|

|
~3200 B.C. the ancient Egyptians invented the
sail. The way a boat moves is through the wind
pushing the sail. Excluding modern times, a wind
powered boat has been the primary form of water
transportation in all of human history. Some
examples of civilizations and countries that used
wind powered sails follows.
|
|
Romans used passive wind power in their
extensive fleets. Some ships were large enough to
carry almost a thousand tons of cargo, or a great
number of passengers depending on the length of the
trip and the accomodations of the passengers.
|
|
The Chinese reportedly invented the windmill.
West of China in Persia windmills were used around
200 BC.
|
|
By 1000 A.D. the Vikings had explored and
conquered the North Atlantic because of the power
of the wind.
|
|
Around the 14th century, the Dutch used passive
wind power to pump water from flooded fields with a
device called a windmill. Much of Holland is below
sea-level and is often flooded. The windmill was
the transition invention that led to modern wind
power turbines and other devices.
|
|
French farmers used wind power to move water
into pools where it was used for irrigation.
|
|
In 1854 a wind powered water pump was introduced
in the United States. This type is very familar
because its blades rested on a wheel and it had a
tail to keep the fan pointed into the wind.
|
|
In Denmark wind power was pioneered in 1890
starting (120) 5 - 25 kW wind powered systems.
|
|
In the 1930s a Frenchman named G. J. M. Darrieus
invented a wind power design in the shape of an
eggbeater.
|
|
By 1940 there were around 6 million windmills of
the type introduced in the United States almost a
century earlier in 1854.
|
|
In 1941 near Rutland, Vermont a giant 1.5 MW
machine powered the Central Vermont Public Service
electric grid.
|
|
Just as solar power technology accelerated
during the oil embargo of 1973 - 1974, wind power
made large strides. Westinghouse Electric Company
received Department of Energy (DOE) / NASA
contracts for building large scale wind turbines.
The greatest capacity wind turbine was built in
Oahu, Hawaii, with a 3.2 MW power rating.
|
|
A 25% tax credit for investors of wind turbines
was made through the Public Utilities Regulatory
Policies Act (PURPA) of 1978. Between 1981 and 1984
6,870 turbines were installed in California.
|
|
At the end of 1983, there were around 4600 wind
turbines operating out of California. These
turbines together produced 300000 KW of
electricity.
|
|
The change in prices of wind power electricity
dropped from 14 cents per kWh in 1985 to 5 cents
per kWh in 1994 making wind power a much greater
competitor in the electricity market.-
|
|
|
|
|
|
|
|
|
|
|