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Aiko's all-back-contact (ABC) panels have grown quickly in Perth as a high-efficiency option, often shortlisted against established large-volume makers like LONGi. Aiko is a newer brand built around rear-contact cell technology; LONGi is one of the large, long-established mono manufacturers. This is a fair, spec-led comparison for WA homes — particularly relevant if roof space is tight or you want maximum output per panel.
Quick answer
Aiko tends to suit buyers who prioritise maximum efficiency or have constrained roof space, and are comfortable paying a premium for a newer high-efficiency brand. LONGi tends to suit buyers who prioritise efficiency and manufacturing scale from a large, established panel maker. Both ranges qualify for federal STCs in Perth (STC Zone 3); there's no separate WA panel rebate.
Sources: CEC register · federal STC scheme
| Topic | Aiko | LONGi |
|---|---|---|
| Tends to suit | Buyers who prioritise maximum efficiency or have constrained roof space, and are comfortable paying a premium for a newer high-efficiency brand. | Buyers who prioritise efficiency and manufacturing scale from a large, established panel maker. |
| WA rebate | Panels qualify for federal STCs (Perth is STC Zone 3); value depends on system size and the STC spot price. No separate panel rebate. | Panels qualify for federal STCs (Perth is STC Zone 3); value depends on system size and the STC spot price. No separate panel rebate. |
| How it's built | All-back-contact (ABC) N-type modules — contacts move to the rear of the cell for high efficiency and a clean all-black appearance. | N-type modules (the Hi-MO range) built on LONGi's own monocrystalline wafer supply chain. |
| Origin | Chinese-made — a newer but rapidly-growing panel manufacturer that has gained strong traction in the Perth market. | Chinese-made — a very large global manufacturer of monocrystalline wafers and panels, widely available in Perth. |
| Australian support | Growing Australian distribution presence. | Established Australian distribution presence. |
Specifications, pricing and eligibility change over time — always confirm the current details with your installer.
A rising high-efficiency challenger known for all-back-contact (ABC) panels at the upper end of residential efficiency.
A widely-respected panel brand positioned on efficiency and manufacturing scale, often shortlisted alongside the other large-volume makers.
Strengths
Aiko
LONGi
Things to weigh
Aiko
LONGi
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