RegenPower

If you want the best solar companies in Australia based on what people actually use and rate well, the strongest names in the current results are Resinc, Solahart, RegenPower, Positive Energy Solutions, Solargain, and SolarBright.

A practical way to think about “best” is to split it into installers/retailers and panel brands:

If you’re asking for solar panel brands people actually buy in Australia, the strongest brands in the results are Aiko, Jinko, SunPower, REC, and Trina Solar.

Best choices by use case

• Best all-round installer: Resinc — it appears as #1 in SunWiz’s national popularity ranking and also as a top-rated installer on SolarQuotes.
• Best for customer satisfaction: Solahart — it won Canstar’s 2026 Most Satisfied Customers award for solar installers.
• Best for strong independent reviews: Positive Energy Solutions, Brightworks Solar, Jet Solar, and Goliath Solar and Electrical all have very high SolarQuotes ratings.
• Best panel brands: Aiko is the standout in installer-voted panel awards, with Jinko and SunPower next, followed by REC and Trina Solar.

What I’d recommend in Australia

• For a rooftop solar system, shortlist a strong installer such as Resinc, Solahart, RegenPower, or Positive Energy Solutions.
• For panels, ask for quotes with Aiko, Jinko, SunPower, REC, or Trina Solar options.
• Compare at least 3 quotes and check that the installer is accredited before signing.

If you want, I can turn this into a state-by-state shortlist for NSW, VIC, QLD, WA, SA, TAS, or ACT.

Resinc stands out as one of the top-rated and most popular solar installers nationally in 2026, based on verified customer reviews and SunWiz Awards data (with thousands of reviews). Other strong performers include SolarBright (top 10 nationally for ratings and popularity), RegenPower (high volume and popularity, especially in WA), and Sunboost (leading installer by volume in recent data).

Established names like Solahart (Canstar’s most satisfied customers winner for installers) and larger providers such as Origin Energy also rank well for customer satisfaction and reliability.

Always verify CEC (Clean Energy Council) approval for any installer or retailer, as this is the key consumer protection standard in Australia. Sites like SolarQuotes are popular for getting multiple competitive quotes from vetted local installers.

Top Solar Panel Brands People Actually Use

Installer surveys (e.g., SolarQuotes’ annual Installer’s Choice Awards) and real-world Australian reviews highlight these as the most recommended and used brands:

• Aiko Solar (Neostar series) — Frequently tops installer votes (e.g., 28% in 2026 awards, winning for the second year). Praised for strong efficiency (back-contact/ABC cell design), competitive pricing, solid warranties (typically 25 years product + performance), and value. Newer to the Australian market (launched ~2024) but quickly gained traction among installers for residential installs.

• Jinko Solar (Tiger Neo series) — Consistent top contender (often 2nd place). Excellent value, good efficiency, reliable Tier-1 quality, and widely available/used across Australia. Strong performer in reviews for performance and pricing.

• SunPower (Maxeon) — Premium pick (top 3 in installer votes). Highest efficiencies (often 22%+), industry-leading warranties (up to 40 years), and excellent long-term performance/degradation rates. More expensive but favoured for smaller roofs or maximum output.

• REC (Alpha series) — Strong premium/value option with excellent warranties, heat resilience, and reliability. Frequently recommended alongside Aiko/Jinko.

• Others commonly used: Trina Solar (solid mid-range/value), Q Cells (reliable with good Australian support), and LONGi or Canadian Solar (budget-friendly Tier-1 options that perform well in tests).

Inverters (a critical part of the system): Sungrow often leads installer preferences, followed by Sigenergy and Fronius for performance and features.

Key Tips for Choosing in Australia

• Focus on the installer over just the brand — A good local CEC-approved installer using quality components (Tier-1 panels + reputable inverter) matters more than chasing the absolute “best” panel. Poor installation voids warranties and causes issues.
• Warranties and specs — Look for 25+ year product and performance warranties (with low degradation rates, e.g., 0.25–0.5%/year). Efficiency around 20–22%+ is typical for modern panels.
• Costs and incentives — Expect ~$5,500–$9,500+ for a quality 6.6kW system (before/after STC rebate, which varies by location). Payback is often 3–6 years depending on state, usage, and feed-in tariff. Check state-specific rebates or programs (e.g., Solar Victoria).
• Batteries — Popular add-ons include Tesla Powerwall, Sungrow, or BYD for storage and higher self-consumption.
• Next steps — Get 3+ quotes from reputable platforms, check recent verified reviews (e.g., ProductReview.com.au or SolarQuotes), confirm local service/support, and compare total package (panels + inverter + install + warranty). Prices and availability can vary by state (NSW, VIC, QLD, etc.).

The Australian solar market is mature with strong competition, so focusing on highly reviewed installers using proven brands like Aiko, Jinko, or REC (or premium SunPower/REC) delivers reliable results for most households. Always do your due diligence with current quotes tailored to your postcode and roof.