--- title: "A.B. Energy vs Resun Solar - Brand Comparison | ComparePV" description: "Compare A.B. Energy vs Resun Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/a-b-energy-vs-resun-solar" --- # A.B. Energy vs Resun Solar Resun Solar has the broader catalog (236 vs 0 models). Resun Solar leans bifacial (31% of lineup). ## The two companies | Attribute | A.B. Energy | Resun Solar | | --- | --- | --- | | Country | Germany | China | | Headquarters | Wiesbaden | Suzhou | | Founded | 1996 | 2007 | | Employees | 1,400 | | | Annual capacity | | 1 GW/year | | Tier 1 | | | | Listed | Xetra, Frankfurt Stock Exchange: AB9 | | | Website | [https://abo-energy.com](https://abo-energy.com) | [http://www.resunsolar.com](http://www.resunsolar.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... Resun Solar Energy Co., Ltd. specializes in developing and manufacturing high-quality, cost-effective photovoltaic solar modules. With factories accredited by ISO9001 & 14001, their panels are certified by TUV, IEC61215, IEC61730, and other international quality systems. The company's sales network spans over 80... ## Catalog & Power | Measure | A.B. Energy | Resun Solar | Margin | | --- | --- | --- | --- | | Panel Models | 0 | 236 | +236 | | Max Power | 0 W | 735 W | +735 W | | Avg Power | 0 W | 510 W | +510 W | ## Efficiency | Measure | A.B. Energy | Resun Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | - | 23.66% | | | Avg Efficiency | - | 21.52% | | ## Reliability & Warranty | Measure | A.B. Energy | Resun Solar | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | - | -0.318%/°C | | | Bifacial Share | 0 (0%) | 73 (31%) | +31 pp | | Avg Warranty | - | 30.0 yrs | | ## Efficiency distribution Resun Solar skews to higher efficiency: 7% of lineup is 23%+ | Efficiency band | A.B. Energy | Resun Solar | | --- | --- | --- | | \<20% | 0 | 28 (11.9%) | | 20-21% | 0 | 30 (12.7%) | | 21-22% | 0 | 60 (25.4%) | | 22-23% | 0 | 101 (42.8%) | | 23%+ | 0 | 17 (7.2%) | ## Power distribution Resun Solar offers more 600W+ panels (29% of lineup) | Power band | A.B. Energy | Resun Solar | | --- | --- | --- | | \<400W | 0 | 33 (14.0%) | | 400-499W | 0 | 80 (33.9%) | | 500-599W | 0 | 55 (23.3%) | | 600-699W | 0 | 54 (22.9%) | | 700W+ | 0 | 14 (5.9%) | ## Cell technology Dominant cell tech: **TOPCon** (66%) | Technology | A.B. Energy | Resun Solar | | --- | --- | --- | | TOPCon | 0 | 155 (65.7%) | | Unknown | 0 | 81 (34.3%) | ## Top panels, Resun Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [RS9H-M TOPCON-735](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-735) | 735 | 23.7 | -0.300 | Monocrystalline | | 2 | [RS9H-M TOPCON-730](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-730) | 730 | 23.5 | -0.300 | Monocrystalline | | 3 | [RS9H-M TOPCON-725](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-725) | 725 | 23.3 | -0.300 | Monocrystalline | | 4 | [RS9H-M TOPCON-720](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-720) | 720 | 23.2 | -0.300 | Monocrystalline | | 5 | [RS9H-M-720](https://comparepv.com/panel/resun-solar-rs9h-m-720) | 720 | 23.2 | -0.300 | Monocrystalline | | 6 | [RS9H-M-DG-720](https://comparepv.com/panel/resun-solar-rs9h-m-dg-720) | 720 | 23.2 | -0.300 | Monocrystalline | | 7 | [RS9H-M-715](https://comparepv.com/panel/resun-solar-rs9h-m-715) | 715 | 23.0 | -0.300 | Monocrystalline | | 8 | [RS9H-M-DG-715](https://comparepv.com/panel/resun-solar-rs9h-m-dg-715) | 715 | 23.0 | -0.300 | Monocrystalline | | 9 | [RS9H-M-710](https://comparepv.com/panel/resun-solar-rs9h-m-710) | 710 | 22.9 | -0.300 | Monocrystalline | | 10 | [RS9H-M-DG-710](https://comparepv.com/panel/resun-solar-rs9h-m-dg-710) | 710 | 22.9 | -0.300 | Monocrystalline | ## Summary Resun