Backup Power for mains failure

SP Pro LG genny
What will you do if the mains power fails. It’s happening a lot on the South Coast at present due to the bush fires.

The options.
Battery and inverter backup - A battery system and associated inverter provides backup power to your home when the mains power fails.
Generator backup - A petrol or diesel generator is used to power your home.
Candles - Who needs power? It’s just like camping.

Most people want backup power to run their essential electrical items such as refrigeration, water pump, lights and electronics.
A backup power supply that can deliver around 3kW of power is a good average system to supply these needs. You might have to manage the run time of some of your appliances but you should not be too inconvenienced. If you need more power than this you’ll need a larger generator or battery system - readily available but more expensive.

The cheapest initial outlay option is to buy a decent petrol generator and have Bunya Solar install the correct control gear to allow you to switch selected house power circuits between mains power and generator power. The switch over can be automatic or manual. With an automatic system the house will switch over to generator once the generator has been plugged in and started. With a manual system the changeover switch must be operated by hand after the generator is plugged in and running. After the cost of a generator you’re probably looking at around $600 for Bunya Solar to install the control gear and generator input. This gives you a legal, safe and easy way to run your house from a generator.

The other option, besides candles, is to install a battery system and a battery inverter. Bunya Solar installs these systems in various configurations and power sizes. Our most common system includes a Selectronic Hybrid battery inverter and a lithium battery to suit your power needs. This system will integrate with your exisiting solar power system and as well as providing backup power during mains outages. It will also move unused solar power from the daytime to the nighttime to maximise your solar usage and limit your consumption of grid power.

Use our contact page to ask for a more specific quote to suit your needs. It would be handy if you could have an idea of how much power you’re using per day. You can get this information from your electricity bill.