In the 20th century the Earth’s temperature rose one degree Fahrenheit. The leading cause of this temperature rise is the carbon dioxide released into the atmosphere by burning the fossil fuels we use to supply energy.
Fossil fuels are a non-renewable resource, meaning, once we use all of what we have that will be it. With our population growing at an unbelievable rate it is believed that all the world’s fossil fuels will be completely gone by the early in the 22nd century.
Wind is a renewable resource which means, no matter how much of it we use there will always be more. It also doesn’t produce other harmful greenhouse gasses like carbon dioxide when used to produce energy.
The link in this slide takes you to a video from GE which tells us of the of capability wind turbines to power communities.
The blades of a turbine are designed to capture the kinetic energy produced by the wind. Inside the turbine there is a shaft which leads from the rotor to a generator so, when the wind blows and the blades move it causes this shaft to spin, sending energy to the generator, which turns the kinetic energy into electricity.
Here it shows step by step how energy is put to the public. After the wind energy is converted to electricity it is sent to a transformer which increases voltage, then sent to a substation which increases the voltage enough to be transmitted over long distances and then it is sent out to the grid.
On a global scale wind turbines currently produce as much energy as eight nuclear power plants. The amount of energy a turbine produces depends on its size, currently one large scale turbine can produce 700 kilowatts – 1.8 megawatts. There are also units that could produce 4 megawatts alone under development.
Some people that are concerned with global warming have installed personal wind turbines to provide electricity to their homes. A small wind turbine can generate up to 16,000 kilowatts per year and the average American home only uses about 10,000 kilowatts in a year!
There are some disadvantages of using turbines to provide energy. No one can really predict how much wind there will be in an area over time so large areas might not be able to be completely reliant on wind like they are with fossil fuels. Places that have a lot of wind aren’t always suitable because they are far away from areas best suited to use wind energy so it would cost money to place new substations and transmission lines up. Large wind farms are also quite noisy so a lot of people don’t want them too close to home.
There are many benefits that come from using wind to provide our energy. Wind turbines don’t use water at all, so it helps with preserving that natural resource. They can also help us keep some money in our pockets because more use of wind energy means less use of oil, causing prices at the pump to decrease. There are many reasons using wind will help everyone in the long run, I hope the few facts I have given you will help you to become pro-turbine. Thank you!
is the number
we do once
used up all
We have been hurting our world with fossil fuels to
provide energy when it has been providing us with
them all along!
Turning to wind will help us produce a much
cleaner environment and do our world wonders!
Brown, Lester R. Plan B 3.0: Mobilizing to Save Civilization. Third Edition. New
York, W.W. Norton & Company, 2008.