How much does solar cost in NSW?

Straight to the numbers - with their conditions

At the time of writing (early 2026), fully installed quality-tier systems from licensed NSW retailers - tier-1 panels, reputable inverters, SAA-accredited installation, after the STC discount - commonly land in these market-wide bands: around $5,500-8,500 for 6.6 kW, roughly $8,000-12,500 for 10 kW, and about $10,500-16,000 for 13 kW. Home batteries typically run $1,000-1,600 per usable kWh installed before the federal rebate, with the rebate then removing a meaningful slice of that for the first 50 kWh.

Treat every one of those figures as market context, not a price list - ours or anyone's. They shift with rebate step-downs, hardware cycles and exchange rates, and your property can sit legitimately outside them in either direction. What follows is what actually moves the number.

The six things that move your price

System size is the obvious one, but the per-kilowatt price falls as systems grow - a 13 kW system is nowhere near double a 6.6. Then: your phase (three-phase inverters cost more; some larger designs require them), your roof (tile takes longer than tin; steep, multi-face or two-storey roofs add labour and safety cost), your switchboard (older boards sometimes need upgrading to safely accept generation - a real cost that should be identified before contract, not sprung on installation day), your hardware tier (the spread between value and premium inverters is real money), and the rebate timing - STCs decline each January and the battery rebate steps down on its published schedule, so identical systems price differently across a year boundary.

None of these are visible from a postcode. Which brings us to the uncomfortable truth about advertised prices.

Why a fixed price before seeing your roof is a guess

Any '6.6 kW for $X' advertisement has to assume a roof: single-storey, tin, north-facing, healthy switchboard, no access issues. If you match the assumption, fine. If you don't, the gap gets recovered - through variations on the day, through quietly cheaper hardware, or through compressed installation hours. The advertised price wasn't dishonest exactly; it was a best case wearing a price tag.

The engineered alternative inverts the order: measure the property, then price it. That's why we publish our packages, sizes and products openly but not prices - and why our design tool exists to give you a real indicative number against your actual usage in minutes, with every assumption shown.

Cheap, market, premium: what the tiers actually are

Below the market bands sits the cheap tier - and our quality-and-expertise article details exactly which invisible layers get removed to hit those prices, because it's never the panels on the brochure. Above the bands sits genuine premium: European inverters, top-tier panels, complex roofs done properly. Both can be rational purchases; what matters is knowing which trade you're making.

The most expensive system, consistently, is the cheap one that underdelivers for 25 years or fails at year six with nobody left to call.

Getting your number

Run the design tool with a recent bill - it sizes against your usage, applies rebates at current rates and shows the working. Then an engineer verifies roof, shading and switchboard before anything becomes a fixed price. That final number is the only one that deserves the word 'quote' - and if the honest answer is that solar doesn't stack up for your property, that's the answer you'll get.