A. Attachment A contains the report Hydro Plant Decommissioning Update, July 2010.

Transcription

1 Requests for Information CA-NP-036 NP 2013/2014 GRA Q. [Decommissioning] Please all workpapers, assumptions, considerations and material reviewed and/or relied upon in developing each production plant decommissioning estimate. A. Attachment A contains the report Hydro Plant Decommissioning Update, July Attachment B contains the report Thermal Plant Decommissioning Update, August Newfoundland Power objects to the production of all workpapers, assumptions, considerations and material reviewed and/or relied upon in developing estimates as they are not necessary for the purpose of a satisfactory understanding of the matters to be considered in this Application. Newfoundland Power 2013/2014 General Rate Application Page 1 of 1

2 Requests for Information CA-NP-036 Attachment A NP 2013/2014 GRA Hydro Plant Decommissioning Update July 2010 Newfoundland Power 2013/2014 General Rate Application

3 Hydro Plant Decommissioning Update July 2010

4 Hydro Plant Decommissioning Update Page i Executive Summary The primary objective of this report is to provide an update to the previous hydro plant decommissioning reports compiled in 2000 and 2005, summarizing the estimated gross salvage, cost of retiring, and net salvage of the hydro-electrical developments currently in-service by Newfoundland Power in Canadian 2010 dollars. The total estimated decommissioning costs in the 2000 report were determined by contacting contractors familiar with demolition work. In instances, where contractor estimates were not available, unit prices were derived using common estimating practices. To establish the cost estimates for this report the unit prices utilized in the 2010 report were adjusted to account for increased costs related to market prices, environmental regulations, inflation etc. A summary of the gross salvage, cost of retiring, and the net salvage value of the hydro plants that Newfoundland Power currently has in-service is provided in the table below: Newfoundland Power Inc. July 2010

5 Hydro Plant Decommissioning Update Page ii Estimated Cost of Retiring Less Salvage for Hydroelectric Plants Plant Fixed Capital Estimated Net Salvage Estimated Cost of Retiring Estimated Retirement Less Salvage (Col.2 - Col.3) < $ 000 > < $ 000 > < $ 000 > < $ 000 > Lookout Brook 8, , , Sandy Brook 4, Rattling Brook 6, , , Port Union 1, Lockston 3, Heart's Content 2, New Chelsea/Pittman's 6, Victoria 1, Seal Cove 7, , , Topsail 5, Petty Harbour 7, Pierre's Brook 5, , , Mobile/Morris 9, , , Tors Cove/Rocky Pond 9, , , Cape Broyle/Horse Chops 11, , , Fall Pond West Brook 1, Lawn 2, Rose Blanche 15, , , Total 110, , , Newfoundland Power Inc. July 2010

6 Hydro Plant Decommissioning Update Page iii Table of Contents 1.0 INTRODUCTION DECOMMISSIONING SCENARIOS DECOMMISSIONING ESTIMATES LOOKOUT BROOK SANDY BROOK RATTLING BROOK PORT UNION LOCKSTON HEART'S CONTENT NEW CHELSEA & PITMANS POND VICTORIA SEAL COVE TOPSAIL PETTY HARBOUR PIERRE'S BROOK MOBILE/MORRIS TORS COVE/ROCKY POND CAPE BROYLE/HORSE CHOPS FALL POND WEST BROOK LAWN ROSE BLANCHE APPENDIX A Newfoundland Power Inc. July 2010

7 Hydro Plant Decommissioning Update Page Introduction Newfoundland Power owns and operates 23 small hydroelectric plants in 19 developments. The total installed capacity is 94.7 MW and they generate an average of 450 GWH per annum. The turbine-generator units range in size from 350 kw to 12,000 kw. These developments are scattered all over the province with the greatest concentration on the Avalon Peninsula. The oldest development in the system is Petty Harbour, which is vintage 1900 while the newest development is Rose Blanche Plant. The Rose Blanche Development was constructed in 1998 and commissioned in Since the late seventies there has been extensive work carried out on the existing hydro plants with replacements of various components due to deterioration. Replacements have included entire turbine-generator sets, dams, penstocks, switchgear and controls, and other components. There has also been various repairs and upgrading carried out including runner replacements, concrete dam repairs and controls upgrading. The intention of Newfoundland Power is to maintain and operate these developments well in to the future, as long as they continue to provide an economical source of energy. Since the previous 2005 report there have been several upgrades and replacements to various components of the existing hydro developments. Upgrades and replacements that will directly affect the estimated retirement cost include the replacement of woodstave with steel penstocks at the Rattling Brook and Rocky Pond Hydro Plants. Newfoundland Power Inc. July 2010

8 Hydro Plant Decommissioning Update Page Decommissioning Scenarios To generate precise estimates associated with the demolition cost estimates, and salvage values of each component of every hydro development many appropriate assumptions and methodologies of decommissioning were developed. Comments on these assumptions are presented in Section of the October 2000 Decommissioning of Hydroelectric Plants Owned by Newfoundland Power report located in Appendix A of this report. 3.0 Decommissioning Estimates In the 2000 report, establishing the costs related to the gross salvage and cost of retiring each component of each hydro system was accomplished by using recent project costs, whenever possible. In instances where this information was not available, unit prices were derived using common raw estimating practices and/or appropriate contractor quotations. The unit prices for the 2000 report were reviewed and appeared to be reasonable for that particular time frame. To establish the cost estimates for this report the unit prices from the 2010 report were adjusted to account for increase in market price, environmental regulations, inflation etc. The adjusted unit prices are provided in the table below: ITEM DESCRIPTION UNIT PRICE Bulk Concrete $115.00/ M 3 Bulk Concrete (With Attachments) $185.00/ M 3 Reinforced Concrete $185.00/ M 3 Reinforced Concrete (With Attachments) $225.00/ M 3 Installed Concrete $ / M 3 Steel Building Demolition $22.50/ M 3 Asbestos Siding Removal $35. 00/ M 2 Wooden Penstock $12.00/ M 2 Steel Penstock (.914m m) DIA. $17.50/ M 2 Steel Penstock (1.83m m) DIA. $21.00/ M 2 Fibreglass Penstock (.914m m) DIA. $17.50/ M 2 Fibreglass Penstock (1.83m m) DIA. $21.00/ M 2 Newfoundland Power Inc. July 2010

