Wind turbines were invented way before you. Like a thousand years earlier. Circa A.D. times, Wind Mills already existed. Did you know that way back even in 5000 BC Egyptians already started using the concept of wind power for their boats? Yup, they did. Pretty awesome, I know.
My Question: Why are wind turbines not everywhere?
I would have thought that with these thousands of years that have passed we would have been able to establish some worldwide wind turbine system put both onshore and offshore around this planet. Although some would debate that it would be a disadvantage to some wildlife such as birds and bats and also some complaints on the noise pollution it creates, we can find a way to fix that problem (right?).
The simple principle on which wind turbines use to create energy and produce electricity
There is a small device attached to the very end of the wind turbine (kind of like a tail) which has two to three blades (but instead of being sharp it’s rounded and caved like a spoon and its movement is similar to that of mini propellers) and is known as an anemometer. This device (anemometer) is connected to a rotor which is connected to the main shaft which is connected to and spins a generator which produces and create electricity!
There are a minimum and maximum speed of air which is needed for the wind turbine to move or stop (especially if the winds are too strong). And, according to WilloWindEnergy (which is both a developer and operator of wind farms in the UK), the wind turbine would need a minimum wind speed of 4 to 5 meters per second (circa 10 miles per hour) and a maximum wind speed of 15 meters per second (circa 33 miles per hour).
What is the difference between offshore and onshore wind turbines?
First and the main difference between the two types are the locations. Offshore wind turbines are in the ocean and onshore wind turbines are on land.
Offshore wind turbines are farther away from humans which makes it safer and less irritating (with its noise pollution). Also, because winds are usually higher at sea, they built these wind turbines to be stronger and they are also better at producing as well. But, unfortunately, it is more difficult to install offshore wind turbines compared to onshore because it’s like in the middle of the ocean. Okay, fine, not exactly at the center of the ocean but really far from civilization in the middle of rough waves and strong winds. Also, the wind turbines (offshore) have the disadvantage of having less maintenance as it’s not such an easy task to grab a boat with the tools and fix the underground wires or other problems that may occur. According to GroundSure, they install the wind turbines in open water by bringing the parts and assembling the parts like a kit. They ship the parts, dividing them by their main components and then when they’re at their location they assemble the turbine piece by piece. Also, the drilling is different (and in my opinion) much harder than onshore because they need to drill deep underneath the seabed whereas onshore wind turbines just need to drill a deep hole underneath the surface of the earth (on land, which should be obviously easier. At least, I think it will).
Onshore wind turbines, on the other hand, have their advantages and disadvantages as well. For your onshore wind turbine (just like the offshore wind turbine) you’ll need to dig a hole where you will place the turbine. The depth of this hole would be around 1 meter or 3 feet but it varies with the size of your wind turbine. The bigger the turbine = the bigger the drill and dig. Most cons lie on the noise pollution they omit, the dangers of wildlife getting hit by this that onshore wind turbines, and apparently, they also don’t look a pleasant sight to some.
How do we calculate wind power?
We can calculate the wind power that is used by the anemometer on the wind turbines with the equation: P = 1/2 ρ A v3
Choose a location
- Avoid slow winds
- Avoid turbulent wind
- NEVER put the wind turbine on top of a building
- It creates loud noises which won’t be pleasant for the people in the building
- It’s not always a site for everyone to enjoy
- It might not be that stable (compared to the once that have a foundation and are built and stabilized underneath the earth surface a bit
High wind speed tip:
- Open areas are best
- Upppp high (but not on a building [<— REMEMBER])
- If you want it on a higher area just extend the stand to be longer (but you will also most likely need to dig deeper, as well)
And, according to the wind energy association,
The output of a wind turbine depends on the turbine’s size and the wind’s speed through the rotor. An average onshore wind turbine with a capacity of 2.5–3 MW can produce more than 6 million kWh in a year – enough to supply 1,500 average EU households with electricity.
BIGGER TURBINE = MORE POWER
BIGGER TURBINE = DIG DEEPER
Something that just blew my mind with it’s awesomeness…….
If you check out this website, you will see (in real time) the movement of wind happening around the globe! And, that’s not all! You can also see the global map of wind, weather, and ocean conditions. Here’s a small take on what you will see once you visit the website.
Mind – blowing,
Check it out!
So, here we are again: why don’t we have more wind turbines? It mostly lies on a couple of problems such as —> the fund. Although you might think that the price of the wind turbines by themselves is quite reasonable (especially considering the length and how much non-polluting energy and electricity it can produce), you would still have to consider all the other factors such as taxes, labor, and transportation expenses on the bill. But, with global funding, greater engineers (to solve the endangerment to flying wildlife and loud sounds emitted), awesome artists (to fix the “looks” maybe so that it could be a sight to sore eyes, too) and imagine that! Teamwork. Passion. We can probably make this work. And, think about it, we could even reduce the problems that come with burning fossil fuel in the long term.