---
title: "A.B. Energy vs Suntech - Brand Comparison | ComparePV"
description: "Compare A.B. Energy vs Suntech solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/a-b-energy-vs-suntech"
---

# A.B. Energy vs Suntech

Suntech has the broader catalog (255 vs 0 models). Suntech leans bifacial (45% of lineup).


## The two companies


| Attribute | A.B. Energy | Suntech |
| --- | --- | --- |
| Country | Germany | China |
| Headquarters | Wiesbaden | Wuxi |
| Founded | 1996 | 2001 |
| Employees | 1,400 |  |
| Annual capacity |  |  |
| Tier 1 |  | yes |
| Listed | Xetra, Frankfurt Stock Exchange: AB9 |  |
| Website | [https://abo-energy.com](https://abo-energy.com) | [https://www.suntech-power.com](https://www.suntech-power.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 | A.B. Energy | Suntech | Margin |
| --- | --- | --- | --- |
| Panel Models | 0 | 255 | +255 |
| Max Power | 0 W | 735 W | +735 W |
| Avg Power | 0 W | 505 W | +505 W |


## Efficiency


| Measure | A.B. Energy | Suntech | Margin |
| --- | --- | --- | --- |
| Max Efficiency | - | 24.80% |  |
| Avg Efficiency | - | 21.76% |  |


## Reliability & Warranty


| Measure | A.B. Energy | Suntech | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | - | -0.316%/°C |  |
| Bifacial Share | 0 (0%) | 114 (45%) | +45 pp |
| Avg Warranty | - | 28.4 yrs |  |


## Efficiency distribution

Suntech skews to higher efficiency: 19% of lineup is 23%+


| Efficiency band | A.B. Energy | Suntech |
| --- | --- | --- |
| \<20% | 0 | 11 (4.3%) |
| 20-21% | 0 | 61 (23.9%) |
| 21-22% | 0 | 64 (25.1%) |
| 22-23% | 0 | 70 (27.5%) |
| 23%+ | 0 | 49 (19.2%) |


## Power distribution

Suntech offers more 600W+ panels (20% of lineup)


| Power band | A.B. Energy | Suntech |
| --- | --- | --- |
| \<400W | 0 | 32 (12.5%) |
| 400-499W | 0 | 104 (40.8%) |
| 500-599W | 0 | 69 (27.1%) |
| 600-699W | 0 | 42 (16.5%) |
| 700W+ | 0 | 8 (3.1%) |


## Cell technology

Dominant cell tech: **TOPCon** (71%)


| Technology | A.B. Energy | Suntech |
| --- | --- | --- |
| TOPCon | 0 | 180 (70.6%) |
| Unknown | 0 | 65 (25.5%) |
| PERC | 0 | 5 (2.0%) |
| N-type | 0 | 5 (2.0%) |


## Top panels, Suntech


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [STP735S-D66-Nsh+](https://comparepv.com/panel/suntech-stp735s-d66-nsh) | 735 | 23.7 | -0.280 | Monocrystalline |
| 2 | [STP730S-D66-Nsh+](https://comparepv.com/panel/suntech-stp730s-d66-nsh) | 730 | 23.5 | -0.280 | Monocrystalline |
| 3 | [STP725S-D66-Nsh+](https://comparepv.com/panel/suntech-stp725s-d66-nsh) | 725 | 23.3 | -0.280 | Monocrystalline |
| 4 | [STP720S-D66-Nsh+](https://comparepv.com/panel/suntech-stp720s-d66-nsh) | 720 | 23.2 | -0.280 | Monocrystalline |
| 5 | [STP715S-D66-Nsh+](https://comparepv.com/panel/suntech-stp715s-d66-nsh) | 715 | 23.0 | -0.280 | Monocrystalline |
| 6 | [STP710S-D66-Nsh+](https://comparepv.com/panel/suntech-stp710s-d66-nsh) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [STP705S-D66-Nsh+](https://comparepv.com/panel/suntech-stp705s-d66-nsh) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [STP700S-D66-Nsh+](https://comparepv.com/panel/suntech-stp700s-d66-nsh) | 700 | 22.5 | -0.290 | Monocrystalline |
| 9 | [STP675S-D66/Wmh](https://comparepv.com/panel/suntech-stp675s-d66-wmh) | 675 | 21.7 | -0.340 | Monocrystalline |
| 10 | [STP670S-D66/Wmh](https://comparepv.com/panel/suntech-stp670s-d66-wmh) | 670 | 21.6 | -0.340 | Monocrystalline |


