Wind power vs Solar energy, an even match?
Today in center stage is a battle for the ages. On the right corner, packing a hurricane punch yet is known to
move softly as a breeze is wind power. On the left corner, with a scorching hot aura, moves in a speed of light, is
solar energy. Wind power versus solar energy, which one is going to be declared the champion of the alternative
energy movement?! Let's get ready to rumble!
Or something like that. I apologize for that intro but I just can't help. I figured that if I was going to match
one alternative energy resource against the other, then I'll make some extravagant introduction. Just imagine the
drum rolls.
Actually, there is an existing debate among environmentalists and even scientists on which energy resource should
be developed first given their advantages and drawbacks. Staying away from the personal biases, numerous studies
have shown that overall, wind power is more cost effective than harnessing the sun's energy. Let's see the reasons
behind that conclusion.
Harnessing the sun's energy can be done by a number of ways. But probably the simplest way which can be applied in
a small home is by using photovoltaic cells or PV or solar cells. What happens is that sunlight hit the surface of
a photovoltaic (PV) panel which responds by creating free electrons which is channeled to generate an electric
current.
Wind power on the other hand utilizes a propeller and a shaft system which has a magnet wrapped by a coil of wire
inside. As the wind turns the propeller and the magnet inside, the electrons in the wire are forced to move along
the wire producing an electrical current.
Both ways are quite simple but the complexities now lies on the costs of producing the necessary equipment
especially the mechanisms that will maximize the power output. When costs of production of photovoltaic cells and
wind turbine are compared, the latter is much cheaper to produce. Although, manufacturers of photovoltaic cells
stress that as the demand on PV cells increase, the costs of production decreases. So its just a matter of time
before PV cells become price competitive.
Other problems include the logistics of placing the equipment. A solar panel requires quite a large space plus,
your location on the globe will affect the amount of sunlight you receive and consequently the amount of power you
produce. The further away from the equator you are, the less amount of sunlight you can harness. Also, on the
average, the PV cells have a 15-20% efficiency rate.
The problem with wind power on the other hand is that not all areas will have winds favorable for a turbine. And if
you do locate a place where winds are strong and the turbine can be maximized, you'll find that the area (more
often than not) is inhabited by various species of birds. You don't want to kill birds with your turbine, do
you?
Now going back to our wind power vs. solar energy match-up, indeed we do have to agree that wind power is more cost
efficient. However, both alternative energy resource will play a big role in our future.
It is, therefore, in my humble opinion that we both develop the two technologies simultaneously for each one has
their advantages and disadvantages and each one can be properly utilized for specific areas.
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