---
title: "Heckert Solar vs Suntech - Brand Comparison | ComparePV"
description: "Compare Heckert Solar vs Suntech solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/heckert-solar-vs-suntech"
---

# Heckert Solar vs Suntech

Suntech has the broader catalog (255 vs 155 models). Suntech leads on peak efficiency at 24.80%.


## The two companies


| Attribute | Heckert Solar | Suntech |
| --- | --- | --- |
| Country | Germany | China |
| Headquarters | Chemnitz | Wuxi |
| Founded | 1992 | 2001 |
| Employees | 201 |  |
| Annual capacity | 0.8 GW/year |  |
| Tier 1 |  | yes |
| Listed |  |  |
| Website | [https://www.heckertsolar.com/en/](https://www.heckertsolar.com/en/) | [https://www.suntech-power.com](https://www.suntech-power.com) |

Heckert Solar is a German company based in Chemnitz, Saxony, specializing in the development, production and distribution of solar modules. Founded in 1992, the company has become a leading supplier of photovoltaic products, serving customers in over 120 countries. They manufacture high-quality, durable, and efficient...


## Catalog & Power


| Measure | Heckert Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Panel Models | 155 | 255 | +100 |
| Max Power | 715 W | 735 W | +20 W |
| Avg Power | 420 W | 505 W | +85 W |


## Efficiency


| Measure | Heckert Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.30% | 24.80% | +0.50 pp |
| Avg Efficiency | 21.43% | 21.76% | +0.33 pp |


## Reliability & Warranty


| Measure | Heckert Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.318%/°C | -0.316%/°C | +0.002 |
| Bifacial Share | 65 (42%) | 114 (45%) | +3 pp |
| Avg Warranty | 27.1 yrs | 28.4 yrs | +1.3 yr |


## Efficiency distribution

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


| Efficiency band | Heckert Solar | Suntech |
| --- | --- | --- |
| \<20% | 27 (17.4%) | 11 (4.3%) |
| 20-21% | 54 (34.8%) | 61 (23.9%) |
| 21-22% | 3 (1.9%) | 64 (25.1%) |
| 22-23% | 44 (28.4%) | 70 (27.5%) |
| 23%+ | 27 (17.4%) | 49 (19.2%) |


## Power distribution

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


| Power band | Heckert Solar | Suntech |
| --- | --- | --- |
| \<400W | 64 (41.3%) | 32 (12.5%) |
| 400-499W | 83 (53.5%) | 104 (40.8%) |
| 600-699W | 4 (2.6%) | 42 (16.5%) |
| 700W+ | 4 (2.6%) | 8 (3.1%) |
| 500-599W | 0 | 69 (27.1%) |


## Cell technology

Dominant cell tech: **TOPCon** (34%)

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


| Technology | Heckert Solar | Suntech |
| --- | --- | --- |
| TOPCon | 52 (33.5%) | 180 (70.6%) |
| PERC | 46 (29.7%) | 5 (2.0%) |
| Unknown | 35 (22.6%) | 65 (25.5%) |
| Back Contact | 20 (12.9%) | 0 |
| N-type | 2 (1.3%) | 5 (2.0%) |


## Top panels, Heckert Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ZEUS 2.2 715](https://comparepv.com/panel/heckert-solar-zeus-2-2-715) | 715 | 23.0 | -0.280 | Monocrystalline |
| 2 | [ZEUS 2.2-715](https://comparepv.com/panel/heckert-solar-zeus-2-2-715-1) | 715 | 23.0 | -0.280 | Monocrystalline |
| 3 | [ZEUS 2.2 710](https://comparepv.com/panel/heckert-solar-zeus-2-2-710) | 710 | 22.9 | -0.280 | Monocrystalline |
| 4 | [ZEUS 2.2-710](https://comparepv.com/panel/heckert-solar-zeus-2-2-710-1) | 710 | 22.9 | -0.280 | Monocrystalline |
| 5 | [ZEUS 2.1-640](https://comparepv.com/panel/heckert-solar-zeus-2-1-640) | 640 | 23.7 | -0.280 | Monocrystalline |
| 6 | [ZEUS 2.1 640W](https://comparepv.com/panel/heckert-solar-zeus-2-1-640w) | 640 | 23.7 | -0.280 | Monocrystalline |
| 7 | [ZEUS 2.1-635](https://comparepv.com/panel/heckert-solar-zeus-2-1-635) | 635 | 23.5 | -0.280 | Monocrystalline |
| 8 | [ZEUS 2.1 635W](https://comparepv.com/panel/heckert-solar-zeus-2-1-635w) | 635 | 23.5 | -0.280 | Monocrystalline |
| 9 | [ZEUS 3.0+ 108 490WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-490wp) | 490 | 24.0 | -0.260 | Monocrystalline |
| 10 | [ZEUS 3.0+ 108 490WP PERFORMANCE](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-490wp-performance) | 490 | 24.0 | -0.260 | Monocrystalline |


## 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 |


## Other comparisons

- [Heckert Solar vs A.B. Energy](https://comparepv.com/heckert-solar-vs-a-b-energy)
- [AE Solar vs Suntech](https://comparepv.com/ae-solar-vs-suntech)
- [Heckert Solar vs AEET](https://comparepv.com/heckert-solar-vs-aeet)
- [AIKO vs Suntech](https://comparepv.com/aiko-vs-suntech)
- [Heckert Solar vs AKCOME](https://comparepv.com/heckert-solar-vs-akcome)
- [ARTsolar vs Suntech](https://comparepv.com/artsolar-vs-suntech)


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Source: https://comparepv.com/heckert-solar-vs-suntech

Not in this file, on the page: the distributions above drawn as charts.