Middle of its segment, heavy for its output
The Renesola RS4-470~490NXG-E1 series is designed for installations where long-term stable energy production and real returns in limited spaces are crucial. These are bifacial modules that can utilize light from both sides - this makes it easier to increase power generation on bright roofs, carports, or ground-mounted structures with appropriate backing. The use of N-type TOPCon cells helps to minimize losses and maintain high efficiency over time, which is particularly important for projects focused on long-term returns.
The dual glass variant increases resistance to environmental conditions and makes it easier to maintain performance in demanding locations. In addition, the half-cut technology and multi-wire connection (MBB) of cells support better performance under partial shading and reduce the risk of micro-cracks.
This is a good choice for businesses and homeowners who want to maximize self-consumption or power generation per square meter, while also expecting a long-term power warranty and predictable operation.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Weight-limited structures, roofs where every square metre has to count and tight roof space.
Bottom 3% of the N-type 450-500 W segment, against a median of 49.5. Ranked 11,960th in the whole database.
Bottom 17% of the N-type 450-500 W segment, against a median of 225.2.
Bottom 18% of the N-type 450-500 W segment, against a median of 22.52%.
N-type TOPCon cells reduce LID/LeTID degradation and offer a lower power temperature coefficient than older PERC technology, resulting in more stable annual yield, especially during hot summer periods.
The modules capture light reflected off the ground surface, boosting energy yield by up to several to low double-digit percent on bright rooftops, carports, or ground-mounted installations - without requiring additional surface area.
The linear power warranty covers 30 years, a premium parameter in this segment that exceeds the typical 25 years offered by many Tier-1 manufacturers, giving investors a longer predictable operating horizon.
The dual glass construction improves resistance to moisture and degradation in harsh environmental conditions, while half-cut technology combined with multi-busbar (MBB) cell interconnection reduces shading losses and lowers the risk of microcracks.
Renesola has been operating since 2005 and holds Tier-1 bankable status, easing project financing and reducing risk for investors relying on credible warranty support.
The RS4-470~490NXG-E1 series was discontinued in 2024, meaning limited availability for expanding existing installations and potentially harder access to warranty service in the future.
The maximum efficiency of 22.71% trails competing series such as Solar-Fabrik Mono S4 Halfcut BC and Heckert Solar ZEUS 3.0 Performance, which reach 24% at the same 490 Wp power class - largely due to the absence of back-contact technology.
- Module efficiency of 22.0% is 0.5pp below average for N-type 450-500W panels (median: 22.5%)
- Power density of 220.1 W/m² is 5.1 W/m² below N-type 450-500W median (225.2 W/m²) - needs more roof space
- At -0.29%/°C, hot weather performance is typical for N-type 450-500W panels
- At 28.0 kg (4.3 kg above N-type 450-500W median of 23.7 kg), requires checking roof load capacity
- 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Renesola 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 725 panels of the same or similar size to this one, within ±10 mm. See them here Found 751 panels of the same or similar size to this one, within ±25 mm. See them here Found 870 panels of the same or similar size to this one, within ±50 mm. See them here Found 1499 panels of the same or similar size to this one, within ±100 mm. See them here