Middle of its segment, heavy for its output
The DESERV Extreme 120X series consists of RenewSys solar modules built on M10R TOPCon cells, combining high conversion efficiency with the structural durability of a glass-glass design. The use of half-cut cells arranged in a 120-cell configuration reduces power losses under partial shading and lowers stress-related microcracking, resulting in greater long-term reliability. The bifacial dual-glass construction captures reflected light from the ground surface, boosting energy yield without increasing the installation footprint - a particularly attractive feature for ground-mounted solar farms on reflective terrain and industrial rooftops with large flat surfaces. Replacing the traditional rear backsheet with a second glass layer significantly improves resistance to moisture ingress, microcracks, and PID degradation, extending the module's real-world lifespan and keeping power output stable for decades. Thanks to TOPCon technology, these modules achieve a lower temperature coefficient and reduced first-year degradation compared to conventional PERC panels, directly lowering the project's LCOE. The 120X M10R series is well suited for both commercial installations and demanding utility-scale projects, where predictable return on investment and resilience against harsh environmental conditions are key priorities.
Ranking
Signals from the data
Commercial, utility-scale and shaded-installations.
Weight-limited structures, tight roof space and roofs where every square metre has to count.
Bottom 9% of the TOPCon 450-500 W segment, against a median of 52.2. Ranked 10,244th in the whole database.
Bottom 14% of the TOPCon 450-500 W segment, against a median of 22.52%.
Bottom 14% of the TOPCon 450-500 W segment, against a median of 225.2.
M10R TOPCon cells deliver conversion efficiency up to 23.06%, placing the series above comparable models Silfab SIL HM (21%) and Lina Energy LEPV 132 HC ICON PLUS (21.06%) at the same 500 Wp maximum power rating.
RenewSys offers a 30-year linear power output warranty, a premium standard in the TOPCon segment that exceeds the typical 25-year linear warranties offered by many tier-1 manufacturers, reducing investor risk over the long-term operating horizon.
A dual-glass design in place of a traditional polymer backsheet significantly improves resistance to PID degradation, moisture ingress, and microcracks, while enabling additional energy yield from reflected albedo - particularly effective on bright ground surfaces at utility-scale farms and large industrial rooftops.
N-type TOPCon technology exhibits a lower LID coefficient and better performance at high temperatures than legacy PERC cells, translating into higher real-world annual energy yield and lower LCOE for the installation.
RenewSys (founded in 2011, headquartered in India) holds tier-1 bankable status, easing project financing for utility-scale installations where banks require a documented supply track record and financial references.
Maximum efficiency of 23.06% trails Gokin's GK-3-54HGF (24.5%) at the same 500 Wp maximum power rating - at comparable module area, the competitor delivers higher yield per unit of surface.
The standard product warranty is 12 years, while some premium TOPCon manufacturers now offer 15-25 year product warranties - this may matter when comparing total cost of ownership in utility-scale projects.
- At 21.9% efficiency, this panel is 0.6pp below the TOPCon 450-500W median of 22.5%
- Power density of 219.0 W/m² is 6.2 W/m² below TOPCon 450-500W median (225.2 W/m²) - needs more roof space
- Temperature coefficient of -0.29%/°C matches the TOPCon 450-500W median
- At 26.5 kg, this panel is 2.5 kg heavier than the TOPCon 450-500W median (24.0 kg) - more demanding for installation crews
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Renewsys in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 475 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Found 491 panels of the same or similar size to this one, within ±10 mm. See them here Found 767 panels of the same or similar size to this one, within ±25 mm. See them here Found 1282 panels of the same or similar size to this one, within ±50 mm. See them here Found 1474 panels of the same or similar size to this one, within ±100 mm. See them here
About the DESERV Extreme 120X (M10R TOPCon Bifacial Dual Glass) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.