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Solitek Brand review

Solrif D Satin 445

445 Wp TOPCon Bifacial
ComparePV verdict

Middle of its segment, heavy for its output

Rank 6,156 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.06
Typical · median 22.00%
Density (Wp/m²)
212.4
Weak · bottom 8%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
35.0
Weak · 13.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The SoliTek SOLRIF D Satin series are advanced BIPV (Building Integrated Photovoltaics) panels that replace traditional roofing materials, creating a sealed and aesthetically pleasing solar installation without the need for additional sealing elements. A key feature is the satin glass with an extremely low reflection rate - an ideal solution for locations sensitive to glare, such as airports, schools, highways, or military installations, where standard panels cause distracting light reflections. Modules based on N-type TOPCon bifacial technology (3.2+3.2 mm TVG glass-glass construction) offer higher thermal stability and slower degradation compared to PERC panels, and a 30-year product and performance warranty is one of the longest standards in the industry. The prestigious Cradle to Cradle Gold certification - as the only panel in this class worldwide - confirms that 98% of materials are recyclable, and that the entire production process uses renewable energy. Durability is also confirmed by resistance to hail (Class 5, 50mm diameter), ammonia, salt spray, and snow loads up to 10,500 Pa. The patented Solrif D mounting system from Ernst Schweizer AG integrates the panel directly with the roof structure, eliminating the need for separate flashing or gutters. The series is primarily intended for premium investments - commercial buildings, public facilities, and architectural projects that require aesthetics, durability, and compliance with sustainable building standards.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.06% 22.00% Typical 6,205
Power density 212.4 220.2 Weak · bottom 8% 9,043
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 78.7 51.4 Weak · bottom 1% 13,701
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

BIPV and commercial.

Not ideal for

Weight-limited structures and roofs where every square metre has to count.

Watch-outs
78.7 kg per kWp

Bottom 1% of the TOPCon 400-450 W segment, against a median of 51.4. Ranked 13,701st in the whole database.

212.4 watts per square metre

Bottom 8% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 9,043rd in the whole database.

Notes from the database
  • At 22.1% efficiency, this panel is on par with typical TOPCon 400-450W modules
  • Power density of 212.4 W/m² is 7.8 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
  • At -0.30%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 35.0 kg (13.0 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
  • #6205 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.06 % Typical Segment median 22.00%
Vmpp · Impp 29.40 V · 15.14 A Operating point at max power
Voc · Isc 34.40 V · 15.79 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1806×1160×20 mm · 2.09 m² of roof
Weight 35.0 kg Weak Weak · 13.0 kg above median
Cells 96 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 46 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.0 % Equals 401 W guaranteed
Degradation 1.00 → 0.31 % First year, then annual

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
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solitek Solrif D Satin 445 445 W 22.06% -0.300 35.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, lighter, +2.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, lighter, +2.4 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, lighter, +2.4 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, 16 kg lighter, +2.2 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, lighter, +2.2 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg Cooler, lighter, +2.2 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, lighter, +2.2 pp
SOLRIF D Agro 300 300 W 14.87% -0.300 35.0 kg -145 W, -7.2 pp
SOLRIF D Terracota Bronze 370 370 W 18.34% -0.300 35.0 kg -75 W, -3.7 pp
SOLRIF D Black 455 455 W 22.56% -0.300 35.0 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, lighter, +2.9 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, lighter, +2.6 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +2.4 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +55 W, lighter, +2.4 pp

Found 10 panels of the same or similar size to this one, within ±10 mm. See them here Found 10 panels of the same or similar size to this one, within ±25 mm. See them here Found 1615 panels of the same or similar size to this one, within ±50 mm. See them here Found 4014 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Why do SoliTek SOLRIF D Satin panels feature satin glass, and which buildings benefit most from it?
The anti-glare satin glass surface reduces luminance to approximately 4,000 cd/m², eliminating the intense reflections produced by standard panels with clear glass. The solution was engineered for glare-sensitive locations such as airports, schools, expressways, and military facilities, where reflected sunlight poses safety risks or violates local regulations. Wherever bright solar reflections are a hazard or compliance issue, the SOLRIF D Satin directly addresses that problem.
How does the Solrif D mounting system work, and does it truly replace conventional roofing?
Yes. The patented Solrif D in-roof system by Ernst Schweizer AG integrates the panel directly into the roof structure, serving simultaneously as weatherproofing and a power generator. Panels slide into aluminum profiles similarly to roof tiles, with no need for separate battens, gutters, or sealing elements. Installation is fast, up to 20 modules per hour, and each module can be replaced independently. The system supports both full roof integration and partial replacement of existing coverings.
What warranty comes with SoliTek SOLRIF D Satin panels?
SoliTek provides a 30-year product warranty covering manufacturing defects and a 30-year power output warranty, among the longest standards available in the PV industry. The dual-glass glass-to-glass construction using 3.2+3.2 mm TVG combined with N-type TOPCon bifacial technology results in slower degradation rates than PERC cells, making the warranted output figures realistically achievable over the entire warranty period.
How does the TOPCon bifacial technology in the SOLRIF D Satin differ from standard PERC cells?
N-type TOPCon cells deliver higher conversion efficiency and a lower temperature coefficient than PERC, meaning less power loss on hot days. The bifacial design allows the panel to harvest irradiance from both glass surfaces, potentially boosting energy yield by several percentage points compared to monofacial modules. N-type cells also exhibit lower annual degradation rates, which is especially relevant for the 30-year operational horizon this series is built around.
What weather resistance do the SOLRIF D Satin panels offer, and are they suitable for harsh climates?
The SOLRIF D Satin series has passed rigorous durability testing. The panels hold hail resistance class 5, corresponding to 50 mm ice balls, the highest class in standard certification tests. Maximum certified snow load is 10,500 Pa. Modules are also rated for resistance to ammonia, salt mist, and corrosion, making them suitable for industrial and coastal environments as well as regions with heavy snowfall.
What does the Cradle to Cradle Gold certification mean for SOLRIF D Satin panels, and why does it matter for public-sector projects?
The Cradle to Cradle Gold certification confirms that 98% of materials used in the panel are recyclable and that SoliTek's entire manufacturing process runs on renewable energy. The SOLRIF D Satin is the only BIPV panel in the world holding this certification in its class. For public tenders, commercial real estate, and projects subject to ESG, BREEAM, or LEED requirements, this certification is a direct procurement argument and simplifies compliance with sustainable construction criteria.
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