Greenland Smelter Site Selection Study by jde13576

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									Project Overview

Greg Ott, Director, Hydro and Smelter Development, Alcoa
      Presentation Agenda

 Project description
   smelter
   port
   hydroelectric facilities
   transmission lines and roads
 Project employment
 Update on engineering studies
       Project Description - Smelter
 Maniitsoq Island                                               Draft conceptual site plan


 Approximately 360,000 tons per year          Workcamp


 About 100 hectares (300 football
  fields)                                        Port

 Construction workcamp near smelter
                                                                                  Smelter



 Site access
                                                        Access
    11-km long access road, several                     Road

     alignments will be studied in 2009 (one
     option includes bridge across Ataa
     inlet)
    Possible ferry access for construction
     workers until road is constructed
           Project Description - Port
 Located adjacent to smelter site
 Port includes both permanent and
    construction wharfs
   Permanent wharf
      500 m long
      Two ships up to 240 m long, 14 m draft
      No dredging required
      Some rock cuts for storage and
        operations areas
 Construction wharf
      in cove north of the permanent wharf
        Project Description - Hydro
 North Development at
    Tasersiaq
      Maximum predicted power
       capacity = 475 MW
   South Development at
    Imarsuup Isua
      Maximum predicted power
       capacity = 175 MW
   Both developments will
    include dams, tunnels, and
    an underground powerhouse
           North (Tasersiaq) Hydro Development
 Will raise the water level of Lake
    Tasersiaq by 24 meters
   Will flow into the Sarfartoq River
    upstream of its confluence with the
    Arnangarngup kua River
   Reservoir area = 190 km2
                                            Lake Tasersiaq




      Sarfartoq River                     Arnangarngup kua River
         North (Tasersiaq) Hydro Development
 Two dams, tallest of which will be 37 meters above ground level:
     Located at the existing outflow of Lake Tasersiaq to the
       Sarfartoq River
      Located northwest of the entrance to the headrace tunnel
   30 km long tunnel will convey water from the reservoir to the
    powerhouse
   1 km long tunnel will convey water from the powerhouse to the
    outlet at Evighedsfjord
   Road vs. helicopter access will be evaluated in 2009
   Two construction workcamps, operations housing potentially
    provided at powerhouse
       South (Imarsuup Isua) Hydro Development
 Network that will link six natural lakes
    in the headwaters of the Igassup kua
    River
       Six dams, four canals, and two
         diversion tunnels
   The only named lake is Tuvssap tasia
    – this will form the downstream
    reservoir
   The largest lake will be the main
    reservoir and Tuvssap tasia will
    provide additional storage
   The project will raise the elevation of   Glacial and non-glacial lakes in the
    the largest lake by 8 meters and the
    farthest downstream lake by 13 meters     Imarsuup Issua hydro development




      Lake near downstream terminus of the     Largest lake in the Imarsuup Issua hydro
      Imarsuup Issua reservoir system          development reservoir system
       South (Imarsuup Isua) Hydro Development
 Flow will be diverted to
    Godthabsfjord
   Reservoir area = 95 km2
   The 10 km long tunnel will convey
    water from the reservoir to the
    powerhouse
   The 3 km long tunnel will convey
    water from the powerhouse to the
    outlet at Godthabsfjord
   The tallest of 6 dams will be 32
    meters tall
   Archaeological ruins will be
    considered in 09 design work
   Road access
   Four construction workcamps,
    operations housing potentially
    provided at powerhouse
      Project Description – Transmission Lines
 Preliminary routing for
    transmission lines completed in
    2008
      Field work summer 08
      Greenland experts provided data
       on prevailing winds, weather
       conditions, hunting/fishing use,
       tourism use etc.
 Approximate height of
    transmission lines = 10-15 meters
   Typical tower height = 20-35
    meters
   The taller towers near Maniitsoq
    are 75-105 meters tall, with
    transmission lines ~ 50 meters
    above the water
   Road vs. helicopter access will be
    evaluated in 2009
         Project Employment

 Construction
    Hydro and transmission lines (Years 2010-2015)
      • up to 630 workers, peak in 2013 and 2014
      • Available local workers will get first consideration
    Smelter and port (Years 2013-2015)
       • 875 – 1,650 workers, peak in 2014
       • Available local workers will get first consideration




 Please visit us at the information tables during the open house
 session for more information
         Project Employment


 Operation
   Hydro and transmission lines (Years 2016 +)
     • 50 employees: long term stable employment
   Smelter and port (Years 2016 +)
     • 425 employees: long term stable employment


   Objective is 100% Greenland nationals
     •   Men and women welcome
     •   18 years old and older
     •   No upper age limit
     •   Project will train to provide skills necessary
     •   Requires secondary school education: math and literacy
     • Will seek to employ handicapped in appropriate types of work
        Project Updates
 Highlights from 2008 Studies
    Smelter
      • Rock core drilling data available late January
      • Confirmed the potential of the site and concept layout
    Port
      • Site is viable for approach, turning and anchoring large alumina vessels.
    Hydro
      • Rock Structure and Permafrost Study – permafrost monitoring ongoing via satellite
      • Rock Joint Mapping
      • Geotechnical borings
      • Sub-glacial topography – preliminary results February 2009
    Transmission Lines and Roads
      • Preliminary routing for transmission line completed in 2008
      • Preliminary road alignments developed for smelter and south hydro in 2008,
         several road alignments considered

Please visit us at the information tables during the open house session
          Project Updates
 2009 Activities
     Smelter
       • Detailed geotechnical plan based on 2008 rock core data
     Port
       • Port and wharf design
       • Sub-marine rock core sampling
       • Wave study to confirm port availability and capacity
     Hydro
       • Rock / permafrost borings
       • Dam material source study
       • Lake temperature monitoring
       • Infrastructure - ports, roads
       • Transmission line routing
     Transmission Lines and Roads
        • Detailed studies for transmission line and road alignments – environmental, social,
          engineering


Please visit us at the information tables during the open house session

								
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