TROJAN DECOMMISSIONING STATUS. OPUC Meeting March 8, 2005 (draft)

Transcription

1 TROJAN DECOMMISSIONING STATUS OPUC Meeting March 8, 2005 (draft) 1

2 Meeting Agenda Trojan Decommissioning Overview History Major Projects Overall Performance Remaining Major Activities Current Issues USDOE Fuel Storage Non-radiological Building Demolition Regulatory Preview 2

3 Decommissioning History Permanent Shutdown Jan 1993 Large Component Removal Nov 1995 Decommissioning Plan NRC Approval Apr 1996 Reactor Vessel Removal Aug 1999 Containment Building Concrete Removal Jan 2001 ISFSI Fully Loaded Sep 2003 Major Radiological Bldg Remediation Cp Jul 2004 All Radiological Remediation Complete Sep 2004 Final Survey Data Collection Complete Nov 2004 All Final Survey Reports Submitted to NRC Dec

4 Trojan Site Layout 4

5 Trojan Structures 5

6 Large Component Removal 6

7 Large Component Removal 7

8 Large Component Removal 8

9 Reactor Vessel and Internals Removal Project (RVAIR) 9

10 RVAIR Project 10

11 RVAIR Project 2000 Project Management Institute (PMI) International Project of the Year 11

12 Containment Concrete Removal 12

13 Containment Concrete Removal 13

14 Containment Building Pre/Post

15 Refueling Water Storage Tank 15

16 Independent Spent Fuel Storage Installation (ISFSI) Fuel Loading 16

17 Multi-Purpose Canister (MPC) Operations 17

18 Moving the Multi-Purpose Canister 18

19 ISFSI Pad with Loaded Casks 19

20 Spent Fuel Pool Before After Spent Fuel Pool Cask Load Pit 20

21 Radwaste Evaporator Room Before After 21

22 Main Steam Support Structure A Cubicle - 59 level Before After 22

23 Miscellaneous Buildings Warehouse Maintenance Building 23

24 Turbine Building 24

25 Trojan Visitors Center 25

26 Final Radiological Survey Plant divided into 9 survey groups Containment MSSS/EPA/SGBD (between Containment, Turbine, and Control Bldgs.) Turbine and Control Buildings Embedded Pipe Auxiliary Building Fuel Building Support Facilities and Site Grounds Spent Fuel Pool Impacted Areas Plant Systems Key Statistics 250,000 Square meters of surface area surveyed 26,000 Surveyor hours to collect data 62,000 Survey measurements collected NRC Confirmation Surveys NRC Review and Evaluation of Final Reports 26

27 Decom. Cost Estimate Comparison ($1997) Category TDF Update TDF Update TDF Update UE-102 Dec 99 Dec. 04 DECON Non-Rad. Decom ISFSI Const./Fuel Load ISFSI Long Term Ops Financing Subtotal Project Reserve Total

28 Project Completion Percentage Decommissioning Planning Large Component Removal RVAIR 100% 100% 100% Percent Complete thru 12/31/04 Aux/ Fuel/ Other Building Equipment Removal Containment Building Equipment Removal 100% 100% TDF Remaining Estimate as of 01/05 All Buildings - Floor Drains 100% All Buildings - Surface Decon Radioactive Waste Disposal 100% 100% Utility/ Contractor Staff 92% Corporate Overhead Undistributable Costs 95%. 96% Site Termination Survey 100% Non Radiological Decommissioning 63% Building Demolition 12% ISFSI Constr uction and Loading 100% ISFSI Decommiss ioning 0% ISFSI Long Ter m Oper ations 17% Decommissioning Financing 100% 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 $ x 1,000 28

29 Decommissioning Cost Estimate as of December 2004 ($1997) Category Actual to Date To Complete TDF Update DECON Non-Rad Decom ISFSI Const./Fuel Load ISFSI Long Term Ops Financing Subtotal Project Reserve Total

30 Decommissioning Cost Comparison (all costs in millions '03 $'s) Big Rock 1 Yankee Rowe San Onofre 1 Facility Haddam Neck Maine Yankee 4 Rancho Average 3 Seco Trojan 2 (5 PWR's) Thermal Rating (MWt) ,347 1,825 2,700 2,772 3,411 Total Cost NRC- Required Activities NRC Funding Level Requirement (waste processors) Cost of NRC- Required Activities v. NRC Funding Level Requirements (%) 86% 161% 139% 149% 126% 116% 97% 137% Cost Per Thermal Megawatt Note 1: only BWR reactor in group Note 2: only PWR located in Northwest Compact in group Note 3: only PWR's not located in Northwest Compact Note 4: does not reflect a $44 million credit received from performance and payment bond settlement 30

31 Schedule, Staffing, Performance Overall Radiological Decommissioning Schedule Performance ISFSI Project delayed approx. 3.5 years Overall project delayed approx. 2.5 years Overall Radiological Decommissioning Cost Performance Approx. 8% under budget Awarded Project Management Institute Project of the Year Staffing PGE and Contract Personnel January December Additional layoffs thru Staffing at the end of radiological decommissioning project ISFSI Long-term staff 31

32 Remaining Major Activities Complete Radiological Decom. June 2005 NRC Terminate Part 50 License June 2005 On-going Fuel Storage Operations thru 2018 Fuel Shipment Based on Original Decom. Plan Building/ISFSI Demo. and Site Restoration Based on Original Decom. Plan 32

33 Current Issues ISFSI operations will continue until 2023 (current projection) due to delays with the High Level Waste Repository USDOE scheduled to open repository in 2010 Significant uncertainty with this schedule Based on fuel shipment allotment, first PGE fuel ships in 2013 Final shipment projected in 2023 ISFSI Decommissioning in 2024 Prompt Building Demolition Proposal Complete major building demolition in versus end of project. (Cooling Tower, Turbine Building, Control Building, Auxiliary Building, Fuel Building, and Containment) Currently obtaining co-owner approval of change Plan to proceed following management approval 33

34 Rationale for Prompt Demolition Advantages of Prompt Demolition Resolves uncertainty for a significant portion of remaining costs Uses Trojan experience-base while still available Shares resources for demolition and remaining radiological decom. Avoids out-year costs of inspections and maintenance Mitigates increase in out-year cost/risk from longer ISFSI storage Expresses PGE s environmental stewardship Provides jobs for near term regional economic health Risks of Stay-the-Course or Delayed Demolition: Increases in costs Demolition Regulation Inspection of remaining structures Maintenance of remaining structures Less costly and risky buildings will remain for later demolition. 34

35 Regulatory Preview Continued Updates with OPUC Commission and Staff Audits Staff Internal Re-evaluate NDT contribution with next General Rate Case Contribution continues through 2006 Update contribution with next general filing Review work yet to be completed Re-evaluate contribution for 2007 and beyond 35