View source for L-PI-10-038, Prairie Lsland, Supplement to Lrradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimates

{{Adams
| number = ML101170144
| issue date = 04/26/2010
| title = Prairie Lsland, Supplement to Lrradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimates
| author name = Schimmel M
| author affiliation = Northern States Power Co, Xcel Energy
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000306
| license number = DPR-060
| contact person = 
| case reference number = L-PI-10-038, TAC ME2480, TAC ME2481
| document type = Letter type:L
| page count = 15
| project = TAC:ME2480, TAC:ME2481
| stage = Supplement
}}

=Text=
{{#Wiki_filter:L-PI-10-038 10 CFR 50.54 10 CFR 50.75 U S Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Prairie lsland Nuclear Generating Plant, Unit 2 Docket 50-306 License No. DPR-60 Supplement to lrradiated Fuel Management Plan and Preliminaw Decommissioning Cost Estimates for Prairie lsland Nuclear Generating Plant (PINGP) (TAC Nos. ME2480 and ME24811 

==References:==
: 1. Northern States Power Company, a Minnesota corporation (NSPM), letter to the NRC, "lrradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimates for Prairie lsland Nuclear Generating Plant (PINGP)", dated October 28, 2009, Accession Number M L093020064. 2. NRC letter to NSPM, "Prairie lsland Nuclear Generating Plant, Unit 2 - Request for Additional Information Related to Review of lrradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimate (TAC Nos. ME2480 and ME2481)", dated March 26,2010, Accession Number ML100830719. In Reference 1, NSPM, doing business as Xcel Energy, submitted the PINGP lrradiated Fuel Management Plan for NRC review and preliminary approval and the PINGP Preliminary Decommissioning Cost Estimate for NRC review and approval. To support the review of Reference 1, the NRC Staff requested additional information in Reference 2 which is provided in the Enclosure to this letter. If there are any questions or if additional information is needed, please contact Mr. Dale Vincent, P.E., at 651-388-1 121.
171 7 Wakonade Drive East . Welch, Minnesota 55089-9642 Telephone:
651.388.1 121 Document Control Desk Page 2 Summarv of Commitments This letter contains no new commitments and no revisions to existing commitments.
ark A. Schimmel Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Enclosures (1) cc: Administrator, Region Ill, USNRC Project Manager, PINGP, USNRC Resident Inspector, PINGP, USNRC ENCLOSURE PRAIRIE ISLAND NUCLEAR GENERATING PLANT UNIT 2 DOCKET NO.
50-306 RESPONSES TO REQUEST FOR ADDITIONAL INFORMATION (RAI)
Page 1 of 13 Enclosure By letter to the U.S. Nuclear Regulatory Commission (NRC) dated October 28, 2009 (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML093020064), Northern States Power Company, a Minnesota corporation (NSPM), doing business as Xcel Energy, submitted a request for review and approval of the Irradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimate for the Prairie Island Nuclear Generating Plant (PINGP), Unit
: 2. Following are NRC requests for additional information on Enclosure 1 of the NSPM letter dated October 28,2009 (shown as bold) and the NSPM responses. (Note: Numbers may not add due to rounding).
RAI No.1: Nuclear Regulatory Commission (NRC) Minimum and Funding Status PINGP Unit 2 reported a trust fund balance of $357.8 million as of July 2009. What is the radiological decommissioning trust fund (DTF) balance as of December 31,2009? What is the impact of the December 31,2009 DTF balance on the October 28,2009 submittal?
NSPM Response: NSPM letter to the NRC, "Decommissioning Funding Status Reports", dated March 31, 201 0, (ADAMS Accession No. MLI 0091 01 35) stated a radiological decommissioning trust fund balance of $385 million as of December 31, 2009. This demonstrated an increase of approximately $27 million over the radiological balance reported in the October 28, 2009 submittal.
RAI No.2: Sufficiency of Funds Analysis In its submittal, PINGP stated that the Minnesota Public Utilities Commission approved a 2.89 percent cost escalation rate and a 6.30 percent earnings rate on external funds resulting in a 3.41 percent real rate of return. Xcel submitted, for PINGP on March 31, 2009, the Decommissioning Funding Status Report (L-XE-09-05) that used an earnings rate of 5.4 percent, an escalation factor of 3.61 percent and a real rate of return of 1.79 percent with projected annual continuations of $12.65 million for approximately 6 years. Provide the documentation that supports the higher rate of return, as well as the period for which the 3.41 percent real rate of return applies. NSPM Response: Xcel Energy files a triennial decommissioning study with the Minnesota Public Utilities Commission (MPUC) for approval.
