HBL-17-006, Decommissioning Funding Report

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Decommissioning Funding Report
ML17102A987
Person / Time
Site: Humboldt Bay
Issue date: 03/31/2017
From: Halpin E
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
HBL-17-006
Download: ML17102A987 (23)


Text

L___

Pacific Gas and Electric Company¢>

March 31, 2017 PG&E Letter HBL-17-006 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk

  • Washington, DC 20555-0001 Docket No. 50-133, DPR-7 Humboldt Bay Power Plant, Unit 3 Edward D. Halpin Senior Vice President Generation and Chief Nuclear Officer Diablo Canyon Power Plant P.O. Box 56 Avila Beach, CA 9342-:1 805.545.4100 E*Mail: E1HB@pge.com 10 CFR 50. 75(f) 10 CFR 50.82(a)(8)(v) 10 CFR 50.82(a)(8)(vii)

Decommissioning Funding Report for Humboldt Bay Power Plant, Unit 3

Dear Commissioners and Staff:

Pacific Gas and Electric Company (PG&E) is submitting its decommissioning funding report for Humboldt Bay Power Plant (HBPP), Unit 3, pursuant to the requirements of 10 CFR 50. 75(f), 10 CFR 50.82(a)(8)(v), and 10 CFR

50. 82( a)(8)(vii).

Humboldt Bay Power Plant, Unit 3 PG&E has spent $656.0 million on NRG radiological decommissioning activities through December 2016. At the end of calendar year 2016, the market value of the HBPP Unit 3 (220 megawatt thermal (MWt)) decommissioning trust fund was

$180.8 million. PG&E estimates that $161.2 million will be needed to complete the NRG radiological scope. PG&E estimates that it will need to collect an additional

$282.0 million over four years, beginning in 2016, based on a site-specific decommissioning cost estimate prepared by PG&E staff and submitted to the California Public Utilities Commission's Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) on March 1, 2016, for radiological decommissioning, site restoration, and spent fuel management. The cost estimate in the NDCTP application is based on actual bids for remaining HBPP civil work scope and includes radiological decommissioning, such as costs for removal of underground reactor caisson, spent fuel management costs associated with the delay in the Department of Energy's acceptance of site-stored spent fuel, cost to remediate site radioactivity to resident farmer criteria, and updated remaining decommissioning costs based on actual past HBPP _decommissioning data versus industry estimates.

Document Control Desk March 31, 2017 Page2 PG&E Letter HBL-17-006 decommissioning scope of work and has withdrawn funds through 2016 from the HBPP trust resulting in a current market value lower than the NRC minimum estimate. The $438.2 million (2017 dollars) is a reduced NRC decommissioning estimate, of approximately $200 million from the 2016 submittal, due to the change in the burial calculation based on the new low level radioactive waste (LLRW) burial site disposal option, "Values fof generations located in the unaffiliated states and those located in compact affiliated states having no disposal facility."

PG&E is confident that the HBPP trust, with the noted additional contributions, will be sufficient to ensure successful radiological decommissioning and maintaining the spent fuel in an independent spent fuel storage installation at HBPP until 2030, based on the March 2016 site-specific decommissioning cost estimate prepared by PG&E staff.

Supporting Cost Estimates Based on a March 2016 site-specific cost estimate prepared by PG&E staff, PG&E estimates that the total HBPP decommissioning costs are approximately

$1,089.4 million (including $656.0 million disbursed from the Trust(s) through December 2016 and $161.2 million future radiological decommissioning costs for HBPP Unit 3, in 2017 dollars). These NRC decommissioning costs do not include site restoration ($56.7 million), or spent fuel management until 2030 ($215.5 million).

To assure that sufficient funds will be available for decommissioning, PG&E established external sinking trust fund accounts for HBPP Unit 3.

Supporting Enclosures Enclosures 1-4 provide supporting documentation for this report. provides decommissioning funding status report in a format suggested by Nuclear Energy Institute (NEI) and the NRC. provides information on the escalation of the required decommissioning funding amounts in 2017 dollars. As required by 10 CFR 50.75(c)(2), the information includes escalation factors for energy, labor, and waste burial costs. was prepared using NUREG-1577, "Standard Review Plan on Power Reactor Licensee Financial Qualifications and Decommissioning Funding Assurance," Revision 1 and NUREG-1307, "Report on Waste Burial Charges,"

Revision 16. provides a cash flow of the total decommissioning of HBPP that identifies the monies for NRC scope (removal of radiological contamination), site restoration (including the nonradiological work) and the spent fuel management.

Document Control Desk March 31, 2017 Page3 PG&E Letter HBL-17-006 contains the variance of the 2016 forecast of $141.2 million, as submitted in Enclosure 3 of PG&E Letter HBL-16-006, "Decommissioning Funding Report for Humboldt Bay Power Plant, Unit 3," dated March 31, 2016, to the actual expenditures for 2016 of $112.9 million.

PG&E is not including the 2015 site specific cost estimate prepared by PG&E as this document was included in PG&E letter HBL-16-006, "Decommissioning Funding Report for Humboldt Bay Power Plant, Unit 3," dated March 31, 2016.

PG&E makes no new or revised regulatory commitments (as defined by NEI 99-04) in this letter.

Should you have any questions, please contact Mr. Bob Kapus at (707) 444-0810.

