WIND
ENERGY AND THE ENVIRONMENT
Environmentally Clean, No Emissions
Wind energy is clean energy. No emissions means it doesn't contribute
to acid rain and snow, global climate change, smog, regional haze,
mercury contamination, water withdrawal, and particulate-related
health effects. Wind energy offsets the toxic emissions and profound
impacts on air, water and land from fossil fuel energy generation.
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No Water Consumption
The only water required for wind generation is for periodic cleaning
of the turbine blades. A typical 500-megawatt coal plan uses 2.2
billion gallons of water each year. (Source: Union of Concerned
Scientists)
Using fossil fuels -- coal, oil and natural gas -- to make electricity
dirties the nation's air, consumes and pollutes water, hurts plants
and animal life, creates toxic wastes, and causes global warming.
Energy production and use have profound impacts on air, water
and land.
- A typical 500-megawatt coal plant produces 3.5 billion kilowatt-hours
per year -- enough to power a city of about 140,000 people.
It burns 1.4 million tons of coal (the equivalent of 40 train
cars of coal each day) and In an average year, this one plant
also generates the following: (Source: Union of Concerned Scientists)
- 10,000 tons of sulfur dioxide
- 10,200 tons of nitrogen oxide, equivalent to half a million
late-model cars -
- 3.7 million tons of carbon dioxide, equivalent to cutting
down 100 million trees
- 500 tons of small particles
- 220 tons of hydrocarbons
- 720 tons of carbon monoxide
- 125,000 tons of ash and 193,000 tons of sludge from the smokestack
scrubber
- 170 pounds of mercury, 225 pounds of arsenic, 114 pounds of
lead, 4 pounds of cadmium, and other toxic heavy metals
- Trace amounts of uranium
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Avian monitoring at Sunshine Wind Park site. |
Avian and Biological Impact
Over the last 20 years, the wind industry has made giant strides
toward better understanding the biological impacts of wind farms
and specifically their potential impacts on birds and bats. Today's
wind farms are sited to avoid especially sensitive areas and migratory
bird flyways. Modern turbines and carefully designed wind farm
layouts minimize biological impacts. Like any large construction
project, wind farms will inevitably have some biological impacts,
but the impacts of a wind farm represent a very small percentage
of human-caused avian and bat mortalities, and are minimal relative
to traditional energy plants such as coal, natural gas, and nuclear
power plants.
- Foresight
is committed to developing wind power projects that have minimal
impacts on the local environment, including birds and bats.
Foresight pursues this objective by avoiding sensitive habitats
and by working to site projects in ecosystems with relatively
low biological diversity. Foresight is also committed to better
understanding the biological impacts of wind farms and continuing
to improve industry best practices to reduce already low impacts
further.
- Foresight carries out biological assessments of every potential
site under consideration to confirm site suitability, better
understand potential impacts, and to develop strategies to mitigate
any potential negative impacts. Once a wind project is operational,
Foresight requires biological monitoring as part of wind project
operations. In conjunction with these monitoring activities,
Foresight forms a Technical Advisory Committee on biological
issues for every wind power project to review the results of
these monitoring activities and provide expert input and recommendations
to interpreting new data and answering any questions or problems
that might arise.
According to a new report released in September 2005 by the
Government Accountability Office (GAO) on the possible impacts
of wind energy development on wildlife, many fewer birds fly
into wind turbines than is generally thought, and more research
is needed to assess the possible impacts of wind turbines on
both birds and bats. Although several hundred utility-scale
wind farms currently operate across the U.S. such problems remain
limited to two project areas, according to the report. "In the
context of other sources of avian [mortality], it does not appear
that wind power is responsible for a significant number of bird
deaths," the report states in its conclusion. Online copies
of the report are available on the GAO Web site at http://www.gao.gov/new.items/d05906.pdf.
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Use of Materials
- A modern wind turbine will typically generate enough electricity
in its first year of operation to offset the energy used to
smelt and manufacture its components and erect the turbine.
The remainder of its operational life offsets the impacts of
electrical generation from other, less sustainable and more
polluting forms of generation.
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