DC vs AC
DC vs AC
Created by Thomas Edison
Edison didn't want to lose his royalties from his direct current patents
Worked to discredit alternating current
General Electric bid to power the fair for $544,000 on DC
Current that runs in a single direction
Not easily converted to higher or lower voltages
Direct Current is making a comeback due to expansion of solar and wind power
Delivers large amounts of power in far distances
Saves more energy and prevents greenhouse gas emissions
DC has three advantages that benefit today
Line losses of power are very small, it's easy to control, and can built with shorter towers so that risks with electromagnetic radiation won't occur.
However DC is very costly for companies
Created by Nikola Tesla
Credited by George Westinghouse
Claimed he could power the fair for $399,000
Awarded by Niagara Falls Power Company
Tesla was convinced AC would power all the East Coast
November 16th, 1896 Buffalo was lit up by AC
General Electric switched to supporting AC
Reverses current a certain number of times per second
Our electricity today is still predominately powered by alternating current.
Alternating current however has drawbacks
It is harder to control. It also creates more greenhouse gas emissions. AC wastes more energy when transferring energy for long distances compared to DC.
However, AC is cheaper than DC.