A good starting point is your electricity bill. Your usage, supply charges, feed-in tariff, roof space, and when you use power all affect the result. SolarLine can review your bill and recommend a system size that suits your usage pattern rather than oversizing blindly.

In many cases, yes. Older solar systems can often be paired with a battery using an AC-coupled battery system, which works alongside the existing inverter.

Some sites may still need extra equipment, monitoring, or inverter changes. We can assess your existing hardware and advise whether keeping it makes sense.

A feed-in tariff is the credit your retailer may pay when your solar system sends unused electricity back to the grid. The amount varies by retailer and plan, so it is worth checking before and after changing your system.

Not always. Backup depends on the battery, inverter, wiring, and which circuits are connected. Many systems are designed to support essential loads such as lights, fridge, internet, phone charging, and selected medical devices.

Large appliances like ducted air conditioning, ovens, and electric hot water may need a larger custom backup design.

Usually, expansion depends on roof space, inverter capacity, network limits, and your current system layout. If the existing inverter cannot support more panels, options may include upgrading the inverter or adding a separate system.

It is also smart to ask your retailer whether a system change could affect any feed-in tariff arrangement you currently have.

Three-phase homes can still use battery storage, but the best setup depends on how you want the system to operate. Some batteries work on one phase, while others are designed for broader three-phase integration.

SolarLine can check your meter, switchboard, and energy goals before recommending the right option.

Rebates and incentives change over time and can depend on your state, property, chosen products, installer requirements, and eligibility rules. SolarLine can explain the incentives available at the time of your quote and help you understand what evidence or approvals may be needed.

Timing varies based on product availability, approvals, weather, installer scheduling, and network requirements. Straightforward solar jobs are often faster, while solar plus battery projects can take longer because the design and approval process is more involved.

We will keep you updated once your quote is approved and your installation is being scheduled.

Sometimes. Battery expansion depends on the brand, model, inverter, available capacity, and whether the system supports additional battery modules. Some systems are modular, while others need a separate battery or equipment upgrade.

Most modern systems include an app or online portal showing solar production, home usage, battery charge, grid import/export, and alerts. During handover, we can help set up monitoring so you know how to read the key numbers.

No. A hybrid inverter is one way to connect a battery, but it is not the only path. If your current inverter is not hybrid, an AC-coupled battery may still be suitable. If you already have a hybrid inverter, compatibility with the battery brand and capacity still needs to be checked.

Warranty support depends on the issue. Product faults may be handled under manufacturer warranties, while workmanship issues relate to the installation. If you are unsure where to start, contact SolarLine and we can help identify the right support pathway.

Yes, this can be possible. The design needs to consider inverter limits, roof layout, switchboard capacity, network rules, and whether adding equipment changes your retailer arrangement. A combined upgrade can often be designed around your existing system where it is still performing well.

Net metering is the way your solar generation is balanced against your electricity use for billing. Solar power used in the home reduces what you buy from the grid, and any eligible exported energy may receive a credit based on your retailer plan.

Most customers choose solar to reduce electricity bills, use more renewable energy, improve energy independence, and make better use of their roof space. Adding a battery can increase self-use by storing excess solar for later in the day.

After you submit an enquiry, we review your needs, recommend suitable products, and explain any incentive steps that may apply. Where documentation or approvals are needed, we guide you through the process so you know what to provide and when.