,e? 4 ___ _

Edward D. Halpin Senior Vice President, Generation and Chief Nuclear Officer pns3/5956461 Enclosures cc:

HBPP Humboldt Distribution cc/enc: John B. Hickman, NRC/FSME/DWMEP Project Manager Kriss M. Kennedy, NRC Region IV Administrator INPO

I PG&E Letter HBL-17-006 NRC Decommissioning Funding Status Report Humboldt Bay Power Plant - Unit 3 (220 MWt)

PG&E Letter HBL-17-006 NRC Decommissioning Funding Status Report Humboldt Bay Power Plant - Unit 3 (220 MWt)

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 annually thereafter, on the status of its decommissioning funding for each reactor that it owns and has already closed.

Note that Items 3, 4, and 8 are data included in PG&E's Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) filed with the California Public Utilities Commission (CPUC) on March 1, 2016, which includes radiological decommissioning, site restoration, and spent fuel management costs. PG&E does not anticipate a decision on this filing until mid-2017.

1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75(b) and (c). 1 January 2017 dollars

$ in Millions

$ 438.2 (Humboldt Bay Power Plant, Unit 3 is a shutdown unit with a Site Specific Cost Study; therefore, the minimum decommissioning fund estimate is based on the Site Specific Cost Study shown in Item 8 of this enclosure.)

I

2. The amount accumulated at the end of the calendar year preceding the date of the report for items included in 10 CFR 50.75(b) and (c). (Alternatively, the total amount accumulated at the end of the calendar year preceding the date of the report can be reported here if the cover letter transmitting the report provides the total estimate and indicates what portion of that estimate is for items not included in 10 CFR 50.75(b) and (c)).

Market Value (December 2016 dollars)

$ 180.8

3. A schedule of the annual amounts remaining to be collected; for items in 10 CFR 50.75(b) and (c). (Alternatively, the annual amounts remaining to be collected can include items beyond those required in 10 CFR 50.75(b) and (c) if the cover letter transmitting the report provides a total cost estimate and indicates what portion of that estimate is for items that are not included in 10 CFR 50.75(b) and (c).

1

  • The NRC formulas in section 10 CFR 50. 75(c) include only those decommissioning costs incurred by licensees to remove a facility or site safely from service and reduce residual radioactivity to levels that permit: (1) release of the property for unrestricted use and termination of the license; or (2) release of the property under restricted conditions and termination of the license. The cost of dismantling or demolishing nonradiological systems and structures is not included in the NRC decommissioning cost estimates. The costs of managing and storing spent fuel on site until transfers to Department of Energy are not included in the cost formulas.

Page 1 of 2 PG&E Letter HBL-17-006 Amount remaining Number of years to collect 2016-2019 2016 Annual amount to be collected 2017-2019 Annual amount to be collected

$ 282.0*

4 years

$ 96.319

$ 61.906

4. The a*ssumptions used regarding escalation in decommissioning cost, rates of earnings on decommissioning funds (assumes trust will be gradually converted to a more conservative, all fixed income portfolio after 2010), and rates of other factors used in funding projections (all values below are from the 2015 NDCTP filing).

Escalation in decommissioning costs Rate of Return 2016 Escalation in decommissioning costs Rate of Return 2017 Escalation in decommissioning costs Rate of Return 2018 Escalation in decommissioning costs Rate of Return 2019 Escalation in decommissioning costs Rate of Return 2020 Escalation in decommissioning costs Rate of Return 2021 Escalation in decommissioning costs Rate of Return 2022-2028 3.01 percent 2.95 percent 2.91 percent 2.87 percent 2.84 percent 2.80 percent 2.77 percent

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 current method providing financial assurance occurring since the last submitted report.

None

7. Any material changes to trust agreements.
8. CPUC Submittal in 2017 Dollars in Millions:

Total Project (Decommission 2017)

Scope Excluded from NRC calculations Scope of Independent Spent Fuel Storage Installation from Licensing to Decommissioning in 2030 Scope Decommissioned and disbursed from Trust(s)

Total NRC Decommissioning Remaining Scope Page 2 of 2 None

$ 1,089.4 56.7 215.5

~

656.0 161.2

2017 Decommissioning Estimate Composite Escalation Development of E Component Development of L Component Development of B Component PG&E Letter HBL-17-006

Nuclear Regulatory Commission Estimate of Decommissioning Costs for Boiling Water Reactor (BWR)

In 2017 January 1986 Estimate Escalated to 1999 Escalated to 2000 Escalated to 2001 Escalated to 2002 Escalated to 2003 Escalated to 2004 Escalated to 2005 Escalated to 2006 Escalated to 2007 Escalated to 2008 Escalated to 2009 Escalated to 2010 Escalated to 2011 Escalated to 2012 Escalated to 2013 Escalated to 2014 Escalated to 2015 Escalated to 2016 Escalated to 2017 HBPP BWR

($ in millions)

$114.80 (Table 2.1 in NUREG 1307Rev15 has 128.9 no value for 1999 Burial}

$400.2 ($360.9 in 2000 Submittal)

$354.1 ($425.3 in 2001 Submittal)

$357.4 ($445.6 in 2002 Submittal)

$373.8 ($430.1 in 2003 Submittal)

$388.0 ($439.6 in 2004 Submittal)