A portion of the study is dedicated to Page 2 of 13 Enclosure an internal analysis of inflation factors surrounding the various components necessary to perform the decommissioning function.
The analysis utilizes long- range inflation projections published by Global Insight, the Consumer Price Index, and the Chained Price Index for Gross Domestic Product, as well as other forecasted data. The rate of earnings and escalation factors were approved by the MPUC in the most recent triennial decommissioning study completed by Xcel Energy, MPUC Docket# E-002lM-08-1201, effective June 12, 2009. The MPUC approval assumes that the 3.41% is a levelized rate of return over the remaining plant operating life along with the entire decommissioning period. This rate will be reviewed again in the next Xcel Energy triennial decommissioning filing with the MPUC, which is required to be filed by October 201 1.
RAI No.3: Sufficiency of Funds Analysis If there are changes in the DTF balance that materially impact the licensee's cost analysis, given these considerations, the licensee would be under an obligation under 10 CFR 50.9 to update any changes in projected cost or available funds. Has PINGP examined the impact of the change in the real rate of return and the deletion of the annual contributions on the projected DTF balance identified in their submittal dated March 31, 2009, and the PINGP Unit 1 submittal dated August 8, 2008? NSPM Response: The following tables provide a breakdown of the annual decommissioning costs, total expenditures, and total contributions for radiological, ISFSl (spent fuel management) and site restoration (Greenfield) for each Unit 2 cost area, and Unit 2 cost areas combined. This analysis assumes the current rate of return approved by the MPUC in 2009. In this analysis, the annuity (contributions) for 2010 and 201 1 are collected exclusively from ratepayers in the North Dakota jurisdiction.
For the years 2012, 2013 and 2014 the annuity (contributions) will again come from ratepayers in all jurisdictions. The beginning balances shown are the external fund balances, including both the qualified fund and the escrow fund, as of December 31, 2009. Decommissioning payment values are shown in 2009 dollars, inflated one year from the original decommissioning cost study values, using an assumed rate of inflation of 2.89%. Assumed interest was calculated using an assumed real rate of return of 3.41 %. The effect of inflating the radiological decommissioning payments (expenditures) one year forward into 2009 dollars is an increase of approximately 
$1 5.5 million over the total radiological expenses shown in 2008 dollars in the NSPM letter to the NRC "Supplement to Irradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimates for Prairie Island Nuclear Generating Plant (PINGP) (TAC Nos.
MD9492, MD9493, MD9494 and MD9495)", dated Enclosure January 19, 2009 (ADAMS Accession No.
ML090210156). The 2008 estimate also assumed a 5.40% Rate of Return and a 3.61 
% Escalation Factor with a Real Rate of Return of 1.79%. The effect of the changes in these assumptions, along with the corresponding changes in contributions (annuities) from customers, results in an increase in the estimated balance remaining in the fund for radiological decommissioning at the conclusion of decommissioning activities of 
$10.5 million. Under expected conditions the current fund balances for PlNGP Unit 2 are sufficient to cover all estimated decommissioning payments.
Radioloaical:
PlNGP Unit 2 Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2010 383,932,350 383,932,350 201 1 397,024,443 397,024,443 2012 410,562,977 10,415,560 420,978,537 2013 435,333,905 - 10,415,560 445,749,465 2014 460,949,521 9,656,227 8,332,448 459,625,743 201 5 475,298,981 59,694,720 41 5,604,261 201 6 429,776,366 102,934,243 326,842,123 201 7 337,987,440 95,539,538 242,447,901 2018 250,715,375 71,079,499 179,635,876 2019 185,761,459 44,796,248 140,965,211 2020 145,772,125 10,001,937 135,770,188 2021 140,399,951 9,974,157 1 30,425,795 2022 134,873,314 9,974,157 124,899,158 2023 129,158,219 9,974,157 119,184,062 2024 123,248,239 10,001,937 11 3,246,302 2025 117,108,001 9,974,157 107,133,844 2026 110,787,108 9,974,157 100,812,952 2027 104,250,673 9,974,157 94,276,517 2028 97,491,346 10,001,937 87,489,409 2029 90,472,798 16,752,550 73,720,248 2030 76,234,109 42,577,940 33,656,169 2031 34,803,844 9,773,521 25,030,323 2032 25,883,857 37,040 25,846,817 2033 26,728,193 21,607 26,706,586 2034 27,617,281 27,617,281 2035 28,559,030 28,559,030 2036 29,532,893 29,532,893 2037 30,539,965 30,539,965 2038 31,581,378 31,581,378 2039 32,658,303 32,658,303 2040 33,771,951 33,771,951 2041 34,923,574 34,923,574 2042 36,114,468 36,114,468 Assumed lnterest 13,092,093 13,538,534 

