791,475 3.1650 8,835,017 1,250,000 1,250,000 1.0000 1,250,000 7,374,985 7,374,985 27,060,583 2059 3,189,981 3,189,981 5.2987 16,902,752 2,360,887 2,360,887 3.2552 7,685,158 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 25,837,910 2060 3,150,484 3,150,484 5.5133 17,369,563 2,226,070 2,226,070 3.3480 7,452,881 1,250,000 1,250,000 1.0000 1,250,000 6,626,554 6,626,554 26,072,445 2061 3,237,824 3,237,824 5.7366 18,574,101 2,504,416 2,504,416 3.4434 8,623,704 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 28,447,806 2062 3,237,824 3,237,824 5.9689 19,326,248 2,504,416 2,504,416 3.5415 8,869,388 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 29,445,635 2063 3,189,981 3,189,981 6.2106 19,811,696 2,360,887 2,360,887 3.6425 8,599,529 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 29,661,225 2064 3,246,170 3,246,170 6.4622 20,977,400 2,513,129 2,513,129 3.7463 9,414,934 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 31,642,334 2065 3,237,824 3,237,824 6.7239 21,770,805 2,504,416 2,504,416 3.8531 9,649,763 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 32,670,568 2066 3,189,981 3,189,981 6.9962 22,317,745 2,360,887 2,360,887 3.9629 9,355,957 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 32,923,702 2067 3,237,824 3,237,824 7.2795 23,569,740 2,504,416 2,504,416 4.0758 10,207,497 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 35,027,237 2068 3,246,170 3,246,170 7.5744 24,587,790 2,513,129 2,513,129 4.1920 10,535,035 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 36,372,825 2069 3,189,981 3,189,981 7.8811 25,140,559 2,360,887 2,360,887 4.3115 10,178,962 1,250,000 1,250,000 1.0000 1,250,000 6,800,868 6,800,868 36,569,522 2070 3,237,824 3,237,824 8.2003 26,551,128 2,504,416 2,504,416 4.4343 11,105,330 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 38,906,458 2071 3,237,824 3,237,824 8.5324 27,626,409 2,504,416 2,504,416 4.5607 11,421,888 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 40,298,297 2072 3,246,170 3,246,170 8.8780 28,819,497 2,513,129 2,513,129 4.6907 11,788,333 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 41,857,830 2073 3,237,824 3,237,824 9.2375 29,909,399 2,504,416 2,504,416 4.8244 12,082,302 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 43,241,701 2074 3,237,824 3,237,824 9.6117 31,120,993 2,504,416 2,504,416 4.9619 12,426,659 1,250,000 1,250,000 1.0000 1,250,000 6,992,240 6,992,240 44,797,652 2075 3,569,646 3,569,646 10.0009 35,699,673 3,499,884 3,499,884 5.1033 17,860,956 1,250,000 1,250,000 1.0000 1,250,000 8,319,530 8,319,530 54,810,628 2076 3,246,170 3,246,170 10.4060 33,779,645 2,513,129 2,513,129 5.2487 13,190,658 1,250,000 1,250,000 1.0000 1,250,000 7,009,299 7,009,299 48,220,303 2077 3,120,974 3,120,974 10.8274 33,792,034 2,442,775 2,442,775 5.3983 13,186,830 1,250,000 1,250,000 1.0000 1,250,000 6,813,749 6,813,749 48,228,864 2078 443,864 443,864 11.2659 5,000,531 4,046,900 4,046,900 5.5522 22,469,198 0 - 1.0000 - 4,490,764 4,490,764 27,469,730

$142,428,653 $142,428,653 $749,621,160 $177,545,353 $177,545,353 $484,794,343 $54,550,696 $54,550,696 $54,550,696 $374,524,702 $374,524,702 $1,288,966,199

$666,933,925 $666,933,925 $4,197,465,818 $674,864,000 $674,864,000 $2,019,617,289 $110,800,696 $110,800,696 $110,800,696 $1,452,598,621 $1,452,598,621 $6,327,883,804

