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

# Heckert Solar vs Q-Cells

Heckert Solar has the broader catalog (155 vs 89 models). Heckert Solar leads on peak efficiency at 24.30%.


## The two companies


| Attribute | Heckert Solar | Q-Cells |
| --- | --- | --- |
| Country | Germany | South Korea |
| Headquarters | Chemnitz | Seoul |
| Founded | 1992 | 1999 |
| Employees | 201 | 2000+ |
| Annual capacity | 0.8 GW/year | 11.2 GW/year |
| Tier 1 |  | yes |
| Listed |  | NASDAQ: HQCL |
| Website | [https://www.heckertsolar.com/en/](https://www.heckertsolar.com/en/) | [https://www.qcells.com](https://www.qcells.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...

Qcells is a renowned global provider of complete energy solutions, specializing in solar cells and modules, energy storage solutions, downstream project business, and energy retail. The company has a strong heritage dating back to its foundation in Germany and has become a leader in technology innovations. As an...


## Catalog & Power


| Measure | Heckert Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 155 | 89 | +66 |
| Max Power | 715 W | 675 W | +40 W |
| Avg Power | 420 W | 468 W | +48 W |


## Efficiency


| Measure | Heckert Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.30% | 23.20% | +1.10 pp |
| Avg Efficiency | 21.43% | 21.21% | +0.21 pp |


## Reliability & Warranty


| Measure | Heckert Solar | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.318%/°C | -0.325%/°C | +0.007 |
| Bifacial Share | 65 (42%) | 35 (39%) | +3 pp |
| Avg Warranty | 27.1 yrs | 27.0 yrs | +0.1 yr |


## Efficiency distribution

Heckert Solar skews to higher efficiency: 17% of lineup is 23%+


| Efficiency band | Heckert Solar | Q-Cells |
| --- | --- | --- |
| \<20% | 27 (17.4%) | 7 (7.9%) |
| 20-21% | 54 (34.8%) | 29 (32.6%) |
| 21-22% | 3 (1.9%) | 30 (33.7%) |
| 22-23% | 44 (28.4%) | 21 (23.6%) |
| 23%+ | 27 (17.4%) | 2 (2.2%) |


## Power distribution

Q-Cells offers more 600W+ panels (19% of lineup)


| Power band | Heckert Solar | Q-Cells |
| --- | --- | --- |
| \<400W | 64 (41.3%) | 20 (22.5%) |
| 400-499W | 83 (53.5%) | 41 (46.1%) |
| 600-699W | 4 (2.6%) | 17 (19.1%) |
| 700W+ | 4 (2.6%) | 0 |
| 500-599W | 0 | 11 (12.4%) |


## Cell technology

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

Dominant cell tech: **PERC** (43%)


| Technology | Heckert Solar | Q-Cells |
| --- | --- | --- |
| TOPCon | 52 (33.5%) | 8 (9.0%) |
| PERC | 46 (29.7%) | 38 (42.7%) |
| Unknown | 35 (22.6%) | 20 (22.5%) |
| Back Contact | 20 (12.9%) | 0 |
| N-type | 2 (1.3%) | 23 (25.8%) |


## 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, Q-Cells


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-675) | 675 | 21.7 | -0.340 | Monocrystalline |
| 2 | [Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 3 | [Q.PEAK DUO ML-G12S.3 / BFG 665](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 4 | [Q.PEAK DUO ML-G12S.3 / BFG 660](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 5 | [Q.PEAK DUO ML-G12S.3 / BFG 655](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 6 | [Q.PEAK DUO ML-G12S.3 / BFG 650](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 7 | [Q.TRON XL-G2.3 / BFG 645](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-645) | 645 | 23.1 | -0.290 | Monocrystalline |
| 8 | [Q.TRON XL-G2.3 / BFG 640](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-640) | 640 | 22.9 | -0.290 | Monocrystalline |
| 9 | [Q.TRON XL-G2.3 / BFG 635](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-635) | 635 | 22.7 | -0.300 | Monocrystalline |
| 10 | [Q.TRON XL-G2.3 / BFG 630](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-630) | 630 | 22.6 | -0.300 | Monocrystalline |


