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Battery Backup & Blackout Protection

Battery Backup — Keep the Power On

When the grid goes down, most solar systems switch off too — leaving you in the dark even with panels on the roof. A properly designed battery backup system keeps your home or business running through a blackout: lights, fridge, internet, and the circuits that matter to you.

This is where a real electrical background counts. Backup done properly means the right battery and inverter, the right backup circuits wired into your switchboard, and automatic changeover that kicks in within moments of an outage. It’s electrical and control work — exactly what we specialise in.

What Battery Backup Gives You

 

  • Blackout protection: essential circuits keep running when the grid fails.
  • Automatic switchover: changeover happens in milliseconds — you may not even notice the outage.
  • Whole-home or partial: choose full-home backup or just the circuits that matter most.
  • Everyday savings too: store your solar and use it at night or during peak-price periods.

Why HES for Backup?

Backup systems live or die on the electrical work behind them — the switchboard, the backup circuits, the protection. As licensed industrial electricians, that’s our home ground. We design backup that works reliably when you actually need it, not just on paper.

Frequently Asked Questions

Will my battery back up my whole house?

It depends on your battery size and how the backup circuits are wired. Whole-home backup needs a larger battery and careful switchboard design; partial backup (fridge, lights, internet, essential circuits) is more affordable and covers what matters most in an outage. We'll size and wire it to suit your budget and priorities.

How fast does backup kick in during a blackout?

A properly installed backup system switches over automatically, typically within milliseconds — most people don't notice the outage at all. This depends on correct changeover and protection design, which is exactly the electrical work we specialise in.

Can I add backup to my existing solar system?

In most cases, yes — we'll assess your existing inverter and switchboard to determine the best way to add battery backup, whether that's a hybrid inverter or an AC-coupled battery system.