ENCLOSURE 7 ANNUAL ACCRUAL

SUMMARY

- SITE RESTORATION 5 Pages Follow

Operational Post-Shutdown Market Unrealized Tax-Adjusted 2019-2021 Remaining Earnings Earnings Value Balance Book Value Gain/Loss Tax-Effect Fund Balance Decommissioning Life (yrs) Rate Rate 1/1/2019 1/1/2019 1/1/2019 Adjustment 1/1/2019 Accrual Monticello 11.75 5.01% 4.43% $43,467,856 $35,560,349 $7,907,507 $2,201,450 $41,266,406 -

Prairie Island Unit 1 14.67 4.99% 4.15% 6,445,865 5,086,119 1,359,746 378,553 6,067,311 -

Prairie Island Unit 2 15.83 5.04% 4.09% 25,316,105 20,047,415 5,268,690 1,466,803 23,849,302 -

TOTAL DECOMMISSIONING ACCRUAL $75,229,826 $60,693,883 $14,535,943 $4,046,807 $71,183,019 -

INPUT DATA Escalation Rate (Labor) 4.05%

Escalation Rate (Non-Labor) 2.85%

Escalation Rate (PIIC) 0.00%

Jurisdictional Factor 100.0000%

Tax Rate for tax-effect adjustment 27.84%

Totals may not foot due to rounding.

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Monticello Factors 2017 100.0000% 4.05% 2.85% 0.00%

