--- title: "CSUN vs Q-Cells - Brand Comparison | ComparePV" description: "Compare CSUN vs Q-Cells solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/csun-vs-q-cells" --- # CSUN vs Q-Cells Q-Cells has the broader catalog (89 vs 35 models). Q-Cells leads on peak efficiency at 23.20%. Q-Cells leans bifacial (39% of lineup). ## The two companies | Attribute | CSUN | Q-Cells | | --- | --- | --- | | Country | China | South Korea | | Headquarters | Nanjing | Seoul | | Founded | 2004 | 1999 | | Employees | 1000-5000 | 2000+ | | Annual capacity | 2-3 GW/year | 11.2 GW/year | | Tier 1 | yes | yes | | Listed | | NASDAQ: HQCL | | Website | [https://www.csun-solar.com](https://www.csun-solar.com) | [https://www.qcells.com](https://www.qcells.com) | China Sunergy (CSUN) is a Chinese manufacturer of solar cells and photovoltaic modules headquartered in Nanjing, Jiangsu. The company produces high-efficiency mono- and multicrystalline solar cells and modules from production facilities in China and, historically, Turkey. It was formerly listed on NASDAQ and was... Qcells is a renowned global provider of complete energy solutions, specializing in solar cells and modules, energy storage solutions, downstream project business, and energy retail. The company has a strong heritage dating back to its foundation in Germany and has become a leader in technology innovations. As an... ## Catalog & Power | Measure | CSUN | Q-Cells | Margin | | --- | --- | --- | --- | | Panel Models | 35 | 89 | +54 | | Max Power | 670 W | 675 W | +5 W | | Avg Power | 478 W | 468 W | +10 W | ## Efficiency | Measure | CSUN | Q-Cells | Margin | | --- | --- | --- | --- | | Max Efficiency | 21.60% | 23.20% | +1.60 pp | | Avg Efficiency | 20.15% | 21.21% | +1.06 pp | ## Reliability & Warranty | Measure | CSUN | Q-Cells | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.366%/°C | -0.325%/°C | +0.041 | | Bifacial Share | 0 (0%) | 35 (39%) | +39 pp | | Avg Warranty | 25.0 yrs | 27.0 yrs | +2.0 yr | ## Efficiency distribution Q-Cells skews to higher efficiency: 2% of lineup is 23%+ | Efficiency band | CSUN | Q-Cells | | --- | --- | --- | | \<20% | 11 (31.4%) | 7 (7.9%) | | 20-21% | 13 (37.1%) | 29 (32.6%) | | 21-22% | 11 (31.4%) | 30 (33.7%) | | 22-23% | 0 | 21 (23.6%) | | 23%+ | 0 | 2 (2.2%) | ## Power distribution CSUN offers more 600W+ panels (20% of lineup) | Power band | CSUN | Q-Cells | | --- | --- | --- | | \<400W | 15 (42.9%) | 20 (22.5%) | | 400-499W | 5 (14.3%) | 41 (46.1%) | | 500-599W | 8 (22.9%) | 11 (12.4%) | | 600-699W | 7 (20.0%) | 17 (19.1%) | ## Cell technology Dominant cell tech: **PERC** (94%) Dominant cell tech: **PERC** (43%) | Technology | CSUN | Q-Cells | | --- | --- | --- | | PERC | 33 (94.3%) | 38 (42.7%) | | TOPCon | 2 (5.7%) | 8 (9.0%) | | N-type | 0 | 23 (25.8%) | | Unknown | 0 | 20 (22.5%) | ## Top panels, CSUN | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [CSUN670-132M](https://comparepv.com/panel/csun-csun670-132m) | 670 | 21.6 | -0.350 | Monocrystalline | | 2 | [CSUN665-132M](https://comparepv.com/panel/csun-csun665-132m) | 665 | 21.4 | -0.350 | Monocrystalline | | 3 | [CSUN660-132M](https://comparepv.com/panel/csun-csun660-132m) | 660 | 21.2 | -0.350 | Monocrystalline | | 4 | [CSUN655-132M](https://comparepv.com/panel/csun-csun655-132m) | 655 | 21.1 | -0.350 | Monocrystalline | | 5 | [CSUN650-132M](https://comparepv.com/panel/csun-csun650-132m) | 650 | 20.9 | -0.350 | Monocrystalline | | 6 | [CSUN645-132M](https://comparepv.com/panel/csun-csun645-132m) | 645 | 20.8 | -0.350 | Monocrystalline | | 7 | [CSUN600-156M](https://comparepv.com/panel/csun-csun600-156m) | 600 | 21.4 | -0.360 | Monocrystalline | | 8 | [CSUN595-156M](https://comparepv.com/panel/csun-csun595-156m) | 595 | 21.2 | -0.360 | Monocrystalline | | 9 | [CSUN590-156M](https://comparepv.com/panel/csun-csun590-156m) | 590 | 21.1 | -0.360 | Monocrystalline | | 10 | [CSUN585-156M](https://comparepv.com/panel/csun-csun585-156m) | 585 | 20.9 | -0.360 | Monocrystalline | ## Top panels, Q-Cells | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-675) | 675 | 21.7 | -0.340 | Monocrystalline | | 2 | [Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-670) | 670 | 21.6 | -0.340 | Monocrystalline | | 3 | [Q.PEAK DUO ML-G12S.3 / BFG 665](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-665) | 665 | 21.4 | -0.340 | Monocrystalline | | 4 | [Q.PEAK DUO ML-G12S.3 / BFG 660](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-660) | 660 | 21.2 | -0.340 | Monocrystalline | | 5 | [Q.PEAK DUO ML-G12S.3 / BFG 655](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-655) | 655 | 21.1 | -0.340 | Monocrystalline | | 6 | [Q.PEAK DUO ML-G12S.3 / BFG 650](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-650) | 650 | 20.9 | -0.340 | Monocrystalline | | 7 | [Q.TRON XL-G2.3 / BFG 645](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-645) | 645 | 23.1 | -0.290 | Monocrystalline | | 8 | [Q.TRON XL-G2.3 / BFG 640](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-640) | 640 | 22.9 | -0.290 | Monocrystalline | | 9 | [Q.TRON XL-G2.3 / BFG 635](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-635) | 635 | 22.7 | -0.300 | Monocrystalline | | 10 | [Q.TRON XL-G2.3 / BFG 630](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-630) | 630 | 22.6 | -0.300 | Monocrystalline | ## Other comparisons - [CSUN vs A.B. Energy](https://comparepv.com/csun-vs-a-b-energy) - [AE Solar vs Q-Cells](https://comparepv.com/ae-solar-vs-q-cells) - [CSUN vs AEET](https://comparepv.com/csun-vs-aeet) - [AIKO vs Q-Cells](https://comparepv.com/aiko-vs-q-cells) - [CSUN vs AKCOME](https://comparepv.com/csun-vs-akcome) - [ARTsolar vs Q-Cells](https://comparepv.com/artsolar-vs-q-cells) --- Source: https://comparepv.com/csun-vs-q-cells Not in this file, on the page: the distributions above drawn as charts.