Spinning its way to the top!
What is wind energy?
- This is when natural wind, from our atmosphere, turns a wind turbine's blades, which produces energy. Then, this energy is used in homes and in other buildings.
How it works
- Wind blows around a turbine's blades.
- The blades absorb or trap this energy and rotate.
- This causes the shaft inside to spin.
- Then, gearbox begins to spin because it is connected to the shaft.
- Lastly, since the gearbox is connected to the generator, it turns on so electricity is produced.
- This is a clean way to make energy
- Doesn't release any greenhouse gases
- It is renewable and it uses hardly any water
- Puts tons of money into our economy yearly
- Wind is free
- Makes energy that we can use for electricity
- These wind turbines cost more than a fossil-fueled generator would
- The rotor blades produce a lot of noise
- Wind turbines aren't visually appealing
- Many birds and bats have been killed by being hit by the rotors
- It isn't always windy
- Some windy sites are difficult to access because they are in remote locations
- There is a wide range to a wind turbine's cost because it depends of how many kilowatts it produces:
-10 kilowatt machine, that can power a large home, costs between $50,000 to $80,000 to be installed
-utility scale turbine costs between $1.3 million to $2.2 million per MW (megawatt)
- Turbine parts are transferred with semis, but companies try to build their buildings in the most wind efficient places.
- Wind turbines are monitored 24/7
- A normal turbine is checked once or twice per year to change oil and filters, and to have their bolts secured.