2030 $158,156 $158,156 1.6755 $264,990 $0 $0 1.4410 $0 $0 $0 1.0000 $0 $158,156 $158,156 $264,990 2031 609,481 609,481 1.7434 1,062,568 0 0 1.4820 0 0 0 1.0000 0 609,481 609,481 1,062,568 2032 169,059 169,059 1.8140 306,673 20,457 20,457 1.5243 31,183 0 0 1.0000 0 189,516 189,516 337,856 2033 11,218 11,218 1.8874 21,173 16,240 16,240 1.5677 25,459 0 0 1.0000 0 27,458 27,458 46,633 2034 4,918 4,918 1.9639 9,659 110 110 1.6124 177 0 0 1.0000 0 5,028 5,028 9,836 2035 3,369 3,369 2.0434 6,883 75 75 1.6584 125 0 0 1.0000 0 3,444 3,444 7,008 2036 0 0 2.1262 0 0 0 1.7056 0 0 0 1.0000 0 0 0 0 2037 20,908,308 20,908,308 2.2123 46,255,451 10,606,108 10,606,108 1.7542 18,605,235 0 0 1.0000 0 31,514,417 31,514,417 64,860,686 2038 23,804,392 23,804,392 2.3019 54,795,329 12,075,197 12,075,197 1.8042 21,786,071 0 0 1.0000 0 35,879,589 35,879,589 76,581,400 2039 0 0 2.3951 0 0 0 1.8556 0 0 0 1.0000 0 0 0 0 2040 0 0 2.4921 0 0 0 1.9085 0 0 0 1.0000 0 0 0 0 2041 0 0 2.5930 0 0 0 1.9629 0 0 0 1.0000 0 0 0 0 2042 0 0 2.6981 0 0 0 2.0189 0 0 0 1.0000 0 0 0 0 2043 0 0 2.8073 0 0 0 2.0764 0 0 0 1.0000 0 0 0 0 2044 0 0 2.9210 0 0 0 2.1356 0 0 0 1.0000 0 0 0 0 2045 0 0 3.0393 0 0 0 2.1964 0 0 0 1.0000 0 0 0 0 2046 0 0 3.1624 0 0 0 2.2590 0 0 0 1.0000 0 0 0 0 2047 0 0 3.2905 0 0 0 2.3234 0 0 0 1.0000 0 0 0 0 2048 0 0 3.4238 0 0 0 2.3896 0 0 0 1.0000 0 0 0 0 2049 0 0 3.5624 0 0 0 2.4577 0 0 0 1.0000 0 0 0 0 2050 0 0 3.7067 0 0 0 2.5278 0 0 0 1.0000 0 0 0 0 2051 0 0 3.8568 0 0 0 2.5998 0 0 0 1.0000 0 0 0 0 2052 0 0 4.0130 0 0 0 2.6739 0 0 0 1.0000 0 0 0 0 2053 0 0 4.1756 0 0 0 2.7501 0 0 0 1.0000 0 0 0 0 2054 0 0 4.3447 0 0 0 2.8285 0 0 0 1.0000 0 0 0 0 2055 0 0 4.5206 0 0 0 2.9091 0 0 0 1.0000 0 0 0 0 2056 0 0 4.7037 0 0 0 2.9920 0 0 0 1.0000 0 0 0 0 2057 0 0 4.8942 0 0 0 3.0773 0 0 0 1.0000 0 0 0 0 2058 0 0 5.0924 0 0 0 3.1650 0 0 0 1.0000 0 0 0 0 2059 0 0 5.2987 0 0 0 3.2552 0 0 0 1.0000 0 0 0 0 2060 0 0 5.5133 0 0 0 3.3480 0 0 0 1.0000 0 0 0 0 2061 0 0 5.7366 0 0 0 3.4434 0 0 0 1.0000 0 0 0 0 2062 0 0 5.9689 0 0 0 3.5415 0 0 0 1.0000 0 0 0 0 2063 0 0 6.2106 0 0 0 3.6425 0 0 0 1.0000 0 0 0 0 2064 0 0 6.4622 0 0 0 3.7463 0 0 0 1.0000 0 0 0 0 2065 0 0 6.7239 0 0 0 3.8531 0 0 0 1.0000 0 0 0 0 2066 0 0 6.9962 0 0 0 3.9629 0 0 0 1.0000 0 0 0 0 2067 0 0 7.2795 0 0 0 4.0758 0 0 0 1.0000 0 0 0 0 2068 0 0 7.5744 0 0 0 4.1920 0 0 0 1.0000 0 0 0 0 2069 0 0 7.8811 0 0 0 4.3115 0 0 0 1.0000 0 0 0 0 2070 0 0 8.2003 0 0 0 4.4343 0 0 0 1.0000 0 0 0 0 2071 0 0 8.5324 0 0 0 4.5607 0 0 0 1.0000 0 0 0 0 2072 0 0 8.8780 0 0 0 4.6907 0 0 0 1.0000 0 0 0 0 2073 0 0 9.2375 0 0 0 4.8244 0 0 0 1.0000 0 0 0 0 2074 0 0 9.6117 0 0 0 4.9619 0 0 0 1.0000 0 0 0 0 2075 0 0 10.0009 0 0 0 5.1033 0 0 0 1.0000 0 0 0 0 2076 0 0 10.4060 0 0 0 5.2487 0 0 0 1.0000 0 0 0 0 2077 0 0 10.8274 0 0 0 5.3983 0 0 0 1.0000 0 0 0 0 2078 0 0 11.2659 0 0 0 5.5522 0 0 0 1.0000 0 0 0 0 2079 0 0 11.7222 0 0 0 5.7104 0 0 0 1.0000 0 0 0 0 2080 0 0 12.1970 0 0 0 5.8731 0 0 0 1.0000 0 0 0 0 2081 0 0 12.6909 0 0 0 6.0405 0 0 0 1.0000 0 0 0 0 2082 0 0 13.2049 0 0 0 6.2127 0 0 0 1.0000 0 0 0 0 2083 0 0 13.7397 0 0 0 6.3897 0 0 0 1.0000 0 0 0 0 2084 0 0 14.2962 0 0 0 6.5719 0 0 0 1.0000 0 0 0 0

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s 2085 0 0 14.8752 0 0 0 6.7592 0 0 0 1.0000 0 0 0 0 2086 0 0 15.4776 0 0 0 6.9518 0 0 0 1.0000 0 0 0 0 2087 0 0 16.1045 0 0 0 7.1499 0 0 0 1.0000 0 0 0 0 2088 0 0 16.7567 0 0 0 7.3537 0 0 0 1.0000 0 0 0 0 2089 0 0 17.4353 0 0 0 7.5633 0 0 0 1.0000 0 0 0 0 2090 0 0 18.1415 0 0 0 7.7788 0 0 0 1.0000 0 0 0 0 2091 1,128,517 1,128,517 18.8762 21,302,113 1,808,329 1,808,329 8.0005 14,467,533 0 0 1.0000 0 2,936,846 2,936,846 35,769,645

