S . Junaid Humail
Humans use wind power , or motion energy , for many
purposes : Sailing, Flying a kite, and even generating
electricity. In the recent past, wind energy has emerged as a
clean, affordable, inexhaustible and an environment-friendly
source of energy. This presentation will tell us all about the
wind power/energy and where they are found in Pakistan
Current locations in Pakistan
Jhimpir Project :-
The Jhimpir Wind Power Plant is the first wind power plant in
Pakistan. The wind farm is being developed in Jhimpir, by Zorlu
Energy Pakistan the local subsidiary of a Turkish company. The
total cost of project is $136 million. Completed in 2002, it has a total
capacity of 50MW.
Feasibility of developing wind
Pakistan is fortunate to have something many other countries do not, which
are high wind speeds near major centres. Near Islamabad, the wind speed is
anywhere from 6.2 to 7.4 metres per second (between 13.8 and 16.5 miles per
hour). Near Karachi, the range is between 6.2 and 6.9 (between 13.8 and 15.4
miles per hour). Pakistan is also fortunate that in neighboring India, the
company Suzlon manufactures wind turbines, thus decreasing transportation
costs. Its turbines start to turn at a speed of 3 metres per second. Vestas, which
is one of the world’s largest wind turbine manufacturers, has wind turbines that
start turning at a speed of 4 metres per second. In addition to Karachi and
Islamabad, there are other areas in Pakistan that receive a significant amount
In only the Balochistan and Sindh provinces, sufficient wind exists to power
every coastal village in the country. There also exists a corridor between
Gharo and Keti Bandar that alone could produce between 40,000 and 50,000
megawatts of electricity.
Given this surplus potential, Pakistan has much to offer Asia with
regards to wind energy. In recent years, the government has
completed several projects to demonstrate that wind energy is
viable in the country. In Mirpur Sakro, 85 micro turbines have
been installed to power 356 homes. In Kund Malir, 40 turbines
have been installed, which power 111 homes. The Alternative
Energy Development Board (AEDB) has also acquired 18,000
acres for the installation of more wind turbines.
In addition to high wind speeds near major centres as well as
the Gharo and Keti Bandar corridor, Pakistan is also very
fortunate to have many rivers and lakes. Wind turbines that are
situated in or near water enjoy an uninterrupted flow of
wind, which virtually guarantees that power will be available all
Advantages of Wind Energy
1. The wind is free and with modern technology it can be captured efficiently.
2. Once the wind turbine is built the energy it produces does not cause green
house gases or other pollutants.
3. Although wind turbines can be very tall each takes up only a small plot of
land. This means that the land below can still be used. This is especially the
case in agricultural areas as farming can still continue.
4. Many people find wind farms an interesting feature of the landscape.
5. Remote areas that are not connected to the electricity power grid can use
wind turbines to produce their own supply.
6. Wind turbines have a role to play in both the developed and third world.
7. Wind turbines are available in a range of sizes which means a vast range of
people and businesses can use them. Single households to small towns and
villages can make good use of range of wind turbines available today.
Disadvantages of Wind Energy
1. The strength of the wind is not constant and it varies from zero to storm force. This
means that wind turbines do not produce the same amount of electricity all the
time. There will be times when they produce no electricity at all.
2. Many people feel that the countryside should be left untouched, without these
large structures being built. The landscape should left in its natural form for
everyone to enjoy.
3. Wind turbines are noisy. Each one can generate the same level of noise as a family
car travelling at 70 mph.
4. Many people see large wind turbines as unsightly structures and not pleasant or
interesting to look at. They disfigure the countryside and are generally ugly.
5. When wind turbines are being manufactured some pollution is produced. Therefore
wind power does produce some pollution.
6. Large wind farms are needed to provide entire communities with enough
electricity. For example, the largest single turbine available today can only
provide enough electricity for 475 homes, when running at full capacity. How
many would be needed for a town of 100 000 people?
Wind Power Proposed Projects
Pakistan is developing wind power plants in
Gharo, Keti Bandar and Bin Qasim in Sindh. The
government of Pakistan decided to develop wind
power energy sources due to problems supplying
energy to the southern coastal regions of Sindh
and Baluchistan, the project was undertaken with
assistance from the government of China.