9 Hydro Plant Decommissioning Update Page 3 ITEM DESCRIPTION UNIT PRICE Transmission (Single Pole) $18,000.00/km Transmission (Double Pole) $20,000.00/km Distribution (Single Pole) $5,000.00/km Rockfilled Gabion Demolition $25.00/M 3 Timber Crib Demolition $30.00/M 3 Timber Crib Construction $250.00/M 3 Earthfill (Removal) $10.00/M 3 Rockfill Overflow Spillways $11.00/M 3 Common Fill (Supply & Place) $20.00/M 3 Culvert Removal $20.00/ M 2 Selective Planting $1,500.00/Ha Hydroseeding $3.00/M 2 Based on the above unit prices, a cost estimate related to the gross salvage and retirement for each of Newfoundland Power s hydro electric developments in 2010 Canadian Dollars is presented below. A description of each hydro plant, its various components, and decommissioning procedure utilized to generate the estimates is contained in Section of the Decommissioning of Hydroelectric Plants Owned by Newfoundland Power report located in Appendix A of this report. Estimates for the costs associated with an environmental assessment and with putting in place environmental controls during decommissioning are included as percentages of the total decommissioning costs. Costs associated with environmental cleanup or habatit restoration are not included. These costs are site specific and require significant study to produce an accurate cost estimate. Newfoundland Power Inc. July 2010

10 Hydro Plant Decommissioning Update Page LOOKOUT BROOK Newfoundland Power Inc. July 2010

11 Hydro Plant Decommissioning Update Page 5 Newfoundland Power Inc. July 2010

12 Hydro Plant Decommissioning Update Page 6 ESTIMATED COST OF RETIRING LOOKOUT BROOK DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Substructure Concrete M3 $ $10, $0.00 $10, Superstructure Concrete M3 $ $36, $0.00 $36, Powerhouse crane 7.5 ton L.S. $1, $1, $2, ($1,000.00) Tailrace Concrete M3 $ $16, $0.00 $16, Turbine/Generator Horiz Francis L.S. $18, $36, $3, $33, Penstock Steel M2 $ $43, $0.00 $43, FRP (buried) M2 $ $116, $0.00 $116, Anchor Blocks and Saddles Concrete M3 $ $98, $0.00 $98, Forebay Dam Rockfill M3 $ $17, $0.00 $17, and Concrete M3 $ $106, $0.00 $106, Gatehouse Equipment L.S. $2, $4, $1, $3, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Joe Dennis Spillway Dam Earthfill M3 $ $40, $0.00 $40, Side Dam Earthfill M3 $ $3, $0.00 $3, Gate Equipment L.S. $2, $2, $0.00 $2, Outlet Timber culvert M3 $ $6, $0.00 $6, Cross Pond Dam Earthfill M3 $ $16, $0.00 $16, Cross Pond Outlet Concrete M3 $1, $4, $0.00 $4, Walkway/Platform Timber/Steel L.S. $1, $1, $0.00 $1, Gate Equipment L.S. $2, $2, $0.00 $2, Various Cabins Woodframe L.S. $1, $4, $0.00 $4, Revegetation Selective Planting Ha $1, $1, $0.00 $1, Mobilization/ Demobilization L.S. $40, $0.00 $40, Newfoundland Power Inc. July 2010

13 Hydro Plant Decommissioning Update Page 7 SALVAGE UNIT ESTIMATED ESTIMATED COST OF RETIRING TYPE UNIT ESTIMATED VALUE TOTAL COST ($) QUANTITY LOOKOUT BROOK DESCRIPTION COST ($) ($) COST ($) Transmission Line Single Pole KM. $18, $270, $0.00 $270, Forebay Line Single Pole KM. $5, $5, $0.00 $5, Substation L.S. $6, $6, $2, $4, SUBTOTALS $891, $8, $882, CONTINGENCIES (10%) $89, $0.00 $89, ENGINEERING & SUPERVISION (5%) $44, $0.00 $44, ENVIRONMENTAL ASSESSMENT (6%) $53, $0.00 $53, SITE REMEDIATION (10%) $89, $0.00 $89, ENVIRONMENTAL CONTROLS (5%) $44, $0.00 $44, TOTALS $1,212, $8, $1,203, Newfoundland Power Inc. July 2010

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15 Hydro Plant Decommissioning Update Page SANDY BROOK Newfoundland Power Inc. July 2010

16 Hydro Plant Decommissioning Update Page 10 Newfoundland Power Inc. July 2010

17 Hydro Plant Decommissioning Update Page 11 ESTIMATED COST OF RETIRING SANDY BROOK DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) substructure Concrete M3 $ $12, $0.00 $12, superstructure Steel M3 $ ,406 $31, $3, $27, Powerhouse crane 25 ton L.S. $1, $1, $1, $ Turbine/Generator Vert. Francis L.S. $30, $30, $5, $24, Tailrace Backfill M3 $ ,700 $54, $0.00 $54, Penstock Woodstave M2 $ ,785 $33, $0.00 $33, Steel M2 $ $2, $0.00 $2, Surge Tank Steel L.S. $30, $30, $0.00 $30, foundations Concrete M3 $ $20, $0.00 $20, Forebay Dam Earthfill M3 $ ,240 $32, $0.00 $32, spillway Concrete M3 $ $66, $0.00 $66, emergency spillway Timber M3 $ $2, $0.00 $2, Intake Concrete M3 $ $29, $2, $27, pipe Steel M3 $ $5, $0.00 $5, walkway Steel L.S. $1, $1, $0.00 $1, gatehouse Woodframe L.S. $2, $2, $0.00 $2, gate equipment L.S. $2, $2, $2, $0.00 West Lake outlet Concrete M3 $ $7, $0.00 $7, spillway/dam Earthfill M3 $ $15, $0.00 $15, walkway Timber/Steel L.S. $ $ $0.00 $ gate & lift Timber/Steel L.S. $2, $2, $0.00 $2, Cripple Back Pond Dam Timber Crib M3 $ $12, $0.00 $12, Sandy Lake Newfoundland Power Inc. July 2010

