Strong in heat, no clear weak spot
The Jolywood JW-HD108N-R3 Black Series is designed for high energy output and a consistent, modern appearance. The use of N-type TOPCon monocrystalline cells translates to more stable performance over time and reduced susceptibility to typical efficiency losses, which investors planning long-term operation will appreciate. The bifacial design allows capturing additional energy from the rear side as well - particularly where the surface reflects light (bright roof, gravel, snow) or during vertical installation.
A clear distinguishing feature is the glass-glass construction, which enhances resistance to moisture, temperature fluctuations, and mechanical stress, ensuring the panels perform well in challenging environmental conditions. The series also features the "full black" aesthetic, making it a popular choice for residential rooftops, but it is also suitable for commercial installations, carports, and projects requiring durability and reliable returns. In practice, its unique combination of TOPCon technology, bifacial design, and glass-glass construction offers an option focused on both appearance and longevity.
Ranking
Signals from the data
Residential and commercial.
Top 11% of the TOPCon 450-500 W segment, against a median of -0.290.
Top 20% of the TOPCon 450-500 W segment, against a median of 225.2.
Top 22% of the TOPCon 450-500 W segment, against a median of 22.52%.
N-type cells eliminate LID (Light-Induced Degradation), and the linear power degradation rate is only 0.40%/year. After 30 years, the module retains ≥87.4% of rated power — a clear advantage over PERC technology, where annual degradation reaches 0.55%/year and typical retention after 25 years is around 84.8%.
The Pmax temperature coefficient of –0.30%/°C outperforms standard PERC modules (–0.35 to –0.40%/°C). In climates where module temperatures regularly exceed 55–65°C during summer, this difference translates to measurably higher seasonal energy yield.
An 80% bifaciality factor (±5%) enables 10–25% additional rear-side energy harvest depending on ground albedo. The glass-glass encapsulation delivers superior mechanical strength, PID resistance, and UV durability, with compliance confirmed by IEC 61215:2021 and IEC 61730:2016 certifications.
The 460W variants reach 23% module efficiency, matching direct peers Risen RSM96-11-440-460BNDG (23%) and SunKean SKT440~460M12-96D4 (23.02%), while significantly outperforming Zonergy ZPM MH3-72 (21.16%). High efficiency reduces the roof area required for a given system output.
Jolywood appears on the BNEF Tier-1 list (Q2 2026), confirming bankability for commercially financed projects. Founded in 2008, with annual production capacity of approximately 10 GW, the manufacturer offers a sound counterparty risk profile for both residential and commercial installations backed by project finance.
The materials and workmanship warranty is 12 years, whereas Jolywood's own updated datasheet (version V202502) already lists 25 years. If the supplied series is sourced from an older contract batch (12-year terms), it falls short of the market's leading offers — e.g., SunPower and select JA Solar lines provide 25-year workmanship coverage. Buyers should verify the warranty document at point of purchase.
- Efficiency of 23.0% matches the TOPCon 450-500W median
- 230.2 W/m² power density - 5.0 W/m² more than TOPCon 450-500W median (225.2 W/m²), more power per roof area
- Temperature coefficient of -0.28%/°C matches the TOPCon 450-500W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- In the top 14% for efficiency among all TOPCon panels
Specifications
Datasheet charts
Measured curves published by Jolywood in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 460 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 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here