Space saver, no clear weak spot
The Renesola RS41-430~450NBG-E3 series is designed to maximize energy yield on a limited roof area - without the need to over-engineer the structure. The use of modern monocrystalline cells in the TOPCon technology, as well as the bifacial design, allows for the effective utilization of reflected light, which can be crucial on bright roofs, on membrane-supported racking systems, or in ground-mounted installations with well-suited foundations.
The half-cut design and multi-point current connection type MBB are also noteworthy, as they minimize losses and improve module performance under partial shading - for example, from chimneys, trees, or balustrade elements. In practice, this means more stable production under variable conditions and better predictability of self-consumption.
This is a good choice for installers and investors who expect long-term performance guarantees, while also wanting to differentiate their offer with a module of a newer generation, which is competitive with traditional PERC panels.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Top 2% of the N-type 400-450 W segment, against a median of 218.3. Ranked 2,790th in the whole database.
Top 3% of the N-type 400-450 W segment, against a median of 21.91%. Ranked 3,005th in the whole database.
N-type TOPCon cell technology combined with bifacial construction delivers 22.02-23.04% efficiency and a -0.29%/°C temperature coefficient, meaning lower power losses on hot days compared to classic PERC modules. The bifacial design also captures reflected light from the ground surface, boosting yield on bright roofs and ground-mount installations.
The manufacturer guarantees retention of at least 87.4% of nominal power after 30 years of operation, a notably longer and stronger warranty than the standard 25-year warranty with degradation to ~84.8% commonly offered on PERC panels.
Half-cut cells combined with multi-busbar (MBB) interconnection reduce resistive losses and improve module performance under partial shading, such as from chimneys or railing elements, resulting in more stable output under variable conditions.
The maximum efficiency of 23.04% matches competing series SunKean SKT430~450M10-108D5 and Sunket SKT430~450M10-108D5, and exceeds Sunova's Tangra S Pro HD (22.5%), confirming technological competitiveness against direct peer comparables.
The 430-450 Wp power range in a standard-format footprint maximizes energy yield without requiring oversized roof structures, which is important for installations with constrained mounting area.
Per BloombergNEF's Q3 2026 update, ReneSola dropped off the Tier 1 list - failing to meet one or more of BNEF's financial or documentary criteria - despite having held Tier 1 status for 11 consecutive quarters prior. This may affect bankability for projects requiring Tier 1 status at the time of financing.
The 15-year product warranty is solid but falls short of the 25-year product warranties increasingly offered by manufacturers of newer-generation panels (e.g., some competing TOPCon/HJT series), which could be a bargaining point for investors comparing total service-risk cost.
- Efficiency of 22.8% is 0.9pp above the N-type 400-450W median (21.9%)
- 227.9 W/m² power density - 9.6 W/m² more than N-type 400-450W median (218.3 W/m²), more power per roof area
- Temperature coefficient of -0.29%/°C matches the N-type 400-450W median
- At 24.5 kg, this panel is 2.5 kg heavier than the N-type 400-450W median (22.0 kg) - more demanding for installation crews
- Ranked #3005 out of 14005 panels for efficiency in the database
Specifications
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 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here