18 Hydro Plant Decommissioning Update Page 12 ESTIMATED COST OF RETIRING SANDY BROOK DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) outlet Concrete M3 $ $3, $0.00 $3, spillway/dam Earthfill M $ $6, $0.00 $6, walkway Timber/Steel L.S. $ $ $0.00 $ gate & lift Timber/Steel L.S. $2, $2, $0.00 $2, Gormans Steady Dam Timber Crib M3 $ $3, $0.00 $3, Diversion Lake Dam 'C' Timber Crib M3 $ $16, $0.00 $16, Dam 'D' Timber Crib M3 $ $7, $0.00 $7, Revegetation (selective planting) Ha. $1, $3, $0.00 $3, Substation L.S. L.S. $15, $15, $1, $13, Transmission Forebay line KM. $5, $5, $0.00 $5, Mobilization/ Demobilization L.S. $48, $48, $0.00 $48, Subtotals $504, $16, $488, Contingencies (10%) $50, $48, Environmental Assessment (8%) $40, $39, Site Remediaiton (10%) $50, $48, Engineering & Supervision (5%) $25, $24, Environmental Controls (5%) $25, $24, TOTALS $696, $16, $680, Newfoundland Power Inc. July 2010

19 Hydro Pland Decommissioning Update Page RATTLING BROOK Newfoundland Power Inc. July 2010

20 Hydro Pland Decommissioning Update Page 14 Newfoundland Power Inc. July 2010

21 Hydro Plant Decommissioning Update Page 15 ESTIMATED COST OF RETIRING RATTLING BROOK DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) concrete Install Concrete M 3 $1, $13, $0.00 $13, powerhouse crane 25 ton L.S. $1, $1, $0.00 $1, Tailrace Concrete M 3 $ $18, $0.00 $18, Backfill M 3 $ $52, $0.00 $52, Turbine/Generator Vert.Francis L.S. $27, $54, $5, $49, Penstock Steel M 2 $ ,657 $328, $0.00 $328, Steel (buried) M2 $ $15, $0.00 $15, Anchor blocks Concrete M 3 $ $17, $0.00 $17, Surge Tank Steel L.S. $72, $72, $0.00 $72, anchor blocks Concrete M 3 $ $5, $0.00 $5, Forebay Dam Earthfill M 3 $ ,867 $28, $0.00 $28, Forebay Spillway Timber/Riprap M 3 $ $3, $0.00 $3, Intake Concrete M 2 $ $11, $0.00 $11, pipe Steel M $ $5, $0.00 $5, gate equipment L.S. $2, $2, $0.00 $2, Rattling Lake Dam Earthfill M 3 $ ,500 $175, $0.00 $175, spillway Concrete M 3 $ $19, $0.00 $19, Amy's Lake Dam Earthfill M 3 $ ,867 $28, $0.00 $28, outlet Concrete M 3 $ $34, $0.00 $34, gate equipment L.S. $2, $2, $0.00 $2, Frozen Ocean Dam Earthfill M 3 $ $8, $0.00 $8, spillway Rockfill/overflow M 3 $ $2, $0.00 $2, outlet timber crib M 3 $ $4, $0.00 $4, gate equipment L.S. $2, $2, $0.00 $2, Newfoundland Power Inc. July 2010

22 Hydro Plant Decommissioning Update Page 16 ESTIMATED COST OF RETIRING RATTLING BROOK DESCRIPTION Revegetation TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Selected Planting Ha. $1, $19, $0.00 $19, Substation L.S. $24, $24, $5, $19, Transmission Forebay & Amy's Single Pole KM. $5, $20, $0.00 $20, other lines L.S. $1, $1, $0.00 $1, Mobilization/ Demobilization L.S. $36, $36, $0.00 $36, SUBTOTALS $1,007, $10, $997, CONTINGENCIES (10%) $100, $99, ENGINEERING & SUPERVISION (5%) $50, $49, ENVIRONMENTAL ASSESSMENT (6%) $60, $59, SITE REMEDIATION (10%) $100, $99, ENVIRONMENTAL CONTROLS (5%) $50, $49, TOTALS $1,370, $10, $1,360, Newfoundland Power Inc. July 2010

23 Hydro Plant Decommissioning Update Page PORT UNION Newfoundland Power Inc. July 2010

24 Hydro Plant Decommissioning Update Page 18 Newfoundland Power Inc. July 2010

25 Hydro Plant Decommissioning Update Page 19 ESTIMATED COST OF RETIRING PORT UNION DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Powerhouse Concrete L.S. $40, $40, $40, Turbine/Generator Horiz. Francis L.S. $12, $24, $0.00 $24, Penstock Woodstave M2 $ $7, $0.00 $7, $0.00 $0.00 Anchor Block Concrete M3 $ $6, $6, Intake Concrete M3 $ $8, $0.00 $8, Power Canal Gate Lift L.S. $2, $2, $0.00 $2, Excavated Earth M3 $ ,100 $21, $0.00 $21, Second Storage Pond System Rock Filled M3 $ $11, $0.00 $11, Whirl Pond Dam Modifications Timber Crib L.S. $60, $60, $0.00 $60, Gate Lift L.S. $2, $2, $0.00 $2, Spillway Modifications Concrete L.S. $18, $18, $0.00 $18, Long Pond Dam Timber Crib M3 $ $10, $0.00 $10, Gate Lift L.S. $2, $2, $0.00 $2, Wells Pond Dam Timber Crib M3 $ $10, $0.00 $10, Halfway Pond Dam Earthfill M3 $ $20, $0.00 $20, gate section Timber Crib M3 $ $6, $0.00 $6, spillway Timber Crib M3 $ $6, $0.00 $6, Revegetation Hydroseeding M2 $ $2, $0.00 $2, Newfoundland Power Inc. July 2010

26 Hydro Plant Decommissioning Update Page 20 ESTIMATED COST OF RETIRING PORT UNION DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Selected Planting Ha. $1, $1, $0.00 $1, Substation L.S. $12, $12, $5, $7, Mobilization/ Demobilization L.S. $12, $10, $0.00 $10, Subtotals $282, $5, $277, Environmental (6%) $16, $16, Contingencies (10%) $28, $27, Engineering & Supervision (5%) $14, $13, Site Remediation (10%) $28, $27, Environmental Controls (3%) $8, $8, TOTALS $378, $5, $371, Newfoundland Power Inc. July 2010

