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Which should you choose, a generator or an uninterruptible power supply: the key factors

Natasha Kumar By Natasha Kumar Jul2,2024

Which should you choose, a generator or an uninterruptible power supply: key factors

At the same moment when you need stable and uninterrupted operation of electrical engineering, and the state of Ukraine's energy infrastructure due to Russian shelling leaves much to be desired better, it is worth thinking about an alternative solution.

UPS — Uninterruptible Power Supply) and generator — they are two different devices that are used to ensure uninterrupted power supply, but they have different principles of operation, purpose and features, we will tell you about them.

Uninterruptible power supply (UPS )

An uninterruptible power supply, also known as an Uninterruptible Power Supply (UPS), is a set consisting of a specific type of uninterruptible power supply and a battery. It is used to provide necessary equipment with backup power in the event that the network is out of power or its voltage does not meet the standards.

Such a system accumulates energy in chemical form, charging from the network in the presence of current. >Furthermore, the uninterruptible power supply operates in cyclic mode: it discharges, giving energy to connected devices, and then recharges again from the system.

Provides protection for sensitive electronic devices from voltage fluctuations, short-term power outages and other electrical anomalies.

It also provides power for a short period of time (from a few minutes to several hours depending on the model) for safely shut down or switch to a backup power source.

In addition, it contains built-in rechargeable batteries that can be charged from the mains.

In the event of a power outage, the uninterruptible power supply automatically switches to battery power, providing continuous power to connected devices.

Conveniently, it instantly switches to backup power. Voltage filtering and voltage surge protection. Limited operating time, depending on battery capacity.


This device is used to provide power for a long period of time, especially in  long-term power outages.

Designed to provide power to large facilities such as homes, businesses and other institutions.

It also runs on fuel, converting mechanical energy into electrical energy. Can function for a long time when fuel is available, and does not provide instant switching to standby power, there may be a slight delay during start-up. Needs regular maintenance and refueling.

Its minus in comparison with seamless is that it is quite loud, it can disturb you and your neighbors. The main differences and what to choose for yourself. ltr”>The uninterruptible power supply provides instant but short-term protection against power outages, while the generator provides long-term backup power, but with some start-up delay.

If you have access to diesel fuel and you are ready to refuel the unit from time to time, choosing a diesel generator may be a good idea.

It will provide economy and performance, although  can be noisy. At the same time, if you need to ensure the continuous operation of sensitive equipment without delays when switching to backup power, an uninterruptible power supply will be the optimal solution.

The choice between a generator and uninterruptible power supply depends on specific needs, conditions and priorities , such as duration of backup power, type of equipment that needs protection, and availability of a service resource.

For a cottage, apartment or office, a line-interactive UPS is the optimal solution. For example, if you often have short-term outages or significant voltage drops in your country, such a UPS will ensure uninterrupted operation of electrical appliances, preventing their damage. Connected devices will receive stable power, which is especially important for computers, TVs, routers and other sensitive devices.

Natasha Kumar

By Natasha Kumar

Natasha Kumar has been a reporter on the news desk since 2018. Before that she wrote about young adolescence and family dynamics for Styles and was the legal affairs correspondent for the Metro desk. Before joining The Times Hub, Natasha Kumar worked as a staff writer at the Village Voice and a freelancer for Newsday, The Wall Street Journal, GQ and Mirabella. To get in touch, contact me through my 1-800-268-7116

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