$46,797,417 $46,797,417 $124,024,839 $24,526,516 $24,526,516 $54,915,783 $0 $0 $0 $71,323,933 $71,323,933 $178,940,622

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 1 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2033 $242,314 $242,314 1.8874 $457,343 $0 $0 1.5677 $0 $0 $0 1.0000 $0 $242,314 $242,314 $457,343 2034 1,032,687 1,032,687 1.9639 2,028,095 0 0 1.6124 0 0 0 1.0000 0 1,032,687 1,032,687 2,028,095 2035 1,581,782 1,581,782 2.0434 3,232,214 46,888 46,888 1.6584 77,759 0 0 1.0000 0 1,628,670 1,628,670 3,309,972 2036 1,906,215 1,906,215 2.1262 4,052,993 51,197 51,197 1.7056 87,322 0 0 1.0000 0 1,957,412 1,957,412 4,140,315 2037 1,434,281 1,434,281 2.2123 3,173,059 33,094 33,094 1.7542 58,053 0 0 1.0000 0 1,467,374 1,467,374 3,231,112 2038 0 0 2.3019 0 0 0 1.8042 0 0 0 1.0000 0 0 0 0 2039 0 0 2.3951 0 0 0 1.8556 0 0 0 1.0000 0 0 0 0 2040 0 0 2.4921 0 0 0 1.9085 0 0 0 1.0000 0 0 0 0 2041 7,701,600 7,701,600 2.5930 19,970,249 5,791,948 5,791,948 1.9629 11,369,014 0 0 1.0000 0 13,493,548 13,493,548 31,339,263 2042 11,811,277 11,811,277 2.6981 31,868,008 8,882,609 8,882,609 2.0189 17,933,099 0 0 1.0000 0 20,693,886 20,693,886 49,801,107 2043 5,533,503 5,533,503 2.8073 15,534,202 4,161,441 4,161,441 2.0764 8,640,817 0 0 1.0000 0 9,694,944 9,694,944 24,175,019 2044 0 0 2.9210 0 0 0 2.1356 0 0 0 1.0000 0 0 0 0 2045 0 0 3.0393 0 0 0 2.1964 0 0 0 1.0000 0 0 0 0 2046 0 0 3.1624 0 0 0 2.2590 0 0 0 1.0000 0 0 0 0 2047 0 0 3.2905 0 0 0 2.3234 0 0 0 1.0000 0 0 0 0 2048 0 0 3.4238 0 0 0 2.3896 0 0 0 1.0000 0 0 0 0 2049 0 0 3.5624 0 0 0 2.4577 0 0 0 1.0000 0 0 0 0 2050 0 0 3.7067 0 0 0 2.5278 0 0 0 1.0000 0 0 0 0 2051 0 0 3.8568 0 0 0 2.5998 0 0 0 1.0000 0 0 0 0 2052 0 0 4.0130 0 0 0 2.6739 0 0 0 1.0000 0 0 0 0 2053 0 0 4.1756 0 0 0 2.7501 0 0 0 1.0000 0 0 0 0 2054 0 0 4.3447 0 0 0 2.8285 0 0 0 1.0000 0 0 0 0 2055 0 0 4.5206 0 0 0 2.9091 0 0 0 1.0000 0 0 0 0 2056 0 0 4.7037 0 0 0 2.9920 0 0 0 1.0000 0 0 0 0 2057 0 0 4.8942 0 0 0 3.0773 0 0 0 1.0000 0 0 0 0 2058 0 0 5.0924 0 0 0 3.1650 0 0 0 1.0000 0 0 0 0 2059 0 0 5.2987 0 0 0 3.2552 0 0 0 1.0000 0 0 0 0 2060 0 0 5.5133 0 0 0 3.3480 0 0 0 1.0000 0 0 0 0 2061 0 0 5.7366 0 0 0 3.4434 0 0 0 1.0000 0 0 0 0 2062 0 0 5.9689 0 0 0 3.5415 0 0 0 1.0000 0 0 0 0 2063 0 0 6.2106 0 0 0 3.6425 0 0 0 1.0000 0 0 0 0 2064 0 0 6.4622 0 0 0 3.7463 0 0 0 1.0000 0 0 0 0 2065 0 0 6.7239 0 0 0 3.8531 0 0 0 1.0000 0 0 0 0 2066 0 0 6.9962 0 0 0 3.9629 0 0 0 1.0000 0 0 0 0 2067 0 0 7.2795 0 0 0 4.0758 0 0 0 1.0000 0 0 0 0 2068 0 0 7.5744 0 0 0 4.1920 0 0 0 1.0000 0 0 0 0 2069 0 0 7.8811 0 0 0 4.3115 0 0 0 1.0000 0 0 0 0 2070 0 0 8.2003 0 0 0 4.4343 0 0 0 1.0000 0 0 0 0 2071 0 0 8.5324 0 0 0 4.5607 0 0 0 1.0000 0 0 0 0 2072 0 0 8.8780 0 0 0 4.6907 0 0 0 1.0000 0 0 0 0 2073 0 0 9.2375 0 0 0 4.8244 0 0 0 1.0000 0 0 0 0 2074 0 0 9.6117 0 0 0 4.9619 0 0 0 1.0000 0 0 0 0 2075 0 0 10.0009 0 0 0 5.1033 0 0 0 1.0000 0 0 0 0 2076 0 0 10.4060 0 0 0 5.2487 0 0 0 1.0000 0 0 0 0 2077 0 0 10.8274 0 0 0 5.3983 0 0 0 1.0000 0 0 0 0 2078 388,879 388,879 11.2659 4,381,072 573,163 573,163 5.5522 3,182,313 0 0 1.0000 0 962,042 962,042 7,563,385