27 Hydro Plant Decommissioning Update Page LOCKSTON Newfoundland Power Inc. July 2010

28 Hydro Plant Decommissioning Update Page 22 Newfoundland Power Inc. July 2010

29 Hydro Plant Decommissioning Update Page 23 ESTIMATED COST OF RETIRING LOCKSTON DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) superstructure Concrete M3 $ $27, $0.00 $27, substructure Concrete M3 $ $9, $0.00 $9, Turbine/Generator Horiz. Francis L.S $15, $30, $3, $27, Powerhouse Crane 10 ton L.S. $1, $1, $0.00 $1, Tailrace Earth Excavation M3 $ $60, $0.00 $60, Bridges Timber L.S. $2, $4, $0.00 $4, Penstock Steel M2 $ ,920 $61, $0.00 $61, Intake Concrete M3 $ $11, $0.00 $11, Buildings Woodframe L.S. $2, $2, $0.00 $2, Power Canal Rock Excavation M3 $ ,400 $85, $0.00 $85, Rattling Pond Dam & Spillway Concrete M3 $ $8, $0.00 $8, Trinity Pond Outlet Concrete M3 $ $7, $0.00 $7, Trinity Pond Canal Earth Excavation M3 $ ,850 $18, $0.00 $18, Revegetation Selected Planting Ha $1, $3, $0.00 $3, Substation L.S. $7, $7, $2, $5, Transmission Line Single Pole KM. $5, $5, $0.00 $5, Newfoundland Power Inc. July 2010

30 Hydro Plant Decommissioning Update Page 24 ESTIMATED COST OF RETIRING LOCKSTON DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Mobilization/ Demobilization L.S. $12, $12, $0.00 $12, SUBTOTALS $354, $5, $349, CONTINGENCIES (10%) $35, $34, ENGINEERING & SUPERVISION (5%) $17, $17, ENVIRONMENTAL ASSESSMENT (6%) $21, $20, SITE REMEDIATION (10%) $35, $34, ENVIRONMENTAL CONTROLS (5%) $17, $17, TOTALS $481, $5, $475, Newfoundland Power Inc. July 2010

31 Hydro Plant Decommissioning Update Page HEART'S CONTENT Newfoundland Power Inc. July 2010

32 Hydro Plant Decommissioning Update Page 27 Newfoundland Power Inc. July 2010

33 Hydro Plant Decommissioning Update Page 28 ESTIMATED COST OF RETIRING HEART S CONTENT DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Powerhouse L.S. $55, $55, $0.00 $55, Turbine/Generator Vert-francis L.S. $25, $25, $2, $22, Powerhouse crane 15 ton. L.S $1, $1, $0.00 $1, Tailrace Earth Exc. M3 $ $1, $0.00 $1, retaining wall Concrete M3 $ $ $0.00 $ Penstock Woodstave M2 $ ,208 $38, $0.00 $38, Steel M2 $ $2, $0.00 $2, Anchor Blocks Concrete M3 $ $7, $0.00 $7, Forebay Dam & Intake Concrete M3 $ $6, $0.00 $6, gatehouse Woodframe L.S. $2, $2, $0.00 $2, gate equipment L.S $2, $0.00 $2, Power Canal Dyke Earthfill M3 $ ,820 $20, $0.00 $20, Southern Cove Pond Dam Earthfill M3 $ $4, $0.00 $4, new dam Earthfill M3 $ $10, $0.00 $10, Rocky Pond Dam Earthfill M3 $ ,000 $22, $0.00 $22, outlet Timber Crib M3 $ $2, $0.00 $2, gate equipment L.S. $2, $2, $0.00 $2, Long Pond Dam & Spillway Timber Crib M3 $ $27, $0.00 $27, gate equipment L.S. $2, $2, $0.00 $2, Seal Cove Pond Diversion Dam & Spillway Timber Crib M3 $ $39, $0.00 $39, Packs Pond Dam Earth/Rockfill M3 $ ,375 $48, $0.00 $48, Freeboard Dams Earthfill L.S. $3, $6, $0.00 $6, Hanging Hill Pond Outlet Timber Crib M3 $ $3, $0.00 $3, Revegetation hydroseeding M2 $ $1, $0.00 $1, Newfoundland Power Inc. July 2010

34 Hydro Plant Decommissioning Update Page 29 ESTIMATED COST OF RETIRING HEART S CONTENT DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) selected planting Ha $1, $3, $0.00 $3, Substation L.S. $6, $6, $2, $4, Transmission Single Pole L.S. $1, $1, $0.00 $1, Mobilization/ Demobilization L.S. $25, $25, $0.00 $25, SUBTOTALS $365, $4, $360, CONTINGENCIES (10%) $36, $36, ENGINEERING & SUPERVISION (5%) $18, $18, ENVIRONMENTAL ASSESSMENT (6%) $21, $21, SITE REMEDIATION (10%) $36, $36, ENVIRONMENTAL CONTROLS (5%) $18, $18, TOTALS $496, $4, $490, Newfoundland Power Inc. July 2010

35 Hydro Plant Decommissioning Update Page NEW CHELSEA & PITMANS POND Newfoundland Power Inc. July 2010

36 Hydro Plant Decommissioning Update Page 31 Newfoundland Power Inc. July 2010

37 Hydro Plant Decommissioning Update Page 32 ESTIMATED COST OF RETIRING NEW CHELSEA/PITTMAN'S DESCRIPTION New Chelsea Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) substructure Concrete M3 $ $37, $0.00 $37, superstructure Concrete M3 $ $24, $0.00 $24, powerhouse crane 15 ton L.S. $1, $1, $0.00 $1, Turbine/generator Vert. Francis $30, $30, $2, $28, Penstock Steel M2 $ ,982 $87, $0.00 $87, Steel (buried) M2 $ ,130 $28, $0.00 $28, Anchor Blocks and Piers Concrete M3 $ $118, $0.00 $118, Seal Cove Pond Dam Earthfill M3 $ ,224 $12, $0.00 $12, Spillway Concrete M3 $ $1, $0.00 $1, Intake Concrete M3 $ $11, $0.00 $11, Gatehouse equipment L.S. $2, $2, $0.00 $2, Gatehouse L.S $2, $2, $0.00 $2, Pitman's Powerhouse superstructure Concrete M3 $ $15, $0.00 $15, substructure Concrete M3 $ $7, $0.00 $7, Turbine/generator Horiz Francis L.S $25, $25, $ $24, Powerhouse Crane 5 ton $1, $2, $0.00 $2, Penstock Woodstave M2 $ ,660 $19, $0.00 $19, Pitmans Pond Dam Earthfill M3 $ ,911 $139, $0.00 $139, Spillway Concrete M3 $ $6, $0.00 $6, intake a Conduit Concrete M3 $ $69, $0.00 $69, Gatehouse equipment L.S. $2, $2, $0.00 $2, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Pitmans Pond West Dyke Earthfill M3 $ ,885 $18, $0.00 $18, Revegetation Newfoundland Power Inc. July 2010

