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LONGi Solar Panel Prices in South Australia

A 6.6kW LONGi solar system is $6,600-$9,900 installed in South Australia before rebates. After South Australia rebates and federal STCs, most households pay around $3,200-$6,500 out of pocket. LONGi is the world's largest monocrystalline silicon producer and a top-3 panel manufacturer. Their Hi-MO series panels use proprietary HPBC cell technology for industry-leading efficiency. Known for investing heavily in R&D and manufacturing quality control. A strong mid-to-premium option.

LONGi 6.6kW price in South Australia (2026)

Installed, before rebates
$6,600-$9,900
SA rebates + STCs
~$3,400
Out of pocket (after stack)
~$3,200-$6,500

Based on a 6.6kW system at $1,000-$1,500 per kW. Out-of-pocket assumes federal STCs plus South Australia's available solar rebate, applied by your installer at point of sale. Estimated output for a 6.6kW LONGi system in South Australia: ~9,829 kWh/yr, saving ~$1,286-$1,704/yr.

15yr
Product warranty
25yr
Performance warranty
22.8%
Panel efficiency
mid-range
Market tier

LONGi solar rebates in South Australia

Federal

Small-scale Technology Certificates (STCs)

Point-of-sale discount on your LONGi system. Value scales with system size, climate zone and the STC spot price.

~$3,200
on 6.6kW
State

SA Retailer Energy Productivity Scheme (REPS)

SA households. Applied through participating retailers.

$200-$500
estimated value

LONGi panels available in South Australia

LONGi Hi-MO 6 445W

Panel wattage
445W
Efficiency
22.3%
Degradation
0.4%/yr
Type
HPBC Monocrystalline

LONGi Hi-MO 7 590W

Panel wattage
590W
Efficiency
22.8%
Degradation
0.35%/yr
Type
HPBC Monocrystalline

Solar prices across South Australia

Local solar pricing and free quotes in major South Australia areas.

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Solar costs in South AustraliaFind installers in South AustraliaAll South Australia solar rebates

LONGi solar in South Australia: FAQ

How much does a LONGi solar system cost in South Australia?

A 6.6kW LONGi solar system costs $6,600-$9,900 fully installed in South Australia before rebates ($1,000-$1,500 per kW). After rebates and STCs, most South Australia households pay around $3,200-$6,500 out of pocket.

What solar rebates can I claim in South Australia?

On top of federal STCs (worth about $3,200 on a 6.6kW system), South Australia households can claim SA Retailer Energy Productivity Scheme (REPS), taking total support to around $3,400. A LONGi system generates roughly 9,829 kWh a year at South Australia sun hours, saving about $1,286-$1,704 a year on power.

Is LONGi a good solar brand?

LONGi is the world's largest monocrystalline silicon producer and a top-3 panel manufacturer. Their Hi-MO series panels use proprietary HPBC cell technology for industry-leading efficiency. Known for investing heavily in R&D and manufacturing quality control. A strong mid-to-premium option. LONGi is best suited to homeowners wanting top-tier technology at a mid-range price point. It sits at the mid-range end of the Australian market and carries a 15-year product and 25-year performance warranty.

Where can I get LONGi solar installed in South Australia?

PumpSwap matches you with local South Australia installers who quote on LONGi panels. Submit one request and compare up to three quotes from installers covering your suburb, with STCs and rebates already factored in.

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