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ASM vs Longi Solar - solar panel manufacturer comparison

ASM
Australia Founded 2009
Read the ASM review
VS
Longi Solar
China Founded 2000 Tier 1
Read the Longi Solar review
At a glance

Longi Solar has the broader catalog (255 vs 1 models). Longi Solar leads on peak efficiency at 25.00%. Longi Solar leans bifacial (40% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
1 255
Highest power
170 Wp 670 Wp
Best efficiency
16.0% 25.0%
Average efficiency
16.0% 22.6%
Bifacial share
0% 40%
Average warranty
- 28 yrs
01

The two companies

Company facts, not datasheet figures
ASM

Australian Solar Manufacturing (ASM) is a small Australian solar panel assembler that produces crystalline monocrystalline modules domestically using components sourced from Germany, Japan, the USA, and China. The company focuses on providing locally assembled PV modules tailored to Australian conditions, supporting...

Founded
2009
Headquarters
Hallam, Victoria, Australia
Employees
1-10
Longi Solar

LONGi Green Energy Technology Co., Ltd. is a world-leading solar technology company that manufactures monocrystalline silicon wafers and modules. The company is committed to providing high-efficiency and reliable clean energy solutions for large-scale power plants, various industries, and households. LONGi aims to be...

Founded
2000
Headquarters
Xi'an, Shaanxi, China
Annual capacity
85-90 GW/year
Employees
37,853
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric ASM Longi Solar
Catalog & Power
Panel Models 1 255+254
Max Power 170 W 670 W+500 W
Avg Power 170 W 544 W+374 W
Efficiency
Max Efficiency 16.00% 25.00%+9.00 pp
Avg Efficiency 16.00% 22.65%+6.65 pp
Reliability & Warranty
Avg Temp Coefficient -0.438%/°C -0.291%/°C+0.147
Bifacial Share 0 (0%) 101 (40%)+40 pp
Avg Warranty - 27.8 yrs

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Longi Solar skews to higher efficiency: 43% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Longi Solar offers more 600W+ panels (38% of lineup)

ASM cell technology
Share of their models by cell architecture
Longi Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>N-type</strong> (42%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

ASM, which stands for Australian Solar Manufacturing, is a small domestic manufacturer based in Australia and is generally described as one of the only companies producing solar panels locally on Australian soil. It operates at a niche scale and does not appear on BloombergNEF's Tier 1 bankability list, meaning it lacks the independent project-finance track record that institutional lenders require. LONGi Solar, by contrast, is a Chinese manufacturer headquartered in Xi'an, founded in 2000, and has held continuous BNEF Tier 1 status through at least Q3 2025, with the company also achieving a double Tier 1 ranking - covering both PV modules and energy storage - in Q1 2026. LONGi shipped more than 63 GW of solar cells and modules in the first nine months of 2025, representing close to 24% year-on-year growth, placing it firmly among the world's largest module producers. In terms of institutional footprint, LONGi is in a different category entirely.

ASM's product range is positioned primarily as locally made panels for the Australian residential and small commercial market, appealing to buyers who prioritize domestic supply chains and local warranty support. Cell technology specifics are not publicly confirmed in available sources, though the company's catalog is far narrower than global players. LONGi's Hi-MO series spans a wide range of applications: the Hi-MO 7 targets utility-scale ground mounts using n-type TOPCon cells, the Hi-MO 9 and Hi-MO X10 back-contact modules serve large commercial and C&I rooftop segments with confirmed efficiencies up to 24.8%, and the newly launched Hi-MO S10 brings heterojunction back-contact technology to residential rooftops at 25% module efficiency.

For most buyers in 2025, LONGi is the clear default - it offers bankable technology, a broad product family confirmed by independent lab tests, and the supply depth needed for projects of any scale. ASM is a reasonable consideration only when local manufacturing provenance is a firm procurement requirement, such as for certain government-funded Australian projects, and where lower volumes and a less established bankability record are acceptable trade-offs.

Generated by Claude Sonnet · 2026-05-19

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 174 Longi Solar offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.