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Risen Brand review

RSM108-10-435BNDG

435 Wp TOPCon Bifacial
ComparePV verdict

Middle of its segment, heavy for its output

Rank 10,191 of 14,129
Compare panels Datasheet PDF
Power (Wp)
435
Typical for its class
Efficiency (%)
21.30
Weak · bottom 13%
Density (Wp/m²)
213.1
Weak · bottom 15%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
25.0
Weak · 3.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Risen RSM108-10-435-460BNDG series are modules engineered for exceptional operational stability in real-world installation conditions - even in locations where the roof or terrain isn't perfectly sun-exposed throughout the day. The implementation of N-type TOPCon cells helps mitigate typical energy losses during operation while simultaneously enhancing predictability of energy yields over a longer horizon.

What distinguishes this series from many standard panels is its bifacial and dual glass construction. In practice, this means the ability to "adjust" energy harvesting from reflected light (e.g., off a light roof surface, gravel, or paved areas) along with increased resilience to environmental factors. This makes it an excellent choice where longevity is key - suitable for high-demand rooftops, carports, commercial installations, and agricultural photovoltaics.

Another advantage is the black frame or full-black option, enabling seamless integration with modern architecture without compromising on quality.

Ranking

1,220 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 22.00% Weak · bottom 13% 8,585
Power density 213.1 220.2 Weak · bottom 15% 8,538
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 57.5 51.5 Weak · bottom 11% 11,316
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 4 caution
Best for

Residential, commercial and agrivoltaic.

Not ideal for

Weight-limited structures, tight roof space and roofs where every square metre has to count.

Watch-outs
57.5 kg per kWp

Bottom 11% of the TOPCon 400-450 W segment, against a median of 51.5.

21.30% module efficiency

Bottom 13% of the TOPCon 400-450 W segment, against a median of 22.00%.

213.1 watts per square metre

Bottom 15% of the TOPCon 400-450 W segment, against a median of 220.2.

What owners get
N-type TOPCon cells

N-type TOPCon technology reduces LID/LeTID degradation and performs better at high temperatures than legacy PERC cells; with a Pmax temperature coefficient of approx. -0.29%/°C, this translates into higher real-world yield in warm climates.

Bifacial dual-glass construction

The dual-glass bifacial design captures additional energy from reflected light (light-colored roofs, gravel, carport and agri-PV installations) while improving mechanical and environmental durability compared to standard glass-backsheet modules.

30-year linear power warranty

Risen guarantees a minimum of 87.4% power output after 30 years, backed by a 15-year product warranty - a standard typical of Risen's TOPCon dual-glass lineup, giving investors long-term yield predictability comparable to offerings like Axitec's AXIbiperfect.

Tier-1 bankable manufacturer since 1986

Risen is a Tier-1 bankable manufacturer with a long track record (founded in 1986), easing project financing and lowering investor risk compared to less established TOPCon-segment brands.

Black frame / full black option

A black frame or full-black variant allows the installation to better match building architecture without compromising electrical performance - relevant for residential projects with higher aesthetic requirements.

Trade-offs
Lower efficiency than segment leaders

The series tops out at 22.5% efficiency, while comparable peer modules (Phono Solar Draco, SunKean SKT440-460M12) reach 23.02% at the same 460 Wp maximum power - a roughly 0.5 pp gap that can mean lower yield per unit of roof area in space-constrained installations.

Notes from the database
  • Efficiency of 21.3% is 0.7pp below the TOPCon 400-450W median (22.0%)
  • 213.1 W/m² power density is 7.1 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
  • At -0.29%/°C, hot weather performance is typical for TOPCon 400-450W panels
  • At 25.0 kg, this panel is 3.0 kg heavier than the TOPCon 400-450W median (22.0 kg) - more demanding for installation crews
  • Ranked #8585 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 435 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Weak Segment median 22.00%
Vmpp · Impp 32.45 V · 13.41 A Operating point at max power
Voc · Isc 39.31 V · 14.04 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1800×1134×30 mm · 2.04 m² of roof
Weight 25.0 kg Weak Weak · 3.0 kg above median
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 380 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Risen in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 Wp appear here. The rest cover the whole series.

