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

# A.B. Energy vs Solar-Fabrik

Solar-Fabrik has the broader catalog (43 vs 0 models). Solar-Fabrik leans bifacial (100% of lineup).


## The two companies


| Attribute | A.B. Energy | Solar-Fabrik |
| --- | --- | --- |
| Country | Germany | Germany |
| Headquarters | Wiesbaden | Laufach |
| Founded | 1996 | 1996 |
| Employees | 1,400 | 50-200 |
| Annual capacity |  | \<1 GW/year |
| Tier 1 |  |  |
| Listed | Xetra, Frankfurt Stock Exchange: AB9 |  |
| Website | [https://abo-energy.com](https://abo-energy.com) | [https://solar-fabrik.de](https://solar-fabrik.de) |

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...

Solar Fabrik is a German family-owned manufacturer of photovoltaic modules, specializing in high-quality glass-glass panels with N-TYPE/TOPCon technology and a 30-year product and performance warranty. Originally founded in Freiburg in 1996 as Solar-Fabrik AG, the brand was revived in 2016 after insolvency and...


## Catalog & Power


| Measure | A.B. Energy | Solar-Fabrik | Margin |
| --- | --- | --- | --- |
| Panel Models | 0 | 43 | +43 |
| Max Power | 0 W | 625 W | +625 W |
| Avg Power | 0 W | 450 W | +450 W |


## Efficiency


| Measure | A.B. Energy | Solar-Fabrik | Margin |
| --- | --- | --- | --- |
| Max Efficiency | - | 24.27% |  |
| Avg Efficiency | - | 21.96% |  |


## Reliability & Warranty


| Measure | A.B. Energy | Solar-Fabrik | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | - | -0.285%/°C |  |
| Bifacial Share | 0 (0%) | 43 (100%) | +100 pp |
| Avg Warranty | - | 29.8 yrs |  |


## Efficiency distribution

Solar-Fabrik skews to higher efficiency: 49% of lineup is 23%+


| Efficiency band | A.B. Energy | Solar-Fabrik |
| --- | --- | --- |
| \<20% | 0 | 5 (11.6%) |
| 20-21% | 0 | 3 (7.0%) |
| 21-22% | 0 | 3 (7.0%) |
| 22-23% | 0 | 11 (25.6%) |
| 23%+ | 0 | 21 (48.8%) |


## Power distribution

Solar-Fabrik offers more 600W+ panels (5% of lineup)


| Power band | A.B. Energy | Solar-Fabrik |
| --- | --- | --- |
| \<400W | 0 | 6 (14.0%) |
| 400-499W | 0 | 35 (81.4%) |
| 600-699W | 0 | 2 (4.7%) |


## Cell technology

Dominant cell tech: **TOPCon** (63%)


| Technology | A.B. Energy | Solar-Fabrik |
| --- | --- | --- |
| TOPCon | 0 | 27 (62.8%) |
| Back Contact | 0 | 13 (30.2%) |
| N-type | 0 | 2 (4.7%) |
| PERC | 0 | 1 (2.3%) |


## Top panels, Solar-Fabrik


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [S4-DG625-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg625-132tmax) | 625 | 23.1 | -0.300 | Monocrystalline |
| 2 | [S4-DG620-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg620-132tmax) | 620 | 22.9 | -0.300 | Monocrystalline |
| 3 | [Mono S4 Halfcut BC White 490](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-490) | 490 | 24.0 | -0.260 | Monocrystalline |
| 4 | [Mono S4 Halfcut BC Series White 490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) | 490 | 24.0 | - | Monocrystalline |
| 5 | [Mono S4 Halfcut BC White 485](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-485) | 485 | 23.8 | -0.260 | Monocrystalline |
| 6 | [Mono S4 Quartercut Premium DE Series 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-485w) | 485 | 24.3 | -0.260 | Monocrystalline |
| 7 | [Mono S4 Halfcut BC White 480-490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-480-490w) | 485 | 23.8 | -0.260 | Monocrystalline |
| 8 | [Mono S4 Halfcut BC Series White 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-485w) | 485 | 23.8 | - | Monocrystalline |
| 9 | [Mono S4 Halfcut BC Full Black 480W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-full-black-480w) | 480 | 23.5 | -0.260 | Monocrystalline |
| 10 | [Mono S4 Halfcut BC White 480](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-480) | 480 | 23.5 | -0.260 | Monocrystalline |


## Summary

Solar-Fabrik is a German photovoltaic company founded in 1996 by solar pioneer Georg Salvamoser in Freiburg, making it one of the longest-standing module brands in Europe. After transitioning production to China in 2018, the company - which became family-run under Christian Laibacher from 2016 onward - announced a return to domestic manufacturing with the May 2025 groundbreaking of "Factory One," a 300 MW plant in Hosbach near Aschaffenburg, Bavaria, focused on N-type TOPCon and heterojunction (HJT) cell technology. Solar-Fabrik does not currently appear on BloombergNEF Tier 1 lists, which tend to favor high-volume Asian producers, but its German heritage and stated warranty terms of up to 30 years on product and performance reinforce its positioning as a quality-focused European niche brand. A.B. Energy SRLS, by contrast, is an Italian company whose public profile describes it primarily as a distributor and integrator of renewable energy products drawing on roughly 30 years of shareholder experience in the electrical and electronics sector; independent assessments of it as a solar panel manufacturer in its own right are scarce, and no Tier 1 or BloombergNEF bankability status has been identified for the brand.

In terms of product scope, Solar-Fabrik targets residential and small commercial rooftop installations across Europe, with its new factory line emphasizing double-glass N-type TOPCon modules in the 450 W range - a technology well-suited to long-warranty, quality-first buyers seeking European provenance. A.B. Energy's catalog, to the extent it can be assessed from available sources, appears to center on distributing third-party equipment rather than proprietary panel series, which limits meaningful product-level comparison.

For a buyer seeking a solar module from a traceable European brand with verified manufacturing history and a long warranty track record, Solar-Fabrik is the clearer choice heading into 2026. A.B. Energy may suit buyers in Italy looking for local service and turnkey energy solutions, but its standing as an independent panel manufacturer cannot be confirmed from current public sources.

\---LINKS---

\- https://www.solarfeeds.com/biz/solar-fabrik-ag/ \| Solar Fabrik company overview - production capacity and Tier 1 status \| article

\- https://www.pv-magazine.de/unternehmensmeldungen/solar-fabrik-startet-aufbau-der-solarmodul-produktion-in-deutschland-factory-one-nimmt-form-an/ \| pv magazine - Solar Fabrik Factory One German production launch 2025 \| article

\- https://www.enfsolar.com/a-b-energy \| ENF Solar - A.B. Energy SRLS company entry, Italy \| article

\- https://www.blackridgeresearch.com/blog/latest-list-of-top-solar-panel-manufacturers-in-germany-deutschland \| Top solar panel manufacturers in Germany 2026 overview \| article

Sources:

\- \[Solar Fabrik Company Overview\](https://www.solarfeeds.com/biz/solar-fabrik-ag/)

\- \[pv magazine - Solar Fabrik Factory One\](https://www.pv-magazine.de/unternehmensmeldungen/solar-fabrik-startet-aufbau-der-solarmodul-produktion-in-deutschland-factory-one-nimmt-form-an/)

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

\- \[Top Solar Panel Manufacturers in Germany\](https://www.blackridgeresearch.com/blog/latest-list-of-top-solar-panel-manufacturers-in-germany-deutschland)

Written by claude-sonnet from the figures above.


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