$416.8 ($453.2 in 2005 Submittal)

$519.2 ($494.3 In 2006 Submittal)

$538.3 ($548.6 in 2007 Submittal)

$564.4 ($590.9 in 2008 Submittal)

$574.6 ($573.8 in 2009 Submittal)

$594.5 ($596.6 in 2010 Submittal)

$626.5 ($619.0 in 2011 Submittal)

$659.9 ($645.4 in 2012 Submittal)

$663.3 ($687.2 in 2013 Submittal)

$666.8 ($714.3 in 2014 Submittal)

$664.2 ($712.0 in 2015 Submittal)

$660.3 ($660.2 in 2016 Submittal)

$438.2 January 1986 based on 10 CFR 50.75 (c) Table of minimum amounts BWR based on minimum 1200 MW!= ($104 + (.009xMWt)) million per unit where BWR less than 1200 MWt use P=1200 MW!, HBPP 220 MW!

2017 Decommissioning Estimate Page 1 PG&E Letter HBL-17-006

Composite Escalation Calculating Overall Escalation Rate BWR Dec-05 Dec-06 Dec-07 Dec-OB Dec-09 Dec-10 Dec-11 Dec-12 Dec-13 Dec-14 Dec-15 Dec-16 Weight (1)

L (Labor) 2.0600 2.121B 2.1939 2.2536 2.27B4 2.3175 2.3711 2.4061 2.463B 2.5235 2.5B12 2.6492 E (Energy) 1.9106 1.9BOB 2.4513 1.B323 2.0402 2.3945 2.7719 2.B265 2.7672 2.2944 1.7442 1.B769 B (Burial) 13.3331 13.B744 14.41?4 15.0096 15.602B 16.5439 17.4B56 17.4B56 17.4B56 17.4B56 17.4B56 8.4126 (1) From NU REG 1307 Revision 16, Report on Waste Burial Charges, Section 2 Summary, Page 7... where A, B, and C are the fractions of the total 19B6 dollar costs that are attributable to labor (0.65), energy (0.13), and burial (0.22), respectively, and sum to 1.0.

BWR Combined Escalation Rate for:

Dec-06 Dec-07 Dec-OB Dec-09 Dec-10 Dec-11 Dec-12 Dec-13 Dec-14.

Dec-15 Dec-16 j

4.6B91 4.9163 5.0052 5.17BB 5.4573 5.74B4 5.77B2 5.80BO 5.7854 5.7513 3.B167 Page 2 0.65 0.13 0.22 PG&E Letter HBL-17-006

Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 Dec-99 Jan-00 Feb-00 Mar-00 Apr-00 May-00 Jun-00 Jul-00 Aug-00 Sep-00 Oct-00 Nov-00 Dec-00 Jan-01 Feb-01 Mar-01 Apr-01 May-01 Jun-01 Jul-01 Aug-01 Sep-01 Oct-01 Nov-01 Dec-01 Jan-02 Feb-02 Mar-02 Apr-02 May-02 Jun-02 Jul-02 Aug-02 Sep-02 Oct-02 Nov-02 Dec-02 Jan-03 Feb-03 PPI for Fuels &

Related Products (2000=100)

(P) =Industrial Energy Power 126.5 126.8 126.7 126.7 126.8 128.6 133.6 136.2 137.4 137.8 134.1 130.9 132.7 136.4 136.4 136.5 135.1 136.2 148.4 149.5 148.9 148.2 143.8 137.3

. 136.9 136.3 135.4 135.7 135.4 137.9 143.6 144.9 145.0 145.8 140.0 139.5 139.6 140.3 140.6 PPI for Light Fuel Oils (2000=100)

(F) = Light Fuel Oils 72.9 75.3 87.9 89.7 83.1 82.9 86.2 88.7 91.6 110.1 108.6 108.4 100.6 96.1 91.6 83.1 86.2 94.2 90.2 81.3 83.2 93 76.8 70.5 56.6 58.3 59.6 69.1 76.4 75 71.4 75.5 77.9 89.5 95.1 82.8 84.6 95.7 120.4 PPI for Fuels &

PPI for Light Related Products Fuel Oils (2000 = 100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils BWR~=

Q54 BWR~=

OM 1.0000 1.0000 1.0024 1.0329 1.0016 1.2058 1.0016 1.2305 1.0024 1.1399 1.0166 1.1372 1.0561 1.1824 1.0767 1.2167 1.0862 1.2565 1.0893 1.5103 1.0601 1.4897 1.0348 1.4870 1.0490 1.3800 1.0783 1.3182 1.0783 1.2565 1.0791 1.1399 1.0680 1.1824 1.0767 1.2922 1.1731 1.2373 1.1818 1.1152 1.1771 1.1413 1.1715 1.2757 1.1368 1.0535 1.0854 0.9671 1.0822 0.7764 1.0775 0.7997 1.0704 0.8176 1.0727 0.9479 1.0704 1.0480 1.0901 1.0288 1.1352 0.9794 1.1455 1.0357 1.1462 1.0686 1.1526 1.2277 1.1067 1.3045 1.1028 1.1358 1.1036 1.1605 1.1091 1.3128 1.1115 1.6516 Page3 PG&E Letter HBL-17-006 Energy Escalation Factor (E) for BWR (Humboldt) 1.0000 1.0164 1.0955 1.1069 1.0656 1.0721 1.1142 1.1411 1.1645 1.2830 1.2577 1.2428 1.2013 1.1887 1.1603 1.1070 1.1206 1.1758 1.2026 1.1512 1.1606 1.2195 1.0985 1.03*10 0.9415 0.9497 0.9541 1.0153 1.0601 1.0619 1.0635 1.0950 1.1105 1.1871 1.1977 1.1180 1.1297 1.2028 1.3599

