--- title: "Tongwei vs A.B. Energy - Brand Comparison | ComparePV" description: "Compare Tongwei vs A.B. Energy solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/tongwei-vs-a-b-energy" --- # Tongwei vs A.B. Energy Tongwei has the broader catalog (122 vs 0 models). Tongwei leans bifacial (69% of lineup). ## The two companies | Attribute | Tongwei | A.B. Energy | | --- | --- | --- | | Country | China | Germany | | Headquarters | Chengdu | Wiesbaden | | Founded | 2013 | 1996 | | Employees | | 1,400 | | Annual capacity | | | | Tier 1 | yes | | | Listed | SSE: 600438 | Xetra, Frankfurt Stock Exchange: AB9 | | Website | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) | [https://abo-energy.com](https://abo-energy.com) | ABO Energy is a renewable energy company that develops and constructs renewable energy projects, focusing on wind, solar, and storage facilities. They offer turnkey solutions and have connected several gigawatts of nominal output to the grid. The company is active internationally and is committed to driving the energy... ## Catalog & Power | Measure | Tongwei | A.B. Energy | Margin | | --- | --- | --- | --- | | Panel Models | 122 | 0 | +122 | | Max Power | 750 W | 0 W | +750 W | | Avg Power | 584 W | 0 W | +584 W | ## Efficiency | Measure | Tongwei | A.B. Energy | Margin | | --- | --- | --- | --- | | Max Efficiency | 24.20% | - | | | Avg Efficiency | 22.59% | - | | ## Reliability & Warranty | Measure | Tongwei | A.B. Energy | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.284%/°C | - | | | Bifacial Share | 84 (69%) | 0 (0%) | +69 pp | | Avg Warranty | 29.5 yrs | - | | ## Efficiency distribution Tongwei skews to higher efficiency: 41% of lineup is 23%+ | Efficiency band | Tongwei | A.B. Energy | | --- | --- | --- | | \<20% | 2 (1.6%) | 0 | | 20-21% | 6 (4.9%) | 0 | | 21-22% | 14 (11.5%) | 0 | | 22-23% | 50 (41.0%) | 0 | | 23%+ | 50 (41.0%) | 0 | ## Power distribution Tongwei offers more 600W+ panels (53% of lineup) | Power band | Tongwei | A.B. Energy | | --- | --- | --- | | 400-499W | 41 (33.6%) | 0 | | 500-599W | 16 (13.1%) | 0 | | 600-699W | 33 (27.0%) | 0 | | 700W+ | 32 (26.2%) | 0 | ## Cell technology Dominant cell tech: **TOPCon** (47%) | Technology | Tongwei | A.B. Energy | | --- | --- | --- | | TOPCon | 57 (46.7%) | 0 | | N-type | 44 (36.1%) | 0 | | PERC | 10 (8.2%) | 0 | | Unknown | 6 (4.9%) | 0 | | HJT | 5 (4.1%) | 0 | ## 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 Tongwei is a Chinese manufacturer headquartered in Chengdu, Sichuan, founded in 1984 as a fish-feed and aquaculture business before pivoting aggressively into solar over the past decade. It holds BloombergNEF Tier 1 status and by 2025 had built one of the largest cell and module production bases in the world, with reported module capacity in the range of 60-90 GW per year and cumulative shipments that crossed the 100 GW milestone. A.B. Energy, by contrast, is a small Italian company - listed on ENF Solar as a seller and distributor rather than a panel manufacturer - with roots in electrical and electronic equipment distribution and a stated mission around energy efficiency consultancy and resale. No credible industry source places A.B. Energy on any Tier 1 or bankability list. Tongwei has an incomparably stronger institutional footprint. On the product side, Tongwei's commercial catalog centers on its TNC series of n-type TOPCon modules, available in large-format G12 wafers, with bifaciality factors and efficiency ratings verified by third-party labs and reported in publications such as pv-magazine. The company also runs pilot HJT lines under its THC branding and is actively developing xBC and perovskite-tandem roadmaps, positioning it for utility-scale ground mounts and increasingly for premium commercial rooftops where high-watt modules reduce balance-of-system costs. A.B. Energy's product offering, based on available information, consists of sourced or resold panels from third-party manufacturers rather than any proprietary module family, making a technology-level comparison impossible without knowing which brands it distributes at any given time. For any buyer operating at scale in 2025 - whether a utility developer, a commercial EPC, or an installer seeking bankable equipment - Tongwei is the clear default choice, backed by documented production capacity, third-party efficiency data, and Tier 1 status. A.B. Energy may serve a role as a local Italian distributor for smaller projects, but it cannot be evaluated or compared as a manufacturer in the same frame. \---LINKS--- \- https://www.pv-magazine.com/2025/07/01/tongwei-achieves-91-7-bifaciality-factor-for-722-w-topcon-solar-module/ \| Tongwei achieves 91.7% bifaciality factor for 722 W TOPCon module \| article \- https://www.solarquotes.com.au/panels/tw-solar-review.html \| TW Solar panels review - SolarQuotes Australia \| review \- https://www.solarchoice.net.au/products/tw-solar-panels-review/ \| TW Solar panels independent review - Solar Choice \| review \- https://www.enfsolar.com/a-b-energy \| A.B. Energy SRLS company listing - ENF Solar directory \| article Sources: \- \[Tongwei achieves 91.7% bifaciality factor for 722 W TOPCon module - PV Magazine\](https://www.pv-magazine.com/2025/07/01/tongwei-achieves-91-7-bifaciality-factor-for-722-w-topcon-solar-module/) \- \[TW Solar Review - SolarQuotes\](https://www.solarquotes.com.au/panels/tw-solar-review.html) \- \[TW Solar Panels Independent Review - Solar Choice\](https://www.solarchoice.net.au/products/tw-solar-panels-review/) \- \[A.B. Energy SRLS - ENF Solar Directory\](https://www.enfsolar.com/a-b-energy) \- \[Tongwei solar shipments reach 100GW milestone - PVknowhow\](https://www.pvknowhow.com/news/tongwei-solar-shipments-reach-stunning-100gw-milestone/) Written by claude-sonnet from the figures above. ## Other comparisons - [Tongwei vs AE Solar](https://comparepv.com/tongwei-vs-ae-solar) - [AEET vs A.B. Energy](https://comparepv.com/aeet-vs-a-b-energy) - [Tongwei vs AIKO](https://comparepv.com/tongwei-vs-aiko) - [AKCOME vs A.B. Energy](https://comparepv.com/akcome-vs-a-b-energy) - [Tongwei vs ARTsolar](https://comparepv.com/tongwei-vs-artsolar) - [ASM vs A.B. Energy](https://comparepv.com/asm-vs-a-b-energy) --- Source: https://comparepv.com/tongwei-vs-a-b-energy Not in this file, on the page: the distributions above drawn as charts.