## Summary

Suntech is a Chinese solar module manufacturer founded in 2001 and headquartered in Wuxi, Jiangsu Province. The company - originally established by Dr. Zhengrong Shi - grew rapidly to become one of the world's largest PV suppliers, with cumulative global shipments reported at more than 55 GW as of 2024 and sales reaching over 100 countries. Suntech holds a confirmed Tier 1 ranking from BloombergNEF, reflecting its bankability with major project financiers. A.B. Energy (operating as Gruppo AB) is a substantially different kind of business: an Italian manufacturer founded in 1981 and headquartered in Orzinuovi, in the province of Brescia. Its core specialization is packaged cogeneration and combined-heat-and-power plants running on natural gas, biogas, landfill gas, and biomethane - not photovoltaic modules as a standalone product. With operations in over 22 countries and more than a thousand systems built and serviced, AB has a strong institutional footprint in the distributed energy and biogas sectors, while Suntech's footprint is specifically within the solar module supply chain.

Suntech's current product catalog centers on n-type TOPCon technology, most visibly in its Ultra V Pro series, which targets both residential rooftops and larger commercial or ground-mount projects. The company has been transitioning away from PERC toward TOPCon, following the broader industry shift. A.B. Energy, by contrast, offers photovoltaic integration only as a component of larger energy systems - pairing PV generation with its ECOMAX cogeneration plants or BIOCH4NGE biomethane upgrading systems to balance programmable and non-programmable renewable output. It does not appear to manufacture or brand solar modules independently.

For any buyer whose primary goal is procuring solar panels - whether for a rooftop, a commercial facility, or a utility project - Suntech is the directly relevant option here. It is a dedicated, bankable module manufacturer with a current TOPCon lineup and a long global track record. A.B. Energy serves a different market entirely: operators of biogas facilities, industrial heat-and-power users, or project developers who need cogeneration assets. The two brands are not meaningfully interchangeable, and comparing them as solar panel manufacturers is not an apples-to-apples exercise.

\---LINKS---

\- https://8msolar.com/suntech-solar-panels-review/ \| Suntech Solar Panels Review 2025 - 8MSolar \| review

\- https://comparepv.com/reviews/suntech \| Suntech Solar Panels Review 2026 - ComparePV \| review

\- https://it.suntech-power.com/suntech-ranked-one-of-the-worlds-most-bankable-pv-module-brands-by-bloomberg-new-energy-finance/ \| Suntech ranked Most Bankable PV Module Brand by BNEF \| article

\- https://www.enfsolar.com/a-b-energy \| A.B. Energy srls - ENF Solar company profile \| article

\- https://www.gruppoab.com/biogas-cogeneration/ \| Gruppo AB - Biogas Cogeneration product overview \| article

Sources:

\- \[Suntech Solar Panels Review (2025) - 8MSolar\](https://8msolar.com/suntech-solar-panels-review/)

\- \[Suntech Solar Panels Review 2026 - ComparePV\](https://comparepv.com/reviews/suntech)

\- \[Suntech ranked Most Bankable PV Module Brand by BNEF\](https://it.suntech-power.com/suntech-ranked-one-of-the-worlds-most-bankable-pv-module-brands-by-bloomberg-new-energy-finance/)

\- \[A.B. Energy srls - ENF Solar\](https://www.enfsolar.com/a-b-energy)

\- \[Gruppo AB - Biogas Cogeneration\](https://www.gruppoab.com/biogas-cogeneration/)

Written by claude-sonnet from the figures above.


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- [ASM vs Suntech](https://comparepv.com/asm-vs-suntech)


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Source: https://comparepv.com/a-b-energy-vs-suntech