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Solitek Brand review

Blackstar 455

455 Wp TOPCon Bifacial
ComparePV verdict

Middle of its segment, heavy for its output

Rank 4,766 of 14,005
Compare panels Datasheet PDF
Power (Wp)
455
Typical for its class
Efficiency (%)
22.77
Typical · median 22.52%
Density (Wp/m²)
227.7
Typical · median 225.2
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
25.5
Weak · 1.5 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Blackstar series by SoliTek are premium photovoltaic panels built using N-type TOPCon bifacial technology, which allows them to capture solar energy from both sides of the module - significantly increasing energy yield, even in diffused or reflected light. The glass-glass, frameless design provides exceptional durability and resistance to extreme weather conditions: strong freezing temperatures, high temperatures, strong winds, and environments with high air salinity. The modules are 100% fire-resistant (Class A) and fully recyclable. The Blackstar series is suitable for a wide range of applications, including pitched and flat roofs, building facades, carports, and ground-mounted installations. The Cradle to Cradle Silver certification confirms compliance with circular economy principles, setting this series apart from most Asian competitors. The manufacturer offers a 30-year product warranty and guarantees 90% power retention after three decades of operation - thanks to an exceptionally low annual degradation rate of 0.31%. The European origin of the panels ensures high quality consistency and a reliable supply chain. This is a solution for investors who prioritize long-term efficiency and a secure return on investment.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.77% 22.52% Typical 3,073
Power density 227.7 225.2 Typical 2,888
Temperature coefficient -0.300 -0.290 Weak · bottom 20% 6,093
Weight per kWp 56.0 52.2 Weak · bottom 9% 10,354
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

Residential, commercial, shaded-installations, BIPV and hot-climate.

Not ideal for

Weight-limited structures and hot climates.

Watch-outs
56.0 kg per kWp

Bottom 9% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 10,354th in the whole database.

-0.300 %/°C temperature coefficient

Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290.

Notes from the database
  • Efficiency of 22.8% matches the TOPCon 450-500W median
  • At 227.7 W/m² power density, roof space requirements are typical for TOPCon 450-500W panels
  • Temperature coefficient of -0.30%/°C matches the TOPCon 450-500W median
  • At 25.5 kg (1.5 kg above TOPCon 450-500W median of 24.0 kg), requires checking roof load capacity
  • Ranked #3073 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 455 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.77 % Typical Segment median 22.52%
Vmpp · Impp 29.71 V · 15.31 A Operating point at max power
Voc · Isc 34.82 V · 15.97 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 25.5 kg Weak Weak · 1.5 kg above median
Cells 96 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 20% 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 410 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 Blackstar 455 455 W 22.77% -0.300 25.5 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +40 W, lighter, +2.0 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +50 W, cooler, +1.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +1.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +45 W, cooler, +1.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +45 W, lighter, +1.7 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +45 W, lighter, +1.7 pp
SOLID Agro Framed 300 300 W 15.01% -0.300 35.0 kg -155 W, heavier, -7.8 pp
SOLID Agro Frameless 300 300 W 14.88% -0.300 33.0 kg -155 W, heavier, -7.9 pp
SOLID Satin 445W 445 W 22.07% -0.300 33.0 kg -10 W, heavier, -0.7 pp
Blackstar Satin 445 445 W 22.27% -0.300 25.5 kg -10 W, -0.5 pp
SOLID Black Frameless 455 455 W 22.57% -0.300 33.0 kg Heavier
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +55 W, cooler, +2.2 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Do the SoliTek Blackstar panels really generate power from both sides, and what does that mean in practice?
Yes, the bifacial N-type TOPCon technology allows the Blackstar modules to absorb sunlight from both the front and rear surfaces. With a reflective substrate — white membrane, gravel, or concrete — energy yield can increase by up to 15–20% compared to a conventional monofacial module. The effect is most pronounced in ground-mounted systems and on flat roofs with a light-colored surface.
What is the warranty on SoliTek Blackstar panels, and what does the 90% power guarantee after 30 years mean?
SoliTek provides a 30-year product warranty and a 30-year power output warranty. The manufacturer guarantees that after three decades of operation the module will retain at least 90% of its rated power output, thanks to an exceptionally low annual degradation rate of 0.31%. For comparison, most conventional PERC panels degrade at 0.5–0.7% per year.
Are Blackstar panels suitable for pitched roofs, and can they be used on building facades?
Yes, the Blackstar series is designed for pitched roofs, flat roofs, and BIPV facade applications. The frameless glass-glass construction gives the modules a clean architectural appearance, making them ideal for modern building integration. The panels withstand mechanical loads up to 8,100 Pa, ensuring resistance to high winds and heavy snow. They also perform well in carports and ground-mounted installations.
How does the frameless glass-glass construction of the Blackstar panels differ from standard aluminum-framed modules?
Standard modules use a polymer backsheet and an aluminum frame. The Blackstar uses dual tempered glass with no frame, which is more resistant to moisture, frost, UV degradation, and corrosion in salt-laden environments such as coastal locations. This construction also delivers fire class A rating, critical for installations on commercial building facades and rooftops. The modules are also 100% recyclable.
What is N-type TOPCon technology, and how does it differ from popular PERC panels?
TOPCon (Tunnel Oxide Passivated Contact) is a next-generation N-type cell technology. Compared to mainstream PERC, it delivers higher efficiency — above 22% — a lower light-induced degradation (LID) rate, and better performance at elevated cell temperatures. N-type cells are less susceptible to internal degradation, which directly translates into higher energy output throughout the 30-year lifespan of the 455 Wp Blackstar module.
Why choose Lithuanian SoliTek Blackstar panels over cheaper Asian alternatives?
European manufacturing (Lithuania) means higher quality control standards, a stable supply chain, and legal accountability under EU regulations. The Blackstar series holds Cradle to Cradle Silver certification, confirming compliance with circular economy principles — a distinction absent from the vast majority of Asian manufacturers. Over a 30-year warranty horizon, the financial stability and reputation of the manufacturer are critical for investment security.
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