Power backup is critical. There are a number of ways to provide backup power—UPS systems and generators are two popular options—but there is often confusion as to which will work best for your needs.

This Blog will help you understand the differences between these two systems and how they operate in order to help you choose which is most appropriate for your situation. In general, both generators and UPS solutions provide their users with backup power, but they serve different purposes and function differently from one another.

Understanding UPS and Generator Power Backup

Before diving deeper into this comparison, it’s important to have a basic understanding of the two systems. An Uninterruptible Power Supply (UPS) is an electronics device that automatically supplies an alternative source of power by using internal batteries as soon as the main utility power fails. Through the use of this technology, the UPS is able to switch to battery power (also called backup power) almost instantaneously, creating (in most cases) no interruption in the service to connected devices.

On the other hand, a generator uses a fuel source—diesel, gas, propane or natural gas—to provide an alternate form of electricity after utility power fails. Generators are automatic systems; they will not begin to function until after utility power fails or is interrupted. As a result, there will be a period of time between when the utility power fails and the generator comes online and starts operating.

Both of these systems are capable of providing backup power, but they do have different capabilities and applications. 

Power Transfer Rate: Instantaneous vs Deferred

One of the most critical differences to keep in mind when comparing the two technologies is the time it takes for each system to switch from using utility power to using backup power.

The UPS system switches to battery power in a matter of milliseconds. Therefore, computers, servers, projectors, audio equipment, etc., will continue to operate normally as soon as the main power supply goes offline. Generators do not provide electricity immediately. In most cases, it takes a few seconds to a few minutes for a generator to provide power when the power goes out. During that time, equipment may be shut down or restarted.

For events that require constant power, like conferences, live streaming, and presentations, this delay can interrupt the event.

Because a UPS will switch to battery power instantly, UPS systems are preferred for sensitive electronic devices and technology-based events.

Another factor you should consider in the comparison of UPS versus generator is noise level.

UPS systems are silent because they operate on battery power and through electronic circuitry. As a result, they are ideal for scenarios where noise must be kept to a minimum, such as:

• Business meetings

• Meetings, seminars and conferences

• office buildings

• Exhibitions indoors

Generators (powered by mechanical engines) produce a great deal of sound when they run. Even the most up-to-date generators produce noise that can cause disturbances for people working in quiet offices, schools, etc. Generators work well if it is an outdoor event, construction site, manufacturing plant, etc., but if you are holding a meeting in a business setting, then the best choice would be a UPS system because they are quiet.

Cost is another consideration when selecting a UPS versus a generator. Generally, due to the purchase of the machine, installation of the fuel system, and maintenance of its mechanical components, a generator will cost more than a UPS to purchase. Furthermore, because a generator requires fuel to run, it will create a continuous cash outflow.The cost of operating UPS systems is lower than the cost of operating a generator because they operate on rechargeable batteries. However, UPS units have a less storage capacity than generators which places a limitation on the backup power time.

UPS rental solutions can therefore provide a cost-efficient option for temporary power needs for non-permanent events as they do not have any long-term investment value.

When considering the cost of a UPS vs a generator, the cost is typically dependent upon the size of the backed-up power source and the length of time that the backup is necessary.

Best Uses for UPS Systems

UPS systems are best used in situations when immediate and uninterrupted power is required. Examples of common applications include:

• Business Events

• Corporations

• Data Centers

• Hospital and Medical Equipment

• Computer and Network Systems

• Exhibit Displays and Audio Visual Equipment

Since UPS receptacles instantly switch from power to battery, they protect sensitive electronic equipment from abrupt shutdowns and MOMENTARY fluctuations.

This type of system is extremely useful for events where the need for powered presentation devices (i.e. computers, microphones, projectors, digital displays) must be continually powered and active.

Best Uses for Generators

Generators are best used in circumstances when power backup is needed for an extended period.

Some common applications of generators include:

• Freedom of Events

• Construction Sites

• Large Industrial Businesses

• Power Outages

• Situations with insufficient electrical infrastructure

Generators are capable of running continuously without interruption provided that there is still gasoline to run them, which makes them great for large scale businesses who require a source of electricity for a larger period of time.Typically, a standby generator will be paired with an uninterruptible power supply while the generator is getting ready to start generating power as a consequence of the fact that most standby generators take some time to start producing electricity once a power failure occurs.

Combining UPS and Generators to Provide the Most Reliable Power Source

Many businesses and other organisations that have professional power requirements employ a UPS system and a generator as a combined solution.

A UPS provides an instantaneous source of backup power to keep critical power-dependent pieces of equipment functioning until the backup generator starts.

In industries that frequently employ both solutions, the following examples can be mentioned:

• Major Corporate Events

• Server Farms (Data Centers)

• Healthcare Facilities

• News Broadcast/ Televisions

By using both solutions, you will affordably be able to have a reliable, uninterrupted power supply no matter what happens.

Deciding On Which Backup Solution You Require

There is no one right answer for which backup solution is better, a UPS system or a generator, it will all depend on your specific needs for each.

When making that determination you need to consider multiple factors including:

• Event type & business type

• Length of time your backup power is needed for

• Quantity of sensitive electrical equipment

• Budget and operational costs

• Noise level restrictions

When your business is technology driven (retail, office, etc.), UPS systems will provide instant and silent backup power. When your business has extensive outdoor/long-term power outages, generators can be the best choice.

Understanding the differences between a UPS system & a generator will assist business & event planners in determining the best and most reliable source of power for their power backup needs.

Conclusion

Generators/UPS systems are critically linear for all the necessary backup power for events and business operations. The benefits of using a UPS system are that they provide a fast, silent and effective backup power source while a generator is typically more cost-effective and will offer longer-term backup power for larger facilities. The importance of correctly selecting a backup power source when planning your events or managing your company’s physical infrastructure cannot be overstated. This will eliminate any disruptions to your business operations and enable you to continue professional business operations.