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (2000 = 100)

(2000=100)

(2000 = 100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils (P) =Industrial Energy Power (F) = Light Fuel Oils BWRwt. =

0.54 BWRwt. =

0.46 Mar-03 143.3 128.9 1.1328 1.7682 Apr-03 144.3 98.3 1.1407 1.3484 May-03 145.1 85.5 1.1470 1.1728 Jun-03 148.3 87.2 1.1723 1.1962 Jul-03 151.6 90.1 1.1984 1.2359 Aug-03 151.3 94.1 1.1960 1.2908 Sep-03 152.0 88.2 1.2016 1.2099.

Oct-03 147.4 97.8 1.1652 1.3416 Nov-03 142.7 93.0 1.1281 1.2757 Dec-03 142.9 95.8 1.1296 1.3141 Jan-04 143.1 106.8 1.1312 1.4650 Feb-04 143.1 100.8 1.1312 1.3827 Mar-04 143.1 107.8 1.1312, 1.4787 Apr-04 143.1 115.2 1.1312 1.5802 May-04 144.2 116 1.1399 1.5912 Jun-04 152.4\\

111.5 1.2047 1.5295 Jul-04 152.2 119.3 1.2032 1.6365 Aug-04 154.0 131.1 1.2174 1.7984 Sep-04 154.0 136.8 1.2174 1.8765 Oct-04 145.8 161.7 1.1526 2.2181 Nov-04 144.9 153.6 1.1455 2.1070 Dec-04 146.2 133.8 1.1557 1.8354 Jan-05 148.9 138.5 1.1771 1.8999 Feb-05 148.0 146 1.1700 2.0027.

Mar-05 148.1 169.4 1.1708 2.3237 Apr-05 148.7 170.9 1.1755 2.3443 May-05 151.1 165.3 1.1945 2.2675 Jun-05 159.7 180.6 1.2625 2.4774

  • Jul-05 162.1 186.2 1.2814 2.5542 Aug-05 162.5 194.5 1.2846 2.6680 Sep"05 162.8 209.9 1.2870 2.8793 Oct-05 159.5 252.0 1.2609 3.4568 Nov-05 161.1 199.1 1.2735 2.7311 Dec-05 161.4 193.6 1.2759 2.6557 Jan-06 167.0 191.8 1.3202 2.6310 Feb-06 168.6 190.0 1.3328 2.6063 Mar-06 167.4 199.2 1.3233 2.7325 Apr-06 169.6 221.9 1.3407 3.0439 May-06 170.8 231.4 1.3502 3.1742 Jun-06 181.2 238.1 1.4324 3.2661 Page4 PG&E Letter HBL-17-006 Energy Escalation Factor (E) for BWR (Humboldt) 1.4251 1.2363 1.1589 1.1833 1.2157 1.2396 1.2054 1.2463 1.1960 1.2145 1.2848 1.2469 1.2911 1.3378 1.3475 1.3541 1.4025 1.4846 1.5206 1.6427 1.5878 1.4684 1.5096 1.5530 1.7011 1.7131 1.6881 1.8213 1.8669 1.9210 2.0194 2.2710 1.9440 1.9106 1.9231 1.9186 1.9715 2.1242 2.1892 2.2759

Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (2000 = 100)

(2000=100)

(2000=100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils (P) =Industrial Energy Power (F) =Light Fuel Oils BWRwt. =

0.54 BWRwt. =

0.46 Jul-06 181.9 231.6 1.4379 3.1770 Aug-06 180.2 241.4 1.4245 3.3114 Sep-06 181.0

~ 203.1

.1.4308 2.7860 Oct-06 171.2 198.1 1.3534' 2.7174 Nov-06 167.2 198.2 1.3217 2.7188 Dec-06 167.8 200.4 1.3265 2.7490 Jan-07 171.9 180.0 1.3589 2.4691 Feb-07 175.7 191.5 1.3889 2.6269 Mar-07 172.1 215.1 1.3605 2.9506 Apr-07 173.1 231.8 1.3684 3.1797 May-07 179.2 225.3 1.4166 3.0905 Jun-07 186.7 222.4 1.4759 3.0508 Jul-07 187.0 237.8 1.4783 3.2620 Aug-07 187.6 225.5 1.4830 3.0933 Sep-07 188.4 238.9 1.4893 3.2771 Oct-07 182.7 243.3 1.4443