$31,632,537 $31,632,537 $84,697,234 $19,540,339 $19,540,339 $41,348,376 $0 $0 $0 $51,172,876 $51,172,876 $126,045,610

AMOUNT TO RECOVER LABOR NON-LABOR PIIC Payment Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Cost Jurisdictional Jurisdictional Total Cost Total Jurisdictional Total Jurisdictional Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Escalation Cost in Estimate Cost in Cost in Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Factor Future $'s Nominal $s Nominal $s Future $'s Prairie Island Unit 2 Factors 2017 100.0000% 4.05% 2.85% 0.00%

2034 $45,733 $45,733 1.9639 $89,815 $0 $0 1.6124 $0 $0 $0 1.0000 $0 $45,733 $45,733 $89,815 2035 340,602 340,602 2.0434 695,987 0 - 1.6584 - 0 - 1.0000 - 340,602 340,602 695,987 2036 1,956,513 1,956,513 2.1262 4,159,937 57,351 57,351 1.7056 97,817 0 - 1.0000 - 2,013,863 2,013,863 4,257,755 2037 2,463,904 2,463,904 2.2123 5,450,895 64,674 64,674 1.7542 113,451 0 - 1.0000 - 2,528,578 2,528,578 5,564,346 2038 1,261,871 1,261,871 2.3019 2,904,702 28,960 28,960 1.8042 52,250 0 - 1.0000 - 1,290,832 1,290,832 2,956,952 2039 0 - 2.3951 - 0 - 1.8556 - 0 - 1.0000 - 0 0 -

2040 0 - 2.4921 - 0 - 1.9085 - 0 - 1.0000 - 0 0 -

2041 8,961,247 8,961,247 2.5930 23,236,514 9,384,731 9,384,731 1.9629 18,421,288 0 - 1.0000 - 18,345,978 18,345,978 41,657,803 2042 13,743,089 13,743,089 2.6981 37,080,230 14,392,550 14,392,550 2.0189 29,057,118 0 - 1.0000 - 28,135,639 28,135,639 66,137,348 2043 6,438,543 6,438,543 2.8073 18,074,922 6,742,811 6,742,811 2.0764 14,000,773 0 - 1.0000 - 13,181,354 13,181,354 32,075,695 2044 0 - 2.9210 - 0 - 2.1356 - 0 - 1.0000 - 0 0 -

