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Frequently Asked Questions
Q — How much can I save by installing solar?
Savings vary depending on your usage, system size, and tariff, but most households see a 50–70% reduction in their power bills. For businesses, savings can be even greater due to higher daytime usage.
Q — What size solar system do I need?
It depends on your energy use, roof space, and future needs (such as EV charging or adding batteries). Our team designs a custom solution based on your power bills and site conditions.
Q — How long does installation take?
Residential systems are usually installed within 1–2 days. Larger commercial projects may take weeks depending on size and complexity.
Q — Why should I add a battery to my solar system?
Batteries let you store excess solar power for use at night or during grid outages. They reduce your reliance on the grid, protect you from rising power prices, and improve your energy independence.
Q — Can I add a battery to my existing solar system?
In most cases, yes. We can retrofit batteries to many existing systems, depending on your inverter type and system age.
Q — What happens in a blackout?
With a properly designed battery system, your home or business can keep running during a blackout. We design systems to support critical loads or whole-site backup, depending on your requirements.
Q — Can Sunoxi build fully off-grid solar systems?
Yes. We have extensive experience in designing and building stand-alone power systems for remote properties, stations, and businesses across Northern Australia.
Q — Are off-grid systems reliable?
Absolutely. We combine solar, battery storage, and backup generation (such as diesel or LPG) to ensure round-the-clock reliability even in remote or harsh environments.
Q — What brands do you use?
We only work with proven Tier 1 solar panel, inverter, and battery manufacturers such as [insert Sunoxi’s preferred brands here], all backed by strong warranties and local support.
Q — How long is the warranty on my system?
Most solar panels carry a 25–30 year performance warranty, inverters 5–12 years, and batteries 10+ years. Sunoxi also provides a workmanship warranty on all installations.
Q — How much does solar cost?
Residential systems typically start from around $5,000, while larger commercial projects vary depending on size. We provide fixed-price quotes with no hidden extras.
Q — Do you offer finance?
Yes. We partner with leading finance providers to offer flexible repayment options for both residential and commercial customers.
Q — Are there government rebates available?
Yes. Both Darwin and Adelaide customers can access Small-scale Technology Certificates (STCs) which reduce the upfront cost of solar. Additional state or local incentives may apply, and we can help you claim them.
Q — What happens if something goes wrong with my system?
Sunoxi provides full warranty support and ongoing service. If there’s an issue, we handle the warranty process with the manufacturer on your behalf.
Q — Do you offer system monitoring?
Yes. All our systems include online monitoring so you can track performance and savings in real time. We also offer professional monitoring for commercial clients.
Q — Do you maintain systems after installation?
Yes. We recommend servicing your solar system every 2–3 years to maintain peak efficiency. Sunoxi offers ongoing maintenance packages for both residential and commercial systems.