. 3.3374 Nov-07 180.3 288.2 1.4253 3.9534 Dec-07 180.0 266.7 1.4229 3.6584 Jan-08 181.9 273.8 1.4379 3.7558 Feb-08 180.0 280.2 1.4229 3.8436 Mar-08 183.1 339.6 1.4474 4.6584 Apr-08 185.2 352.5 1.4640 4.8354 May-08 189.5 384.9 1.4980 5.2798 Jun-08 191.9 410.5 1.5170 5.6310 Jul-08 196.1 423.8 1.5502 5.8134 Aug-08 197.1 343.9 1.5581 4.7174 Sep-08 195.9 335.1 1.5486 4.5967 Oct-08 193.0 279.0 1.5257 3.8272 Nov-08 187.7 218.2 1.4838 2.9931 Dec-08 188.3 163.0 1.4885 2.2359 Jan-09 190.3 159.8 1.5043 2.1920 Feb-09 190.3 145.6 1.5043 1.9973 Mar-09 187.6 136.8 1.4830 1.8765 Apr-09 186.9 159.9 1.4775 2.1934 May-09 190.5 158.6 1.5059 2.1756 Jun-09 193.3 183.7 1.5281 2.5199 Jul-09 196.2 165.2 1.5510 2.2661 Aug-09 194.7 196.1 1.5391 2.6900 Sep-09 194.9 186.6 1.5407 2.5597 Oct-09 189.9 193.3 1.5012 2.6516 Page5 PG&E Letter HBL-17-006 Energy Escalation Factor (E) forBWR (Humboldt) 2.2379 2.2925 2.0542 1.9808 1.9644 1.9808 1.8696 1.9584 2.0919 2.2016 2.1866 2.2003 2.2988 2.2237 2.3117 2.3151 2.5882 2.4513 2.5042 2.5364 2.9245 3.0149 3.2377 3.4094 3.5113 3.0114 2.9507 2.5844 2.1781 1.8323 1.8207 1.7311 1.6640 1.8068 1.8140 1.9843 1.8799 2.0685 2.0094 2.0304

Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (2000 = 100)

(2000=100)

(2000 = 100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils (P) =Industrial Energy Power (F) = Light Fuel Oils BWRwt. =

0.54 BWRwt.=

0.46 Nov-09 186.0 207.8 1.4704 2.8505 Dec-09 186.0 197.5 1.4704 2.7092 Jan-10 186.3 220.7 1.4727 3.0274 Feb-10 186.1 200.2 1.4711 2.7462 Mar-10 189.0 217.0 1.4941 2.9767 Apr-10 188.8 231.5 1.4925 3.1756 May-10 192.0 226.0 1.5178 3.1001 Jun-10 197.8 212.4 1.5636 2.9136 Jul-10

'199.8 209.3 1.5794 2.8711 Aug-10 200.8 221.4 1.5874 3.0370 Sep-10 200.0 220.0 1.5810 3.0178 Oct-10 194.6 235.8 1.5383 3.2346 Nov-10 190.9 245.3

. 1.5091 3.3649 Dec-10 191.4 250.0 1.5130 3.4294 Jan-11 193.1 260.4 1.5265 3.5720 Feb-11 194.4 278.8 1.5368 3.8244 Mar-11 195.0 307.5 1.5415 4.2181 Apr-11 194.1 325.1 1.5344 4.4595 May-11 196.9 315.1 1.5565 4.3224 Jun-11 205.7 316.9 1.6261 4.3471 Jul-11 215.3 311.5 1.7020 4.2730 Aug-11 216.6 296.9 1.7123.

4.0727 Sep-11 215.8 306.5 1.7059 4.2044 Oct-11 206.6 299.6 1.6332 4.1097 Nov-11 204.0 322.7 1.6126 4.4266 Dec-11 204.4 301.0 1.6158 4.1289 Jan-12 201.1 308.8 1.5897 4.2359 Feb-12 200.3 316.5 1.5834 4.3416 Mar-12 199.8 330.8 1.5794 4.5377 Apr-12 198.1 327.1 1.5660.

4.4870 May-12 201.5 315.6 1.5929 4.3292 Jun-12.

207.7 284.6 1.6419 3.9040 Jul-12 221.5 287.9 1.7510 3.9492 Aug-12 222.1 313.4 1.7557 4:2990 Sep-12 222.8 330.4 1.7613 4.5322 Oct-12 214.1 334.1 1.6925 4.5830 Nov-12 212.3 311.6 1.6783 4.2743 Dec-12 213.8 303.3 1.6901 4.1605 Jan-13 199.2 303.6 1.5747 4.1646 Feb-13 199.4 327.7 1:5763 4.4952 Page6 PG&E Letter HBL-17-006 Energy Escalation Factor (E) forBWR (Humboldt) 2.1052 2.0402 2.1879 2.0577 2.1761 2.2667 2.2457 2.1846 2.1736 2.2542 2.2420 2.3186 2.3628 2.3945 2.4674 2.5891 2.7727 2.8800 2.8288 2.8777 2.8846 2.7981 2.8552 2.7724 2.9071 2.7719 2.8070 2.8522 2.9403 2.9096 2.8516 2.6825 2.7622 2.9257 3.0359 3.0221 2.8725 2.8265 2.7661 2.9190

Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (2000 = 100)

(2000=100)

(2000 = 100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils (P) =Industrial Energy Power (F) =Light Fuel Oils BWRwt. =

