--- title: "Selfa vs Trina Solar - Brand Comparison | ComparePV" description: "Compare Selfa vs Trina Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/selfa-vs-trina-solar" --- # Selfa vs Trina Solar Trina Solar has the broader catalog (340 vs 34 models). Trina Solar leads on peak efficiency at 24.80%. Trina Solar leans bifacial (43% of lineup). ## The two companies | Attribute | Selfa | Trina Solar | | --- | --- | --- | | Country | Poland | China | | Headquarters | Bydgoszcz | Changzhou | | Founded | 1992 | 1997 | | Employees | | | | Annual capacity | | | | Tier 1 | no | yes | | Listed | | | | Website | [https://www.selfa-pv.com](https://www.selfa-pv.com) | [https://www.trinasolar.com](https://www.trinasolar.com) | ## Catalog & Power | Measure | Selfa | Trina Solar | Margin | | --- | --- | --- | --- | | Panel Models | 34 | 340 | +306 | | Max Power | 550 W | 760 W | +210 W | | Avg Power | 404 W | 520 W | +117 W | ## Efficiency | Measure | Selfa | Trina Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.60% | 24.80% | +2.20 pp | | Avg Efficiency | 20.48% | 21.71% | +1.23 pp | ## Reliability & Warranty | Measure | Selfa | Trina Solar | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.348%/°C | -0.302%/°C | +0.046 | | Bifacial Share | 3 (9%) | 145 (43%) | +34 pp | | Avg Warranty | 27.8 yrs | 28.2 yrs | +0.4 yr | ## Efficiency distribution Trina Solar skews to higher efficiency: 22% of lineup is 23%+ | Efficiency band | Selfa | Trina Solar | | --- | --- | --- | | \<20% | 13 (38.2%) | 22 (6.5%) | | 20-21% | 8 (23.5%) | 57 (16.8%) | | 21-22% | 7 (20.6%) | 83 (24.4%) | | 22-23% | 6 (17.6%) | 102 (30.0%) | | 23%+ | 0 | 76 (22.4%) | ## Power distribution Trina Solar offers more 600W+ panels (34% of lineup) | Power band | Selfa | Trina Solar | | --- | --- | --- | | \<400W | 16 (47.1%) | 28 (8.2%) | | 400-499W | 12 (35.3%) | 142 (41.8%) | | 500-599W | 6 (17.6%) | 54 (15.9%) | | 600-699W | 0 | 72 (21.2%) | | 700W+ | 0 | 44 (12.9%) | ## Cell technology Dominant cell tech: **PERC** (74%) Dominant cell tech: **TOPCon** (73%) | Technology | Selfa | Trina Solar | | --- | --- | --- | | PERC | 25 (73.5%) | 75 (22.1%) | | N-type | 9 (26.5%) | 6 (1.8%) | | TOPCon | 0 | 248 (72.9%) | | Unknown | 0 | 11 (3.2%) | ## Top panels, Selfa | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [SV144M.5.3-550](https://comparepv.com/panel/selfa-sv144m-5-3-550) | 550 | 21.3 | -0.360 | Monocrystalline | | 2 | [SV144M.5.3-545](https://comparepv.com/panel/selfa-sv144m-5-3-545) | 545 | 21.1 | -0.360 | Monocrystalline | | 3 | [SV144M.5.3-540](https://comparepv.com/panel/selfa-sv144m-5-3-540) | 540 | 20.9 | -0.360 | Monocrystalline | | 4 | [SV144M.5.1-540](https://comparepv.com/panel/tcl-zhonghuan-sv144m-5-1-540) | 540 | 20.9 | -0.360 | Monocrystalline | | 5 | [SV120M.3.4-500](https://comparepv.com/panel/selfa-sv120m-3-4-500) | 500 | 22.6 | -0.300 | Monocrystalline | | 6 | [SV120M.2.4-500](https://comparepv.com/panel/selfa-sv120m-2-4-500) | 500 | 22.6 | -0.300 | Monocrystalline | | 7 | [SV120M.3.4-480](https://comparepv.com/panel/selfa-sv120m-3-4-480) | 480 | 21.7 | -0.300 | Monocrystalline | | 8 | [SV108M.2.4-450](https://comparepv.com/panel/selfa-sv108m-2-4-450) | 450 | 22.5 | -0.300 | Monocrystalline | | 9 | [SV108M.3.4-450](https://comparepv.com/panel/tcl-zhonghuan-sv108m-3-4-450) | 450 | 22.5 | -0.300 | Monocrystalline | | 10 | [SV108M.2.4-440](https://comparepv.com/panel/selfa-sv108m-2-4-440) | 440 | 22.0 | -0.300 | Monocrystalline | ## Top panels, Trina Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 | 24.5 | -0.260 | Monocrystalline | | 2 | [TSM-NEG21C.20Q-755](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-755) | 755 | 24.3 | -0.260 | Monocrystalline | | 3 | [TSM-NEG21C.20Q-750](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-750) | 