38 Hydro Plant Decommissioning Update Page 33 ESTIMATED COST OF RETIRING NEW CHELSEA/PITTMAN'S DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) -Selective Planting Ha $1, $3, $0.00 $3, Pitmans Substation L.S. $6, $6, $2, $4, Pitmans Transmission Lines KM $5, $25, $0.00 $25, New Chelsea Substation L.S. $8, $8, $1, $7, Mobilization/Demobilization L.S $18, $18, $0.00 $18, SUBTOTALS $723, $5, $717, CONTINGENCIES (10%) $72, $71, ENGINEERING & SUPERVISION (5%) $36, $35, ENVIRONMENTAL ASSESSMENT (6%) $43, $43, SITE REMEDIATION (10%) $72, $71, ENVIRONMENTAL CONTROLS (5%) $36, $35, TOTALS $984, $5, $976, Newfoundland Power Inc. July 2010

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40 Hydro Plant Decommissioning Update Page VICTORIA Newfoundland Power Inc. July 2010

41 Hydro Plant Decommissioning Update Page 36 Newfoundland Power Inc. July 2010

42 Hydro Plant Decommissioning Update Page 37 ESTIMATED COST OF RETIRING VICTORIA DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Powerhouse To Be Left Intact Turbine/Generator To Be Left Intact Penstock Woodstave m2 $ ,487 $17, $0.00 $17, Steel m2 $ $5, $0.00 $5, Blue Hills Pond $0.00 $0.00 Forebay Concrete m3 $ $14, $0.00 $14, Rockfill m3 $ $2, $0.00 $2, Gate Equipment L.S. $2, $2, $2, $0.00 Rocky Pond Dam Concrete m3 $ ,230 $227, $0.00 $227, Gate Equipment L.S. $2, $2, $0.00 $2, Revegetation selective planting Ha. $1, $1, $0.00 $1, Substation L.S. $5, $5, $1, $4, Mobilization/Demobilization L.S. $12, $12, $0.00 $12, SUBTOTALS $291, $3, $288, CONTINGENCIES (10%) $29, $28, ENVIRONMENTAL (6%) $17, $17, ENGINEERING & SUPERVISION (5%) $14, $14, SITE REMEDIATION (10%) $29, $28, ENVIRONMENTAL CONTROLS (5%) $14, $14, TOTALS $396, $3, $391, Newfoundland Power Inc. July 2010

43 Hydro Plant Decommissioning Update Page SEAL COVE Newfoundland Power Inc. July 2010

44 Hydro Plant Decommissioning Update Page 39 Newfoundland Power Inc. July 2010

45 Hydro Plant Decommissioning Update Page 40 ESTIMATED COST OF RETIRING SEAL COVE DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) superstructure Concrete m3 $ $33, $0.00 $33, substructure Concrete m3 $ $27, $0.00 $27, powerhouse crane 10 ton L.S. $1, $1, $0.00 $1, Turbine/Generator Horiz.Francis L.S. $18, $36, $3, $32, Tailrace Earthfill m3 $ $5, $0.00 $5, Penstock Steel m2 $ ,179 $171, $0.00 $171, Anchor Blocks and piers Concrete m3 $ ,620 $299, $299, Intake -substructure Concrete m3 $ $9, $0.00 $9, superstructure Woodframe L.S. $2, $2, $0.00 $2, Gate equipment L.S. $2, $2, $0.00 $2, Forebay dam Concrete m3 $ $107, $0.00 $107, spillway Concrete m3 $ $5, $0.00 $5, rockfill Rockfill m3 $ ,800 $63, $0.00 $63, gabions Gabions m3 $ $3, $0.00 $3, Soldier's Pond Dam & Spillway Timber Crib m3 $ $27, $0.00 $27, outlet Timber Crib m3 $ $19, $0.00 $19, Gate equipment L.S. $2, $2, $0.00 $2, Fenelons Pond $0.00 $0.00 Dam & Outlet Earthfill m3 $ ,445 $26, $0.00 $26, Timber Crib m3 $ ,544 $76, $0.00 $76, Gate equipment L.S. $2, $2, $0.00 $2, Fenelons Pond spillway Timber Crib m3 $ $12, $0.00 $12, Big Otter Pond Dam $0.00 $0.00 Newfoundland Power Inc. July 2010

46 Hydro Plant Decommissioning Update Page 41 ESTIMATED COST OF RETIRING SEAL COVE DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Spillway & outlet modifications m3 $ $24, $0.00 $24, Other $0.00 $0.00 storage shed Woodframe L.S. $1, $1, $0.00 $1, bridges Misc. L.S. $3, $6, $0.00 $6, Revegetation Hydroseeding m2 $3.00 6,400 $19, $0.00 $19, Selected Planting Ha. $1, $1, $0.00 $1, Substation L.S. $12, $12, $0.00 $12, Transmission L.S. $3, $3, $0.00 $3, Mobilization/Demobilization L.S. $12, $12, $0.00 $12, SUBTOTALS $1,015, $3, $1,011, CONTINGENCIES (10%) $101, $101, ENVIRONMENTAL (6%) $60, $60, ENGINEERING & SUPERVISION.(5%) $50, $50, SITE REMEDIATION (10%) $101, $101, ENVIRONMENTAL CONTROLS (5%) $50, $50, TOTALS $1,381, $3, $1,376, Newfoundland Power Inc. July 2010

