Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Alternative Energy

No description
by

Kennion Black

on 25 February 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Alternative Energy

Thank you for watching!
Alternative Energy:
By Kennion Black and
Dylan Bills

What is alternative energy?
By definition: "Alternative energy is energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power."
There are many different types of alternative energy.
Energy Source One:
Solar Energy
Solar energy is radiation from the Sun that we can collect. (shown below)

negatively charged silicon
Placed so sunlight doesn't reflect
conducts a negative charge
Radiation from the Sun
conducts a positive charge
positively charged silicon
A Solar Panel
This changes the direct current produced by a solar panel into Alternating Current, the electricity used in most American homes.
The spare electricity is put into power lines for later use.
The power is then used for all electrial devices.
The remaining power is then put through this power box to control where the electricity goes.
This measures all the electricity generated.
This regulates the amount of electricity that enters- extra is moved to the power lines.
Solar energy is one of the best options for clean, renewable energy.
Pros:
renewable
Quiet
Abundant
many applications
low maintenance
Powers poverty areas
cost effective
Extra energy can be stored
no fossil fuels
efficent
Sustainable
DC/AC inverter
Total Generation Meter
Utility Meter
Electricity
Power Main
Cons
Intermittent
High starting cost
Weather
Pollution decreases efficency
No nighttime power
needs to be angled
Exotic materials used
Energy Source 2:
Wind Energy
Wind energy is wind that turns blades on a turbine, which in turn turns a generator for electricity.
Wind blows in the diretion of the t
urbine
Wind turns the blades
The spinning from the blades spins a large metal shaft, which spins a gearbox that increases the spin speed by about 100x, which in turn spins the generator for electricity.
Rotor
Windmill
blade
Main Shaft
Gearbox
Generator
Wind energy is one of the most powerful
opportunities for power,
and one that many people have adopted today.
Pros:
Renewable
Green
Space-efficient
Low maintenance needed
Prices have reduced over 80%
Sustainable
reduces dependance on fossil fuels
In windy areas, electric
comp
anies may pay
you
Cons:
Not always reliable
Noisy
Expensive
Intermittent
Only usable with wind
Take a lot of space
To some, look ugly
Affect enviroment (noise)
Mess with TV towers
Only works when
wind blows one direction
Now, I could ramble on for a while, but...
...that would take a lo-o-o-ng time...
Thank you for watching!
Full transcript