14,355,368 15,200,057 15,673,238 14,172,105 11,145,316 8,267,473 6,125,583 4,806,914 4,629,763 4,447,520 4,259,061 

4,064,177 3,861,699 3,653,264 3,437,722 3,214,829 2,983,389 2/57 3,860 1,147,675 853,534 881,376 91 0,695 941,749 973,863 1,007,072 1,041,413 1,076,925 1 ,I 13,648 1,151,624 1 ,I 90,894 1,231,503 Ending Balance 397,024,443 410,562,977 435,333,905 460,949,521 475,298,981 429,776,366 337,987,440 250,715,375 185,761,459 145,772,125 140,399,951 134,873,314 129,158,219 123,248,239 117,108,001 110,787,108 104,250,673 97,491,346 90,472,798 76,234,109 34,803,844 25,883,857 26,728,193 27,617,281 

28,559,030 29,532,893 30,539,965 31,581,378 

32,658,303 33,771,951 34,923,574 36,114,468 37,345,971 Page 4 of 13 Enclosure Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2043 37,345,971 37,345,971 2044 38,619,469 38,619,469 2045 39,936,393 39,936,393 2046 41,298,224 41,298,224 2047 42,706,493 42,706,493 2048 44,162,785 44,162,785 2049 45,668,736 45,668,736 2050 47,226,040 47,226,040 2051 48,836,448 48,836,448 2052 50,501,770 50,501,770 2053 52,223,881 10,817,855 41,406,026 Total Unit 2 Radiological expenditures 
$553,531,738 Spent Fuel Management:
PlNGP Unit 2 Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 201 0 29,861,404 394,046 30,255,450 201 1 31,287,161 394,046 31,681,207 201 2 32,761,536 394,046 33,155,582 2013 34,286,187 394,046 34,680,233 2014 35,862,829 2,106,158 394,046 34,150,717 201 5 35,315,256 12,453,806 16,874,250 39,735,701 2016 41,090,688 14,082,554 16,874,250 43,882,384 201 7 45,378,773 11,258,224 16,874,250 50,994,799 201 8 52,733,722 7,679,710 16,874,250 61,928,262 201 9 64,040,016 7,190,982 16,874,250 73,723,284 2020 76,237,248 6,560,266 16,874,250 86,551,232 202 1 89,502,629 6,541,746 16,874,250 99,835,133 2022 103,239,511 6,541,746 16,874,250 11 3,572,014 2023 11 7,444,820 6,541,746 16,874,250 127,777,324 2024 132,134,531 6,560,266 14,159,571 139,733,835 2025 144,498,759 6,541,746 137,957,013 2026 142,661,347 6,541,746 136,119,601 2027 140,761,279 6,541,746 134,219,533 2028 138,796,419 6,560,266 132,236,153 2029 136,745,406 5,491,239 131,254,166 2030 135,729,933 504,161 135,225,772 2031 139,836,971 4,151,612 135,685,360 2032 140,312,231 5,542,684 134,769,546 2033 139,365,188 4,648,570 134,716,618 2034 139,310,454 3,418,006 135,892,448 2035 140,526,381 3,418,006 137,108,375 2036 141,783,771 3,427,266 138,356,505 2037 143,074,462 3,418,006 139,656,456 Assumed lnterest 1,273,498 1,316,924 1,361,831 1,408,269 1,456,291 1,505,951 1,557,304 1,610,408 1,665,323 1,722,110 1,411,945 Assumed lnterest 1,031,711 1,080,329 1 ,130,605 1,182,596 1,164,539 1,354,987 1,496,389 1 ,738,923 2,111,754 2,513,964 2,951,397 3,404,378 3,872,806 4,357,207 4,764,924 4,704,334 4,641,678 4,576,886 4,509,253 4,475,767 4,611,199 4,626,871 4,595,642 4,593,837 4,633,932 4,675,396 4,717,957 4,762,285 Ending Balance 38,619,469 39,936,393 41,298,224 42,706,493 44,162,785 45,668,736 47,226,040 48,836,448 50,501,770 52,223,881 42,817,972 Ending Balance 31,287,161 32,761,536 34,286,187 35,862,829 35,315,256 41,090,688 45,378,773 52,733,722 64,040,016 76,237,248 89,502,629 103,239,511 11 7,444,820 132,134,531 144,498,759 142,661,347 