0.54 BWRwt. =

0.46 Mar-13 199.0 308.7 1.5731 4.2346 Apr-13 198.8 303.9 1.5715 4.1687 May-13 203.5 296.4 1.6087 4.0658 Jun-13 211.9 294.9 1.6751 4.0453 Jul-13 211.4 300.4 1.6711 4.1207 Aug-13 210.4 307.4 1.6632 4.2167 Sep-13 210.3 315.3 1.6625 4.3251 Oct-13 201.2 306.8 1.5905 4.2085 Nov-13 199:0 295.3 1.5731 4.0508 Dec-13 200.5 302.9 1.5850 4.1550 Jan-14 215.1 297.5 1.7004 4.0809 Feb-14 214.4l 309.1 1.6949 4.2401 Mar-14 214.8 306.5 1.6980 4.2044 Apr-14 210.8 306.7 1.6664 4.2071 May-14 215.2 304.4 1.7012 4.1756 Jun-14 224.0 296.5 1.7708 4.0672 Jul-14 227.5 295.3 1.7984 4.0508 Aug-14 227.7 293.9 1.8000 4.0316 Sep-14 225.1 291.0 1.7794 3.9918 Oct-14 217.0 271.4 1.7154 3.7229 Nov-14 210.7 260.9 1.6656 3.5789 Dec-14 213.9 218.9 1.6909 3.0027 Jan-15 222.4 173.6 1.7581 2.3813 Feb-15 221.1 184.3 1.7478 2.5281 Mar-15 218.2 185.7 1.7249 2.5473 Apr-15 213.3 178.2 1.6862 2.4444 May-15 217.0 196.6 1.7154 2.6968 Jun-15 237.2 193.4 1.8751 2.6529 Jul-15 237.3 187.0 1.8759 2.5652 Aug-15 236.8 180.4 1.8719 2.4746 Sep-15 234.2 163.1 1.8514 2.2373 Oct-15 218.2 165.3 1.7249 2.2675 Nov-15 213.4 159.7 1.6870 2.1907 Dec-15 214.8 131.1 1.6980 1.7984 Jan-16 205.3 114.4 1.6229 1.5693 Feb-16 204.3 107.7 1.6150 1.4774 Mar-16 204.5 113.8 1.6166 1.5610 Apr-16 202.4 116.8 1.6000 1.6022 May-16 206.3 137.8 1.6308 1.8903 Jun-16 220.4 149.4 1.7423 2.0494 Page 7 En.closure 2 PG&E Letter HBL-17-006 Energy Escalation Factor (E) forBWR (Humboldt) 2.7974 2.7662 2.7390 2.7654

. 2.7979 2.8378 2.8873 2.7948 2.7128 2.7672 2.7954 2.8657 2.8510 2.8351 2.8394 2.8271 2.8345 2.8265 2.7971 2.6389 2.5457 2.2944 2.0448 2.1068 2.1032 2.0350 2.1669 2.2329 2.1930 2.1492 2.0289 1.9745 1.9187 1.7442 1.5982 1.5517 1.5910 1.6010 1.7502 1.8836

Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/10/17) and WPU0543 Industrial Electric Power (as of 03/10/17)

REBASED TO 1986 = 100 Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 PPI for Fuels &

Related Products (2000 = 100)

(P) =Industrial Energy Power 226.2 227.3 228.1 216.2 210.7 215.0 PPI for Light

  • Fuel Oils (2000=100)

(F) = Light Fuel Oils 152.2 143.5 155.5 152.8 151.6 152.0 October 2016 through December 2016 are Preliminary Values from PPI Indices PPI for Fuels &

PPI for Light Related Products _

Fuel Oils (2000 = 100)

(2000=100)

(P) =Industrial Energy Power (F) = Light Fuel Oils BWR wt. =

0.54 BWR wt. =

0.46 1.7881 2.0878 1.7968 1.9684 1.8032 2.1331 1.7091 2.0960 1.6656

. 2.0796 1.6996 2.0850 Based on Base Year 2000 being the indices values Dec 1999, January 2017 base will be December 2016 Page 8 PG&E Letter HBL-17-006 Energy Escalation Factor (E) forBWR (Humboldt) 1.9260 1.8758 1.9549 1.8871 1.8560 1.8769 L

/

Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 16, Section 3.1 Using Regional Indices SERIES ID: CIU20100000002401 (as of03/10/17)

PG&E Letter HBL-17-006 Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (2005=100)

Factor Dec-05 100 2.06000 Jan-06 Feb-06 Mar-06 100.6 2.07236 Apr-06 May-06 Jun-06 101.8 2.09708 Jul-06 Aug-06 Sep-06 102.5 2.11150 Oct-06 Nov-06 Dec-06 103 2.12180 Jan-07 Feb-07 Mar-07 104.2 2.14652 Apr-07 May-07 Jun-07 104.9 2.16094 Jul Aug-07 Sep-07 105.7 2.17742 Oct-07 Nov-07 Dec-07 106.5 2.19390 Jan-08 Feb-08 Mar-08 107.8 2.22068 Apr-08 May-08 Jun-08 108.4 2.23304 Jul-08 Aug-08 Sep-08 109.3 2.25158 Oct-08 Nov-08 Dec-08 109.4 2.25364 Jan-09 Feb-09 Mar-09 109.9 2.26394 Apr-09 May-09 Jun-09 110 2.26600 Jul-09 Aug-09 Sep-09 110.3 2.27218 Oct-09 Nov-09 Page9