47

48 Hydro Plant Decommissioning Update Page TOPSAIL Newfoundland Power Inc. July 2010

49 Hydro Plant Decommissioning Update Page 44 Newfoundland Power Inc. July 2010

50 Hydro Plant Decommissioning Update Page 45 ESTIMATED COST OF RETIRING TOPSAIL DESCRIPTION Powerhouse TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) superstructure Concrete m3 $ $16, $0.00 $16, substructure Concrete m3 $ $12, $0.00 $12, Powerhouse crane 10 ton L.S. $1, $1, $0.00 $1, Turbine/Generator Horiz.Francis L.S. $18, $18, $2, $15, Tailrace Earth embankment m3 $ $5, $0.00 $5, Penstock above ground Woodstave m2 $ ,420 $65, $0.00 $65, buried Woodstave m3 $ ,000 $18, $0.00 $18, anchor block Concrete m3 $ $2, $0.00 $2, Forebay spillway Concrete m3 $1, $3, $0.00 $3, Intake substructure Concrete m3 $ $2, $0.00 $2, superstructure Woodframe L.S. $2, $2, $0.00 $2, supply and place fill Earthfill m3 $ $1, $0.00 $1, Three Island Pond Dam (repairs) Timber Crib m3 $ $30, $0.00 $30, Gate Equipment L.S $2, $2, $0.00 $2, Three Arm Pond Dam Spillway & Outlet Timber Crib m 3 $ $4, $0.00 $4, Gate Equipment L.S. $2, $2, $0.00 $2, Paddy's Pond Outlet (rebuild) Timber Crib m3 $ $12, $0.00 $12, Gate Equipment L.S. $2, $2, $0.00 $2, Paddy's Pond Dam Newfoundland Power Inc. July 2010

51 Hydro Plant Decommissioning Update Page 46 ESTIMATED COST OF RETIRING TOPSAIL DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) & Spillway repairs Timber Crib m3 $ $120, $0.00 $120, Paddys Pond Freeboard Dams Timber Crib m3 $ $16, $0.00 $16, Thomas Pond Dam Earthfill m3 $ ,382 $123, $0.00 $123, spillway Concrete m3 $ $19, $0.00 $19, outlet Concrete m3 $ $3, $0.00 $3, Gate Equipment L.S. $2, $2, $0.00 $2, Thomas Pond Canal Earthfill m3 $ ,000 $30, $0.00 $30, Revegetation selective planting Ha. $1, $1, $0.00 $1, hydroseeding m2 $ ,000 $81, $0.00 $81, Mobilization/Demobilization L.S. $12, $12, $0.00 $12, Substation L.S. $6, $6, $2, $4, Distribution L.S. $3, $3, $0.00 $3, SUBTOTALS $620, $4, $616, CONTINGENCIES (10%) $62, $61, ENGINEERING & SUPERVISION (5%) $31, $30, ENVIRONMENTAL ASSESSMENT (6%) $37, $36, SITE REMEDIATION (10%) $62, $61, ENVIRONMENTAL CONTROLS (5%) $31, $30, TOTALS $843, $4, $838, Newfoundland Power Inc. July 2010

52 Hydro Plant Decommissioning Update Page PETTY HARBOUR Newfoundland Power Inc. July 2010

53 Hydro Plant Decommissioning Update Page 48 Newfoundland Power Inc. July 2010

54 Hydro Plant Decommissioning Update Page 49 ESTIMATED COST OF RETIRING PETTY HARBOUR DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Powerhouse To Be Left Intact Turbine/Generator To Be Left Intact Powerhouse Crane 15 ton To Be Left Intact Tailrace Rock Excavation M 3 $ $8, $0.00 $8, Penstock Steel M 2 $ $148, $0.00 $148, Anchor blocks and piers Concrete M3 $ $172, $0.00 $172, Surge Tank Steel L.S. $85, $85, $0.00 $85, Penstock Trestle Structural Steel L.S. $7, $7, $0.00 $7, Forebay Dam Concrete M 3 $ ,025 $189, $0.00 $189, Gatehouse Equipment L.S. $2, $2, $0.00 $2, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Bay Bulls Big Pond Dam Modifications L.S. $12, $12, $0.00 $12, Gatehouse Equipment L.S. $2, $2, $0.00 $2, Gatehouse L.S. $2, $2, $0.00 $2, Cochrane Pond Spillway Concrete M 3 $ $11, $0.00 $11, Earthfill Replacement M 3 $ $6, $0.00 $6, Cochrane Pond Outlet Timber Crib M 3 $ $1, $0.00 $1, gate lift L.S. $2, $2, $0.00 $2, Cochrane Pond Outlet Replacement Concrete M 3 $1, $50, $0.00 $50, Substation L.S. $8, $8, $1, $7, Mobilization/Demobilization L.S. $6, $6, $0.00 $6, SUBTOTALS $718, $1, $717, CONTINGENCIES (10%) $71, $71, Newfoundland Power Inc. July 2010

55 Hydro Plant Decommissioning Update Page 50 ESTIMATED COST OF RETIRING PETTY HARBOUR DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) ENVIRONMENTAL (8%) $57, $57, ENGINEERING & SUPERVISION (5%) $35, $35, SITE REMEDIATION (10%) $71, $71, ENVIRONMENTAL CONTROLS (5%) $35, $35, TOTALS $991, $1, $989, Newfoundland Power Inc. July 2010

56 Hydro Plant Decommissioning Update Page PIERRE'S BROOK Newfoundland Power Inc. July 2010

57 Hydro Plant Decommissioning Update Page 52 Newfoundland Power Inc. July 2010

58 Hydro Plant Decommissioning Update Page 53 ESTIMATED COST OF RETIRING PIERRE'S BROOK DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Powerhouse Concrete/masonry L.S. $67, $67, $0.00 $67, powerhouse crane 25 ton L.S. $1, $1, $0.00 $1, Tailrace Earthfill M 3 $ $5, $0.00 $5, Turbine/Generator Vertical Francis L.S. $25, $25, $3, $21, Penstock Woodstave M 2 $ ,203 $170, $0.00 $170, Steel M 2 $ $7, $0.00 $7, anchors & cradles Concrete M 3 $ $ $0.00 $ Surge Tank tank & riser Steel L S. $35, $35, $0.00 $35, piers & anchor Concrete M 3 $ $9, $0.00 $9, Gull Pond Forebay Dam Earthfill M 3 $ ,170 $23, $0.00 $23, (earthfill with concrete core) Concrete M 3 $ $32, $0.00 $32, concrete core) Earthfill M 3 $ ,575 $15, $0.00 $15, Intake Concrete M 3 $ $22, $0.00 $22, gate equipment L.S. $2, $2, $0.00 $2, Gull Pond Spillway spillway Concrete M 3 $ $30, $0.00 $30, wing walls Concrete M 3 $ $27, $0.00 $27, Gull Pond Free-board dam Earthfill M $ ,436 $14, $0.00 $14, Witless Bay Country Pond Dam & Outlet Earthfill M 3 $ $9, $0.00 $9, gatehouse Woodframe L.S. $2, $2, $0.00 $2, gate equipment L.S. $2, $2, $0.00 $2, Witless Bay Country Pond Spillway Concrete M 3 $ $22, $0.00 $22, Newfoundland Power Inc. July 2010