140,761,279 138,796,419 136,745,406 135,729,933 139,836,971 140,312,231 139,365,188 139,310,454 140,526,381 141,783,771 143,074,462 144,418,741 Page 5 of 13 Enclosure Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2038 144,418,741 3,418,006 141,000,735 2039 145,808,860 3,418,006 142,390,854 2040 147,246,383 3,427,266 143,819,117 2041 148,723,349 3,418,006 145,305,343 2042 150,260,255 3,418,006 146,842,249 2043 151,849,570 3,418,006 148,431,564 2044 153,493,080 3,427,266 150,065,815 2045 155,183,059 3,418,006 151,765,053 2046 156,940,241 3,418,006 153,522,235 2047 158,757,344 3,418,006 155,339,338 2048 160,636,409 3,427,266 157,209,143 2049 162,569,975 3,418,006 159,151,969 2050 164,579,052 3,418,006 161,161,046 2051 166,656,637 3,418,006 163,238,632 2052 168,805,069 3,427,266 165,377,803 2053 171,017,186 3,451,960 167,565,227 2054 173,279,201 7,380,300 165,898,901 Assumed lnterest 4,808,125 4,855,528 4,904,232 4,954,912 5,007,321 5,061,516 5,117,244 5,175,188 5,235,108 5,297,071 5,360,832 5,427,082 5,495,592 5,566,437 5,639,383 5,713,974 5,657,153 Total Unit 2 Spent Fuel Management expenditures 
$209,861,646 Site Restoration:
PlNGP Unit 2 Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2010 12,797,746 184,582 12,982,328 201 1 13,425,025 184,582 13,609,607 201 2 14,073,695 184,582 14,258,277 2013 14,744,484 184,582 14,929,066 201 4 15,438,147 43,214 1,972,830 17,367,763 201 5 17,960,004 324,104 1,972,830 19,608,731 2016 20,277,388 1,507,339 1,972,830 20,742,880 2017 21,450,212 1,634,922 1,972,830 21,788,120 2018 22,531,094 1,256,287 1,972,830 23,247,637 201 9 24,040,382 716,114 1,972,830 25,297,097 2020 26,159,728 1,972,830 28,132,558 2021 29,091,878 1,972,830 31,064,708 2022 32,124,015 1,972,830 34,096,845 2023 35,259,547 1,972,830 37,232,377 2024 38,502,001 1,972,830 40,474,831 2025 41,855,022 1,972,830 43,827,852 2026 45,322,382 1,972,830 47,295,212 2027 48,907,979 1,578,264 50,486,242 2028 52,207,823 52,207,823 2029 53,988,110 53,988,110 2030 55,829,105 55,829,105 2031 57,732,877 15,100,136 42,632,741 Assumed lnterest 442,697 464,088 486,207 509,081 592,241 668,658 707,332 742,975 792,744 862,631 959,320 1,059,307 1,162,702 1,269,624 1,380,192 1,494,530 1,612,767 1,721,581 1,780,287 1,840,995 1,903,772 1,453,776 Ending Balance 145,808,860 147,246,383 148,723,349 150,260,255 

