Best Solar Panel Brands Available in Perth 2025

Not all solar panels are equal. Perth receives some of the highest solar irradiance in the world, which means both excellent production — and faster degradation of inferior panels. Here's what to know about solar brands in 2025.

Tier 1 Solar Panels

The "Tier 1" designation comes from Bloomberg New Energy Finance and indicates manufacturers with solid financial backing and bankability. Popular Tier 1 brands sold by Perth installers include: REC Solar (Norwegian, exceptional quality and Perth-appropriate heat tolerance), LG Solar (though their solar division closed in 2022, panels are still under warranty), Jinko Solar (China's largest manufacturer, good value), Longi Solar (high-efficiency monocrystalline), Trina Solar (reliable mid-range), and Canadian Solar (strong all-rounder).

Inverter Brands

The inverter converts DC power from panels to AC for your home. Quality matters: Fronius (Austrian, industry-leading reliability), SMA (German, excellent for larger systems), SolarEdge (with power optimisers for shading issues), Enphase (microinverters, panel-level monitoring), Sungrow (Chinese, good value).

What to Prioritise

Warranty: Look for 25-year product and performance warranty on panels (not just 10 years). Check the manufacturer still has a local Australian presence to honour the warranty. For inverters, 10 years minimum. Efficiency: Higher efficiency panels produce more from the same roof area — important for smaller roofs. Temperature coefficient: How much output drops in heat. Perth summers make this critical.