2045 0 - 3.0393 - 0 - 2.1964 - 0 - 1.0000 - 0 0 -

2046 0 - 3.1624 - 0 - 2.2590 - 0 - 1.0000 - 0 0 -

2047 0 - 3.2905 - 0 - 2.3234 - 0 - 1.0000 - 0 0 -

2048 0 - 3.4238 - 0 - 2.3896 - 0 - 1.0000 - 0 0 -

2049 0 - 3.5624 - 0 - 2.4577 - 0 - 1.0000 - 0 0 -

2050 0 - 3.7067 - 0 - 2.5278 - 0 - 1.0000 - 0 0 -

2051 0 - 3.8568 - 0 - 2.5998 - 0 - 1.0000 - 0 0 -

2052 0 - 4.0130 - 0 - 2.6739 - 0 - 1.0000 - 0 0 -

2053 0 - 4.1756 - 0 - 2.7501 - 0 - 1.0000 - 0 0 -

2054 0 - 4.3447 - 0 - 2.8285 - 0 - 1.0000 - 0 0 -

2055 0 - 4.5206 - 0 - 2.9091 - 0 - 1.0000 - 0 0 -

2056 0 - 4.7037 - 0 - 2.9920 - 0 - 1.0000 - 0 0 -

2057 0 - 4.8942 - 0 - 3.0773 - 0 - 1.0000 - 0 0 -

2058 0 - 5.0924 - 0 - 3.1650 - 0 - 1.0000 - 0 0 -

2059 0 - 5.2987 - 0 - 3.2552 - 0 - 1.0000 - 0 0 -

2060 0 - 5.5133 - 0 - 3.3480 - 0 - 1.0000 - 0 0 -

2061 0 - 5.7366 - 0 - 3.4434 - 0 - 1.0000 - 0 0 -

2062 0 - 5.9689 - 0 - 3.5415 - 0 - 1.0000 - 0 0 -

2063 0 - 6.2106 - 0 - 3.6425 - 0 - 1.0000 - 0 0 -

2064 0 - 6.4622 - 0 - 3.7463 - 0 - 1.0000 - 0 0 -

2065 0 - 6.7239 - 0 - 3.8531 - 0 - 1.0000 - 0 0 -

2066 0 - 6.9962 - 0 - 3.9629 - 0 - 1.0000 - 0 0 -

2067 0 - 7.2795 - 0 - 4.0758 - 0 - 1.0000 - 0 0 -

2068 0 - 7.5744 - 0 - 4.1920 - 0 - 1.0000 - 0 0 -

2069 0 - 7.8811 - 0 - 4.3115 - 0 - 1.0000 - 0 0 -

2070 0 - 8.2003 - 0 - 4.4343 - 0 - 1.0000 - 0 0 -

2071 0 - 8.5324 - 0 - 4.5607 - 0 - 1.0000 - 0 0 -

2072 0 - 8.8780 - 0 - 4.6907 - 0 - 1.0000 - 0 0 -

2073 0 - 9.2375 - 0 - 4.8244 - 0 - 1.0000 - 0 0 -

2074 0 - 9.6117 - 0 - 4.9619 - 0 - 1.0000 - 0 0 -

2075 0 - 10.0009 - 0 - 5.1033 - 0 - 1.0000 - 0 0 -

2076 0 - 10.4060 - 0 - 5.2487 - 0 - 1.0000 - 0 0 -

2077 0 - 10.8274 - 0 - 5.3983 - 0 - 1.0000 - 0 0 -

2078 388,879 388,879 11.2659 4,381,072 573,163 573,163 5.5522 3,182,313 0 - 1.0000 - 962,042 962,042 7,563,385

$35,600,382 $35,600,382 $96,074,074 $31,244,239 $31,244,239 $64,925,010 $0 $0 $0 $66,844,621 $66,844,621 $160,999,084

$114,030,337 $114,030,337 $304,796,147 $75,311,094 $75,311,094 $161,189,169 $0 $0 $0 $189,341,431 $189,341,431 $465,985,316

ENCLOSURE 8 ANNUAL ACCRUAL

SUMMARY

- ITEMIZED TRUST FUND BALANCES 4 Pages Follow

NSP-Minnesota NRC Biennial Trust Funding Status Report Trust Fund Balance - By Components December 31, 2017 Balances as of January 01, 2018 External Qualified Book Value Market Adjustment Market Value Monti PI1 PI2 Monti PI1 PI2 Monti PI1 PI2 Radiological 378,669,503 347,141,319 325,712,935 120,587,213 130,309,391 119,515,792 499,256,716 477,450,711 445,228,727 Spent Fuel 302,483,051 54,088,123 114,116,923 96,325,656 20,303,519 41,873,604 398,808,706 74,391,642 155,990,526 Site Restoration 35,405,979 8,982,754 24,228,870 11,275,026 3,371,933 8,890,444 46,681,005 12,354,687 33,119,314 Total 716,558,532 410,212,196 464,058,728 228,187,895 153,984,843 170,279,839 944,746,427 564,197,039 634,338,566 Totals may not foot due to rounding.