151,849,570 153,493,080 155,183,059 156,940,241 158,757,344 160,636,409 162,569,975 164,579,052 166,656,637 168,805,069 171,017,186 173,279,201 171,556,054 Ending Balance 13,425,025 14,073,695 14,744,484 15,438,147 17,960,004 20,277,388 21,450,212 22,531,094 24,040,382 26,159,728 29,091,878 32,124,015 35,259,547 38,502,001 41,855,022 

45,322,382 48,907,979 52,207,823 53,988,110 55,829,105 57,732,877 44,08631 7 Page 6 of 13 Enclosure Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2032 44,086,517 20,776,578 23,309,940 2033 24,104,808 12,091,633 12,013,176 2034 12,422,825 12,422,825 2035 1 2,846,443 12,846,443 2036 13,284,507 13,284,507 2037 13,737,509 13,737,509 2038 14,205,958 14,205,958 2039 14,690,381 14,690,381 2040 15,191,323 15,191,323 2041 15,709,347 15,709,347 2042 16,245,036 16,245,036 2043 16,798,991 16,798,991 2044 17,371,837 17,371,837 2045 17,964,217 17,964,217 2046 18,576,796 18,576,796 2047 19,210,265 19,210,265 2048 19,865,335 19,865,335 2049 20,542,743 20,542,743 2050 21,243,251 21,243,251 2051 21,967,646 21,967,646 2052 22,716,742 22,716,742 2053 23,491,383 23,491,383 2054 24,292,439 24,292,439 Total Unit 2 Site Restoration expenditures 
$53,450,326 Total PINGP Unit 2 Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 201 0 426,591,500 578,628 427,170,128 201 1 441,736,629 578,628 442,315,257 201 2 457,398,208 10,994,188 468,392,396 2013 484,364,576 10,994,188 495,358,764 2014 512,250,498 11,805,599 10,699,324 51 1,144,223 2015 528,574,241 72,472,629 18,847,080 474,948,692 2016 491,144,442 118,524,136 18,847,080 391,467,387 201 7 404,816,425 108,432,684 18,847,080 315,230,820 2018 325,980,191 80,015,495 18,847,080 264,811,776 201 9 273,841,857 52,703,345 18,847,080 239,985,592 2020 248,169,101 16,562,203 18,847,080 250,453,978 2021 258,994,458 16,515,903 18,847,080 261,325,635 2022 270,236,840 16,515,903 18,847,080 272,568,017 2023 281,862,586 16,515,903 18,847,080 284,193,763 2024 293,884,770 16,562,203 16,132,401 293,454,968 2025 303,461,783 16,515,903 1,972,830 288,918,710 Assumed lnterest 794,869 409,649 423,618 438,064 453,002 468,449 484,423 500,942 518,024 535,689 553,956 572,846 592,380 612,580 633,469 655,070 677,408 700,508 724,395 749,097 774,641 801,056 828.372 Assumed lnterest 14,566,501 15,082,950 15,972,181 16,891,734 17,430,018 16,195,750 

13,349,038 10,749,371 9,030,082 8,183,509 8,540,481 8,911,204 9,294,569 9,691,007 10,006,814 9,852,128 Ending Balance 24,104,808 12,422,825 1 2,846,443 13,284,507 13,737,509 14,205,958 14,690,381 15,191,323 15,709,347 16,245,036 16,798,991 17,371,837 17,964,217 

