Skip to Content
chevron-left chevron-right chevron-up chevron-right chevron-left arrow-back star phone quote checkbox-checked search wrench info shield play connection mobile coin-dollar spoon-knife ticket pushpin location gift fire feed bubbles home heart calendar price-tag credit-card clock envelop facebook instagram twitter youtube pinterest yelp google reddit linkedin envelope bbb pinterest homeadvisor angies

There are two different kinds of electricity at your home: AC and DC. For many years, there was a fierce AC vs DC power debate, but eventually engineers determined that both were very useful, but for different purposes. Here is an overview of what each kind is and how it’s used.

DC Power

DC stands for “direct current.” Electric currents travel in one direction from one terminal to the other, retaining a fairly constant value. Thomas Edison tried to make this the standard form of electrical power, but it’s difficult to convert DC power into higher or lower voltages, or to make it travel long distances. Batteries are a common DC power supply.

AC Power

AC stands for “alternating current.” With AC power, electric currents reverse their direction at regularly recurring intervals. While Thomas Edison was promoting DC power, Nikolai Tesla was promoting AC power. This was known as the “war of the currents,” with royalties and relevance on the line. Eventually, George Westinghouse was swayed by Tesla, and partnered with him to bring AC power to homes and businesses. AC is still the most common form of electrical power.


In the context of this blog post at least, AC/DC refers not to electric guitars but to a hybrid power arrangement using both alternating current and direct current. A common example is the power adapter to your laptop, which converts the AC power from your wall into DC power.

For all your electrical needs, call Hoover Electric. Established in 1980, Hoover Electric, Plumbing, Heating, and Cooling has been serving customers in Southeast Michigan ever since, offering courteous, professional service. Because we offer all the services you need for residential maintenance under one roof, we’re able to offer extremely competitive pricing while maintaining great customer service and guaranteed satisfaction. When you’re looking for top-quality electrical, plumbing, heating, or cooling services in Clinton Township and Troy, MI, contact Hoover through our website or call 586-232-9204 today.