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wind Technology
Wind
power is the conversion of wind energy into a useful
form, such as electricity, using wind turbines.
Wind turbines used to generate electricity come
in a wide variety of sizes.
Wind energy is
an important part of Canada's energy future,
creating new investment and jobs in Canadian
communities while also contributing to a cleaner
environment for future generations. Infinity’s
Wind Energy products deliver personal energy
independence. These products offer to the consumer
the ability to independently create and deliver
electricity, in a dependable, competitive, environmentally
responsible, green manner - anywhere on the planet. |
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What Is a Wind Turbine?
Wind turbines are structures that use moving
air to generate electricity (wind power) through
the use of blades that are easily turned by the
wind.
How Does It Work?
Wind turbines capture the kinetic
energy in surface winds and convert it into electricity.
To do this use they use three basic parts: blades,
a shaft and a generator. As wind moves
over the turbine blades, it creates high-pressure
air below the turbine blades and low-pressure
air above them, causing ‘lift’ — similar
to airplane wings. Lift makes the blades
rotate since each blade is slightly angled. The
blades turn a shaft that moves magnets in the
generator, which in turn creates electricity.This
electricity can be used on-site by a home, business,
farm, etc. or can be ‘pumped’ into
a nearby electrical grid for storage and transmission
to others who require it. Wind turbines used to generate
electricity come in a wide variety of sizes. Large
wind turbines, which are usually installed in
clusters called wind farms, can generate large
amounts of electricity. Large wind turbines
may even produce hundreds of megawatts of electricity
- enough to power hundreds of homes. Small
to medium-sized wind turbines, which are generally
defined as producing no more than 100 kW of electricity,
are designed to be installed at homes, farms
and small businesses either as a source of backup
electricity, or to offset use of utility power
and reduce electricity bills.
Wind
Micro - Small
Wind Turbines – 350 watts – 50
kW: micro-generation turbines range in size from
300 watt to 10 kW. Increasingly, North American
consumers are choosing to purchase grid-connected
turbines in the 5 to 10 kilowatt range to power
their whole homes. Small wind turbines range in
size from 8 kW – 50 kW and are used for small
business or farm applications. This size of turbine
is used extensively for off-grid applications but
has now become popular in jurisdictions that allow
interconnection with the utility grid. Farms usually
require a turbine with a capacity between 10
kW and 50 kW. Infinity has micro and small
wind turbines ranging in size from 350 watts to
10,000 watts or 10 kW.
Medium - Large
Wind Turbines – 50 kW – 500
kW: medium-size range from 50 kW to 200 kW and
are for medium-scale commercial and industrial
operations. Large wind turbines range from 200
kW – 500 kW and are used in wind farms for
commercial production of electric power are usually
three-bladed and pointed into the wind by computer-controlled
motors. The blades are usually coloured light gray
to blend in with the clouds and range in length
from 20 to 130 metres (65 to 400 ft) or more. The
tubular steel towers range from about 100 to 300
feet (60 to 200 metres) high. The blades rotate
at between 10 - 30 revolutions per minute.
Megawatt Wind
Turbines – 500 kW – 7
MW: this classification of wind turbines are exclusively
for wind farms, large-scale industrial and grid-enhancement
applications. Turbines over 3 MW are utilized mainly
in off-shore wind energy generation.
So how much wind do we have
at our disposal?
In
Canada, we have more than we could ever use. Wind
is abundant and free. Our vast landscape,
our three windy coastlines, the plains and mountains
all contribute to this endless resource. Today,
we are just beginning to tap into Canada’s
potential wind resource, which currently powers
the equivalent of 315,000 Canadian homes. Tomorrow
we hope to do even more. Canada has more
than enough wind resources to meet 20% of our
electricity demands – enough to power 17
million homes!
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