18,576,796 19,210,265 19,865,335 20,542,743 21,243,251 

21,967,646 22,716,742 23,491,383 24,292,439 25,120,812 Ending Balance 441,736,629 457,398,208 484,364,576 512,250,498 528,574,241 491,144,442 404,816,425 325,980,191 273,841,857 248,169,101 258,994,458 270,236,840 281,862,586 293,884,770 303,461,783 298,770,838 Page 7 of 13 Enclosure Beginning Payment Annuity Balance Year Fund Balance (Expenditures) (Contributions) Before lnterest 2026 298,770,838 16,515,903 1,972,830 284,227,765 2027 293,919,931 16,515,903 1,578,264 278,982,292 2028 288,495,589 16,562,203 271,933,385 2029 281,206,314 22,243,789 258,962,525 2030 267,793,147 43,082,101 224,711,046 2031 232,373,693 29,025,269 203,348,424 2032 210,282,605 26,356,302 183,926,303 2033 190,198,189 16,761,810 173,436,380 2034 179,350,560 3,418,006 175,932,554 2035 181,931,854 3,418,006 178,513,849 2036 184,601,171 3,427,266 181 ,I 73,905 2037 187,351,935 3,418,006 183,933,929 2038 190,206,076 3,418,006 186,788,070 2039 193,157,544 3,418,006 189,739,538 2040 196,209,656 3,427,266 192,782,390 2041 199,356,270 3,418,006 195,938,264 2042 202,619,759 3,418,006 199,201,753 2043 205,994,533 3,418,006 202,576,527 2044 209,484,386 3,427,266 206,057,121 2045 213,083,668 3,418,006 209,665,663 2046 216,815,262 3,418,006 213,397,256 2047 220,674,102 3,418,006 21 7,256,096 2048 224,664,529 3,427,266 221,237,263 2049 228,781,454 3,418,006 225,363,448 2050 233,048,342 3,418,006 229,630,336 2051 237,460,731 3,418,006 234,042,725 2052 242,023,582 3,427,266 238,596,316 2053 246,732,450 14,269,814 232,462,636 2054 240,389,612 7,380,300 233,009,312 Assumed Interest 9,692,167 9,513,296 9,272,928 8,830,622 7,662,647 6,934,181 6,271,887 5,914,181 5,999,300 6,087,322 6,178,030 6,272,147 6,369,473 

6,470,118 6,573,880 6,681,495 6,792,780 6,907,860 7,026,548 7,149,599 7,276,846 7,408,433 

7,544,191 7,684,894 7,830,394 7,980,857 8,136,134 7,926,976 7,945,618 Ending Balance 293,919,931 288,495,589 281,206,314 267,793,147 232,373,693 21 0,282,605 190,198,189 179,350,560 181,931,854 184,601 ,I 71 187,351,935 190,206,076 193,157,544 196,209,656 199,356,270 202,619,759 205,994,533 209,484,386 21 3,083,668 216,815,262 220,674,102 224,664,529 228,781,454 233,048,342 237,460,731 242,023,582 246,732,450 