Solar is a Chinese module manufacturer founded in 2005 and headquartered in Changzhou, Jiangsu Province. The company operates under two brand labels - Resun Solar and Restar Solar - and has reported an annual production capacity of approximately 5 GW across multiple dust-free assembly facilities. Its panels carry TUV, IEC, CEC, and CE certifications and are insured by the American CHUBB Insurance Group, which provides additional backing for warranty obligations. Resun does not appear on the BloombergNEF Tier 1 bankability list that major project lenders use as a benchmark, positioning it as a credible mid-tier supplier rather than a top-institutional-grade name. A.B. Energy SRLS, by contrast, is an Italian company that operates not as a panel manufacturer but as a solar equipment distributor, reselling modules from established brands such as REC Solar, JA Solar, Trina Solar, and LONGi Solar alongside inverter lines from SMA, Fronius, SolarEdge, and Huawei. On manufacturing scale and direct production credentials, Resun Solar holds the stronger industrial footprint. Resun's catalog spans a broad power range - from small portable panels up to large-format 720 W modules - addressing residential rooftops, commercial installations, and utility-scale ground-mount projects. The company has demonstrated TOPCon cell technology in its RS8I-M series, which aligns with the dominant industry shift in 2024-2025, and offers a 30-year performance warranty that exceeds the conventional 25-year benchmark. A.B. Energy, as a distributor, does not produce its own modules, so its portfolio is effectively whatever brands it partners with at a given time - a flexible but manufacturer-agnostic proposition. For a buyer seeking to evaluate a single production entity with a traceable factory origin, published datasheets, and independent lab certifications, Resun Solar is the more directly comparable choice. A.B. Energy fills a different role as a procurement intermediary for the Italian market, which can simplify sourcing logistics but does not represent an independent product line to benchmark in technical terms. \---LINKS--- \- https://www.enfsolar.com/resun-solar \| Resun Solar Energy Co. Ltd - ENF Solar directory profile \| article \- https://www.solarfeeds.com/biz/resun-solar-energy-co-ltd/ \| Resun Solar Company Overview - production capacity and Tier 1 status \| article \- https://comparepv.com/reviews/resun-solar \| Resun Solar Panels Review 2026 - ComparePV \| review \- https://www.enfsolar.com/a-b-energy \| A.B. Energy srls - ENF Solar distributor profile Italy \| article \- https://www.youtube.com/watch?v=VAN3m8Hmmfo \| Resun Solar RS8I-M TOPCon 565-590W Solar Module Series \| video Sources: \- \[Resun Solar Energy Co. Ltd - ENF Solar\](https://www.enfsolar.com/resun-solar) \- \[Resun Solar Company Overview - Solarfeeds\](https://www.solarfeeds.com/biz/resun-solar-energy-co-ltd/) \- \[Resun Solar Panels Review 2026 - ComparePV\](https://comparepv.com/reviews/resun-solar) \- \[A.B. Energy srls - ENF Solar\](https://www.enfsolar.com/a-b-energy) \- \[Resun Solar RS8I-M TOPCon Module Series - YouTube\](https://www.youtube.com/watch?v=VAN3m8Hmmfo) Written by claude-sonnet from the figures above. ## Other comparisons - [A.B. Energy vs AE Solar](https://comparepv.com/a-b-energy-vs-ae-solar) - [AEET vs Resun Solar](https://comparepv.com/aeet-vs-resun-solar) - [A.B. Energy vs AIKO](https://comparepv.com/a-b-energy-vs-aiko) - [AKCOME vs Resun Solar](https://comparepv.com/akcome-vs-resun-solar) - [A.B. Energy vs ARTsolar](https://comparepv.com/a-b-energy-vs-artsolar) - [ASM vs Resun Solar](https://comparepv.com/asm-vs-resun-solar) --- Source: https://comparepv.com/a-b-energy-vs-resun-solar