Strong in heat, no clear weak spot
The Jolywood JW Pro Series JW-HD144N-R0 (570-595W) was designed to maximize energy yield in every square meter. This is a bifacial module with dual glass construction, enabling it to truly utilize reflected light and boost energy production without expanding the installation. The application of n-type TOPCon cells translates to more stable performance over time - lower degradation rates and better resilience in demanding conditions, such as high temperatures and low irradiance.
In practice, this series addresses typical investor concerns: rapid power degradation over the years, sensitivity to micro-cracks, and PID risk. Features like high anti-PID resistance and a refined half-cell design with multiple busbars help improve performance under partial shading. This is a targeted choice for commercial installations, PV farms, carports, and flat roofs, where durability and long-term yield outperform specifications listed in the catalog.
Ranking
Signals from the data
Commercial, utility-scale and shaded-installations.
Top 4% of the TOPCon 550-600 W segment, against a median of -0.290. Ranked 1,309th in the whole database.
The module delivers 22.1–23.0% efficiency, outperforming the direct peer Sunova TS-BW78 (21.3%) and matching top comparables Solarspace Lumina II and Ulica Solar TOPCon (both at 23.03%). This translates into higher energy yield per square meter of roof or ground area.
Temperature coefficient of −0.28%/°C and annual linear degradation ≤0.40% (1.00% year-one). For a 1 MWp commercial installation, this results in tens of MWh more cumulative output over 25 years compared to older PERC modules with typical 0.55%/year degradation.
The dual-glass bifacial construction captures albedo light reflected from the ground. Under typical ground-mount conditions (light-colored surface), rear-side gain adds 5–15% relative to the nameplate front-side output, increasing system yield without expanding the installation footprint.
Jolywood guarantees ≥99.0% power retention after year 1, ≥97.0% after year 5, and ≥87.4% after year 30 at 0.40%/year degradation — per the official Jolywood warranty document (jolywood.com). Many standard Tier-1 PERC competitors offer only a 25-year warranty with an 84.8% end-of-life floor.
Jolywood is listed on the BloombergNEF Tier 1 module manufacturers list (confirmed Q2 2026), enabling independent commercial bank financing of utility-scale projects. This reduces the cost of capital for PV farm developers and eliminates the risk of lender rejection based on manufacturer bankability.
The product workmanship warranty is 12 years, below the 15-year standard offered by leading Tier-1 manufacturers such as JA Solar, LONGi, and Trina Solar. For commercial investors with a 12–15 year payback horizon, this gap may affect risk assessments by insurers and project finance lenders.
- Efficiency of 22.3% matches the TOPCon 550-600W median
- Power density of 222.6 W/m² matches the TOPCon 550-600W median
- At -0.28%/°C, hot weather performance is typical for TOPCon 550-600W panels
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
- In the top 36% 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 575 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 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here