Middle of its segment, needs the roof space
The HNM7-SHDB144 series from Hounen Solar is engineered for installations where maximizing energy yield per square meter of roof or ground space really matters. The panel is built around 144 monocrystalline half-cut cells, which reduce resistive losses and improve tolerance to partial shading - a common challenge in urban and industrial installations. The integrated bifacial technology allows the module to capture light reflected off the ground as well, boosting energy production by double digit percentages without any extra installation cost. Thanks to PERC technology, the module absorbs sunlight more effectively, with an additional reflective layer improving efficiency even at unfavorable angles of incidence. The series also stands out for its stable anti-PID protection, translating into a longer lifespan and predictable power degradation over time. Its construction, featuring tempered AR coated glass and a sealed IP68 junction box, allows the module to withstand harsh weather conditions such as wind, snow, and humidity. Thanks to its strong low-light performance, the panel also performs well in regions with less sunshine, such as Poland, where the number of overcast days is a key factor in module selection. The HNM7-SHDB144 is a solid choice for installers and investors seeking a balance between performance, durability, and long-term return on investment.
Ranking
Signals from the data
Utility-scale, commercial and shaded-installations.
Roofs where every square metre has to count, owners who want a long output guarantee and tight roof space.
Bottom 11% of the 435-635 W band, against a median of 222.6.
Bottom 11% of the 435-635 W band, against a median of 30 yrs.
Bottom 11% of the 435-635 W band, against a median of 22.26%.
The bifacial technology enables additional rear-side energy gain of up to 25%, per manufacturer data, translating into real production gains at no extra installation cost, especially over reflective surfaces (gravel, white roofing).
Power up to 560 Wp and efficiency up to 21.68% put the series on par with Exiom EX540-560M(B), Fellow Energy FE72-18X (both 560 Wp/21.7%), and Premier Energies (560 Wp/21.67%) - HNM7-SHDB144 keeps pace with the leading edge of 144-cell half-cut modules.
144 half-cut monocrystalline cells lower resistive losses and improve partial-shading tolerance - a meaningful advantage for installations affected by chimneys, parapets, or trees casting shadows in urban settings.
3.2mm AR-coated tempered glass plus an IP68 junction box with 3 diodes provide solid protection against moisture, wind, and snow load, supporting reliable operation in tougher climates.
Hounen Solar (founded in 2010) reports shipping over 320 GW of modules globally by the end of 2025, indicating operational scale and potentially more stable supply chains than smaller, niche manufacturers.
The series relies on older PERC cell technology, while since 2024-2025 leading manufacturers (Trina, JA Solar, LONGi, among others) have shifted to N-type TOPCon cells with lower LID degradation and better high-temperature performance - PERC offers less long-term upgrade headroom.
The 12-year product warranty and 25-year linear power warranty reflect an older PERC-generation standard, whereas by 2026 many TOPCon module manufacturers already offer 15-year product and 30-year power warranties.
Publicly available BNEF Tier 1 lists (Q4 2025/Q1 2026) do not clearly confirm Hounen Solar's Tier 1 status, which can matter for bank financing on larger commercial projects requiring supplier bankability.
- Module efficiency of 20.7% is 1.1pp below average for database panels (median: 21.8%)
- 207.1 W/m² power density is 11.0 W/m² below database median (218.1 W/m²) - requires larger installation area
- Temperature coefficient of -0.35%/°C is 0.05pp worse than database median (-0.30%/°C) - higher losses in summer heat
- At 28.0 kg (1.5 kg above database median of 26.5 kg), requires checking roof load capacity
- Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof
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.
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