Presentation is loading. Please wait.

Presentation is loading. Please wait.

EAST TOBA & MONTROSE HYDROELECTRIC PROJECT. 2 Toba Site Toba Inlet East Toba Powerhouse Montrose Powerhouse Project Overview Transmission Line.

Similar presentations


Presentation on theme: "EAST TOBA & MONTROSE HYDROELECTRIC PROJECT. 2 Toba Site Toba Inlet East Toba Powerhouse Montrose Powerhouse Project Overview Transmission Line."— Presentation transcript:

1 EAST TOBA & MONTROSE HYDROELECTRIC PROJECT

2 2 Toba Site Toba Inlet East Toba Powerhouse Montrose Powerhouse Project Overview Transmission Line

3 3 Toba Site Project Overview

4 4 Environment Installed capacity of the two projects will be 196 MW with expected average energy generation of 745 GW.h/yr. These projects will have the potential to produce enough electricity for 75,000 homes will potentially displace an estimated 455,000 tonnes of greenhouse gases annually. This is the equivalent of taking 80,000 cars off the road per year or planting 60,000 hectares of trees.

5 5 Environment Environmental Involvement/Challenges: –High priority for key stakeholders (Owner, Agencies, First Nations, Local Communities) –Operational Challenges –Camp Waste, Batch Plant Operations, Fuel / Oil Storage –Species at Risk –goats, grizzly bears, Northern Goshawks, Marbeled Murrelets, Fish and amphibians

6 6 Schedule

7 Construction Overview Access Roads Total access road length:65.0 km Access road completion to date:62.0 km Bridge completions:52 of 58 7

8 8 East Toba Powerhouse Construction Overview Excavation volume:62,500 m 3 Concrete volume: 7,900 m 3 Excavation to date:38,995 m 3

9 9 East Toba Penstock Construction Overview Weholite Pipe Section Steel Pipe Section Penstock length: 5,376 m Estimated cut:354,000 m 3 Estimated fill:114,000 m 3 Weholite pipe section:650 m, 3,048 mm ID Total sections:49 pieces Steel pipe section: 4,726 m Outer diameter:2,540 mm – 3,048 mm Thickness:9.7mm – 36.6mm Total sections:299 pieces To date excavation:66,500 m 3

10 10 East Toba Intake Project Overview Intake 3 m high Rubber Dam Rubber dam design Intake structure: Structural excavation:21,000 m 3 Structural backfill:24,000 m 3 Concrete volume: 2,080 m 3 Diversion channel: Excavation:30,000 m 3 Fill:17,000 m 3 Rip rap:14,000 m 3 Liner:15,000 m 2 Diversion Channel Earthworks

11 11 Montrose Powerhouse Project Overview Excavation volume:45,000 m 3 Concrete: 5,800 m 3 Excavation to date:31,300 m 3

12 12 Montrose Penstock Project Overview Penstock length: 4,232 m Estimated cut:342,000 m 3 Estimated fill:109,000 m 3 Exposed penstock:250 m Slope:120 % Steel pipe section: 4,232 m Outer diameter:2133 mm – 2743 mm Wall thickness:8.6 mm – 24.9 mm Total welds:3,900 kg Total sections:247 pieces To date excavation:100,000 m 3 Typical Exposed Penstock and Support

13 13 Montrose Intake Project Overview Coanda Screen Design Structural excavation:10,500 m 3 Structural backfill:10,300 m 3 Concrete Volume: 2,680 m 3 Geotechnical surveyors at Intake

14 14 Construction Overview Mechanical Components 1 Bifurcation pipe per powerhouse 2 Turbine inlet valves (TIV) per powerhouse 2 6 nozzle scroll cases per power house 2 vertical pelton turbines per powerhouse East Toba: MW max. rated capacity (each unit) Head: m Montrose: MW max. rated capacity (each unit) Head: m Bifurcation Pipe TIV’s and Scroll Cases Installation of Mechanical Components

15 15 Project Overview Transmission Line Total length:156.8 km Total structures:760 ea. Excavation to date:309 ea. Poles installed:185 ea. Conductors installed:4 km

16 16 Project Overview Transmission Line : Types of structures Metal Structure Wooden Structures Anchors

17 17 Equipment Excavators: Cat ea Cat ea Cat ea JD ea Cat ea Dozers: D9 2 ea D8 2 ea D6 1 ea Rock Trucks: Volvo A40 7 ea Cat ea Major Equipment

18 Equipment 18 Drills: Tamrock 8004 ea Hoe Drill3 ea Loaders: Cat 9881 ea Cat 9802 ea Cat 9661 ea Cat 9502 ea Crusher/Batch Plants Portable1 ea Track Jaw1 ea Batch Plants2 ea Major Equipment


Download ppt "EAST TOBA & MONTROSE HYDROELECTRIC PROJECT. 2 Toba Site Toba Inlet East Toba Powerhouse Montrose Powerhouse Project Overview Transmission Line."

Similar presentations


Ads by Google