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Solar-Fabrik Brand review

MS5 HC 300 BF-DG

300 Wp PERC Bifacial
ComparePV verdict

Space saver, no clear weak spot

Rank 11,314 of 14,005
Compare panels Datasheet PDF
Power (Wp)
300
Weak · bottom 3%
Efficiency (%)
20.70
Strong · top 2%
Density (Wp/m²)
206.6
Strong · top 1%
Temp (%/°C)
-0.350
Strong · top 14%
Weight (kg)
18.5
Typical · median 19.0 kg
Warranty (yrs)
30
Strong · top 15%

The Mono S5 Halfcut | Installer Series from Solar-Fabrik are modules designed for professional installers who require a reliable solution for mounting in challenging and non-standard rooftop conditions. The compact format, similar to classic 60-cell modules, makes these panels ideal for roofs with dormer windows, skylights, as well as for balcony and facade installations, and for retrofitting older photovoltaic systems. The Halfcut technology - using half-cut monocrystalline cells - reduces resistive losses and significantly improves energy yield, even under partial shading. Selected variants of the series utilize advanced N-Type TOPCon technology, and the bifacial design, combined with double-sided glass, allows for energy harvesting from both sides of the module. The series is characterized by excellent mechanical strength - certified Class 5 hail protection and Class A fire protection - which ensures safe operation for many years. The series is also complemented by an impressive 30-year product and performance warranty, making these panels a reliable choice for both new residential investments and the modernization of existing PV installations.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.70% 19.00% Strong · top 2% 10,764
Power density 206.6 190.0 Strong · top 1% 10,974
Temperature coefficient -0.350 -0.360 Strong · top 14% 10,419
Weight per kWp 61.7 60.0 Typical 12,670
Performance warranty 30 yrs 25 yrs Strong · top 15% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 0 caution
Best for

Residential, shaded-installations and BIPV.

Strengths
206.6 watts per square metre

Top 1% of the PERC 300-350 W segment, against a median of 190.0. Ranked 10,974th in the whole database.

20.70% module efficiency

Top 2% of the PERC 300-350 W segment, against a median of 19.00%. Ranked 10,764th in the whole database.

-0.350 %/°C temperature coefficient

Top 14% of the PERC 300-350 W segment, against a median of -0.360.

Notes from the database
  • At 20.7% efficiency, this panel is 1.2pp above typical PERC 0-400W modules (median: 19.4%)
  • Power density of 206.6 W/m² packs 12.2 W/m² more into the same footprint vs PERC 0-400W median (194.4 W/m²)
  • At -0.35%/°C, hot weather performance is typical for PERC 0-400W panels
  • Weight of 18.5 kg (2.0 kg below PERC 0-400W median of 20.5 kg) allows easier transport and roof mounting
  • Ranked #10764 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 300 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.70 % Strong Segment median 19.00%
Vmpp · Impp 34.44 V · 8.71 A Operating point at max power
Voc · Isc 41.70 V · 9.27 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1650×880×30 mm · 1.45 m² of roof
Weight 18.5 kg Typical Typical · median 19.0 kg
Cells 60 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Strong top 14% of its segment
Coefficient Voc · Isc -0.280 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Strong top 15% · median 25 yrs
End-of-warranty output 85.0 % Equals 255 W guaranteed

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.350 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solar-Fabrik MS5 HC 300 BF-DG 300 W 20.70% -0.350 18.5 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +2.6 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +2.6 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, lighter, +2.6 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +2.4 pp, -5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +2.4 pp, -5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg -15 W, lighter, +2.3 pp
GKA182M260W 260 W 23.00% - 10.8 kg -40 W, lighter, +2.3 pp
GKA182M270W 270 W 23.00% - 10.8 kg -30 W, lighter, +2.3 pp
GKA182M300W 300 W 23.00% - 16.2 kg Lighter, +2.3 pp
MS5 HC 315 BF-DG 315 W 21.69% -0.300 17.1 kg +15 W, cooler, +1.0 pp
YS350SM-90 350 W 21.00% -0.350 24.0 kg +50 W, heavier, +0.3 pp
YS345SM-90 345 W 20.70% -0.350 24.0 kg +45 W, heavier
YS340SM-90 340 W 20.40% -0.350 24.0 kg +40 W, heavier, -0.3 pp
YS335SM-90 335 W 20.10% -0.350 24.0 kg +35 W, heavier, -0.6 pp
YS330SM-90 330 W 19.80% -0.350 24.0 kg +30 W, heavier, -0.9 pp
MY5M72-215 215 W 16.80% -0.370 15.1 kg -85 W, -3.9 pp, -5 yr warranty

Found 2 panels of the same or similar size to this one, within ±10 mm. See them here Found 2 panels of the same or similar size to this one, within ±25 mm. See them here Found 2 panels of the same or similar size to this one, within ±50 mm. See them here Found 27 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Are the Solar-Fabrik Mono S5 Halfcut Installer Series panels suitable for roofs with dormers or skylights?
Yes, the Mono S5 Halfcut Installer Series was specifically designed for these scenarios. Its compact format — close to classic 60-cell modules — makes it easy to fit the panel layout around roof obstacles. The half-cut cell technology minimizes losses under partial shading from chimneys, dormers, or skylights, delivering better annual energy yield than standard full-cell modules.
What is TOPCon technology and is it worth choosing in Solar-Fabrik S5 Halfcut panels?
TOPCon (Tunnel Oxide Passivated Contact) is an advanced N-Type cell technology that reduces charge carrier recombination and achieves higher efficiency than mainstream PERC cells. In select variants of the S5 Halfcut Installer Series, this translates into a better temperature coefficient and higher energy yield on sunny, hot days. For an installer, it means fewer panels are needed to reach the same system power output.
What warranty comes with Solar-Fabrik Mono S5 Halfcut Installer Series panels?
The manufacturer provides a 30-year product warranty covering material and workmanship defects, and a 30-year linear power output warranty. This is one of the longest warranty standards available in the PV module market. Solar-Fabrik is headquartered in Germany, giving many investors additional confidence when it comes to enforcing warranty claims.
Does the bifacial design in Solar-Fabrik S5 Halfcut really generate power from both sides, and when does it pay off?
Yes, select variants of the S5 Halfcut Installer Series feature a bifacial design with glass on both front and rear. The rear side absorbs light reflected from the mounting surface — such as a light-colored roof, gravel, or snow. The bifacial gain depends on the albedo of the surroundings and the tilt angle; in a typical rooftop installation it ranges from 5 to 15% of additional annual energy output, increasing with highly reflective surfaces.
How does the Mono S5 Halfcut Installer Series perform against hail and extreme weather conditions?
The S5 Halfcut Installer Series holds certified hail protection class 5, meaning it withstands ice balls up to 50 mm in diameter at impact speeds of up to 32.2 m/s. The modules also achieved fire protection class A — the highest rating available. The glass-glass construction effectively protects the cells from moisture ingress and mechanical stress throughout the entire service life.
Can Solar-Fabrik Mono S5 Halfcut Installer Series panels be used in balcony or facade installations?
Yes, the compact dimensions of the Mono S5 Halfcut Installer Series and its glass-glass construction make it a suitable choice for balcony and facade installations. The bifacial design allows the module to harvest diffuse and reflected light, which is a particular advantage in vertical or inclined facade setups. Before installation, verify local building codes and the structural load capacity of the building.
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