Backup power
11 Mar 2022

This is defined as a device that generates instantaneous, uninterruptible electricity to a load when there is energy lost during an unscheduled equipment outage. The term UPS (uninterruptible power supply) is an often used term, but can sometimes refer to systems that supply A/C power, or systems that supply power for no more than 30 to 60 minutes.

A more general definition includes all types of power outputs and all backup times. Typical applications for backup power include telecommunications systems, information technology and computer systems, manufacturing processes, security systems, utility substations, and railway applications. Backup power systems are employed in cases where the loss of power results in a significant reduction in productivity or financial loss.


Home battery backup systems store energy, which you can use to power your house during an outage. Battery backups run on electricity, either from your home solar system or the electrical grid

Solar-powered battery back-up systems for grid power outages are a great alternative to fossil fuel generators. Battery back-up solar PV systems work like regular generator systems, except they also have the added benefit of powering your house with clean, renewable energy in the daytime

Storing backup energy from grids or excess power generated by your home’s solar energy system can prepare you for complete power outages. You’ll have the ability to keep the lights on, maintain food storage to prevent spoilage, keep necessary medical equipment running, and even use your laptop for work obligations

Did you know that….

The biggest UPS in the world can be found in Fairbanks, Alaska, in the United States of America. Delivering a massive 46 megawatts of power, it is capable of keeping the whole city and surrounding villages supplied with electricity during main outages.

More info on backup power here

You might also want to read:

Types of UPS systems

Difference between UPS systems and generators

How to size your backup power supply