240,389,612 240,954,930 Total Unit 2 expenditures 
$816,843,710 RAI No.4: Table 3 Funds Analysis The Table did not identify the source of the annuity of $10.4 million in 2012, $10.4 million in 2013, and $8.3 million in 2014 contributions.
Please identify the source of this annuity. NSPM Response: Annuity contributions in 2012 through 2014 will be collected through rates from customers from the various jurisdictions. Page 8 of 13 Enclosure RAI No.5: Table 3 Funds Analysis Table 3 does not addresslbreakout the expenses identified in the table. Are the paymentslexpenses for both radiological decommissioning and spent fuel storage costs or for radiological decommissioning costs only?
The cost associated with spent fuel storage needs to be included in PINGP's analysis for Unit 2. For Unit I, PlNGP estimated that fuel transfer would begin in 2028, with completion of the fuel transfer to the DOE in 2053, and estimated the annual cost associated with dry storage for the period from 2031 to 2053 at $3.3 million. For Unit 2, PINGP's August 8, 2008, submittal estimated an annual cost of $3.3 million for the period from 2014 to 2053; however, these costs were not included in the analysis.
NSPM Response: Table 3 in the August 8, 2008 submittal provided a breakout of expenses for the various periods involving radiological decommissioning (NRC license termination costs), irradiated fuel management costs, and site restoration costs for each unit.
The tables included in RAI No. 3, above, provide annual cash flows for radiological decommissioning, irradiated fuel management and site restoration costs for Unit 2. In the August 8, 2008 submittal, the 
$3.3 million should apply to each year from 2034 to 2053 for Unit 2. The costs associated with irradiated fuel management for years 2014 to 2034 can be calculated as being one half of the cost identified in the IFM [Irradiated Fuel Management] column of Table 1 of the August 2008 report. RAI No.6: Table 3 Funds Analysis The paymentslexpenditures identified in Table 3 appear to be in 2008 dollars. The expenses are identical to the expenses listed in PINGP's submittal dated January 19, 2009, Table 3.2a, while the trust fund balance is in 2009 dollars. Please update the estimated expenditures to 2009 dollars, and identify the escalation factor and its supporting basis. NSPM Response: The following tables show the estimated decommissioning costs for radiological, spent fuel management, and site restoration activities updated to 2009 dollars using the assumed rate of inflation approved by the MPUC in the 2008 triennial nuclear decommissioning filing. These costs tie to the payments shown in the tables in response RAI No. 3. The escalation factor assumed for this purpose is 2.89%. Page 9 of 13 Enclosure Radiological:
PlNGP Unit 2 Year 2014 201 5 2016 201 7 201 8 201 9 2020 202 1 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 204 1 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 Totals Labor 7,193,040 42,404,056 53,288,789 53,854,684 51,962,537 32,891,875 7,645,756 7,624,149 7,624,149 7,624,149 7,645,756 7,624,149 7,624,149 7,624,149 7,645,756 12,475,413 28,772,160 5,894,568 37,040 21,607 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Equipment 
& Materials 263,398 3,105,220 19,208,534 16,372,886 6,655,954 3,839,855 109,063 109,063 109,063 109,063 109,063 109,063 109,063 109,063 109,063 934,241 3,072,295 31 2,786 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 226,358 54,973,098 Energy 530,912 3,555,878 3,926,282 2,621,637 2,268,725 1,552,610 607,051 604,993 604,993 604,993 607,051 604,993 604,993 604,993 607,051 710,970 921,894 163,595 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Burial 8,231 1,409,593 19,688,002 17,715,600 6,944,046 3,962,294 11,318 11,318 11,318 11,318 11,318 11,318 11,318 11,318 11,318 768,588 2,287,245 11,318 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 52,896,778 Other 1,660,645 9,219,973 6,822,636 4,974,732 3,248,237 2,549,614 1,628,749 1,624,633 1,624,633 1,624,633 

1,628,749 1,624,633 1,624,633 1,624,633 1,628,749 1,863,338 7,524,346 

3,391,254 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10,591,497 66,480,316 Yearly Totals 9,656,227 59,694,720 102,934,243 95,539,538 71,079,499 44,796,248 10,001,937 9,974,157 9,974,157 9,974,157 10,001,937 9,974,157 9,974,157 9,974,157 10,001,937 16,752,550 42,577,940 9,773,521 37,040 21,607 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 10,817,855 553,531,738 Page 10 of 13 Enclosure Spent Fuel Management:
PlNGP Unit 2 Year 2014 201 5 2015 201 9 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 Totals Labor 491,814 2,912,816 3,352,156 2,662,793 1,768,679 1,646,240 1,487,789 1,483,674 1,483,674 1,483,674 

1,487,789 1,483,674 1,483,674 1,483,674 1,487,789 1,240,853 85,399 3,290,422 4,500,409 3,630,988 2,431,291 

2,431,291 2,438,493 2,431,291 2,431,291 

2,431,291 2,438,493 2,431,291 2,431,291 2,431,291 2,438,493 2,431,291 2,431,291 2,431,291 2,438,493 2,431,291 2,431,291 2,431,291 2,438,493 2,423,060 542,230 88,143,805 Equipment 
& Materials 1,473,385 8,737,419 10,058,526 7,989,409 5,305,008 4,938,720 4,465,426 4,452,050 