Industry-Leading Linear Power Warranty Industry-Leading Linear Power Warranty Whole series I-V Curves at Different Cell Temperatures (AM1.5, 1000 W/m²) I-V Curves at Different Cell Temperatures (AM1.5, 1000 W/m²) Whole series

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
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Risen RSM108-10-435BNDG 435 W 21.30% -0.290 25.0 kg You are here
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +50 W, lighter, +3.0 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +50 W, lighter, +3.0 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +50 W, lighter, +3.0 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +50 W, lighter, +3.0 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +50 W, cooler, +3.0 pp
RSM108-10-440BNDG 440 W 21.60% -0.290 25.0 kg +0.3 pp
RSM108-10-445BNDG 445 W 21.80% -0.290 25.0 kg +10 W, +0.5 pp
RSM108-10-450BNDG 450 W 22.10% -0.290 25.0 kg +15 W, +0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +75 W, cooler, +3.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +60 W, lighter, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +70 W, cooler, +3.4 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +70 W, cooler, +3.4 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +55 W, lighter, +3.2 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +65 W, cooler, +3.2 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +65 W, lighter, +3.2 pp

Found 213 panels of the same or similar size to this one, within ±10 mm. See them here Found 217 panels of the same or similar size to this one, within ±25 mm. See them here Found 1735 panels of the same or similar size to this one, within ±50 mm. See them here Found 4051 panels of the same or similar size to this one, within ±100 mm. See them here

About the RSM108-10-435-460BNDG series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What product and power warranties does the Risen RSM108-10-435-460BNDG series carry?
Risen provides a 15-year product warranty covering materials and workmanship, along with a 30-year linear power warranty. After 30 years, modules are guaranteed to retain at least 87.4% of their rated power output, with an annual degradation rate of only 0.4%. These terms rank among the most competitive for this panel class, backed by Risen Energy's Tier 1 manufacturer status.
What is TOPCon technology and what does it mean for real-world performance of the Risen RSM108-10-435-460BNDG?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell architecture that offers higher efficiency and lower lifetime degradation than conventional PERC. The key practical advantage is its temperature coefficient of -0.29%/°C, meaning the module loses less power on hot days and harvests diffuse irradiance more effectively than PERC on overcast days.
How does the bifacial dual glass design of the Risen RSM108-10-435-460BNDG work, and when does it pay off most?
The bifacial design allows the module to capture reflected light from the rear side off high-albedo surfaces such as white gravel, light roofing membranes, or snow. Dual glass replaces the standard polymer backsheet with a second glass layer, significantly improving moisture resistance and mechanical durability. The highest energy gain is realized in solar carports, agrivoltaic systems, and ground-mount installations with a reflective surface below.
Are the Risen RSM108-10-435-460BNDG panels suitable for a pitched residential rooftop installation?
Yes, the RSM108-10-435-460BNDG series is compatible with standard pitched-roof mounting systems. At 1800×1134×30 mm and approximately 25 kg per module, they fit typical residential racking. The black frame or full black option integrates well with modern architecture. Because dual glass modules are slightly heavier than single-glass equivalents, verifying roof load capacity beforehand is recommended.
Is the Risen RSM108-10-435-460BNDG a good fit for commercial or agrivoltaic installations?
Yes, this is one of the series' strongest use cases. The dual glass construction delivers superior resistance to moisture ingress and corrosion critical for long-term commercial deployments. The bifacial design boosts energy yield in agrivoltaic setups where the ground provides a high-albedo surface. Risen Energy's Tier 1 status also ensures strong bankability for project financing.
How do the Risen RSM108-10-435-460BNDG panels perform in winter and low-light conditions?
The N-type TOPCon cells' low temperature coefficient of -0.29%/°C means the module can briefly exceed its STC-rated power on cold winter days and loses less power during summer heat compared to older PERC technology. Under diffuse irradiance, TOPCon outperforms PERC in energy harvest. The bifacial gain is minimal under heavy cloud cover, but the cell technology itself ensures competitive annual yield.
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