--- title: "ASM vs Panasonic - Brand Comparison | ComparePV" description: "Compare ASM vs Panasonic solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/asm-vs-panasonic" --- # ASM vs Panasonic Panasonic has the broader catalog (25 vs 1 models). Panasonic leads on peak efficiency at 22.20%. Panasonic leans bifacial (16% of lineup). ## The two companies | Attribute | ASM | Panasonic | | --- | --- | --- | | Country | Australia | Japan | | Headquarters | Hallam, Victoria | Kadoma, near Ōsaka | | Founded | 2009 | 1918 | | Employees | 1-10 | 9,500+ | | Annual capacity | | 1+ GW/year | | Tier 1 | no | | | Listed | | Tokyo Stock Exchange: 6752 | | Website | [https://www.australiansolarmanufacturing.com.au](https://www.australiansolarmanufacturing.com.au) | [https://www.panasonic.com/global/energy/](https://www.panasonic.com/global/energy/) | 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... Panasonic is a global leader in the development of innovative technologies and solutions for wide-ranging applications in the consumer electronics, housing, automotive, industry, communications, and energy sectors. The company was founded in 1918 by Konosuke Matsushita and has been committed to enhancing the quality... ## Catalog & Power | Measure | ASM | Panasonic | Margin | | --- | --- | --- | --- | | Panel Models | 1 | 25 | +24 | | Max Power | 170 W | 430 W | +260 W | | Avg Power | 170 W | 367 W | +197 W | ## Efficiency | Measure | ASM | Panasonic | Margin | | --- | --- | --- | --- | | Max Efficiency | 16.00% | 22.20% | +6.20 pp | | Avg Efficiency | 16.00% | 20.68% | +4.68 pp | ## Reliability & Warranty | Measure | ASM | Panasonic | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.438%/°C | -0.267%/°C | +0.171 | | Bifacial Share | 0 (0%) | 4 (16%) | +16 pp | | Avg Warranty | - | 25.0 yrs | | ## Efficiency distribution | Efficiency band | ASM | Panasonic | | --- | --- | --- | | \<20% | 1 (100.0%) | 6 (24.0%) | | 20-21% | 0 | 8 (32.0%) | | 21-22% | 0 | 8 (32.0%) | | 22-23% | 0 | 3 (12.0%) | ## Power distribution | Power band | ASM | Panasonic | | --- | --- | --- | | \<400W | 1 (100.0%) | 19 (76.0%) | | 400-499W | 0 | 6 (24.0%) | ## Cell technology Dominant cell tech: **HJT** (88%) | Technology | ASM | Panasonic | | --- | --- | --- | | Unknown | 1 (100.0%) | 0 | | HJT | 0 | 22 (88.0%) | | PERC | 0 | 3 (12.0%) | ## 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, Panasonic | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [EVPV430HK2](https://comparepv.com/panel/panasonic-evpv430hk2) | 430 | 22.2 | -0.240 | Monocrystalline | | 2 | [EVPV420HK2](https://comparepv.com/panel/panasonic-evpv420hk2) | 420 | 21.7 | -0.240 | Monocrystalline | | 3 | [EVPV410H](https://comparepv.com/panel/panasonic-evpv410h) | 410 | 22.2 | -0.260 | Monocrystalline | | 4 | [EVPV410HK](https://comparepv.com/panel/panasonic-evpv410hk) | 410 | 22.2 | -0.260 | Monocrystalline | | 5 | [EVPV400H](https://comparepv.com/panel/panasonic-evpv400h) | 400 | 21.6 | -0.260 | Monocrystalline | | 6 | [EVPV400HK](https://comparepv.com/panel/panasonic-evpv400hk) | 400 | 21.6 | -0.260 | Monocrystalline | | 7 | [EVPV390HK](https://comparepv.com/panel/panasonic-evpv390hk) | 390 | 21.1 | -0.260 | Monocrystalline | | 8 | [EVPV390H](https://comparepv.com/panel/panasonic-evpv390h) | 390 | 21.1 | -0.260 | Monocrystalline | | 9 | [EVPV380](https://comparepv.com/panel/panasonic-evpv380) | 380 | 21.7 | -0.260 | Monocrystalline | | 10 | [EVPV370](https://comparepv.com/panel/panasonic-evpv370) | 370 | 21.2 | -0.260 | Monocrystalline | ## Summary ASM does not appear in any major solar industry database, BloombergNEF Tier 1 list, or trade-press coverage as a recognized panel manufacturer. Web searches consistently return either ASM Solar - an Australian residential installation and