Go Back

What's the Difference Between AC & DC Power?

Both alternating current (AC) and direct current (DC) provide power but they do so in dissimilar ways. As a result, they have not been in the habit of seeing eye-to-eye, so to speak. AC is an alternating current while DC is a direct current. In recent times, the gap between the two has become increasingly narrow. Each has its own distinct advantages and disadvantages that make them the ideal choice in certain situations. Learn more about AC and DC power sources, their differences, and how they are used today.

At Titan Plumbing And Electric, our experienced professionals are here to help you understand the difference between AC and DC power, as well as educate you on their advantages and disadvantages. Contact us today for more information or to book an appointment!

What Are The Differences Between AC Current And DC Current?

When Thomas Edison developed one of the first light bulbs, he used direct current (DC). Direct current is a constant flow of electric charge. It flows in one direction and can not be readily converted into lower or higher voltages. As a result of this limitation, scientists looked for other options. Nikola Tesla developed alternating current (AC), which is a type of electric charge that is constantly changing in direction. It can be easily converted into lower or higher voltages with the aid of a transformer. That was the beginning of the long-standing battle between AC and DC power sources. The search for royalties and prestige associated with which type of power source would be the ultimate winner hardened the stance of each camp.

Eventually, in the US, George Westinghouse teamed up with Tesla which led to AC being adopted as the main form of electricity used in most homes and businesses. Nowadays, DC appears to have gained a bit of ground as several applications benefit from the constant voltages that can easily be produced with this type of electrical current.

Your Application Determines Which To Choose Between AC And DC Current

The decision to use AC or DC power depends entirely on the application. Both AC and DC provide power but they do so in different ways. As a result, each is best suited for specific applications and environments.


When electricity enters your home or business, it does so through the main power line, which is delivering alternating current. This type of current has a distinct advantage over DC because it can be converted easily to lower or higher voltages using a transformer. It can also change direction. Your corded appliances like your washing machine and dryer, as well as your lamps and other electrical devices, are powered by AC.


Direct current is increasingly becoming more popular in a variety of applications such as computers, electronic gadgets, and toys. DC flows in one direction and provides a constant and stable electrical current.


Some appliances, like your laptop, require both AC and DC current for optimal performance. It gets AC from the outlet through the charging cord and then converts it to DC through the power adapter. This eventually recharges your laptop's battery. Some vehicles also rely on both AC and DC current for maximum performance.

What is The Future of AC And DC Current?

Although no one can say for sure, the future of AC and DC power sources looks bright. As technology continues to evolve, so will our reliance on both types of current. Advances in renewable energy have made it easier to produce clean electricity which can be used for a variety of applications. Most homes and offices will continue to utilize mostly AC power.

In addition, new technologies like solar cells, electric vehicles, and LEDs are being developed which means more need for DC. This will also certainly lead to more advancement in DC in terms of conversion to lower and higher voltages. In the end, we expect DC and AC to shake hands and work together in the years to come.

Ultimately, it’s important to understand the differences between AC and DC power sources before making a decision about which type of current is best for your needs. With the help of experienced professionals like those at Titan Plumbing And Electric, you can be sure to make the right decision for your home and business.

Contact an Expert Electrician For Help

When you need to determine which type of current is best for your application, contact the experts at Titan Plumbing And Electric. We can help advise you on the right solution for your needs and provide professional installation services if needed. Contact us today at (813) 680-2075 to book an appointment!