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Georgia Wind Working Group

Georgia’s Off-shore Wind Opportunities Presented by Bill Bulpitt and Rita Kilpatrick for Tybee Island City Council March 27, 2008. Georgia Wind Working Group. The Georgia Wind Working Group formed in 2005 through a partnership involving: - Southern Alliance for Clean Energy

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Georgia Wind Working Group

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  1. Georgia’s Off-shore Wind Opportunities Presented by Bill Bulpitt and Rita Kilpatrickfor Tybee Island City CouncilMarch 27, 2008

  2. Georgia Wind Working Group The Georgia Wind Working Group formed in 2005 through a partnership involving: - Southern Alliance for Clean Energy - Georgia Tech’s Strategic Energy Institute - Georgia Environmental Facilities Authority The Group consists of people representing utility companies, wind developers, government agencies, universities, and non-profit organizations. GEORGIA WIND WORKING GROUP

  3. Georgia Offshore Wind Maps 50-M above Sea Level 90-M above Sea Level Class 4 Class 5 Class 4 Class 3 Class 3 Source: AWS Truewind, 2006

  4. Off-Shore Wind Resourcein Georgia Site specific data: • 50 m high anemometer • Online since June 1999 (nearly 7 years) • 27 m deep water, ` 60 km offshore • 6-minute data averages Source: Southern Winds Project

  5. Southern Winds Off-shore Project Preliminary Findings: Wind resource warrants further review 20 year levelized cost: 50-160 MW scale: $.08-$.12/kwhr No “show stopper” environmental issues Coastal community acceptance important • By Southern Company and Georgia Tech • Began July 1, 2005 • To study viability of wind power generation off the Georgia coast

  6. Simulated View of a Wind Farm (10MW) 10.2 Miles South Southeast of Tybee Source: Southern Winds Project

  7. US Projects ProposedProp Hull Municipal Buzzards Bay Cape Wind Associates Winergy LIPA & FPL New Jersey Delaware No projects installed in US yet Atlantic Ocean Southern Company W.E.S.T. LLC Gulf of Mexico Superior Renewable

  8. Benefits of Off-shore Wind Proximity to load centers Lower transmission constraints Serve high cost regions Uses indigenous energy Avoids size limits • Better wind resources • Reduced turbulence –steadier wind • Higher wind = better energy production • Higher capacity factors –load matching • Minimize visual impacts with greater distances GEORGIA WIND WORKING GROUP Courtesy Walt Musial: NREL

  9. Off-shore Wind Regulation Pending(beyond 3 nautical miles from shore) Environmental considerations include: Bird migratory pathways Habitats – marine, fisheries, avian Natural reefs and other aquatic life • Minerals Management Service is establishing permitting rules • Will require full environmental review for wind farms and cabling pathway • Multiple federal and state governing authorities apply GEORGIA WIND WORKING GROUP

  10. Next Steps for Utilities andWind Developers • Track federal rulemaking process • Install a meteorological tower for wind site specific resource assessment • Plan wind farm projects where communities are supportive • Participate in competitive process for lease site Photo Courtesy: NREL Georgia Wind Working Group

  11. The Georgia Wind Working GroupMission Promotes the responsible development and use of wind energy by facilitating stakeholder collaborations, assisting with resource assessments, and enhancing public understanding of the benefits and impacts of wind energy. Georgia Wind Working Group

  12. Georgia Wind Working Group Provides general public education Provides technical outreach and targeted stakeholder outreach Hosts wind workshops Develops state specific literature Provides presentations at key events GEORGIA WIND WORKING GROUP

  13. The Georgia Wind Working Grouplooks forward to working with theCity of Tybee Island and others to explore wind energy opportunities. Photo Courtesy: Georgia Tech SEI Georgia Wind Working Group

  14. Additional Background on Existing Off-shore Wind Farms

  15. Arklow Courtesy: Georgia Tech SEI

  16. Project Statistics • Turbines 3.6MW x 7 • Depth of piles 35-45m • Weight of piles 280tonne (5m diameter) • Weight of turbines 290tonne • Blades 50.5m, 15tonne each • Nacelle/Hub height 73.5M • Rotational speed 8.5 – 15 rpm • Distance offshore 10km • Onshore cable 5km • Voltage 38kV distribution connected • Rotor diameter 104m > soccer pitch area • 25MW serves 16,000 households (Irish) • Sandbank 24 miles long & 2.5 wide, depths 3 -20 m • Largest commercially operating turbines installed to date • Largest consented offshore site to date Source: McAdam

  17. Scroby Sands Courtesy: Georgia Tech SEI

  18. Scroby Sands Country: United KingdomLocation: East Anglian Coast, 3km east of Great YarmouthTotal Capacity: 60 MWNumber of Turbines: 30Distance to Shore: 2.5 kmDepth: 4-8 mCapital Costs: about 110 million EuroStatus: BuiltConstruction Date: 2003Manufacturer: VestasTotal Capacity: 2 MWTurbine-type: V80 - 80m diameter/ 60m hubheightMean Windspeed: 7.5 m/s Windfarm Developer: E.ON UK

  19. Horns Rev Courtesy: Georgia Tech SEI

  20. Horns Rev Country: DenmarkLocation: West CoastTotal Capacity: 160 MWNumber of Turbines: 80Distance to Shore: 14-20 kmDepth: 6-12 mCapital Costs: 270 million EuroStatus: Operational Construction Date: 2002 Manufacturer: VestasTotal Capacity: 2 MWTurbine-type: V80 - 80m diameter / 70m hubheightMean Windspeed: 9.7 m/sAnnual Energy output: 600 GWhWindfarm Developer: Elsam http://www.hornsrev.dk/Engelsk/default_ie.htm

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