59 Hydro Plant Decommissioning Update Page 54 ESTIMATED COST OF RETIRING PIERRE'S BROOK DESCRIPTION Witless Bay Country TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Earthfill M 3 $ ,650 $29, $0.00 $29, Diversion Canal. Earthfill M 3 $ ,150 $51, $0.00 $51, Big Country Pond Dam Earthfill M 3 $ $9, $0.00 $9, Outlet Concrete M 3 $ $55, $0.00 $55, gate equipment L.S. $2, $2, $0.00 $2, spillway Earthfill M 3 $ $1, $0.00 $1, Rocky Pond Dam Earthfill M 3 $ $1, $0.00 $1, Timber Crib M 3 $ $4, $0.00 $4, other (sheds) Woodframe L.S. $2, $4, $0.00 $4, bridge Misc. L.S. $3, $3, $0.00 $3, Revegetation hydroseeding M 2 $ $3, $0.00 $3, selected planting Ha. $1, $4, $0.00 $4, Substation L.S. $8, $8, $1, $7, Transmission Single Pole KM. $18, $90, $0.00 $90, forebay line Single Pole KM. $5, $15, $0.00 $15, Mobilization/Demobilization L.S. $10, $10, $0.00 $10, SUBTOTALS $819, $4, $814, CONTINGENCIES (10%) $81, $81, ENVIRONMENTAL (6%) $49, $48, ENGINEERING & SUPERVISION (5%) $40, $40, SITE REMEDIATION (10%) $81, $81, ENVIRONMENTAL CONTROLS (5%) $40, $40, TOTALS $1,114, $4, $1,107, Newfoundland Power Inc. July 2010

60 Hydro Plant Decommissioning Update Page MOBILE/MORRIS Newfoundland Power Inc. July 2010

61 Hydro Plant Decommissioning Update Page 56 Newfoundland Power Inc. July 2010

62 Hydro Plant Decommissioning Update Page 57 ESTIMATED COST OF RETIRING MOBILE/MORRIS DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Mobile Powerhouse Concrete (install) $1, $6, $0.00 $6, Powerhouse Crane 36 tons L.S. $3, $3, $0.00 $3, Tailrace Earth M 3 $ $1, $0.00 $1, (Backfill) Washed Stone M 3 $ $ $0.00 $ Turbine/generator Vert. Francis L.S. $34, $34, $5, $29, Penstock Steel M 2 $ ,037 $63, $0.00 $63, FRP (buried) M 2 $ ,008 $224, $0.00 $224, Surge Tank Steel L S. $50, $50, $0.00 $50, Surge Tank ( foundations) Concrete M3 $ $10, $0.00 $10, Pipeline Thrust Blocks Concrete M3 $ $15, $0.00 $15, Forebay Dam Earth M 3 $ ,290 $12, $0.00 $12, Forebay Dam Intake Concrete M3 $ $15, $0.00 $15, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Gatehouse Equipment L.S. $2, $2, $0.00 $2, Mobile Power Canal Earthfill M 3 $ ,517 $115, $0.00 $115, Canal Stoplog Structure Concrete M 3 $ $1, $0.00 $1, Mobile First Pond Spillway Concrete M 3 $ $43, $0.00 $43, Morris Spawning Canal Earth M 3 $ ,000 $20, $0.00 $20, Spawning Canal Control Structure Concrete M 3 $ $ $0.00 $ Mobile Powerhouse Substructure Concrete M 3 $ $18, $0.00 $18, Powerhouse bldg Pre-eng. metal L.S. $10, $10, $7, $2, Turbine/generator Horiz francis L.S. $17, $17, $1, $15, Penstock FRP (buried) M 2 $ ,037 $25, $0.00 $25, Intake structure Concrete M 3 $ $11, $0.00 $11, Gatehouse Equipment L.S. $2, $2, $0.00 $2, Gatehouse L.S. $2, $2, $0.00 $2, Newfoundland Power Inc. July 2010

63 Hydro Plant Decommissioning Update Page 58 ESTIMATED COST OF RETIRING MOBILE/MORRIS DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Morris Canal Earthfill M 3 $ ,000 $300, $0.00 $300, Canal stoplog structure Concrete M 3 $ $3, $0.00 $3, Diversion Spillway Concrete M 3 $ $2, $0.00 $2, Mobile Big Pond Dam Earthfill M 3 $ ,431 $124, $0.00 $124, Mobile Big Pond Intake Concrete M 3 $ $3, $0.00 $3, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Gatehouse Equipment L.S. $2, $2, $0.00 $2, Mobile Big Pond Spillway Concrete M 3 $ $2, $0.00 $2, Selective Planting Ha. $1, $7, $0.00 $7, Mobile Substation L.S. $10, $10, $2, $8, Mobile forebay line Single Pole KM. $5, $10, $0.00 $10, Morris Forebay line Single Pole KM $5, $5, $0.00 $5, Transmission line Single Pole KM. $18, $90, $0.00 $90, Morris Substation L.S. $15, $15, $20, ($5,000.00) Mobilization/ Demobilization L.S. $12, $12, $0.00 $12, SUBTOTALS $1,299, $35, $1,263, CONTINGENCIES (10%) $129, $126, ENVIRONMENTAL (5%) $64, $63, ENGINEERING SUPERVISION (5%) $64, $63, SITE REMEDIATION (10%) $129, $126, ENVIRONMENTAL CONTROLS (5%) $64, $63, TOTALS $1,754, $35, $1,706, Newfoundland Power Inc. July 2010

