--- title: "ET Solar vs AIKO - Brand Comparison | ComparePV" description: "Compare ET Solar vs AIKO solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/et-solar-vs-aiko" --- # ET Solar vs AIKO AIKO has the broader catalog (144 vs 10 models). AIKO leads on peak efficiency at 25.20%. ET Solar leans bifacial (50% of lineup). ## The two companies | Attribute | ET Solar | AIKO | | --- | --- | --- | | Country | China | China | | Headquarters | Nanjing | Shanghai | | Founded | 2005 | 2009 | | Employees | | | | Annual capacity | | | | Tier 1 | no | yes | | Listed | | SZSE: 600732 | | Website | [https://www.etsolar.com](https://www.etsolar.com) | [https://www.aikosolar.com](https://www.aikosolar.com) | ## Catalog & Power | Measure | ET Solar | AIKO | Margin | | --- | --- | --- | --- | | Panel Models | 10 | 144 | +134 | | Max Power | 555 W | 805 W | +250 W | | Avg Power | 542 W | 581 W | +39 W | ## Efficiency | Measure | ET Solar | AIKO | Margin | | --- | --- | --- | --- | | Max Efficiency | 21.40% | 25.20% | +3.80 pp | | Avg Efficiency | 20.99% | 23.65% | +2.66 pp | ## Reliability & Warranty | Measure | ET Solar | AIKO | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.340%/°C | -0.271%/°C | +0.069 | | Bifacial Share | 5 (50%) | 35 (24%) | +26 pp | | Avg Warranty | 27.5 yrs | 29.5 yrs | +2.0 yr | ## Efficiency distribution AIKO skews to higher efficiency: 85% of lineup is 23%+ | Efficiency band | ET Solar | AIKO | | --- | --- | --- | | 20-21% | 5 (50.0%) | 3 (2.1%) | | 21-22% | 5 (50.0%) | 3 (2.1%) | | \<20% | 0 | 3 (2.1%) | | 22-23% | 0 | 12 (8.3%) | | 23%+ | 0 | 123 (85.4%) | ## Power distribution AIKO offers more 600W+ panels (60% of lineup) | Power band | ET Solar | AIKO | | --- | --- | --- | | 500-599W | 10 (100.0%) | 5 (3.5%) | | \<400W | 0 | 2 (1.4%) | | 400-499W | 0 | 50 (34.7%) | | 600-699W | 0 | 78 (54.2%) | | 700W+ | 0 | 9 (6.2%) | ## Cell technology Dominant cell tech: **PERC** (100%) Dominant cell tech: **Back Contact** (83%) | Technology | ET Solar | AIKO | | --- | --- | --- | | PERC | 10 (100.0%) | 7 (4.9%) | | Back Contact | 0 | 119 (82.6%) | | N-type | 0 | 17 (11.8%) | | Flexible | 0 | 1 (0.7%) | ## Top panels, ET Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [ET-M772BH555WW/WB](https://comparepv.com/panel/et-solar-et-m772bh555ww-wb) | 555 | 21.4 | -0.340 | Monocrystalline | | 2 | [ET-M772BH550TW/TB](https://comparepv.com/panel/et-solar-et-m772bh550tw-tb) | 550 | 21.3 | -0.340 | Monocrystalline | | 3 | [ET-M772BH550WW/WB](https://comparepv.com/panel/et-solar-et-m772bh550ww-wb) | 550 | 21.3 | -0.340 | Monocrystalline | | 4 | [ET-M772BH545TW/TB](https://comparepv.com/panel/et-solar-et-m772bh545tw-tb) | 545 | 21.1 | -0.340 | Monocrystalline | | 5 | [ET-M772BH545WW/WB](https://comparepv.com/panel/et-solar-et-m772bh545ww-wb) | 545 | 21.1 | -0.340 | Monocrystalline | | 6 | [ET-M772BH540TW/TB](https://comparepv.com/panel/et-solar-et-m772bh540tw-tb) | 540 | 20.9 | -0.340 | Monocrystalline | | 7 | [ET-M772BH540WW/WB](https://comparepv.com/panel/et-solar-et-m772bh540ww-wb) | 540 | 20.9 | -0.340 | Monocrystalline | | 8 | [ET-M772BH535TW/TB](https://comparepv.com/panel/et-solar-et-m772bh535tw-tb) | 535 | 20.7 | -0.340 | Monocrystalline | | 9 | [ET-M772BH535WW/WB](https://comparepv.com/panel/et-solar-et-m772bh535ww-wb) | 535 | 20.7 | -0.340 | Monocrystalline | | 10 | [ET-M772BH530TW/TB](https://comparepv.com/panel/et-solar-et-m772bh530tw-tb) | 530 | 20.5 | -0.340 | Monocrystalline | ## Top panels, AIKO | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 | 25.1 | -0.260 | Monocrystalline | | 2 | [AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 | 24.9 | -0.260 | Monocrystalline | | 3 | [AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 | 24.8 | -0.260 | Monocrystalline | | 4 | [AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 | 24.6 | -0.260 | Monocrystalline | | 5 | [AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 | 24.4 | -0.260 | Monocrystalline | | 6 | [AIKO-A780-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a780-grh78dw) | 780 | 24.3 | -0.260 | Monocrystalline | | 7 | [AIKO-A775-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a775-grh78dw) | 775 | 24.1 | -0.260 | Monocrystalline | | 8 | [AIKO-A770-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a770-grh78dw) | 770 | 24.0 | -0.260 | Monocrystalline | | 9 | [AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 | 25.0 | -0.260 | Monocrystalline | | 10 | [AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 | 24.9 | -0.260 | Monocrystalline | ## Summary ET Solar is a Chinese manufacturer founded in 2005 and headquartered in Nanjing, China, making it one of the earlier participants in the modern photovoltaic industry. The company has earned a place on the BloombergNEF Tier 1 Solar Module Maker List - confirmed as of Q3 2024 - and its main manufacturing base in Taizhou has operated at over 1 GW of annual module output, with a related entity, EliTe Solar, reporting substantially expanded wafer, cell, and module capacity since then. AIKO is a newer entrant headquartered in China that has grown rapidly around its proprietary All Back Contact (ABC) cell platform; it achieved BloombergNEF Tier 1 status in Q3 2024 and reported approximately 20 GW of annual production capacity as of early 2025, according to Vico Export's Tier 1 tracking data. By that production-scale metric, AIKO now carries the larger industrial footprint of the two. ET Solar's catalog has historically spanned PERC and, more recently, N-type TOPCon modules suited to commercial rooftops and utility-scale ground mounts, positioning the brand as a dependable mid-market option for EPC contractors and project financiers. AIKO, by contrast, has built its identity almost entirely around ABC technology, an N-type back-contact architecture that eliminates front busbars to maximize active cell area. The company reported a 24.8% mass-produced commercial module efficiency in 2025 and has topped the TaiyangNews Top Solar Modules ranking for more than 34 consecutive months. Independent Australian installer surveys gave AIKO the 2025 SolarQuotes Installers' Choice Award, though at least one real-world field test found the efficiency edge over rival premium TOPCon panels to be modest in typical rooftop conditions. For buyers prioritizing proven supply-chain depth, broad financing acceptance, and competitive pricing on commercial or utility projects, ET Solar is a reliable and bankable choice. Buyers willing to pay a premium - roughly AU$20 more per panel in markets where AIKO is actively distributed - and targeting high-density residential rooftops where every watt-per-square-metre counts will find AIKO's ABC modules genuinely differentiated. The two brands are not directly interchangeable: ET Solar suits volume-driven, cost-sensitive procurement while AIKO targets performance-first applications. \---LINKS--- \- https://www.solarquotes.com.au/panels/aiko-solar-review.html \| AIKO Solar panels review - SolarQuotes \| review \- https://mcelectrical.com.au/debunking-the-aiko-solar-panel-hype-a-real-world-performance-test/ \| Debunking the AIKO Solar Panel Hype - real-world performance test \| review \- https://aikosolar.com/en/aiko-sets-new-benchmark/ \| AIKO sets new benchmark with 24.8% commercial module efficiency \| article \- https://www.vicoexport.com/en/61277/tier-1-list-of-solar-panel-manufacturers-q2-2025/ \| Tier 1 list of solar panel manufacturers Q2 2025 \| article \- https://www.energysage.com/supplier/20134/et-solar-inc/ \| ET Solar Inc. profile and reviews - EnergySage \| review Sources: \- \[AIKO Solar panel review - SolarQuotes\](https://www.solarquotes.com.au/panels/aiko-solar-review.html) \- \[Debunking the AIKO Solar Panel Hype - MC Electrical\](https://mcelectrical.com.au/debunking-the-aiko-solar-panel-hype-a-real-world-performance-test/) \- \[AIKO Sets New Benchmark with 24.8% Efficiency\](https://aikosolar.com/en/aiko-sets-new-benchmark/) \- \[Tier 1 List of Solar Panel Manufacturers Q2 2025 - Vico Export\](https://www.vicoexport.com/en/61277/tier-1-list-of-solar-panel-manufacturers-q2-2025/) \- \[ET Solar Inc. Profile and Reviews - EnergySage\](https://www.energysage.com/supplier/20134/et-solar-inc/) Written by claude-sonnet from the figures above. ## Other comparisons - [ET Solar vs A.B. Energy](https://comparepv.com/et-solar-vs-a-b-energy) - [AE Solar vs AIKO](https://comparepv.com/ae-solar-vs-aiko) - [ET Solar vs AEET](https://comparepv.com/et-solar-vs-aeet) - [AKCOME vs AIKO](https://comparepv.com/akcome-vs-aiko) - [ET Solar vs ARTsolar](https://comparepv.com/et-solar-vs-artsolar) - [ASM vs AIKO](https://comparepv.com/asm-vs-aiko) --- Source: https://comparepv.com/et-solar-vs-aiko Not in this file, on the page: the distributions above drawn as charts.