Black out protection

Black out protection

Keeping the lights on during a blackout

Rooftop solar for you home

What is Blackout Protection?

Blackout protection refers to your inverter and battery system's capacity to keep your house powered up when the grid goes down, as may happen during a blackout. You'll be able to power your home using a solar and battery system in case the electricity goes out, keeping essential circuits such as lights, power outlets, and refrigerators going.
Home at night with lights on during a power outage

How does it work?

If you have a battery enabled with blackout protection (or Backup), there is nothing you need to do when the power goes out. The battery will detect that the grid is down, go into blackout mode and begin to discharge power to the essential loads. The switchover periods vary depending on the battery manufacturer; however, they are often only a few seconds.

Home battery on an exterior wall at night

Does my battery have Blackout Protection?

Despite most solar batteries being equipped to support blackout protection, enabling this feature requires additional electrical works including re-wiring essential circuits. SBG offer customers a chance to opt-in to this feature either at the time of installation or down the track.

Supporting Blackout Protection

How long will it last?

This would depend on the type of battery system being installed – AC Coupled or Hybrid, and your energy usage trends. The circuits you have connected to the battery and the amount of electricity being drawn during a blackout will ultimately determine the duration.

The former battery type provides the convenience of charging from surplus solar generated by existing PV inverter(s) on-site. The amount of energy in the battery and the overall load at the moment the grid goes down will determine how long your backup will last.

In addition to this, the latter battery type may also enable you to benefit from solar generation during a blackout, provided they are connected directly to the hybrid inverter thereby charging your batteries.

Comfortable home interior at night with backup power

What appliances can I run during a blackout?

Essential circuits such as lights, charging points and fridges are often turned on first, and customers can benefit from having them connected to the backup. Running energy-intensive appliances is not recommended to ensure that the stored energy lasts for a long time. The amount of energy you use and the amount of energy the battery stores will determine how long the battery will offer backup power.

Let's consider a 5kW Hybrid Inverter with a 5kWh battery as an example, the maximum power supplied to your backup circuits would be limited to 5 kW (21.7A). Therefore, you can consider backing up 2-3 light(s) and 1 power circuit while ensuring the maximum demand does not exceed the Inverter backup rating.

What is a Blackout Power Socket?

A Blackout power socket refers to an industrial combination switched socket outlet that leverages your inverter and battery system's capacity to keep your house powered up when the grid goes out, in the event of a blackout.

Industrial combination switched socket outlet for blackout backup

How does it work?

If you have a battery system installed with a Blackout Power Socket, you will be able to plug in an extension lead to keep the power going to an appliance (or circuit). The battery will detect that the grid is down, go into blackout mode and begin to discharge power automatically.

Diagram: solar battery connected to external blackout power socket and appliances
Couple reviewing energy documents at home

Does my battery have a Blackout Power Socket?

Despite most solar batteries being equipped to support backup power, enabling this feature requires additional electrical works including installing the Combination Switched Socket outlet. Solar Battery Group offer customers a chance to opt-in to this feature either at the time of installation or down the track.