--- title: "Solar-Fabrik Panels Review 2026: Pros, Cons & Specs | ComparePV" description: "In-depth Solar-Fabrik solar panel review 2026. 43 models analyzed: efficiency, cell technology, warranty, top picks. Compare Solar-Fabrik panels on ComparePV." source: "https://comparepv.com/reviews/solar-fabrik" --- # Solar-Fabrik panels, *read off the datasheets* 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... Everything below is computed from those 43 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Solar-Fabrik does not publish a figure, it is left out of the average rather than assumed. ## The company - **Founded:** 1996 - **Headquarters:** Laufach, Germany - **Annual capacity:** \<1 GW - **Employees:** 50-200 Company facts, not datasheet figures. Tier 1 is a financier's bankability list, and says nothing about how a panel performs. ## Key figures | Measure | Value | Note | | --- | --- | --- | | Panels | 43 | models in the database | | Average efficiency | 22.0 % | across the catalogue | | Best efficiency | 24.3 % (good) | their strongest module | | Power range | 290-625 Wp | smallest to largest | | Bifacial share | 100 % | 43 dual-sided models | | Average warranty | 30 years | guaranteed output term | ## 01. The top of the range The leaders of Solar-Fabrik's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof. ### Most efficient module efficiency | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [Mono S4 Quartercut Premium DE Series 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-485w) | 485 Wp | 24.3% (good) | | 2 | [Mono S4 Quartercut Premium DE Series 480W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-480w) | 480 Wp | 24.0% (good) | | 3 | [Mono S4 Halfcut BC White 490](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-490) | 490 Wp | 24.0% (good) | | 4 | [Mono S4 Halfcut BC Series White 490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) | 490 Wp | 24.0% (good) | | 5 | [Mono S4 Halfcut BC Series White 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-485w) | 485 Wp | 23.8% (good) | - Mono S4 Quartercut Premium DE Series 485W - Monocrystalline bifacial - Mono S4 Quartercut Premium DE Series 480W - Monocrystalline bifacial - Mono S4 Halfcut BC White 490 - Monocrystalline bifacial - Mono S4 Halfcut BC Series White 490W - Monocrystalline bifacial - Mono S4 Halfcut BC Series White 485W - Monocrystalline bifacial [Sort the whole catalogue by efficiency](https://comparepv.com/panels/solar-fabrik?sort_by=efficiency&sort_order=desc) ### Highest power nameplate output | # | Panel | efficiency | power | | --- | --- | --- | --- | | 1 | [S4-DG625-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg625-132tmax) | 23.1% (good) | 625 Wp | | 2 | [S4-DG620-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg620-132tmax) | 22.9% (good) | 620 Wp | | 3 | [Mono S4 Halfcut BC White 490](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-490) | 24.0% (good) | 490 Wp | | 4 | [Mono S4 Halfcut BC Series White 490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) | 24.0% (good) | 490 Wp | | 5 | [Mono S4 Halfcut BC White 485](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-485) | 23.8% (good) | 485 Wp | - S4-DG625-132TMax - Monocrystalline bifacial - S4-DG620-132TMax - Monocrystalline bifacial - Mono S4 Halfcut BC White 490 - Monocrystalline bifacial - Mono S4 Halfcut BC Series White 490W - Monocrystalline bifacial - Mono S4 Halfcut BC White 485 - Monocrystalline bifacial [Sort the whole catalogue by power](https://comparepv.com/panels/solar-fabrik?sort_by=power&sort_order=desc) ## 02. By what the array is for Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case. ### For a house roof 380-460 Wp | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [Mono S4 Halfcut Trend White 460W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-trend-white-460w) | 460 Wp | 23.0% (good) | | 2 | [S4-DG460-96TMax (White)](https://comparepv.com/panel/solar-fabrik-s4-dg460-96tmax-white) | 460 Wp | 23.0% (good) | | 3 | [Mono S4 Halfcut Trend Full Black 460W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-trend-full-black-460w) | 460 Wp | 23.0% (good) | | 4 | [S4-DG460-96TMax (Full Black)](https://comparepv.com/panel/solar-fabrik-s4-dg460-96tmax-full-black) | 460 Wp | 23.0% (good) | | 5 | [Mono S4 Halfcut Trend White 455W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-trend-white-455w) | 455 Wp | 22.8% (good) | - Mono S4 Halfcut Trend White 460W - Monocrystalline bifacial - S4-DG460-96TMax (White) - Monocrystalline bifacial - Mono S4 Halfcut Trend Full Black 460W - Monocrystalline bifacial - S4-DG460-96TMax (Full Black) - Monocrystalline bifacial - Mono S4 Halfcut Trend White 455W - Monocrystalline bifacial ### For a commercial array 500 Wp and up | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [S4-DG625-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg625-132tmax) | 625 Wp | 23.1% (good) | | 2 | [S4-DG620-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg620-132tmax) | 620 