Australia has the highest rooftop solar uptake in the world. Whether you're buying your first system or upgrading, here's the current state of play.
Stats updated: 2026-05-31
In May 2026, a standard 6.6kW solar system in Australia typically costs between AUD $3,999 and $8,200 after the federal Small-scale Technology Certificate (STC) rebate is applied at the point of sale. For larger 10kW systems, expect to pay between AUD $9,000 and $13,500 post-rebate. The federal STC rebate for a 6.6kW system in 2026 is approximately AUD $1,600 nationally, though this can range up to $3,200 in certain zones like NSW, and its value decreases annually until 2030. Additionally, the Victorian government offers a state-specific rebate of up to AUD $1,400 for eligible residents, while NSW currently relies solely on the federal STC scheme. The expanded federal Cheaper Home Batteries Program, effective from May 2026, provides STCs for battery storage, with each kilowatt-hour (kWh) earning 6.8 STCs for the remainder of 2026, equating to roughly AUD $252 per kWh for the first 14 kWh of capacity.
Yes, solar remains a highly worthwhile investment for most Australian households in 2026, despite feed-in tariffs (FiTs) generally being lower than in previous years. While FiTs typically range from 3 to 12 cents per kWh across states, retail electricity prices continue to climb, often sitting between 30 and 40 cents per kWh. This significant difference means the primary financial benefit of solar now comes from self-consumption – using the electricity you generate to power your home and avoid purchasing expensive grid power – rather than exporting excess energy. A well-designed 10kW system can still achieve a payback period of approximately 5 to 7 years, offering nearly two decades of free electricity given typical panel warranties.
For solar panels in 2026, premium brands highly regarded in Australia include SunPower (Maxeon 6), REC (Alpha Pure-RX), Jinko Solar (Tiger Neo), LONGi (Hi-MO X6), Trina Solar (Vertex S+), Canadian Solar, AIKO, and Winaico, with Trina Solar Vertex S+ often cited for best value. When it comes to inverters, Fronius is widely considered the most reliable standalone option, while Sungrow offers an excellent balance of performance and affordability, winning #1 Residential and Commercial Inverter in the 2026 SunWiz Awards. Other top inverter brands include Enphase (microinverters, ideal for shaded or complex roofs), SolarEdge (optimizers), GoodWe (budget-friendly with hybrid options), and SigEnergy (known for next-gen hybrid technology and strong blackout protection).
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Australia's federal solar battery rebate has changed as of May 1, 2026. Understand the new tiered structure and how it impacts your upfront costs.
Federal battery rebates under the Cheaper Home Batteries Program have changed from May 1, 2026. Discover how new tiered STC values impact savings for Australian homeowners.
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AEMO's Q1 2026 report reveals record grid-scale and rooftop solar generation, alongside surging battery contributions, driving down wholesale electricity prices across Australia. Understand the implications for your energy costs.
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Australia's federal home battery rebate scheme changes significantly on May 1, 2026, with reduced STC values and tiered support for larger systems. Understand how this impacts your upfront costs and eligibility.
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