Every system below uses 475 W panels and CEC-approved equipment, installed by SAA-accredited installers. The common residential and small-commercial sizes can be designed and priced instantly in our online tool. Larger commercial and custom configurations are engineered on request - the tool covers the standard range, not the limit of what we build. What you won't find here is a price, because an honest one comes from your usage, roof and tariff, not a brochure.
475 W panels with Sungrow (SG RS and RT series) or Fronius (Primo and Symo GEN24) inverters. 3 kW to 13 kW is available single or three phase; 15 kW and above is three phase only. Rebate: STCs applied upfront to every size. Savings potential scales with how much of the generation you use yourself - which is exactly what the design tool works out from your bill.
| System | Panels | Phase | Indicative generation | Typically suits |
|---|---|---|---|---|
| 3 kW | 7 × 475 W | Single or three phase | ~4,300 kWh/yr* | Smaller homes, modest daytime use |
| 5 kW | 11 × 475 W | Single or three phase | ~7,100 kWh/yr* | Smaller homes, modest daytime use |
| 6.6 kW | 14 × 475 W | Single or three phase | ~9,400 kWh/yr* | Smaller homes, modest daytime use |
| 8 kW | 17 × 475 W | Single or three phase | ~11,400 kWh/yr* | Typical family homes |
| 10 kW | 22 × 475 W | Single or three phase | ~14,200 kWh/yr* | Typical family homes |
| 13 kW | 28 × 475 W | Single or three phase | ~18,500 kWh/yr* | High usage, EV or battery-ready |
| 15 kW | 32 × 475 W | Three phase | ~21,400 kWh/yr* | Small to medium business premises |
| 20 kW | 43 × 475 W | Three phase | ~28,500 kWh/yr* | Small to medium business premises |
| 30 kW | 64 × 475 W | Three phase | ~42,700 kWh/yr* | Larger commercial daytime load |
These sizes are quoted by our engineers rather than through the online tool - the design depends on switchboard capacity, network approval, roof structure and your demand profile, which need a person to assess. Everything else on this page applies: 475 W panels, CEC-approved equipment, SAA-accredited installation.
| System | Panels | Phase | Indicative generation | Typically suits |
|---|---|---|---|---|
| 50 kW | 106 × 475 W | Three phase | ~71,200 kWh/yr* | Heavy daytime operations - warehousing, manufacturing, cold storage |
| 100 kW | 211 × 475 W | Three phase | ~142,400 kWh/yr* | Large commercial and industrial sites (the 100 kW STC ceiling) |
Systems up to 100 kW earn STCs applied upfront. Above 100 kW the scheme moves to LGCs, which we can also arrange - see our commercial article for what changes.
*Indicative Sydney generation at typical yields; your figure depends on roof orientation, pitch and shading and is modelled in your design. Hybrid inverters can be specified now for a battery later.
Any solar size above, on a hybrid inverter, paired with storage sized to your evening load. Rebates: STCs on the solar and the federal battery rebate on the storage - applying to the first 50 kWh of capacity, stepping down on a published schedule. This is where the gap between what you pay for power and what you're paid for exports works hardest for you.
Hybrid inverters from FoxESS (H1 and H3 Smart series) and Sungrow, or Tesla Powerwall 3 with its integrated solar inverter. Solar from 3 kW to 13 kW single phase, and up to 20 kW three phase.
| Usable capacity | Typically suits |
|---|---|
| 14 kWh | Modest evening load, or a first step with room to expand |
| 21 kWh | Typical family home covering most of the evening peak |
| 28 kWh | High evening usage, or backup across more circuits |
| 35 kWh | Large homes, EV charging overnight from stored solar |
| 42 kWh | Very high usage, or small business premises |
| 49 kWh | Approaching the 50 kWh rebate ceiling |
| 56 kWh | Beyond the rebate ceiling - the first 50 kWh attracts the incentive |
Capacities are modular, so the ladder steps in even increments. We size to your evening load and surplus, not to the biggest number that fits. Where it physically goes is set by AS/NZS 5139 - what that rules in and out.
Already have solar? A retrofit battery keeps the energy you're currently exporting for cents. The federal battery rebate applies (first 50 kWh), and backup for essential circuits is an optional configuration on all three ranges.
Retrofit storage from FoxESS (CQ7 modular range) and Tesla Powerwall 3, in the same capacity ladder as a combined system.
| Usable capacity | Typically suits |
|---|---|
| 14 kWh | Modest evening load, or a first step with room to expand |
| 21 kWh | Typical family home covering most of the evening peak |
| 28 kWh | High evening usage, or backup across more circuits |
| 35 kWh | Large homes, EV charging overnight from stored solar |
| 42 kWh | Very high usage, or small business premises |
| 49 kWh | Approaching the 50 kWh rebate ceiling |
| 56 kWh | Beyond the rebate ceiling - the first 50 kWh attracts the incentive |
Capacities are modular, so the ladder steps in even increments. We size to your evening load and surplus, not to the biggest number that fits. Where it physically goes is set by AS/NZS 5139 - what that rules in and out.
Not sure which fits? Our battery sizing article walks through the logic, or the design tool runs it against your actual bill.
The sizes above cover most homes and smaller business premises. Plenty of what we install doesn't fit a standard row - and that work is engineered from scratch rather than picked off a list.
Systems beyond the standard range, including sites approaching and exceeding the 100 kW STC threshold where LGC registration becomes the right path. Designed around your operating hours and tariff, including demand charges.
Multiple roofs or buildings, mixed orientations, ground-mount arrays, shade-constrained roofs, carports and sites needing structural assessment or a three-phase supply upgrade.
Multi-battery configurations, larger commercial storage, backup designs covering more than essential circuits, and systems specified around future EV fleets or planned expansion.
Because a published price is either padded or dishonest. The true price depends on your roof, phase, switchboard, export limit and usage - so we publish the packages, sizes and products openly, and generate your price through the design tool or an engineer review, with rebates itemised and the working shown. Read the full article: Why we built the Solar Design Tool →
Panels are 475W tier-1 modules (LONGi, Jinko, Trina, JA Solar). Inverters are Sungrow, Fronius or hybrid FoxESS. Batteries are FoxESS, Sungrow or Tesla Powerwall 3 - and we're a Tesla Powerwall Certified Installer. Everything we install is CEC-approved, fitted by SAA-accredited installers. Read the full article: Solar certifications and standards, explained for normal people →
The ideal system size depends on your daily energy usage, roof space, and future needs (like EVs or batteries). We analyse your energy bills and design a system that maximises savings without over- or under-sizing. Read the full article: How a solar system actually works, end to end →
Tell us when suits and what it's about. One of our engineers will call you - no call centre, no hard sell.