750 | 24.1 | -0.260 | Monocrystalline | | 4 | [TSM-NEG21C.20Q-745](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-745) | 745 | 24.0 | -0.260 | Monocrystalline | | 5 | [TSM-NEG21C.20-740](https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg21c-20-740) | 740 | 23.8 | -0.290 | Monocrystalline | | 6 | [TSM-NEG21C.20 740](https://comparepv.com/panel/trina-solar-tsm-neg21c-20-740) | 740 | 23.8 | -0.290 | Monocrystalline | | 7 | [TSM-NEG21C.20Q-740](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-740) | 740 | 23.8 | -0.260 | Monocrystalline | | 8 | [TSM-NEG21C.20-735](https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg21c-20-735) | 735 | 23.7 | -0.290 | Monocrystalline | | 9 | [TSM-NEG21C.20 735](https://comparepv.com/panel/trina-solar-tsm-neg21c-20-735) | 735 | 23.7 | -0.290 | Monocrystalline | | 10 | [TSM-NEG21C.20Q-735](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-735) | 735 | 23.7 | -0.260 | Monocrystalline | ## Summary Selfa is a Polish manufacturer headquartered in Szczecin, with industrial roots dating to 1932, though its photovoltaic module production line - built using Japanese NPC automation technology - launched only in 2012. The company is 100% Polish-owned, operates at a regional rather than multi-gigawatt scale, and does not appear on BloombergNEF Tier 1 bankability lists. Trina Solar, founded in 1997 and headquartered in Changzhou, China, ranks among the largest PV module manufacturers in the world, with module production capacity reported at approximately 95 GW per year and a stated target of 120 GW by end of 2025. Trina Solar holds confirmed Tier 1 BNEF status as of Q1 2025, giving it a substantially stronger institutional footprint for project financing worldwide. Selfa's portfolio is primarily oriented toward residential rooftop installations and small commercial applications within Poland. Its modules carry VDE and KIWA Cermet Italia certifications, and the company maintains a local distribution and service network that simplifies warranty claims for Polish end-users. The brand does not address the utility-scale ground-mount segment in any meaningful way. Trina Solar serves three distinct market tiers with dedicated product families: a residential line in the Vertex N range (around 495 W), a commercial and industrial offering (around 670 W), and the flagship Vertex N i-TOPCon Ultra series for utility-scale projects, with a leading module rated at 760 W and a confirmed cell efficiency of 24.5%. TOPCon cell technology underpins Trina Solar's current generation across all segments. For an international buyer or a project developer requiring bankable, scalable supply, Trina Solar is the clear default - backed by global logistics, broad certification coverage, and a documented track record across all market tiers. Selfa is the more compelling choice specifically for Polish residential buyers who value domestic sourcing, local-language support, and straightforward in-country warranty service. The two brands are not meaningfully interchangeable in commercial or project-finance contexts, given the substantial gap in scale, technology breadth, and global institutional recognition. Written by claude-sonnet from the figures above. ## Other comparisons - [Selfa vs A.B. Energy](https://comparepv.com/selfa-vs-a-b-energy) - [AE Solar vs Trina Solar](https://comparepv.com/ae-solar-vs-trina-solar) - [Selfa vs AEET](https://comparepv.com/selfa-vs-aeet) - [AIKO vs Trina Solar](https://comparepv.com/aiko-vs-trina-solar) - [Selfa vs AKCOME](https://comparepv.com/selfa-vs-akcome) - [ARTsolar vs Trina Solar](https://comparepv.com/artsolar-vs-trina-solar) --- Source: https://comparepv.com/selfa-vs-trina-solar Not in this file, on the page: the distributions above drawn as charts.