Middle of its segment, heavy for its output
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
Signals from the data
Residential, commercial and agrivoltaic.
Weight-limited structures.
Bottom 15% of the TOPCon 400-450 W segment, against a median of 51.5.
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.
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.
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.
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.
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.
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.
- At 21.6% efficiency, this panel is on par with typical TOPCon 400-450W modules
- 215.6 W/m² power density is 4.6 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
- Temperature coefficient of -0.29%/°C matches the TOPCon 400-450W median
- Weight of 25.0 kg is 3.0 kg above TOPCon 400-450W median (22.0 kg) - verify structural support
- #7716 for efficiency, #2220 for temperature performance out of 14129 panels
Specifications
Datasheet charts
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 440 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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
These answers cover the whole series. Where a figure differs, the specification above is this module's own.