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

# Heckert Solar vs Seraphim

Seraphim has the broader catalog (160 vs 155 models). Heckert Solar leads on peak efficiency at 24.30%. Seraphim leans bifacial (69% of lineup).


## The two companies


| Attribute | Heckert Solar | Seraphim |
| --- | --- | --- |
| Country | Germany | China |
| Headquarters | Chemnitz | Changzhou |
| Founded | 1992 | 2011 |
| Employees | 201 | 1001-5000 |
| Annual capacity | 0.8 GW/year | 13 GW/year |
| Tier 1 |  | yes |
| Listed |  |  |
| Website | [https://www.heckertsolar.com/en/](https://www.heckertsolar.com/en/) | [https://www.seraphim-energy.com](https://www.seraphim-energy.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...

Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...


## Catalog & Power


| Measure | Heckert Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Panel Models | 155 | 160 | +5 |
| Max Power | 715 W | 730 W | +15 W |
| Avg Power | 420 W | 549 W | +129 W |


## Efficiency


| Measure | Heckert Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.30% | 23.50% | +0.80 pp |
| Avg Efficiency | 21.43% | 21.82% | +0.39 pp |


## Reliability & Warranty


| Measure | Heckert Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.318%/°C | -0.316%/°C | +0.002 |
| Bifacial Share | 65 (42%) | 111 (69%) | +27 pp |
| Avg Warranty | 27.1 yrs | 28.8 yrs | +1.7 yr |


## Efficiency distribution

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


| Efficiency band | Heckert Solar | Seraphim |
| --- | --- | --- |
| \<20% | 27 (17.4%) | 0 |
| 20-21% | 54 (34.8%) | 32 (20.0%) |
| 21-22% | 3 (1.9%) | 58 (36.2%) |
| 22-23% | 44 (28.4%) | 51 (31.9%) |
| 23%+ | 27 (17.4%) | 19 (11.9%) |


## Power distribution

Seraphim offers more 600W+ panels (35% of lineup)


| Power band | Heckert Solar | Seraphim |
| --- | --- | --- |
| \<400W | 64 (41.3%) | 2 (1.2%) |
| 400-499W | 83 (53.5%) | 55 (34.4%) |
| 600-699W | 4 (2.6%) | 45 (28.1%) |
| 700W+ | 4 (2.6%) | 11 (6.9%) |
| 500-599W | 0 | 47 (29.4%) |


## Cell technology

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

Dominant cell tech: **PERC** (52%)


| Technology | Heckert Solar | Seraphim |
| --- | --- | --- |
| TOPCon | 52 (33.5%) | 66 (41.2%) |
| PERC | 46 (29.7%) | 84 (52.5%) |
| Unknown | 35 (22.6%) | 0 |
| Back Contact | 20 (12.9%) | 0 |
| N-type | 2 (1.3%) | 4 (2.5%) |
| HJT | 0 | 6 (3.8%) |


## 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, Seraphim


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SRP-730-BHC-BG](https://comparepv.com/panel/seraphim-srp-730-bhc-bg) | 730 | 23.5 | -0.258 | Monocrystalline |
| 2 | [SRP-725-BHC-BG](https://comparepv.com/panel/seraphim-srp-725-bhc-bg) | 725 | 23.3 | -0.258 | Monocrystalline |
| 3 | [SRP-720-BHC-BG](https://comparepv.com/panel/seraphim-srp-720-bhc-bg) | 720 | 23.2 | -0.258 | Monocrystalline |
| 4 | [SRP-720-BTC-BG](https://comparepv.com/panel/seraphim-srp-720-btc-bg) | 720 | 23.2 | -0.290 | Monocrystalline |
| 5 | [SRP-715-BHC-BG](https://comparepv.com/panel/seraphim-srp-715-bhc-bg) | 715 | 23.0 | -0.258 | Monocrystalline |
| 6 | [SRP-715-BTC-BG](https://comparepv.com/panel/seraphim-srp-715-btc-bg) | 715 | 23.0 | -0.290 | Monocrystalline |
| 7 | [SRP-710-BHC-BG](https://comparepv.com/panel/seraphim-srp-710-bhc-bg) | 710 | 22.9 | -0.258 | Monocrystalline |
| 8 | [SRP-710-BTC-BG](https://comparepv.com/panel/seraphim-srp-710-btc-bg) | 710 | 22.9 | -0.290 | Monocrystalline |
| 9 | [SRP-705-BHC-BG](https://comparepv.com/panel/seraphim-srp-705-bhc-bg) | 705 | 22.7 | -0.258 | Monocrystalline |
| 10 | [SRP-705-BTC-BG](https://comparepv.com/panel/seraphim-srp-705-btc-bg) | 705 | 22.7 | -0.290 | Monocrystalline |


## Summary

Heckert Solar is a German module manufacturer headquartered in Chemnitz, founded in 2001, with all production kept in Germany - the original Chemnitz site plus a second plant in Langenwetzendorf opened in 2021. It has held BloombergNEF Tier 1 bankability status for several consecutive years and runs an annual production capacity of roughly 800 MW, making it one of the few European-based module makers with real industrial scale, though modest compared to Asian peers. Seraphim, founded in 2011 in Changzhou, China, operates at a much larger global scale - around 13 GW of annual capacity spread across six factories (five in China, one in South Africa) - and has held BNEF Tier 1 status for eleven consecutive years, giving it a considerably stronger institutional footprint and broader international supply reach.

Heckert Solar is positioned primarily for the European residential and small commercial (C&I) rooftop segment, with its NeMo series (monocrystalline PERC) and newer Zeus and Apollon lines built on n-type TOPCon cells, backed by long warranty terms including up to 25-year performance coverage. Seraphim serves a wider range of use cases spanning residential, commercial and utility-scale ground-mount projects, with a product line that includes TOPCon bifacial modules (Nebula series, efficiency up to around 22.5 percent) and newer HJT modules rated up to 720 W, making it a more versatile supplier for large-scale developers.

For a buyer prioritizing European manufacturing, a shorter supply chain and strong local brand presence, Heckert Solar is the more natural default despite its smaller production scale. For utility-scale developers or buyers seeking higher-wattage modules and greater volume flexibility, Seraphim's broader technology portfolio and larger manufacturing base make it the stronger fit. Both brands carry Tier 1 bankability, so the choice comes down to sourcing priorities - European provenance versus scale and technology breadth - rather than any clear gap in quality.

Written by claude-sonnet-5 from the figures above.


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

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