64 Hydro Plant Decommissioning Update Page TORS COVE/ROCKY POND Newfoundland Power Inc. July 2010

65 Hydro Plant Decommissioning Update Page 60 Newfoundland Power Inc. July 2010

66 Hydro Plant Decommissioning Update Page 61 ESTIMATED COST OF RETIRING TORS COVE/ROCKY POND DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Tors Cove Powerhouse Concrete M 3 $ $59, $0.00 $59, powerhouse crane 15 ton L.S. $1, $1, $0.00 $1, Turbine/Generator Horiz Francis L.S. $16, $48, $4, $44, Tailrace Concrete M 3 $1, $4, $0.00 $4, Penstock Woodstave M 2 $ ,958 $71, $0.00 $71, Surge Tank Steel L. S. $35, $35, $0.00 $35, foundations Concrete M 3 $ $9, $0.00 $9, Anchor Blocks Concrete M 3 $ $11, $0.00 $11, East Dam Backfill M 3 $ $3, $0.00 $3, Concrete M 3 $1, $5, $0.00 $5, Tors Cove Pond Dam Reconstruction Earthfill L.S. $30, $30, $0.00 $30, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, gate equipment L.S. $2, $2, $0.00 $2, Rocky Pond Powerhouse Concrete M 3 $ $24, $0.00 $24, powerhouse crane 16.5 ton L.S. $1, $1, $0.00 $1, Tailrace Earthfill M 3 $ $4, $0.00 $4, Turbine/generator Horiz-Francis L.S $25, $25, $2, $23, Penstock Steel M 2 $ ,400 $113, $0.00 $113, Rocky Pond Dam Earthfill M 3 $ ,575 $55, $0.00 $55, spillway Concrete M 3 $ $10, $0.00 $10, intake Concrete M 3 $ $24, $0.00 $24, Gatehouse L.S. $2, $2, $0.00 $2, Gatehouse equipment L.S. $2, $2, $0.00 $2, Rocky Pond freeboard dams (3) Earthfill L.S. $ ,000 $10, $0.00 $10, Long Pond/Middle Pond structure Concrete M 3 $ $4, $0.00 $4, Gatehouoe Woodframe L.S. $2, $2, $0.00 $2, Long Pond Spillway Dam Earthfill M 3 $ $9, $0.00 $9, Lamanche Canal Spillways (6) Timber Crib L.S. $3, $18, $0.00 $18, Newfoundland Power Inc. July 2010

67 Hydro Plant Decommissioning Update Page 62 ESTIMATED COST OF RETIRING TORS COVE/ROCKY POND DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) Butlers Spillway Timber Crib M 3 $ $8, $0.00 $8, Lamanche Canal Earthfill M 3 $ ,493 $124, $0.00 $124, Butlers Pond Dam Timber Crib M 3 $ ,000 $30, $0.00 $30, Cluneys Downstream Spillway Timber Crib M 3 $ $3, $0.00 $3, Cluney's Weir Concrete M 3 $ $7, $0.00 $7, Cluney's Control Structure Concrete M 3 $ $2, $0.00 $2, Gabions M 3 $ $1, $0.00 $1, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Cluney's upstream spillway Earthfill M 3 $ $9, $0.00 $9, Cluney's Diversion Dam Earthfill M 3 $ ,300 $14, $0.00 $14, Cluney's Canal Earthfill M 3 $ ,254 $82, $0.00 $82, Cape Pond Dam Earthfill M 3 $ ,500 $145, $0.00 $145, spillway Concrete M 3 $ $71, $0.00 $71, gate equipment L.S. $2, $2, $0.00 $2, Saunders Pond Dam Timber Crib M 3 $ $5, $0.00 $5, Saunders Pond Spillway Timber Crib M 3 $ $2, $0.00 $2, Frank's Pond Storage Dam Earthfill M 3 $ ,929 $19, $0.00 $19, Frank's Pond Intake Concrete M 3 $ $6, $0.00 $6, Gatehouse Woodframe L.S. $2, $2, $0.00 $2, Gatehouse equipment L.S. $2, $2, $2, $0.00 Franks Pond No. 7 Dam Earthfill M 3 $ $4, $0.00 $4, No. 6 Dam Earthfill M 3 $ $3, $0.00 $3, No. 5 Dam Earthfill M 3 $ $9, $0.00 $9, No. 4 Dam Earth Encased M 3 $ $9, $0.00 $9, No. 3 Dam Earth Encased M 3 $ $4, $0.00 $4, Newfoundland Power Inc. July 2010

68 Hydro Plant Decommissioning Update Page 63 ESTIMATED COST OF RETIRING TORS COVE/ROCKY POND DESCRIPTION TYPE UNIT UNIT COST ($) ESTIMATED QUANTITY ESTIMATED COST ($) SALVAGE VALUE ($) TOTAL COST ($) No. 2 Dam Earthfill M $ $1, $0.00 $1, No. 1 Dam Vertical Wood L.S. $1, $1, $0.00 $1, Frank's Pond Canal Earthfill M 3 $ ,664 $56, $0.00 $56, Revegetation $0.00 Selective Planting Ha. $1, $12, $0.00 $12, Transmission Lines Tore Cove Single Pole KM. $18, $90, $0.00 $90, Tore Cove Forebay Line Single Pole KM $5, $5, $0.00 $5, Rocky Pond Single Pole KM. $18, $18, $0.00 $18, Rocky Pond Forebay Line Single Pole KM. $5, $5, $0.00 $5, Substation Tore Cove L.S. $7, $7, $18, ($11,258.00) Rocky Pond L.S. $7, $7, $2, $5, Mobilization/ Demobilization L.S. $50, $50, $0.00 $50, SUBTOTALS $1,416, $28, $1,387, CONTINGENCIES (10%) $141, $138, ENVIRONMENTAL (10%) $141, $138, ENGINEERING & SUPERVISION (5%) $70, $69, SITE REMEDIATION (8%) $113, $111, ENVIRONMENTAL CONTROLS (5%) $70, $69, TOTALS $1,954, $28, $1,915, Newfoundland Power Inc. July 2010

69 Hydro Plant Decommissioning Update Page CAPE BROYLE/HORSE CHOPS Newfoundland Power Inc. July 2010