AC vs DC

What’s the difference between AC & DC or alternating current and direct current?
Keep scrolling to find out!
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Serving Savannah, Georgia and the surrounding areas since 1972. Incorporated in 1975.

Alternating vs. Direct Current

“So it appears the War of the Currents may not be over yet. But instead of continuing in a heated AC vs. DC battle, it looks like the two currents will end up working parallel to each other in a sort of hybrid armistice.” Lantero, A. The War of the Currents: AC vs. DC Power. Energy.gov

Quick Facts on Alternating Current

Alternating current is electric current whose direction fluctuates.
It was developed by Nikola Tesla.
AC power is used in your home and workplaces.
Equipment & home appliances use AC power.
Alternating current more efficient than DC power.
AC power easily converts to low or high voltages and loses less voltage over long distances

Quick Facts on Direct Current

Direct current is electric current that flows in one direction.
It was developed by Thomas Edison
DC power is used for charging batteries & consumer electrics.
Electric vehicles use direct current.
Solar panels produce DC power.
Direct current doesn’t convert to higher or lower voltages easily.
It is more stable than AC.

Energy.gov has a fun and interactive page all about Edison and Tesla. check it our for videos, timelines, quizzes, and more about alternating and direct currents.

Above and Beyond

05/29/2025

David and Malachi came out to install a fan. After review David determined installing the Fan as initially discussed was not possible due to missing wire conduit/pipe in the walls. I asked if he could take a look and see if there was an alternative. after a quick review he found a perfect alternative and they got everything taken care of within the same time frame while carefully moving and replacing my furniture and TV that was in the way of the new solution. They very easily could have stuck with the initial assessment but worked to find a solution.

Brian Kliebert

Why Choose Joyner Electric and Security

Our purpose is to empower customers to keep them out of the dark by delivering expert electrical service. We are professional, work efficiently, are committed to our work, we do the right thing, and think positively.