## Summary

Heckert Solar is a German manufacturer founded in the 1990s and headquartered in Chemnitz, Saxony, where it maintains one of Europe's last fully domestic solar module production lines with an annual capacity of roughly 800 to 900 MWp. The company is a niche but respected player in the European market, though it has not been confirmed as a BloombergNEF Tier 1 bankability-listed manufacturer, and it faced staff reductions in 2024. Q-Cells, now operating as Hanwha Q CELLS under South Korea's Hanwha Group, traces its origins to Bitterfeld-Wolfen, Germany, but has grown into one of the world's largest solar producers with a global nameplate capacity of roughly 12.4 GW and shipments projected to exceed 9 GW in 2025. Q-Cells holds confirmed BloombergNEF Top Tier bankability status, has been named an S&P Global 2025 Tier 1 cleantech company, and received a $1.45 billion U.S. Department of Energy loan guarantee in late 2024. On institutional footprint, Q-Cells is in a different league.

Heckert Solar's catalog covers three families: the NeMo series using Mono-PERC technology for cost-sensitive residential and small commercial rooftops, the Apollon line built on n-type TOPCon cells for mid-range buyers, and the premium Zeus glass-glass bifacial series using n-type TOPCon or back-contact cells, reaching efficiency up to 23.5% and carrying a 30-year product and performance warranty - the longest in this comparison. Q-Cells targets a broader audience with its Q.TRON residential line, which reaches efficiencies up to 23.7% on top models, offers a 25-year product warranty with low annual degradation rates, and is available across residential, commercial, and utility-scale applications in the U.S., European, and Asian markets.

For most buyers in 2025, Q-Cells is the safer default: its global supply chain, stronger bankability standing, and broad installer network reduce project risk substantially. Heckert Solar is a compelling choice for European buyers who specifically value domestic manufacturing, supply-chain transparency, or the extended 30-year Zeus warranty, and it remains a credible option for German residential projects where local service matters.

\---LINKS---

\- https://www.pv-magazine.com/2021/09/30/heckert-solar-inaugurates-400-mw-solar-panel-factory-in-germany/ \| Heckert Solar inaugurates 400 MW solar panel factory in Germany \| article

\- https://comparepv.com/reviews/heckert \| Heckert Solar Panels Review 2026 - Pros, Cons and Specs \| review

\- https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review \| Expert Review of Qcells Solar Panels for 2025 \| review

\- https://www.energysage.com/solar/best-solar-panels-complete-ranking/q-cells-solar-panels-complete-review/ \| Q CELLS Solar Panels - The Complete Review - EnergySage \| review

\- https://www.pv-magazine.com/press-releases/q-cells-achieves-top-tier-class-bankability-score-in-latest-bloombergnef-report/ \| Q Cells achieves top tier class bankability score in BloombergNEF report \| article

Sources:

\- \[Heckert Solar Panels Review 2026 \| ComparePV\](https://comparepv.com/reviews/heckert)

\- \[Heckert Solar inaugurates 400 MW factory in Germany \| pv-magazine\](https://www.pv-magazine.com/2021/09/30/heckert-solar-inaugurates-400-mw-solar-panel-factory-in-germany/)

\- \[Expert Review of Qcells Solar Panels for 2025 \| SolarReviews\](https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review)

\- \[Q CELLS Solar Panels - The Complete Review \| EnergySage\](https://www.energysage.com/solar/best-solar-panels-complete-ranking/q-cells-solar-panels-complete-review/)

\- \[Q Cells achieves top tier class bankability score in BloombergNEF report \| pv-magazine\](https://www.pv-magazine.com/press-releases/q-cells-achieves-top-tier-class-bankability-score-in-latest-bloombergnef-report/)

Written by claude-sonnet from the figures above.


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- [Heckert Solar vs A.B. Energy](https://comparepv.com/heckert-solar-vs-a-b-energy)
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Source: https://comparepv.com/heckert-solar-vs-q-cells

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