Discover Minneapolis


An Overview of Wind as an Energy Source

Wind is one of the cleanest, if not cleanest,
renewable energy sources available to us.7. Modern windmills actually come in two
What most people don't know is it is also theforms,  vertical  and  horizontal  models.
fastest  growing  energy  sector.
8. Horizontal windmills are the stereotypical
Wind is an indirect version of solar power.version that comes to your mind when the word
Different surfaces on the Earth reactis  mentioned.
differently to being hit by sunlight,
particular in regards to heat. As sunlight9. Vertical mills look like upside down egg
heats up surfaces, they warm up at differentbeaters,  but  are  hypnotic  when they spin.
rates. The surround air also warms up at
different rates, fertilizing the wind10. Unlike traditional utilities, most energy
process. Temperatures over a body of waterproduced by wind is done by private
like a lake will always be cooler thanbusinesses and sold to utilities through an
temperatures over rocky ground. Hot air riseselectric  grid  hookup.
and cool air rushes into fill such voids. As
this process occurs, the rushing air11. Wind power in the U.S. generates a
manifests as wind and an incredibly cheap andwhopping 17 billion kilowatts per year, more
clean  energy  source.than enough to provide all electrical needs
for  the  city  of  Chicago.
The fact that wind is a naturally occurring
event makes it a great energy source.12. More than 30 states have wind farms
Consider  the  following:generating and supplying electricity to
utility  companies.
1. Wind is a renewable energy source because
it will exist as long as sunlight beats down13. California, Texas, Minnesota, Iowa, and
on us. 2. Wind has been used by man as anWyoming are the dominant forces in producing
energy  source ever since we've sailed boats.energy  from  wind.
3. The first windmills were used to turn14. The biggest energy producer from wind is
wheels  to  grind  grain  in  Iran.Germany, which is also dominant in solar
power  production.
4. American colonist used windmills to move
water,  grind  grain  and  cut  wood.For many, these wind findings will be a
surprise. The sole fact that there is enough
5. Wind energy harnessed by windmills was apower produced by wind energy to handle a
dominant source of energy in rural America incity the size of Chicago is pretty
the  1920s.impressive. As we move into the 21st century,
new technology is heading in the direction of
6. In modern times, California is the biggestcreating wind energy platforms for individual
user of wind power and produces twice as muchresidences.
electricity  as  any  other  state.



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