Wind Energy, as the name suggests is produced
by converting the wind power into a usable form of energy. The
most popular technology for this is wind turbines. Wind turbines
convert the wind power into electricity, which is the most common
form of energy today. Wind is a renewable resource of energy.
This resource accounts for almost 70% of the total renewable
energy resources being utilised today.
In India only 9 states use wind energy and
represent almost 100% of the country’s total wind capacity.
Government is promoting utilisation of renewable sources of
energy today in a big way, since the greenhouse effect has made
its presence and impact known to the world in couple of last
years with the climate changing rapidly and unpredictable as
well. The wind potential in India can provide up to 45,000 MW
of energy per year. As of the figures gathered in 2006 the total
installed capacity for wind power was only around 5,350 MW,
this compared to the potential of wind power is around 12%.
Thus great opportunities lie in this technology in times to
There is also a need for proven high capacity
wind turbines, generally greater than 1-2 MW. In addition, there
is a need for turbines adapted to low-wind regimes and improved
design for rotor blades, gear boxes, and control systems State-wide
gross and technical wind power potential. The technical potential
has been estimated by assuming 20 percent grid penetration,
which would increase with the augmentation of grid capacity
in certain states. Maharashtra, Andhra Pradesh, Tamil Nadu,
and Gujarat are the leading states, with 62 percent of the projected
“technical” potential. India had 5,341 MW of installed
electricity capacity from wind energy as of March 2006.
Nine states accounted for 99 percent of the
installed capacity in the country. Tamil Nadu accounted for
54 percent of wind generation, while Maharashtra accounted for
18.7 percent of installed capacity in India. Most of states
enjoying wind power generation – 70 percent -- are located
in coastal areas with geographic and climatic conditions favourable
for wind farms.
Individual wind turbine capacity has increased
from 55 kW in the mid-1980s to 2,000 kW today. India already
manufactures wind electric generators with up to 1,650 kW per
unit capacity domestically and their expertise in the subject
continues to grow. Enercon (India) Ltd., Vestas RRB India Ltd.,
and Suzlon Energy Ltd lead the industry. To harness the projected
potential, new technologies with higher capacities are needed
in the country.