Development of L Component Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 16, Section 3.1 Using Regional Indices SERIES ID: CIU2010000000240I (as of03/10/17)

PG&E Letter HBL-17-006 Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (2005=100)

Factor Dec-05 100 2.06000 Dec-09 110.6 2.27836 Jan-10 Feb-10 Mar-10 111.3 2.29278 Apr-10 May-10 Jun-10 111.7 2.30102 Jul-10 Aug-10 Sep-10 112.3 2.31338 Oct-10 Nov-10 Dec-10 112.5 2.31750 Jan-11 Feb-11 Mar-11 113.5 2.33810 Apr-11 May-11 Jun-11 114.3 2.35458 Jul-11 Aug-11 Sep-11 114.6 2.36076 Oct-11 Nov-11 Dec-11 115.1 2.37106 Jan-12 Feb-12 Mar-12 115.7 2.38342 Apr-12 May-12 Jun-12 116.3 2.39578 Jul-12 Aug-12 Sep-12 116.8 2.40608 Oct Nov-12 Dec-12 116.8 2.40608 Jan-13 Feb-13 Mar-13 117.6 2.42256 Apr-13 May-13 Jun-13 118.5 2.44110 Jul-13 Aug-13 Sep-13 119.2 2.45552 Oct-13 Page 10

Development of L Component Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 16, Section 3.1 Using Regional Indices SERIES ID: CIU20100000002401 (as of03/10/17)

PG&E Letter HBL-17-006 Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (2005=100)

Factor Dec-05 100 2.06000 Nov-13 Dec-13 119.6 2.46376 Jan-14 Feb-14 Mar-14 120.1 2.47406 Apr-14 May-14 Jun-14 120.9 2.49054 Jul-14 Aug-14 Sep-14 121.9 2.51114 Oct-14 Nov-14 Dec-14 122.5 2.52350 Jan-15 Feb-15

. Mar-15 123.1 2.53586 Apr-15 May-15 Jun-15 123.8 2.55028 Jul-15 Aug-15 Sep-15 124.6 2.56676 Oct-15 Nov-15 Dec-15 125.3 2.58118 Jan-16 Feb-16 Mar-16 126.2 2.59972 Apr-16 May-16 Jun-16 127.2 2.62032 Jul-16 Aug-16 Sep-16 127.9 2.63474 Oct-16 Nov-16 Dec-16 128.6 2.64916 Page 11

Development of B Component PG&E Letter HBL-17"006 Development of Burial Escalation Developed from NUREG-1307 Revision 16 Table 2.1 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Values of Bx as a Function of LLW Burial Site and Year(a) (Values for Generators Located in the Unaffiliated States and those Located in Compact-Affiliated States havihg no Disposal Facility(c))

Revised to Bx Values for Generic LLW Disposal Site are assumed to be the same as that provided for the Atlantic Compact, for lack of a better alternative at this time Revised to Bx Values for Generic LLW Disposal Site are assumed to be Combination of Compact-Affiliated and Non-Compact Facility for HBPP BWR BWR Burial Costs Restated to 1986 = 100 1.561 1.0000 1.831 1.1730 2.361 1.5125 9.434 6.0436 9.794 6.2742 10.42 6.6752 10.379 6.6489 13.837 8.8642 13.948 8.9353 16.244 10.4061 16.474 10.5535 16.705 10.7015 17.337 11.1063 17.970 11.5119 19.391 12.4222 20.813 13.3331 21.658 13.8744 22.504 14.4164 23.430 15.0096 24.356 15.6028 25.825 16.5439 27.295 17.4856 27.295 17.4856 27.295 17.4856 27.295 17.4856 27.295 17.4856 13.132 8.4126 Table 2.1 Note (e) Bx values for the generic site are assumed to be the same as that provided for the Atlantic Compact for lack of a better alternative at this time.

Note (f) Effective with NUREG-1307, Revision 8 (Ref.3) an alternative disposal option was introduced in which the bulk of the LLW is assumed to be dispositioned by waste vendors and/or disposed of at a non-compact disposal facility.

Note (g) Effective with NUREG1307, Revision 15, the nomenclature for the two disposal options, referred to as "Direct Disposal" and "Direct Disposal with Vendors" in previous revisions of NUREG-1307, is changed to "Compact-Affiliated Disposal Facility Only and "Combination of Compact-Affiliated and Non-Compact Disposal Facilities" to better describe the options.

Note (h) 2015 The NRC has issued Regulatory Issue Summary 2014-12, "Decommissioning Fund Status Report Calculations Update to Low-Level Waste Burial Charge Information," to inform licensees that they may use low-level waste burial charge data contained in Revision 15 of NUREG-1307, Report on Waste Burial Charges: Changes in Decommissioning Waste Disposal Costs at Low-Level Waste Burial Facilities, dated January 2013, when preparing their periodic decommissioning fund status report.

Note (i) Effective with NUREG-1307, Revision 16, the CWF in Andrews County, Texas, is also available as a full-service (i.e.,

Class A, B, and C) LLW disposal facility for waste generators located in States not affiliated with the Texas Compact. Out-of-compact generators, however, must submit an import petition to the Texas Compact Commission for approval prior to shipping.

