Wind Farms in Tasmania

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Wind Farms in Tasmania
Unleashing Australias Renewable Energy
Harnessing the Roaring 40s
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Locations
Woolnorth
Musselroe
Heemskirk
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Size
Blades 33m Tower 66m
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How wind turbines are made
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How it Works
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What else is involved
Typical elements of a wind farm include

• Access roads, fences and other associated
  infrastructure

• A control room and other buildings such a
  maintenance workshops

• Wind turbines place on towers at a suitable
  height to generate electricity

• An electrical substation located adjacent to the
  wind turbines

• Underground cables from the wind turbines to a
  substation

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Where does wind energy come from?

• Solar energy

• Unequal heating

• Warm air rises

• Replacement of cooler dense air

• Circulation causes wind

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Siting a wind farm

• Clear of obstruction

• Smooth, high hilltop

• Exposure to prevailing winds

• Smooth airflow

• Appropriate wind impact assessments

• Easy access

• Council approval

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Environmental Impacts
Positive Impacts
Negative Impacts

• Reduction of fossil fuels and CO2 emissions

• Visual impact

• Bird migration

• Therefore, reduction in greenhouse gas emissions

• Native vegetation and biodiversity

• Renewable Energy

• Minimal noise impact

• Minimal land use

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Environmental Impacts PROS
What causes greenhouse emissions

• Thermal Power

Oil

• Generation of electricity by burning fossil
  fuels

Gas
Coal

• Releases CO2

• Non-renewable source of energy

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Environmental Impacts PROS
Reduction in greenhouse emissions

• The most economically feasible replacement for
  fossil fuels

• Wind is renewable

• Wind farms do not emit any pollutants

• Helps Australia reduce dependence on greenhouse
  intensive fossil-fuel-fired energy production

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Environmental Impacts PROS
Minimal noise

• Wind farms are sited in remote areas

Minimal land use

• Wind farms do not frighten livestock

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Artwork
or
Eyesore?
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Environmental Impacts CONS
Visual impact
What is seen as aesthetic?
Visual assessment needs

• visibility

• local communities

• proximity

• landscape

• significance

Do wind farms effect property value?
Tourism?
How big is big?
Not in my backyard!!!!!
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Environmental Impacts CONS
Bird Migration

• Careless removal or disturbance of native
  vegetation

• Migrating flight path

Native Vegetation and Biodiversity

• Land disturbance

• Other typical elements of wind farms

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Environmental Impacts
Other issues

• Aboriginal and European cultural heritage

• Shadow flicker

• Blade glint

BY SABINE BAILLY

• Electromagnetic interference

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Efficiency
Tasmanian and Australian potential

Tasmania

• Tasmania has the potential to build at least
  1000MW of wind generation systems by 2010,
  offering close to 30 of Australias renewable
  energy target. (greenhouse reduction)

• Wind generation in Tasmania is far more efficient
  than mainland, because the wind is stronger and
  more consistent. Tasmanian wind farms have 40
  efficiency compared with approximately 32
  elsewhere

Australia

• Wind industry groups have claimed that
  approximately 2035 MW of power will be installed
  by 2010 in Australia, if all of the projected
  sites are completed by target time.

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Efficiency
How much electricity does one wind turbine
produce? One 600 kilowatt wind turbine at a
reasonable site could produce enough electricity
to meet the annual needs of 375 households.
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Efficiency

• Our three wind farms
• When fully developed, our first three wind farms
  in Tasmania will generate about 1500 MW hours of
  clean renewable energy each year. If this amount
  of energy displaces the equivalent amount
  currently generated by fossil fuels, it would be
  the same as taking around 300000 cars off our
  roads.
• Woolnorth Total capacity - 130MW.
• Musselroe Total capacity - 150MW
• Heemskirk Total capacity - 160MW

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Efficiency

• Future Efficiency
• Falling installation costs (at what the industry
  says is 5 a year) will eventually cause wind
  power to grow in efficiency, dramatically
  boosting its position after 2010
• Wind energy ranks 12th in efficiency behind
  renewable technologies such as hydro-electricity
  and biomass.
• By 2020, wind will be 3rd place in efficiency
  still behind the large hydro electricity schemes
  and biomass.

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Interesting Efficiency facts

• World Potential

• Energy Ranking

• Huxley Hill

• Worlds largest wind farm

• Denmark

BY NIKKI GRIFFIN