Wp | 22.9% (good) | - S4-DG625-132TMax - Monocrystalline bifacial - S4-DG620-132TMax - Monocrystalline bifacial ### For a ground mount dual-sided | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [Mono S4 Quartercut Premium DE Series 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-485w) | 485 Wp | 24.3% (good) | | 2 | [Mono S4 Quartercut Premium DE Series 480W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-480w) | 480 Wp | 24.0% (good) | | 3 | [Mono S4 Halfcut BC White 490](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-490) | 490 Wp | 24.0% (good) | | 4 | [Mono S4 Halfcut BC Series White 490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) | 490 Wp | 24.0% (good) | | 5 | [Mono S4 Halfcut BC Series White 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-485w) | 485 Wp | 23.8% (good) | - Mono S4 Quartercut Premium DE Series 485W - Monocrystalline bifacial - Mono S4 Quartercut Premium DE Series 480W - Monocrystalline bifacial - Mono S4 Halfcut BC White 490 - Monocrystalline bifacial - Mono S4 Halfcut BC Series White 490W - Monocrystalline bifacial - Mono S4 Halfcut BC Series White 485W - Monocrystalline bifacial ## 03. What the catalogue is made of Shares are of the 43 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one. [Cell technology across the market](https://comparepv.com/stats/cell-technology) ### Cell technology share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | TOPCon | 62.8% | 27 | | | Back Contact | 30.2% | 13 | | | N-type | 4.7% | 2 | | | PERC | 2.3% | 1 | TOPCon accounts for 62.8% of the catalogue - 27 of 43 modules. ### Efficiency spread share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | \<20% | 11.6% | 5 | | | 20-21% | 7.0% | 3 | | | 21-22% | 7.0% | 3 | | | 22-23% | 25.6% | 11 | | | 23%+ | 48.8% | 21 | ## 04. Strengths and gaps Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built. ### What this catalogue is good at - **Strength:** High-efficiency panels available (up to 24.3%) - **Strength:** Strong bifacial lineup - 100% of portfolio supports dual-sided generation - **Strength:** Strong warranty coverage averaging 30 years - **Strength:** High-power panels available (up to 625W) for commercial applications - **Strength:** Established manufacturer with 30+ years of experience - **Strength:** Large-scale production capacity of \<1 GW ## 05. In short > **Solar-Fabrik:** Solar-Fabrik is an industry leader in efficiency, offering 43 panels suitable for both residential and commercial buyers. With an average efficiency of 22.0% and top models reaching 24.3%, their panels deliver competitive performance. ### Common questions #### Is Solar-Fabrik a good solar panel manufacturer? Solar-Fabrik offers 43 solar panel models with an average efficiency of 22.0%. Check their full panel lineup on ComparePV to find the best model for your needs. #### What types of solar panels does Solar-Fabrik make? Solar-Fabrik manufactures panels ranging from 290W to 625W, covering both residential and commercial applications. Their portfolio includes TOPCon (63%), Back Contact (30%), N-type (5%) cell technologies. #### How efficient are Solar-Fabrik solar panels? Solar-Fabrik panels have an average efficiency of 22.0%, with their most efficient model reaching 24.3%. This puts them among the industry leaders in the current market. #### Does Solar-Fabrik make bifacial solar panels? Yes, Solar-Fabrik offers 43 bifacial panels, representing 100% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems. #### What warranty does Solar-Fabrik offer on their solar panels? Solar-Fabrik panels come with an average performance warranty of 30 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels. #### Are Solar-Fabrik panels good for residential use? Solar-Fabrik offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications. #### Does Solar-Fabrik use TOPCon technology? Yes, Solar-Fabrik has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production. ## 06. Compared with A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes. [Build your own](https://comparepv.com/comparisons) - [Solar-Fabrik vs Jinko Solar](https://comparepv.com/jinko-solar-vs-solar-fabrik) - [Solar-Fabrik vs JA Solar](https://comparepv.com/ja-solar-vs-solar-fabrik) - [Solar-Fabrik vs Trina Solar](https://comparepv.com/solar-fabrik-vs-trina-solar) - [Solar-Fabrik vs LONGi](https://comparepv.com/longi-vs-solar-fabrik) - [Solar-Fabrik vs Canadian Solar](https://comparepv.com/canadian-solar-vs-solar-fabrik) - [Solar-Fabrik vs Q-Cells](https://comparepv.com/q-cells-vs-solar-fabrik) - [Solar-Fabrik vs AIKO](https://comparepv.com/aiko-vs-solar-fabrik) - [Solar-Fabrik vs Hyundai](https://comparepv.com/hyundai-vs-solar-fabrik) ## Elsewhere - [All Solar-Fabrik panels 43](https://comparepv.com/panels/solar-fabrik) - [All manufacturers](https://comparepv.com/reviews) - [Panel database](https://comparepv.com/panels) - [Market statistics](https://comparepv.com/stats) --- Source: https://comparepv.com/reviews/solar-fabrik