The State of Texas also limits total non-compact waste disposed at the CWF to 30-percent of licensed capacity and imposes additional fees on LLW disposed of from out-of-compact generators. With the availability of this full-service disposal facility to out-of-compact waste generators and the Clive, Utah disposal facility for any Class A LLW generated in the U.S., the Generic LLW Disposal Site option used in previous versions of NUREG-1307 is replaced with this option, which provides Bx values representing a composite of the disposal rates for these two disposal facilities. These Bx factors are recommended for use for plants that currently have no disposal site available within their designated LLW Compact. Accordingly, given this consideration, licensees may want to set aside additional decommissioning trust funds to avoid significant future shortfalls in funding and potential enforcement actions.

I Page 12

Humboldt Bay Power Plant Decommissioning Cash Flow Nominal/2017 Dollars PG&E Letter HBL-17-006

Yepr 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 TOTAL

1)
2)
3)

Humboldt Bay Power Plant Decommissioning Cash Flow (Note 1)

Nominal/2017 Dollars Cumulative SPENT FUEL Decommission NRC NON-NRC MANAGEMENT TOTAL Estimate

$1,678,452

$1,678,452

$1,678,452

$8,663,216

$8,663,216

$10,341,668

$5,573,757

$344,408

$5,918,165

$16,259,833

$723,490

$2,281,454

$3,004,944

$19,264,777

$85,241

$2,736,091

$2,821,332

$22,086,109

$89,543

$398,012

$487,555

$22,573,664

$994,127

$113,704

$1,107,831

$23,681,495

$494,838

$2,539,476

$3,034,314

$26, 715,809

$491,070

$1,444,628

$1,935,698

$28,651,507

$161,506

$1,671,769

$1,833,275

$30,484, 782

$1,073,612

$3,546,617

$4,620,229

$35,105,011

$4,474,247

$9,240,172

$13,714,419

$48,819,430

$12,590,383

$28,485,988

$41,076,371

$89,895,801

$32,901,391

$3,179,956

$36,081,347

$125,977,148

$56,957,494

$5,734,776

$62,692,270

$188,669,418

$60,585,531

$5,495,157

$66,080,688

$254,750,106

$81,577,560

$4,509,009

$86,086,569

$340,836,675

$93,946,862

$4,668,626

$98,615,488

$439,452,163

$79,506,972

$5,085,456

$84,592,428

$524,044,590

$106,846,880

$5,853,718

$112,700,598

$636,745,188

$106,532,076

$619,888

$5,768,725

$112,920,689

$749,665,878

$90,265,530

$16,774,759

$14,789,629

$121,829,918

$871,495, 796

$32,011,805

$24,368,994

$11,199,478

$67,580,277

$939,076,073

$36,085,581

$9,536,866

$45,622,447

$984,698,519

$2,857,139

$8,705,964

$11,563,103

$996,261,622

$0

$8,885,357

$8,885,357

$1,005,146,979

$0

$8,195,001

$8,195,001

$1,013,341,980

$0

$8,171,383

$8,171,383

$1,021,513,363

$0

$8,092,155

$8,092,155

$1,029,605,518

$0

$8,092,155

$8,092,155

$1,037,697,673

$0

$8,788,085

$8,788,085

$1,046,485,758

$0

$8,163,007

$8,163,007

$1,054,648, 765

$0

$8,161,761

$8,161,761

$1,062,810,526

$0 1,585,481

$10,298,911

$11,884,392

$1,074,694,918

$0

$13,305,145

$1,410,598

$14,715,743

$1,089,410,661

$817,168,302

$56,654,268

$215,588,091

$1,089,410,661 Cash Flow is based on construction of ISFSI and Fuel removed from HBPP in 2030 (Assumes DOE Used Fuel Repository opens in 2028 allowing HBPP Fuel to be shipped during 2028-2029 allowing for Final"-

Site Restoration in 2030).

Market Value of Trust as of 12/2016 was $180.8 million, actual expended as of 12/2016 was $749.7 Million including $93.1 million Spent Fuel Management and $0.6 million in Non-NRC scope.

Totals may not balance due to rounding.

PG&E Letter HBL-17-006

$749,665,878 Actual

$930,492,497 Actual+ Market Value Page 1

Variance of the 2016 Forecast PG&E Letter HBL-17-006

Estimated Costs:

J PG&E Letter HBL-17-006 Page 1 of 1 Forecast of 2016 per PG&E Letter HBL-16-006, Enclosure 3, dated March 31, 2016, in 2016 dollars:

NRC Scope (Radiological)

Non-NRC Scope Spent Fuel Management Actual Costs:

$119,991,418 6,998,648

$ 14,260,889 Actual 2016 Incurred Costs, provided in Enclosure 3 of this letter, reflects the actuals for 2016 in nominal dollars.

NRC Scope (Radiological)

Non-NRC Scope Spent Fuel Management Variance: (Favorable)

NRC Scope (Radiological)

Non-NRC Scope Spent Fuel Management

$106,532,076 619,888 5,768,725

. $ 13,459,342 6,378,760 8,492,164 Decommissioning costs were underspent in 2016 primarily due to civil works contractor's delay in invoicing for intake-discharge canal remediation and caisson removal work performed in 2016. Non-NRC related scope was deferred to 2017, due to.the delay in the 2015 NDCTP approval by the CPUC, Spent Fuel Management delayed work on infrastructure upgrades and the upgrade for the security computer system that was planned in 2016.