--- title: "Sunova vs Tongwei - Brand Comparison | ComparePV" description: "Compare Sunova vs Tongwei solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/sunova-vs-tongwei" image: "https://comparepv.com/og/compare/manufacturers/sunova/tongwei.png" --- # Sunova vs Tongwei Sunova has the broader catalog (183 vs 122 models). Tongwei leads on peak efficiency at 24.20%. Sunova leans bifacial (92% of lineup). ## The two companies | Attribute | Sunova | Tongwei | | --- | --- | --- | | Country | China | China | | Headquarters | Hefei | Chengdu | | Founded | 2008 | 2013 | | Employees | | | | Annual capacity | | | | Tier 1 | no | yes | | Listed | | SSE: 600438 | | Website | [https://www.sunovasolar.com](https://www.sunovasolar.com) | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) | ## Catalog & Power | Measure | Sunova | Tongwei | Margin | | --- | --- | --- | --- | | Panel Models | 183 | 122 | +61 | | Max Power | 720 W | 750 W | +30 W | | Avg Power | 523 W | 584 W | +61 W | ## Efficiency | Measure | Sunova | Tongwei | Margin | | --- | --- | --- | --- | | Max Efficiency | 23.20% | 24.20% | +1.00 pp | | Avg Efficiency | 21.60% | 22.59% | +0.99 pp | ## Reliability & Warranty | Measure | Sunova | Tongwei | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.317%/°C | -0.284%/°C | +0.033 | | Bifacial Share | 168 (92%) | 84 (69%) | +23 pp | | Avg Warranty | 28.4 yrs | 29.5 yrs | +1.1 yr | ## Efficiency distribution Tongwei skews to higher efficiency: 41% of lineup is 23%+ | Efficiency band | Sunova | Tongwei | | --- | --- | --- | | 20-21% | 46 (25.1%) | 6 (4.9%) | | 21-22% | 70 (38.3%) | 14 (11.5%) | | 22-23% | 57 (31.1%) | 50 (41.0%) | | 23%+ | 10 (5.5%) | 50 (41.0%) | | \<20% | 0 | 2 (1.6%) | ## Power distribution Tongwei offers more 600W+ panels (53% of lineup) | Power band | Sunova | Tongwei | | --- | --- | --- | | 400-499W | 84 (45.9%) | 41 (33.6%) | | 500-599W | 58 (31.7%) | 16 (13.1%) | | 600-699W | 31 (16.9%) | 33 (27.0%) | | 700W+ | 10 (5.5%) | 32 (26.2%) | ## Cell technology Dominant cell tech: PERC (49%) Dominant cell tech: TOPCon (47%) | Technology | Sunova | Tongwei | | --- | --- | --- | | PERC | 89 (48.6%) | 10 (8.2%) | | N-type | 72 (39.3%) | 44 (36.1%) | | TOPCon | 12 (6.6%) | 57 (46.7%) | | Unknown | 10 (5.5%) | 6 (4.9%) | | HJT | 0 | 5 (4.1%) | ## Top panels, Sunova | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [TS-BGT66(720)-G12](https://comparepv.com/panel/sunova-ts-bgt66-720-g12) | 720 | 23.2 | -0.300 | Monocrystalline | | 2 | [TS-BWT66(720)-G12](https://comparepv.com/panel/sunova-ts-bwt66-720-g12) | 720 | 23.2 | -0.290 | Monocrystalline | | 3 | [TS-BGT66(715)-G12](https://comparepv.com/panel/sunova-ts-bgt66-715-g12) | 715 | 23.0 | -0.300 | Monocrystalline | | 4 | [TS-BWT66(715)-G12](https://comparepv.com/panel/sunova-ts-bwt66-715-g12) | 715 | 23.0 | -0.290 | Monocrystalline | | 5 | [TS-BGT66(710)-G12](https://comparepv.com/panel/sunova-ts-bgt66-710-g12) | 710 | 22.9 | -0.300 | Monocrystalline | | 6 | [TS-BWT66(710)-G12](https://comparepv.com/panel/sunova-ts-bwt66-710-g12) | 710 | 22.9 | -0.290 | Monocrystalline | | 7 | [TS-BGT66(705)-G12](https://comparepv.com/panel/sunova-ts-bgt66-705-g12) | 705 | 22.7 | -0.300 | Monocrystalline | | 8 | [TS-BWT66(705)-G12](https://comparepv.com/panel/sunova-ts-bwt66-705-g12) | 705 | 22.7 | -0.290 | Monocrystalline | | 9 | [TS-BGT66(700)-G12](https://comparepv.com/panel/sunova-ts-bgt66-700-g12) | 700 | 22.5 | -0.300 | Monocrystalline | | 10 | [TS-BWT66(700)-G12](https://comparepv.com/panel/sunova-ts-bwt66-700-g12) | 700 | 22.5 | -0.290 | Monocrystalline | ## Top panels, Tongwei | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [TWMNF-66HD750](https://comparepv.com/panel/tongwei-solar-twmnf-66hd750) | 750 | 24.1 | -0.280 | Monocrystalline | | 2 | [TWMNF-66HD745](https://comparepv.com/panel/tongwei-solar-twmnf-66hd745) | 745 | 24.0 | -0.280 | Monocrystalline | | 3 | [TWMNF-66HD740](https://comparepv.com/panel/tongwei-solar-twmnf-66hd740) | 740 | 23.8 | -0.280 | Monocrystalline | | 4 | [TWMHF-66HD740X](https://comparepv.com/panel/tw-solar-twmhf-66hd740x) | 740 | 23.8 | -0.240 | Monocrystalline | | 5 | [THC G12-66 Bifacial](https://comparepv.com/panel/tongwei-thc-g12-66-bifacial) | 740 | 23.8 | -0.280 | Monocrystalline | | 6 | [TWMNF-66HD735](https://comparepv.com/panel/tongwei-solar-twmnf-66hd735) | 735 | 23.7 | -0.280 | Monocrystalline | | 7 | [TWMHF-66HD735X](https://comparepv.com/panel/tw-solar-twmhf-66hd735x) | 735 | 23.7 | -0.240 | Monocrystalline | | 8 | [TWMHF-66HD730X](https://comparepv.com/panel/tw-solar-twmhf-66hd730x) | 730 | 23.5 | -0.240 | Monocrystalline | | 9 | [TWMNF-66HD730](https://comparepv.com/panel/tongwei-solar-twmnf-66hd730) | 730 | 23.5 | -0.280 | Monocrystalline | | 10 | [TWMNF-66HD725](https://comparepv.com/panel/tongwei-solar-twmnf-66hd725) | 725 | 23.3 | -0.280 | Monocrystalline | ## Summary Sunova is a Chinese solar manufacturer that has held BloombergNEF Tier 1 status continuously since 2023, qualifying through multiple independently financed projects across global markets. Operating a TOPCon cell factory in Yibin, Sichuan, the company runs at an annual module production scale of roughly 6.5 GW and a cell capacity approaching 9 GW - making it a mid-sized but credible and bankable supplier. Tongwei presents an entirely different order of magnitude: founded in 1982 in Chengdu as an agricultural conglomerate before pivoting into solar energy, it has become one of the most vertically integrated photovoltaic producers in the world, controlling polysilicon, wafers, cells, and modules under one roof. Its reported annual module capacity exceeds 90 GW and cell capacity surpasses 150 GW. Both carry BNEF Tier 1 recognition, but Tongwei commands a substantially larger institutional footprint and supply-chain depth. Both manufacturers have converged on N-type TOPCon as their primary cell technology. Sunova's portfolio centers on bifacial dual-glass modules spanning roughly 425 Wp to over 600 Wp, with a stated bifacial gain of up to 30%, targeting industrial rooftop and ground-mounted utility projects; all TOPCon modules carry a 30-year performance warranty and a 15-year product warranty. Tongwei's TW Solar brand covers a broader power range - from compact residential bifacial modules around 450 Wp through commercial and industrial formats to large-format utility products such as the G12R series and a recently announced 770 W module with a confirmed 24.8% efficiency. Tongwei has also reported a 91.7% bifaciality factor on a 722 W TOPCon module, underscoring its competitive edge in high-yield ground-mount applications. For most international buyers, Tongwei is the stronger default choice given its unmatched manufacturing scale, full vertical integration from polysilicon to finished module, and a portfolio that can serve procurement at virtually any project size. Sunova is a solid and bankable alternative for buyers who prefer a focused mid-tier supplier with a proven Tier 1 track record and a tighter product line. In terms of core cell technology and warranty structure the two brands are broadly comparable, so project pricing and regional supply availability will typically be the deciding factors. Written by claude-sonnet from the figures above. ## Other comparisons - [Sunova vs A.B. Energy](https://comparepv.com/sunova-vs-a-b-energy) - [AE Solar vs Tongwei](https://comparepv.com/ae-solar-vs-tongwei) - [Sunova vs AEET](https://comparepv.com/sunova-vs-aeet) - [AIKO vs Tongwei](https://comparepv.com/aiko-vs-tongwei) - [Sunova vs AKCOME](https://comparepv.com/sunova-vs-akcome) - [ARTsolar vs Tongwei](https://comparepv.com/artsolar-vs-tongwei) --- Source: https://comparepv.com/sunova-vs-tongwei Not in this file, on the page: the distributions above drawn as charts.