Is Your Home Ready For A Power Outage? A Sunshine Coast Guide To Backup Generators

A home backup generator can keep selected appliances running during an outage, provided it is correctly sized and safely connected. The starting point is deciding what you need to keep powered, then having an electrician assess the equipment and connection your property requires.

When the lights go out, the fridge might be your first thought. But a water pump, communications equipment or essential business refrigeration could matter just as much. Those priorities help determine whether a portable unit or a permanently installed system makes sense.

Choosing a generator involves more than comparing power ratings. Here are the practical questions worth working through before you buy backup power for your home or business.

What Needs to Keep Running?

Backing up selected essentials is a different brief from powering everything as usual. Before comparing generators, think about what an interruption would actually affect and which appliances you could comfortably leave off.

Your priorities might include:

• Refrigeration and food storage.
• A pump supplying household water.
• Selected lights and charging points.
• Internet equipment, while recognising the external network may also lose power.
• Equipment needed to keep a business operating.

For example, a household relying on tank water may need to prioritise its pressure pump alongside the fridge. Another household might have different requirements. Give your electrician a clear list so the assessment reflects how you use the property.

Portable or Permanently Installed?

Portable generators can supply suitable appliances directly or connect to selected building circuits through an appropriately installed generator connection and changeover arrangement. Their flexibility comes with practical responsibilities, including safe outdoor placement, fuel handling and manual operation.

A permanently installed generator stays in a designated location and connects through a purpose-designed electrical installation. Some systems offer automatic starting and transfer when mains power fails, but that functionality needs to be confirmed in the proposed system.



Ask what the installation includes, which circuits it will supply and what you need to do during an outage. Fuel type, available space and the need for someone to be on site also affect the choice. A fixed installation should not be assumed to provide automatic operation or uninterrupted power.

Why Generator Size Needs Assessment

Generator capacity needs to account for both normal operation and the extra power some equipment draws when starting. Fridges, pumps and air conditioners can have starting requirements well above their running demand.

That means adding up everyday running figures alone can give an incomplete picture. Your electrician needs to consider which appliances may operate together, motor starting loads and the generator’s continuous output rating.



An undersized unit may struggle or overload. A larger unit also needs to suit the application, rather than simply having the biggest advertised output. We recommend assessing the intended loads before choosing equipment, particularly where pumps, refrigeration or sensitive electronics are involved.

Safe Connection Comes First

A generator must never be plugged into an ordinary household wall outlet to supply the building. This can cause backfeeding, sending electricity into the supply network and endangering line workers and neighbours.

Connecting a generator to fixed wiring requires licensed electricians and a suitable changeover arrangement that keeps generator power isolated from the electricity network. The installation must meet the relevant electrical standards and electricity distributor requirements.

Queensland’s Electrical Safety Office generator guidelines explain the distinction between powering individual appliances and supplying building circuits. Have the connection assessed before buying a generator, rather than assuming a unit will suit your existing switchboard or safety switches.

Where Can It Safely Operate?

Placement is part of choosing a generator. Exhaust contains carbon monoxide, a poisonous gas you cannot see or smell, so generators must operate outdoors, away from openings where fumes could enter occupied spaces.



A garage is not a safe operating location, even with the door open. Weather protection must also preserve ventilation and follow the manufacturer’s instructions. Covering a generator in a way that traps exhaust or heat creates another hazard.

Access for servicing, separation from combustible materials and noise affecting nearby properties also need consideration. Discuss these details during the site assessment. If there is no suitable operating position, that needs resolving before the equipment arrives.

What If You Have Solar?

Solar panels do not automatically mean you will have electricity during a blackout. A typical grid-connected solar system shuts down when mains power fails as a safety measure.



Adding a generator introduces another power source, so compatibility needs checking across the installation. Existing solar equipment, any battery system and the proposed changeover controls all need to work together safely.

Give your electrician the details of your inverter and battery, if you have one. Ask which equipment will operate during an outage and whether the solar system will remain isolated or form part of an approved backup arrangement. Avoid assuming a generator can simply be added to whatever system is already installed.

Backup Power for Businesses

Commercial backup planning starts with identifying what downtime would interrupt. A business protecting refrigerated stock has different priorities from an office needing communications equipment or a workshop with machinery.

For a hypothetical food business, maintaining selected refrigeration may take priority over running every appliance. The assessment should establish the loads involved, including motor starting requirements, and how long the business needs those loads supported.



Ask about the transfer process too. A generator may involve an interruption before power becomes available, even with automatic controls. If equipment cannot tolerate that gap, raise it during planning. Staff responsibilities, fuel availability, servicing access and a clear outage procedure also belong in the discussion.

Will It Be Ready When Needed?

A generator needs ongoing attention even when outages are infrequent. Follow the manufacturer’s servicing and testing schedule, with checks suited to the equipment, its fuel system and how it is used.



For portable units, safe fuel storage and refuelling are particularly important. Store fuel in appropriate labelled safety containers away from ignition sources. Turn the generator off and let it cool before refuelling.

Arrange testing and maintenance before relying on the system in an emergency. Commercial operators should also keep responsibilities clear so servicing is not overlooked between outages. Owning a generator is only part of being prepared; knowing it is maintained and having an agreed operating procedure matter too.

Plan Your Backup Before an Outage

The right home backup generator starts with a clear assessment of essential loads, safe placement and electrical compatibility. For businesses, the same process should account for the equipment and processes most affected by downtime.



Here at Brenden Wilson Electrical, we provide generator sales, installation and maintenance across the Sunshine Coast. Whether you are planning household backup or protecting essential commercial operations, contact our team to discuss your property and request a quote.

Frequently Asked Questions