Solar & Battery Questions – Townsville

Straight answers to the questions Townsville homeowners ask us most, from rebates and battery sizing to cyclone-rated installs. No fluff, from a local team that does this every day.

Costs and rebates

How much does solar cost in Townsville?

Solar cost in Townsville depends on system size, panel and inverter brand, roof type, switchboard work and whether you add a battery. Most homes we quote now go 10–30 kW of panels, because air-con, pools and EVs use a lot of power. Ergon sets inverter and export limits for single-phase, two-phase and three-phase supply, and approval depends on your street’s network. A big panel array does not always need a three-phase upgrade. The federal solar rebate comes off the price upfront. Send a recent power bill through our contact page for a fixed quote.

How much does a solar battery cost in Townsville?

A solar battery in Townsville is priced by usable capacity (kWh), brand, backup needs, switchboard work and Ergon approval. The federal battery rebate takes around 30% off the first 14 kWh of usable capacity, then less above that, and it comes off your quote. The right size matches what your home uses from sunset to sunrise. We read that from your bill or smart meter. A bigger battery is not better if it never empties. See our battery systems or send us a power bill for an exact quote.

How much is the battery rebate in Queensland in 2026?

The battery rebate in Queensland in 2026 is the federal Cheaper Home Batteries scheme. It cuts the upfront cost by usable capacity — that is, how much power you can draw from the battery.

  • First 14 kWh: full rate (around 30% off)
  • 14 to 28 kWh: 60% of that rate
  • 28 to 50 kWh: 15% of that rate
Your install date sets the rate, not the day you sign. The rate steps down over time. More on our battery systems page.

Am I eligible for the battery rebate, and how do I claim it?

Most Townsville homes are eligible for the battery rebate. That covers adding a battery to existing solar, or installing both new. Three rules apply: the battery must be on the approved list, an accredited installer must fit it, and it must be able to join a virtual power plant (linked home batteries that support the grid). You do not have to join one. You fill in no forms. We create the certificates and take the rebate off your quote. See adding a battery to existing solar.

Is there a government rebate for solar panels in Queensland?

Yes. There is a government rebate for solar panels in Queensland through the federal Small-scale Renewable Energy Scheme. New systems earn certificates (STCs), and the installer takes their value off your quote upfront. How many you get depends on system size and your sun zone, so a 20 kW system earns roughly double a 10 kW one. The number drops each January until the scheme ends in 2030. Batteries get a separate federal rebate on top.

Choosing a system

What size are solar panels, and what size system do I need?

Solar panels for Townsville homes are about 1.7 to 1.8 metres by just over 1 metre (around 400–480 W). A 10 kW array needs about 22–25 panels. Each kW makes about 5 kWh a day here, so 10–30 kW suits homes with air-con, a pool or an EV. Ergon caps inverter size (kVA means rated output): 10 kVA on single-phase; 5 kVA solar plus 5 kVA battery inverter per phase on two-phase; 10 kVA per phase (up to 30 kVA) on three-phase. Basic export is usually 5 kW per phase; dynamic can reach 10 kW. Approval depends on your street’s network. Panels can run about a third larger than the inverter with no battery, and larger with one (maker limits apply). A DC-coupled battery stores clipped solar. More on our solar panels page.

How do I choose solar panels?

Choose solar panels for Townsville on four points. Pick a tier-one maker with an Australian office to back the warranty. Panels and racking must be rated for cyclone wind region C, and salt-mist rated if you are near the coast. Look for a long product and performance warranty (often 25 years) and a low heat loss, because roofs here get very hot. The panels must be on the CEC approved list for the rebate. The install matters as much as the panel. A great panel on poor racking is still a poor system.

Are Chinese solar panels any good?

Yes. Good Chinese solar panels are very good. Most of the world’s panels, including most tier-one brands, are made in China, so the country alone tells you little. What matters is the maker: tier-one status, an Australian office for the warranty, CEC approval, and ratings for cyclone wind and salt mist. Cheap no-name panels are the risk, not where they are made. See the panels we install.

Is solar worth it in Townsville?

Yes. Solar is worth it in Townsville for most homes. We get some of the strongest sun in Australia year-round, and air-con means a big share of your power is used in the day, when the panels produce. Feed-in credits are low, so the value comes from using your own power. That is why a 10–30 kW system with a battery works best. It keeps the house on solar into the evening. Send a power bill through our contact page and we will show you the numbers.

Batteries

Should I charge my battery from the grid off-peak on rainy days?

You can charge a solar battery from the grid off-peak on rainy days, but only on a time-of-use tariff with a cheap off-peak or midday rate. Most modern batteries can top up from the grid at the cheap rate when the forecast is poor, then run the house through the expensive evening peak. On a flat-rate tariff there is little to gain. Check your tariff first, and leave some room so the battery can still take any sun that turns up. More on our battery systems page.

Can I monitor my solar and battery on my phone?

Yes. You can monitor your solar and battery on your phone. Every solar and battery system we install has built-in app monitoring for most setups. It shows what your panels make, what the house uses, how full the battery is and what goes to or from the grid. That makes faults easy to spot early. We set the app up with you on install day. For smarter control we offer CatchPower, which automatically sends spare solar to loads like hot water or a pool pump so more power stays in the house.

Installers and warranties

Who is the best solar company in Townsville?

The best solar company in Townsville? Us, of course. We are a local Townsville team, so we design for the heat, cyclone season and Ergon’s connection rules, not a national template. We plan each 10–30 kW system carefully: panel layout, cable runs, battery placement out of the afternoon sun, and room to grow. And we are still here after the install, so our own electricians come back if something needs a look. Get in touch and see for yourself.

What workmanship warranty should a solar installer give?

A solar installer should give a written workmanship warranty, separate from the product warranties. Barra gives a 10-year install workmanship warranty on every job. Panel and battery makers usually cover much longer. Panels often last around 25 years under warranty. Inverters and batteries often sit around 10 years or more. Workmanship covers our own work: wiring, mounts, isolators and roof seals. That is where leaks and faults usually start. Because we are local, we come back ourselves.

Other common questions

Why is my power bill still high when I have solar?

Your power bill can stay high with solar when most of your use is after dark, when the panels are off, and feed-in credits are low. Other common causes are a system that is too small for today’s air-con, a fault or tripped inverter that has stopped production, or dirty or shaded panels. Check your inverter app first. A bigger system or a battery usually fixes the night-time gap. Send us your bill and we will take a look.

Why are people getting rid of their solar panels?

Most people are not getting rid of solar panels. They are upgrading. Systems from 10 or more years ago are often 1.5–5 kW with ageing inverters, and they are being swapped for bigger 10–30 kW systems, often with a battery. Others take panels off for a roof replacement. If your system is over 10 years old or your bills are creeping up, an upgrade is worth checking. See our solar panels page.

Still got a question?

Send us a recent power bill and we’ll size a system for your home, rebates and all.

Rebate details are a general guide and change over time. We confirm the exact rebate for your install date on your quote.