4,452,050 4,452,050 4,465,426 4,452,050 4,452,050 4,452,050 4,465,426 3,722,560 254,138 169,769 152,277 129,641 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 95,688 1,100,923 86,112,757 Energy 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 65,850 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 91,572 150,219 2,209,048 Burial 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 34,983 4,172,190 4,207,172 Other 140,959 803,571 671,872 606,022 606,022 606,022 607,051 606,022 606,022 606,022 607,051 606,022 606,022 606,022 607,051 527,826 164,624 625,571 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 806,658 1,414,738 29,188,864 Yearly Totals 2,106,158 12,453,806 14,082,554 1 1,258,224 7,679,710 7,190,982 6,560,266 6,541,746 6,541,746 6,541,746 6,560,266 6,541,746 6,541,746 6,541,746 6,560,266 5,491,239 504,161 4,151,612 5,542,684 4,648,570 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,451,960 7,380,300 209,861,646 Page 11 of 13 Enclosure Site Restoration:
PlNGP Unit 2 Year 2014 201 5 2016 201 7 201 8 207 9 2020 202 1 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 'otals Labor 43,214 324,104 1,351,975 1,493,963 1,241,882 707,883 0 0 0 0 0 0 0 0
0 0 0 10,641,913 14,643,305 8,522,379 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Equipment 
& Materials 0 0 22,636 25,723 14,405 8,231 0 0 0 0 0 0 0 0 0 0 0 4,301,831 5,919,262 3,444,757 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13,736,844 Energy 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 154,335 21 1,953 123,468 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Burial 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Other 0 0 132,728 1 15,237 0 0 0 0 0 0 0 0 0 0 0 0 0 2,058 2,058 1,029 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Yearly Totals 43,214 324,104 1,507,339 1,634,922 1,256,287 716,114 0 0 0 0 0 0 0 0 0 0 0 15,100,136 20,776,578 12,091,633 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Page 12 of 13 Enclosure All Costs Combined:
PlNGP Unit 2 Year 2014 201 5 201 6 201 7 201 8 201 9 2020 202 1 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 -rotals Labor 7,728,068 45,640,975 57,992,920 58,011,440 54,973,098 35,245,998 9,133,545 9,107,823 

9,107,823 

9,107,823 9,133,545 9,107,823 9,107,823 9,107,823 9,133,545 13,716,266 28,857,558 19,826,903 19,180,754 12,174,974 2,431,291 2,431,291 2,438,493 2,431,291 2,431,291 

2,431,291 2,438,493 

2,431,291 2,431,291 2,431,291 2,438,493 2,431,291 2,431,291 

2,431,291 2,438,493 2,431,291 2,431,291 2,431,291 2,438,493 2,423,060 542,230 484,592,351 Equipment 
& Materials 1,736,783 1 1,842,639 29,289,696 24,388,017 11,975,367 8,786,806 4,574,489 4,561 ,I 14 4,561 ,I 14 4,561 ,I 14 4,574,489 4,561 ,I 14 4,561 ,I 14 4,561 ,I 14 4,574,489 4,656,801 3,326,434 4,784,385 6,071,539 3,574,399 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 98,774 322,046 1,100,923 154,822,699 Energy 530,912 3,555,878 3,926,282 2,621,637 2,268,725 1,552,610 607,051 604,993 604,993 604,993 607,051 604,993 604,993 604,993 607,051 710,970 921,894 383,780 302,497 214,011 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 90,543 91,572 150,219 24,402,421 Burial 8,231 1,409,593 19,688,002 17,715,600 6,944,046 3,962,294 11,318 11,318 11,318 11,318 11,318 11,318 11,318 11,318 11,318 768,588 2,287,245 11,318 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 34,983 4,172,190 57,103,950 Other 1,801,604 10,023,544 7,627,236 5,695,990 3,854,259 3,155,636 2,235,800 2,230,655 2,230,655 2,230,655 2,235,800 2,230,655 

2,230,655 2,230,655 2,235,800 

2,391,164 7,688,970 4,018,883 801,513 798,426 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 797,398 797,398 797,398 799,455 11,398,154 1,414,738 95,922,289 Yearly Totals 11,805,599 72,472,629 118,524,136 108,432,684 80,015,495 52,703,345 16,562,203 16,515,903 16,515,903 

16,515,903 

16,562,203 16,515,903 16,515,903 16,515,903 16,562,203 22,243,789 43,082,101 29,025,269 26,356,302 16,761,810 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 3,427,266 3,418,006 3,418,006 3,418,006 

3,427,266 

3,418,006 3,418,006 3,418,006 3,427,266 14,269,814 7,380,300 816,843,710 Page 13 of 13}}