Transcript WIND POWER - yayscienceclass

Period 5 – April, Vance, Justin, David
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Man has been using this method for at least 5,500 years
now. Professor James Blyth started wind power
experiments in a UK patent in 1891. In the US Charles F.
Brush produced electricity using wind powered machines
in 1887-1888, thus powering his home and laboratory
until 1900. In 1890s Danish scientist, Poul la Cour
constructed wind turbines to generate electricity, which
were then used to produce hydrogen. Throughout USSR in
1931, smaller turbines were being distributed around
several locations to create larger experimental amounts.
Then in 1941, Vermont, a 1.25 megawatt experimental
unit was created. In 1970s US industries teamed up with
NASA to research more on wind turbines. 20-30kW was
the first of the major capacity turbines. Then larger
versions called the E-126 were capable of producing 7MW.
These became well known turbines. All these products
were produced in Danish manufacturers.
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We use wind power for irrigating water from underground water ways,
producing electricity, drainage, and powering sails on sailboats. How we
use this power is pumping water, generating electricity, and propelling
ships across the sea. How it is used around the world is for the same
reasons. For heating homes, powering a light bulb, and pushing ships
across vast oceans to find new lands. Most of the turbines are built near
coasts and great planes, turbines being faced in many directions
because the wind is strong but can come from any direction. Only useful
in windy areas. Not useful in standstill aired areas where the wind only
blows on average 10mph. Useful areas are coastlines and great planes
on high ridges where the wind pushes itself along the hills and lower
mountains. Useless areas are inland where the wind doesn’t howl at all.
Yes this method is used to produce electricity and other resources. The
electricity that it creates can help heat houses. This method is able to
move water and boats along water. It has been tested to moves cars but
the man behind the idea has only made 5 of them and won’t sell his idea
to big dealerships. But the average cost of making one of these is
around 1.5 million dollars and his price on selling one is about 2million
dollars. Windmills are used for mechanical power, powering certain
appliances in workshops.
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-The first windmills were used for
grain-grinding and water pumping.
-Earliest known design of a windmill
is the vertical axis system developed
in Persia (500-900 A.D.)
-It took hundreds of years before the
Europeans improved the design by
making it more efficient.
-In the United States, up until 1970,
the primary use was water-pumping
and the main applications were stock
watering and farm home water
needs.
-Today, windmills are mainly used to
produce electricity.
-The first use of a large windmill to
generate electricity was a system
built in Cleveland, Ohio, in 1888 by
Charles F. Brush (pictured)
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-Wind energy is the cheapest form of new electricity generation available today. -Wind power is more expensive than power from old, established power plants,
but is cost competitive with any new power plant.
-The cost of wind power has been greatly reduced over the last 20 years due to
technological innovations.
-In the 1980’s, when the first commercial-scale wind turbines were installed, wind
generated electricity cost up to 30 cents per kilowatt-hour. Today, wind power
plants can generate electricity for less than 5 cents per kilowatt-hour.
-This price is competitive with new coal- or gas-fired power plants.
-The true cost of wind power is very hard to determine because there are many
factors involved
-Location, ownership, cost of financing, construction contracts, and the type of
the machine.
-Commercial scale wind turbines cost around 1.5 million dollars.
-Wind turbines under 100 kilowatts cost roughly $3,000 to $5,000 per kilowatt of
capacity. That means a 10 kilowatt machine (the size needed to power an average
home) might cost $35,000-$50,000.
-Cost of Maintenance is the sum of many different factors such as:
-Insurance, land rent, administration, service and spare parts and other additional
costs.
-All of these different factors make determining the cost of maintenance very
difficult.
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-Unlike other energy sources wind energy generates
electricity straight from its source of fuel.
-Wind power is the fastest- growing renewable energy
source.
-It can generate electricity any time, day or night, as long
as there is wind present.
-Geothermal plants require places near plate tectonic
boundaries which could be harder to locate than windy
areas.
-Doesn’t emit greenhouse gases
-The energy cost during manufacture can be made up
within 4-5 months of production.
-Has the capacity of 2.5% of worldwide electricity use.
-Turbines usually operate 75-90% of the time, but not
always at full capacity.
- Current technology and sites could provide 20% of the
global power supply by.
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The best places for wind farms are
located in coastal areas.
-Places where the wind is stable and
strong like at the tops of rounded
hills, open plains, gaps in mountains,
or offshore.
-To be worth the expenses, they
need to get an average wind speed of
25 km/h.
-Isolated places, such as farms, have
their own wind generators and can
supply electricity to nearby homes
and buildings.
-Ex) “wind farms” in California supply
electricity to homes in L.A.
- Wind generators produce 2% of
California’s power.
-Most wind farms in the UK are in
Cornwall or Wales. These places are
consistent with the ability of highgrade wind resource.
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Palm Springs
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-Pollution free
-Has little impact on
agriculture or livestock
grazing because it only
takes up a small portion of
the geographic area.
-Preserves resources that
could be destroyed through
other methods of extraction
of energy.
-Produces no emissions
that could contribute to
mercury contamination.
-Preserves open space
because large buildings
cannot be built near wind
turbines.
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http://www.slideshare.net/
windturbinesnet/comparing
-wind-power-and-otherrenewable-energy-sources7145065
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Can’t produce same amount of energy at all
times
The building of the turbines causes pollution
Takes a huge wind farm to produce for a
community
Largest possible turbine can only support 475
homes
Can’t always be relied on
Usually takes away beautiful, open spaces
(Palm Springs)
Turbines are annoying and noisy
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“Solar Wind Power”
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10 years, 3.8 billion
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Will provide 1 gigawatt power by 2020
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Wind power is simply
the best form on
alternative energy. It
contributes very little
pollution, is cheap to
set up and use, and
can be useful at all
parts of the day/night.
The technology is still
growing, and it is only
going to get more
productive and
affordable.
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Wind power - Wikipedia, the free encyclopedia. Retrieved November 27,
2011, from http://en.wikipedia.org/wiki/Wind_power
Is Wind Energy Expensive? | Windustry. (n.d.). Community Wind — Ready
to Deliver | Windustry. Retrieved November 27, 2011,
fromhttp://www.windustry.org/is-wind-energy-expensive.
Operation and maintenance costs of wind generated power. (n.d.). Wind
Energy: The Facts. Retrieved November 27, 2011, from www.windenergy-the-facts.org/en/part-3-economics-of-wind-power/chapter-1cost-of-on-land-wind-power/operation-and-maintenance-costs-ofwind-generated-power.html
Wind Power - Converting wind energy into electricity. (n.d.). Alternative
Energy News. Retrieved November 27, 2011, from
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Advantages and Disadvantages of Wind Power. (n.d.). A Design and
Technology Site. Retrieved November 27, 2011, from
http://www.technologystudent.com/energy
Energy Resources: Wind power. (n.d.). Andy Darvill's Science site: Home.
Retrieved November 27, 2011, from
http://www.darvill.clara.net/altenerg