Back-up Power UPS

UPS vs. Generator: What Are The Differences?

Find out the benefits of UPS and generator systems today, and discover how they can keep your networks protected.

UPS vs. Generator: What Are The Differences?

Understanding the various benefits of UPS devices and generators can be difficult for those not well versed in the matter. UPS (uninterruptible power supply) and generators are two important components that help keep the stability of the building during a power failure and are both different in their core features. Each of these solutions has its own purpose when it comes to powering a system in case of failure.

While UPSs are ideal for providing temporary power in the event of an outage, they are not designed to sustain extended or indefinite periods of time. Introducing a generator into your power system can help relieve your UPS device and bolster your power supply system.

UPS vs. generators; what are they?

UPS

Uninterruptible Power Supplies - or UPSs - provide backup power to your network of appliances and electronics in the event of a power outage. This allows you to adequately safeguard your electronic documents and shut down computers safely, reducing possible damage. These work on a discharge/recharge system, and as such still rely on the main power supply to recharge the battery.

Generator

Unlike a UPS, a generator powers your network using mechanical energy and converting it into electrical power. This energy can be destined for a variety of purposes, including mains supply. Interestingly, the source of mechanical energy needed to power the generator can come from a variety of sources, such as wind turbines and hydropower.

Understanding the difference

While both UPS and generators are both excellent back up power supply options, the ongoing debate between the two is in part fuelled by their vast differences. Gauging the variances between the two systems can help you make the best choice for your home or business.

The UPS is a battery-powered solution

Unlike the mechanically-powered generator, the UPS’s power source comes from a battery. While this means it can detect a power outage and offer near-immediate power coverage, it also means the device itself can only run for a limited amount of time. Conversely, a generator can keep your systems running for a longer time than a UPS, although you will need to find adequate mechanical energy to power your generator.

Differing start-up times

As mentioned, UPSs offer near-instant coverage against power blackouts thanks to their ability to detect outages. On the other hand, generators have a slightly longer start-up time as they need to be manually triggered. This may leave you without power for a short period of time, and as such, generators are less efficient in reducing immediate damage to your computers and other electronics.

Cost

When it comes to pricing these solutions, there are some notable factors to be taken into consideration. UPS devices are the most cost-effective immediate backup source to maintain power to your network. Low in initial pricing and with virtually no maintenance costs to consider, they offer an accessible solution for those looking to protect devices.

Contrarily, generators are more of an investment piece that will keep your systems protected in the long run. With a longer running time and an independent mechanical energy source, generators offer a greater energy supply in the event of an outage. However, it’s worth noting that with the majority of generators operating on liquid fuels, they do incur an additional cost and will require maintenance.

So what is the best solution?

If you’re looking to provide your home or business with the best possible coverage for an extended period of time, the ideal solution would be to combine both devices. Using a UPS in conjunction with a generator will allow you to have immediate coverage in the event of a power surge or blackout, while also being able to keep your devices running throughout. It’s important to find the best devices for your needs and to ensure you get the best protection against any potential surges. For more information on how to use your UPS in conjunction with your generator, read our dedicated blog post.

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.

UPS vs. Generator: What Are The Differences?