service company - or ASM, a Dutch semiconductor equipment firm unrelated to photovoltaics. Without verifiable manufacturer-level data on ASM, only a qualitative note is possible on that side: if ASM is intended as a regional installer or small-scale brand, it is not yet operating at a scale that attracts independent analyst coverage, and no bankability or production-capacity figures can be cited in good conscience. Panasonic, by contrast, has a well-documented solar history. Founded in Japan in 1918 as Matsushita Electric, it pioneered heterojunction technology - branded HIT, for heterojunction with intrinsic thin-layer - with the world's first commercially available HJT panels in 1997. Over the following decades those modules earned a premium reputation for high efficiency, excellent temperature coefficients, and long-term power retention. Its EverVolt residential line, however, was not self-manufactured: after Panasonic ceased in-house module production in 2021, EverVolt panels were made under contract by REC Group. On April 28, 2025, Panasonic North America announced a full exit from solar and battery storage, ending the EverVolt line entirely. Existing 25-year AllGuard warranties remain honored by the parent company. For a buyer in 2025, Panasonic solar is effectively a legacy product - no new panels are being produced or sold, though existing installed systems with active warranties remain supported. Without a credible manufacturer profile for ASM, a head-to-head verdict is not possible. Buyers seeking high-efficiency HJT modules in the Panasonic tradition should look instead at REC Group (which made EverVolt panels) or other active HJT specialists. \---LINKS--- \- https://pv-magazine-usa.com/2025/04/30/panasonic-exits-solar-and-battery-storage-ending-decades-long-journey/ \| Panasonic exits solar and battery storage, ending decades-long journey \| article \- https://www.solarreviews.com/blog/are-panasonic-solar-panels-the-best-modules-to-install-on-your-home \| 2025 Panasonic Solar Panels - Expert Review \| review \- https://cleantechnica.com/2025/04/30/panasonic-steps-away-from-solar-storage-ends-evervolt-line/ \| Panasonic Steps Away From Solar and Storage, Ends EverVolt Line \| article \- https://solarbuildermag.com/news/evervolt-not-forevervolt-panasonic-discontinues-solar-and-battery-storage-line/ \| EverVolt not ForeverVolt - Panasonic discontinues solar and battery storage line \| article Sources: \- \[2025 Panasonic Solar Panels: Expert Review - SolarReviews\](https://www.solarreviews.com/blog/are-panasonic-solar-panels-the-best-modules-to-install-on-your-home) \- \[Panasonic exits solar and battery storage, ending decades-long journey - pv magazine USA\](https://pv-magazine-usa.com/2025/04/30/panasonic-exits-solar-and-battery-storage-ending-decades-long-journey/) \- \[Panasonic Steps Away From Solar & Storage, Ends EverVolt Line - CleanTechnica\](https://cleantechnica.com/2025/04/30/panasonic-steps-away-from-solar-storage-ends-evervolt-line/) \- \[EverVolt not ForeverVolt: Panasonic discontinues solar and battery storage line - Solar Builder\](https://solarbuildermag.com/news/evervolt-not-forevervolt-panasonic-discontinues-solar-and-battery-storage-line/) \- \[ASM Solar reviews - ProductReview.com.au\](https://www.productreview.com.au/listings/asm-solar) 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 Panasonic](https://comparepv.com/ae-solar-vs-panasonic) - [ASM vs AEET](https://comparepv.com/asm-vs-aeet) - [AIKO vs Panasonic](https://comparepv.com/aiko-vs-panasonic) - [ASM vs AKCOME](https://comparepv.com/asm-vs-akcome) - [ARTsolar vs Panasonic](https://comparepv.com/artsolar-vs-panasonic) --- Source: https://comparepv.com/asm-vs-panasonic Not in this file, on the page: the distributions above drawn as charts.