Explanation
The background of the poster depict a wind mill
(it’s actually a combination of wind turbine and solar panels). Wind turbine is
one of the lowest energy cost green energy, not only the source is free,
renewable and no by-products. Literally there’s no carbon emission during the
course of its operation life.
It comes& goes yet need no transportation- The spinning windmill imply that the production of energy without
fossil fuel and better yet the necessity of its transportation. As long as
there’s air pressure differentiation, air movement or wind, there’s FREE power.
It is everywhere yet need no storage- Wind power require no storage for fuel, since it is fuel by air
movement, hence it need no storage space for fuel and any space
consumption as a result of fossil fuel mining, transportation, storage, waste
disposal and pollution out of its by-products. The current technology allow
windmill to be station at shallow sea which eliminate the land consumption
while allow unobstructed wind fuelling the windmill. On another hand, skyscrapers
such as the Bahrain trade centre has wind mill installed to power its own
building and with surplus selling back to the grid.
It is powerful yet it’s free, catch it if you will- Wind is invisible to naked eyes yet it’s a powerful natural
phenomena freely available. Although it might not commercially viable to all
areas, with regard to the area air pressure, wind speed&cost associated
with the land. Generally unobstructed land such as sea side, desert or areas
that allow at least 15m/s of wind speed is commercially feasible for wind
turbine to happen.
In the context of sustainability, the
poster is promoting green energy in fighting against unsustainable power production,
in effort to control the rate of climate change and potential threat of
hazardous waste, thus contribute to a more sustainable living.
I purposely end it with “catch it if you
will….”. There’s no question of whether can we because we definitely can only
if we will. The overall cost of wind turbine is so affordable that any medium
class in developing country can afford one. Thus, the challenge here is the
will of readers to make it happen. Not forgetting solar panels is also getting
affordable. The bottom line is whichever, wind turbine or solar panels, I hope green energy of such can be proliferate to every corner of earth
where power is needed.
Wind Energy by the Numbers
Ø Wind energy
produced worldwide: 65,000,000,000
kWh per year (enough power for 6 million U.S.
homes)
Ø Wind energy
produced in the U.S.: 16,000,000,000
kWh per year (enough power for 1.6 million
homes)
Ø Potential U.S.
wind energy production by 2020: enough power for 25 million
homes yearly
Ø Installed cost
of wind energy: 2-6 cents/kWhYearly
emissions eliminated by generating energy from a 1 MW wind turbine instead of 1
MW of conventional sources: over 1,500 tons of carbon dioxide, 6.5 tons of
sulfur dioxide, 3.2 tons of
nitrogen oxides, and 60 pounds of
mercury in one year.
Ø Wind power farms
generate between 17 and 39 times as
much power as they consume, as compared to 16 times for nuclear plants and 11
times for coal plants, according to a study of Midwestern wind farms by the
University of Wisconsin.[1]
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