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The
History of Wind Energy
Humans have used wind energy for thousands of years. Ancient
Persians used wind energy to pump water before the birth of Christ. The
world was explored by wind-driven ships long before engines were invented,
since early recorded history people have been harnessing the energy of the
wind. Wind energy propelled boats along the Nile River as early as 5000 B.C.
By 200 B.C. simple windmills in China were pumping water, while
vertical-axis windmills with woven reed sails were grinding grain in Persia
and the Middle East. As recently as the 1920s, over a million wind turbines
pumped water and provided electricity to farms in North America.
How
The Wind Energy Work.
Wind energy converts kinetic energy that is present in the
wind into more useful forms of energy such as mechanical energy or
electricity. Wind energy is a pollution-free, infinitely sustainable form of
energy. It doesn’t use fuel; it doesn’t produce greenhouse gasses, and it
doesn’t produce toxic or radioactive waste.
Wind energy is the kinetic energy that is present in moving
air. The amount of potential energy depends mainly on wind speed, but is
also affected slightly by the density of the air, which is determined by the
air temperature, barometric pressure, and altitude.
The current interest in wind energy was started by the need to
develop clean, sustainable energy systems that can be relied on for the
long-term future. Modern aerodynamics and engineering have improved wind
turbines. They now provide reliable, cost-effective, pollution-free energy
for individual, community, and national applications.
Applications
·
National and provincial network
·
Communities
·
Process industries
·
Homes
and farms
·
Remote communities
Benefits
·
Wind
energy is an ideal renewable energy because
·
It is
a pollution free, infinitely sustainable form of energy
·
It
doesn’t require fuel
·
It
doesn’t create greenhouse gases
·
It
doesn’t produce toxic and radioactive waste
Alternate Energy Pakistan
There
is large potential of renewable energy in Pakistan. These resources need to
be developed and popularized for sustainable development. The present
contribution of renewable sources is however, negligible in the total energy
picture of Pakistan. Micro-hydro is a low-cost supply option with large
potential. Wind, too, can be harnessed after proper planning. Biomass is
another viable option which is not exploited to its potential, and
sustainable development of solar energy needs further scientific research.
Energy Situation in Pakistan
The
major constraints in sustainable energy development in Pakistan include high
dependence on imported oil and a high rate of growth in use of indigenous
natural gas.
Renewable resources of energy have large potential in the country according
to the survey conducted by the International Power Generation (IPG) in 1978,
Pakistan is 2nd richest country in the world for wind power
generation potential while Egypt is the riches in the world, this potential
has not yet been adequately tapped.
Meanwhile, inefficient use of energy resources continues to affect energy
use patterns. Since energy is an important vehicle for growth and
socio-economical development, finite energy resources and a high depletion
rate leads to a negative impact on sustainability.
Economic activity depends on environmental resources, and the lack of
efficient use of energy resources is a major environmental concern in
Pakistan.
Envirable Capabilities
Envirable is fully capable to design, engineer, integrate, manufacture,
install and operate the wind turbine systems in Pakistan and other parts of
the world
- Horizontal Shaft Wind Turbines.
- Small Scale Domestic Wind Turbines.
- Wind Turbine Control Systems.
- Wind Turbine Towers and poles.
- Wind Turbine Gear boxes and transmission systems.
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Tel:
+92 (0) 21 203 9555 and 203 9556
-
Fax:
+92 (0) 21 520 6765
-
email:
info@envirable.com
-
Envirable Energy Systems (Pvt.) Ltd.
-
519 Anum Blessings, Shahre Faisal Karachi P A K I S T A N
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