--- title: "ASM vs Bisol - Brand Comparison | ComparePV" description: "Compare ASM vs Bisol solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/asm-vs-bisol" --- # ASM vs Bisol Bisol has the broader catalog (12 vs 1 models). Bisol leads on peak efficiency at 23.50%. ## The two companies | Attribute | ASM | Bisol | | --- | --- | --- | | Country | Australia | Slovenia | | Headquarters | Hallam, Victoria | Prebold | | Founded | 2009 | 2004 | | Employees | 1-10 | 200-500 | | Annual capacity | | \<1 GW/year | | Tier 1 | no | no | | Listed | | | | Website | [https://www.australiansolarmanufacturing.com.au](https://www.australiansolarmanufacturing.com.au) | [https://www.bisol.com](https://www.bisol.com) | 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... BISOL Group is a European manufacturer of high-quality photovoltaic modules headquartered in Prebold, Slovenia. Founded in 2004, it is considered Europe's leading authentic solar module producer with a production capacity of 750 MW and products distributed in over 120 countries. The company operates debt-free and has... ## Catalog & Power | Measure | ASM | Bisol | Margin | | --- | --- | --- | --- | | Panel Models | 1 | 12 | +11 | | Max Power | 170 W | 580 W | +410 W | | Avg Power | 170 W | 475 W | +305 W | ## Efficiency | Measure | ASM | Bisol | Margin | | --- | --- | --- | --- | | Max Efficiency | 16.00% | 23.50% | +7.50 pp | | Avg Efficiency | 16.00% | 21.75% | +5.75 pp | ## Reliability & Warranty | Measure | ASM | Bisol | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.438%/°C | -0.291%/°C | +0.147 | | Bifacial Share | 0 (0%) | 1 (8%) | +8 pp | | Avg Warranty | - | 29.6 yrs | | ## Efficiency distribution Bisol skews to higher efficiency: 33% of lineup is 23%+ | Efficiency band | ASM | Bisol | | --- | --- | --- | | \<20% | 1 (100.0%) | 2 (16.7%) | | 20-21% | 0 | 1 (8.3%) | | 22-23% | 0 | 5 (41.7%) | | 23%+ | 0 | 4 (33.3%) | ## Power distribution | Power band | ASM | Bisol | | --- | --- | --- | | \<400W | 1 (100.0%) | 2 (16.7%) | | 400-499W | 0 | 4 (33.3%) | | 500-599W | 0 | 6 (50.0%) | ## Cell technology Dominant cell tech: **PERC** (58%) | Technology | ASM | Bisol | | --- | --- | --- | | Unknown | 1 (100.0%) | 0 | | PERC | 0 | 7 (58.3%) | | TOPCon | 0 | 5 (41.7%) | ## Top panels, ASM | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [ASM170M](https://comparepv.com/panel/australian-solar-manufacturing-asm170m) | 170 | 16.0 | -0.438 | Monocrystalline | ## Top panels, Bisol | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 | 23.5 | -0.290 | Monocrystalline | | 2 | [BGO 570](https://comparepv.com/panel/bisol-bgo-570) | 570 | 23.1 | -0.290 | Monocrystalline | | 3 | [BGO 560](https://comparepv.com/panel/bisol-bgo-560) | 560 | 22.7 | -0.290 | Monocrystalline | | 4 | [BBO 520](https://comparepv.com/panel/bisol-bbo-520) | 520 | 23.2 | -0.290 | Monocrystalline | | 5 | [BBO 510](https://comparepv.com/panel/bisol-bbo-510) | 510 | 22.8 | -0.290 | Monocrystalline | | 6 | [BBO 500](https://comparepv.com/panel/bisol-bbo-500) | 500 | 22.3 | -0.290 | Monocrystalline | | 7 | [BDO 460](https://comparepv.com/panel/bisol-bdo-460) | 460 | 23.0 | -0.290 | Monocrystalline | | 8 | [BDO 450](https://comparepv.com/panel/bisol-bdo-450) | 450 | 22.5 | -0.290 | Monocrystalline | | 9 | [BDO 440](https://comparepv.com/panel/bisol-bdo-440) | 440 | 22.0 | -0.290 | Monocrystalline | | 10 | [BDO 410](https://comparepv.com/panel/bisol-bdo-410) | 410 | 20.5 | -0.290 | Monocrystalline | ## Summary ASM's identity as a solar panel manufacturer is difficult to pin down through major industry databases and credible trade press. Web searches for the brand surface either an Australian solar installation firm or ASM Pacific Technology - a Dutch-listed equipment supplier for the electronics and PV manufacturing sector rather than a module brand in its own right. Without verifiable public data on production capacity, cell technology, or bankability status, ASM can only be described as a brand with a limited institutional