NSP-Minnesota NRC Biennial Trust Funding Status Report Trust Fund Balances - By Jurisdiction December 31, 2017 Balances as of January 01, 2018 External Qualified Book Value Market Adjust Market Value Monti PI1 PI2 Monti PI1 PI2 Monti PI1 PI2 MN Retail 528,235,230 302,500,490 342,906,311 168,614,668 113,662,824 125,949,623 696,849,897 416,163,314 468,855,935 ND Retail 35,062,616 22,805,577 24,534,512 11,956,032 8,458,419 9,338,986 47,018,648 31,263,996 33,873,499 SD Retail 22,756,363 17,014,887 18,976,893 7,805,848 6,420,136 7,297,136 30,562,211 23,435,023 26,274,028 MN FERC 9,617,440 7,420,284 7,016,791 3,722,494 3,070,325 2,597,462 13,339,934 10,490,609 9,614,254 WI FERC 10,206,295 5,989,707 5,656,568 3,155,446 476,973 1,939,051 13,361,741 6,466,681 7,595,619 WI Retail 110,680,588 54,481,251 64,967,652 32,933,408 21,896,166 23,157,580 143,613,996 76,377,417 88,125,232 Total 716,558,532 410,212,196 464,058,728 228,187,895 153,984,843 170,279,839 944,746,427 564,197,040 634,338,567 Totals may not foot due to rounding.

NSP-Minnesota NRC Biennial Trust Funding Status Report Trust Fund Balance - By Components December 31, 2018 Balances as of January 01, 2019 External Qualified Book Value Market Adjustment Market Value Monti PI1 PI2 Monti PI1 PI2 Monti PI1 PI2 Radiological 406,139,614 388,699,389 365,060,139 90,312,724 103,916,655 95,941,983 496,452,338 492,616,045 461,002,122 Spent Fuel 303,801,873 30,625,197 94,422,452 67,556,017 8,187,479 24,815,301 371,357,890 38,812,676 119,237,754 Site Restoration 35,560,349 5,086,119 20,047,415 7,907,507 1,359,746 5,268,690 43,467,856 6,445,865 25,316,105 Total 745,501,835 424,410,705 479,530,006 165,776,248 113,463,880 126,025,974 911,278,084 537,874,585 605,555,981 Totals may not foot due to rounding.

NSP-Minnesota NRC Biennial Trust Funding Status Report Trust Fund Balances - By Jurisdiction December 31, 2018 Balances as of January 01, 2019 External Qualified Book Value Market Adjust Market Value Monti PI1 PI2 Monti PI1 PI2 Monti PI1 PI2 MN Retail 549,440,454 312,661,446 353,792,263 122,587,181 83,790,898 93,269,721 672,027,635 396,452,344 447,061,985 ND Retail 35,864,045 23,565,180 25,278,102 8,884,048 6,214,515 6,980,242 44,748,093 29,779,696 32,258,345 SD Retail 23,917,254 17,729,361 19,828,626 5,774,851 4,730,160 5,452,921 29,692,105 22,459,521 25,281,547 MN FERC 9,766,084 7,675,168 7,227,843 2,855,131 2,317,385 1,927,984 12,621,216 9,992,553 9,155,827 WI FERC 10,355,182 6,146,825 5,823,307 2,286,665 12,842 1,410,139 12,641,847 6,159,666 7,233,446 WI Retail 116,158,816 56,632,725 67,579,864 23,388,373 16,398,080 16,984,966 139,547,189 73,030,805 84,564,831 Total 745,501,835 424,410,705 479,530,006 165,776,248 113,463,880 126,025,974 911,278,084 537,874,585 605,555,981 Totals may not foot due to rounding.

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