Georgia’s Off-shore Wind Opportunities
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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

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


Georgia wind working group

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


Georgia offshore wind maps

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


Off shore wind resource in georgia

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


Southern winds off shore project

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


Simulated view of a wind farm 10mw 10 2 miles south southeast of tybee

Simulated View of a Wind Farm (10MW) 10.2 Miles South Southeast of Tybee

Source: Southern Winds Project


Georgia wind working group

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


Benefits of off shore wind

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


Off shore wind regulation pending beyond 3 nautical miles from shore

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


Next steps for utilities and wind developers

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


The georgia wind working group mission

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


Georgia wind working group1

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


Georgia wind working group

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


Georgia wind working group

Additional Background on Existing Off-shore Wind Farms


Georgia wind working group

Arklow

Courtesy: Georgia Tech SEI


Georgia wind working group

Project Statistics

  • Turbines3.6MW x 7

  • Depth of piles35-45m

  • Weight of piles280tonne (5m diameter)

  • Weight of turbines290tonne

  • Blades50.5m, 15tonne each

  • Nacelle/Hub height73.5M

  • Rotational speed8.5 – 15 rpm

  • Distance offshore 10km

  • Onshore cable5km

  • 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


Georgia wind working group

Scroby Sands

Courtesy: Georgia Tech SEI


Georgia wind working group

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


Georgia wind working group

Horns Rev

Courtesy: Georgia Tech SEI


Georgia wind working group

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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