footprint in publicly available solar industry reporting. Bisol Group, by contrast, is a clearly identifiable European PV module manufacturer headquartered in Latkova Vas, Slovenia, founded in 2004. The company reports a production capacity of 750 MW and exports approximately 98% of its output to more than 140 countries. Bisol has actively distanced itself from the BloombergNEF Tier 1 framework - publishing a position statement arguing it is not a reliable quality indicator - which means Bisol is not typically cited on mainstream Tier 1 lists, though it holds its own quality credentials through TÜV and other European certification bodies. On institutional footprint, Bisol is the better-documented and more independently verifiable of the two brands. Bisol's product offering centers on residential and commercial rooftop applications, where it has historically differentiated on quality rather than price. The company is known for thicker toughened glass, tight power-sorting practices designed to reduce mismatch losses, and a claimed field claim rate of just 0.01%. In 2025, Bisol introduced the BGO series, built on G12R TOPCon cell technology and capable of outputs up to 580 W, targeting residential, commercial, and light utility-scale projects where European component traceability and FER-X compliance matter. ASM's technology mix and target use cases remain unverifiable from credible third-party sources. For a typical buyer in 2025, Bisol is the safe recommendation between these two brands, specifically for buyers in Europe or markets where European manufacturing origin carries regulatory or reputational value. Its quality credentials, TOPCon transition, and two decades of documented production history make it a reasonable premium-tier choice for rooftop and small commercial installations. ASM cannot be meaningfully recommended or dismissed in the same comparison given the absence of confirmed independent data on its modules, capacity, or bankability standing. \---LINKS--- \- https://www.bisol.com/post/bisol-position-statement-bloombergnef-tier-1-list-not-a-measure-of-pv-module-quality \| BISOL position statement on BloombergNEF Tier 1 list \| article \- https://www.solarfeeds.com/biz/bisol-group-d-o-o/ \| BISOL Group company overview - production capacity and Tier 1 status \| article \- https://balkangreenenergynews.com/solar-module-maker-bisol-to-triple-production-capacity-with-new-slovenian-plant/ \| Bisol to triple production capacity with new Slovenian plant \| article \- https://www.bisol.com/post/bisol-highlights-2025-technology-partnerships-and-milestones \| BISOL Highlights 2025 - technology, partnerships and milestones \| article \- https://energypal.com/best-solar-panels-for-homes/bisol-group \| BISOL Group review - EnergyPal 2025 \| review Sources: \- \[BISOL Position Statement: BloombergNEF Tier 1 List\](https://www.bisol.com/post/bisol-position-statement-bloombergnef-tier-1-list-not-a-measure-of-pv-module-quality) \- \[BISOL Company Overview - SolarFeeds\](https://www.solarfeeds.com/biz/bisol-group-d-o-o/) \- \[Bisol to triple production capacity - Balkan Green Energy News\](https://balkangreenenergynews.com/solar-module-maker-bisol-to-triple-production-capacity-with-new-slovenian-plant/) \- \[BISOL Highlights 2025\](https://www.bisol.com/post/bisol-highlights-2025-technology-partnerships-and-milestones) \- \[BISOL Group - EnergyPal\](https://energypal.com/best-solar-panels-for-homes/bisol-group) Written by claude-sonnet from the figures above. ## Other comparisons - [ASM vs A.B. Energy](https://comparepv.com/asm-vs-a-b-energy) - [AE Solar vs Bisol](https://comparepv.com/ae-solar-vs-bisol) - [ASM vs AEET](https://comparepv.com/asm-vs-aeet) - [AIKO vs Bisol](https://comparepv.com/aiko-vs-bisol) - [ASM vs AKCOME](https://comparepv.com/asm-vs-akcome) - [ARTsolar vs Bisol](https://comparepv.com/artsolar-vs-bisol) --- Source: https://comparepv.com/asm-vs-bisol Not in this file, on the page: the distributions above drawn as charts.