--- title: "Renesola RS41-450NBG-E3 450W Solar Panel - Specs & Review | ComparePV" description: "Renesola RS41-450NBG-E3 450W solar panel. Specs: 23.04% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/renesola-rs41-450nbg-e3" updated: 2026-09-11 --- # Renesola RS41-450NBG-E3 Efficiency leader, heavy for its output 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Renesola - **Model:** RS41-450NBG-E3 - **Series:** RS41-430~450NBG-E3 - **Rated power:** 450 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (301 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 470 W | Weak - bottom 8% | | | Module efficiency | 23.04% | 22.52% | Strong - top 20% | 1,711 | | Power density | 230.4 | 225.2 | Strong - top 21% | 1,708 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.5 kg | 23.7 kg | Weak - bottom 21% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.04% | 22.52% | Strong - top 20% | 1,711 | | Power density | 230.4 | 225.2 | Strong - top 21% | 1,708 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 54.4 | 49.5 | Weak - bottom 21% | 8,755 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.04% module efficiency** - Top 20% of the N-type 450-500 W segment, against a median of 22.52%. - **230.4 watts per square metre** - Top 21% of the N-type 450-500 W segment, against a median of 225.2. ### Watch out for - **54.4 kg per kWp** - Bottom 21% of the N-type 450-500 W segment, against a median of 49.5. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 23.04 % - **Voltage at Pmax (Vmp):** 33.46 V - **Current at Pmax (Imp):** 13.45 A - **Open-circuit voltage (Voc):** 40.40 V - **Short-circuit current (Isc):** 14.01 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 1.95 m2 - **Power density:** 230.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1711 of 14005 | | Power density | 1708 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 8755 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon + bifacial cells** - 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. - **30-year power warranty at 87.4%** - 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 cell layout with MBB technology** - 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. - **Efficiency on par with segment leaders** - 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. - **High power density for limited roof space** - 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. ## Cons - **Uncertain BNEF Tier 1 status in 2026** - 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. - **15-year product warranty trails newer market standards** - 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. ## About this series 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. ## Notable figures - 23.0% module efficiency - 0.5pp better than the \*\*N-type 450-500W\*\* median of 22.5% - 230.4 W/m² power density - 5.2 W/m² more than \*\*N-type 450-500W\*\* median (225.2 W/m²), more power per roof area - Temperature coefficient of -0.29%/°C matches the \*\*N-type 450-500W\*\* median - #1711 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What warranty does the Renesola RS41-430~450NBG-E3 series come with? The RS41-430~450NBG-E3 series includes a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty guaranteeing at least 87.4% of rated power at end of life. This is among the longer warranty commitments in the mid-range module segment and plays a key role in LCOE calculations over the full system lifetime. ### What advantages does N-type TOPCon technology in the RS41-430~450NBG-E3 offer over standard PERC panels? N-type TOPCon cells deliver a lower annual degradation rate and near-zero LID (Light Induced Degradation) compared to conventional PERC technology. This translates to module efficiency reaching up to 23% and more consistent energy yield across the 30-year warranty period. For the same roof area, you can expect meaningfully more kilowatt-hours annually than from a similarly priced PERC module. ### Do Renesola RS41-450NBG-E3 bifacial panels make sense on a typical pitched roof? Bifacial gain is most significant with high-albedo surfaces such as white TPO membranes, light gravel ballast, or pale ground cover. On standard clay or concrete roof tiles, the reflected-light gain is typically 3-8%, which still adds up meaningfully at 450 Wp. Ground-mount installations or flat roofs with white ballast membranes unlock the full bifacial potential of this module. ### How do half-cut cells and MBB design improve the RS41-430~450NBG-E3 performance under partial shading? The half-cut cell layout splits each cell into two independent halves, so shading from chimneys, dormers, or railings only blocks a fraction of the string rather than the entire row. Multi Busbar (MBB) interconnection shortens current paths, reducing resistive losses. Together, these features produce steadier output in variable irradiance conditions and improve self-consumption predictability in residential prosumer systems. ### What is the efficiency of the Renesola RS41-450NBG-E3 and why does it matter for a small roof? The RS41-450NBG-E3 reaches up to 23.04% module efficiency at 450 Wp. With dimensions of 1722×1134×30 mm, each panel covers under 2 m², meaning you can fit roughly 2.25 kWp within 10 m² of active roof area. Compared to a similar-footprint 400 Wp PERC module, you gain significantly more power capacity without enlarging the mounting structure. ### Is the Renesola RS41-430~450NBG-E3 series still available for purchase? Yes, the RS41-430~450NBG-E3 series is an active product available through European distributors. Renesola holds Tier 1 status with leading PV bankability assessment agencies, indicating solid financial backing and supply chain continuity relevant to honoring the full 30-year performance warranty. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/rs41-430-450nbg-n-type-182-108-bifacial-module-with-dual-gla-cec231d943ce.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, lighter, +1.8 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +1.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, lighter, +1.5 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, lighter, +1.5 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +1.5 pp | | [Renesola RS41-430NBG-E3](https://comparepv.com/panel/renesola-rs41-430nbg-e3) | 430 W | -20 W, -1.0 pp | | [Renesola RS41-435NBG-E3](https://comparepv.com/panel/renesola-rs41-435nbg-e3) | 435 W | -15 W, -0.8 pp | | [Renesola RS41-440NBG-E3](https://comparepv.com/panel/renesola-rs41-440nbg-e3) | 440 W | -10 W, -0.5 pp | | [Renesola RS41-445NBG-E3](https://comparepv.com/panel/renesola-rs41-445nbg-e3) | 445 W | -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/renesola-rs41-450nbg-e3 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.