Light for its output, no clear weak spot
Horay Solar HS 186R-120 TC Alpine modules utilize an innovative architecture based on N-type rectangular cells, allowing for denser silicon packing and higher conversion efficiency. Thanks to the use of N-Type TOPCon technology, these panels exhibit near-zero initial LID degradation and significantly better performance parameters at high temperatures compared to classic p-type solutions. This is crucial for investors who expect maximum performance from every square meter of the installation for decades. This series stands out with its Double Glass construction, which provides extreme resistance to mechanical loads and moisture, eliminating the risk of micro-cracks. This solves the problem of component durability in demanding climates, offering users peace of mind and investment security. The use of rectangular cell technology optimizes voltage parameters, allowing for the design of longer module strings, thereby reducing wiring and hardware costs. This is a solution dedicated to modern single-family homes and demanding business installations, where the priority is the highest energy yield and an aesthetic, modern design. Alpine is synonymous with energy stability, outclassing the competition in terms of resistance to material aging and efficiency in diffused light.
Ranking
Signals from the data
Weight-limited structures and hot roofs and southern climates.
Top 2% of the N-type 450-500 W segment, against a median of 49.5. Ranked 298th in the whole database.
Top 21% of the N-type 450-500 W segment, against a median of -0.290.
Peak efficiency of 23.1% places the Alpine series on par with JA Solar JAM60S40 LR (23.0%) and Sunlike SKT510 (22.93%), while clearly outperforming Trina Solar Vertex Backsheet (21.2%). For rooftop installations with limited usable area, this directly translates into higher energy yield per m².
N-type TOPCon cells exhibit near-zero LID initial degradation and an annual power loss of ~0.4% versus ~0.7–0.8% typical of P-type PERC modules. A temperature coefficient of approximately –0.30%/°C (class-typical) delivers measurably higher output on hot days compared to P-type panels with Tc ≈ –0.35%/°C.
The dual-glass laminate eliminates micro-crack risk and provides IP68-class moisture resistance, critical in climates with frequent freeze-thaw cycles. Front and rear glass distribute mechanical loads evenly, supporting module lifespan well beyond the 30-year power warranty period.
The manufacturer guarantees a linear power degradation schedule for 30 years, exceeding the 25-year standard offered by Trina Solar Vertex Backsheet. For residential and commercial investors, this reduces financial risk and improves the LCOE profile over the full asset lifetime.
The rectangular cell architecture enables longer DC strings per MPPT channel, reducing cabling and DC balance-of-system (BoS) material costs. This advantage is particularly significant in commercial flat-roof installations where string length directly determines hardware savings.
Leading Tier-1 manufacturers — JA Solar, Trina Solar, LONGi — standardly offer a 15-year product warranty covering material and workmanship defects. Alpine's 12-year coverage falls 3 years short of that benchmark, leaving a gap during the critical mid-life window when potential replacement costs have not yet been fully offset by cumulative energy yield.
The Alpine series is monofacial (is_bifacial: false), while N-type TOPCon at this power class is increasingly available in bifacial versions (e.g., JA Solar JAM60D40 with ~80% bifaciality) capable of harvesting 5–15% additional energy from ground-reflected irradiance. On light-colored rooftops or ground-mount systems, the absence of an active rear surface represents a measurable loss of potential annual yield.
- At 22.4% efficiency, this panel is on par with typical N-type 450-500W modules
- At 223.3 W/m² power density, roof space requirements are typical for N-type 450-500W panels
- At -0.28%/°C, hot weather performance is typical for N-type 450-500W panels
- At 21.5 kg, this panel is 2.2 kg lighter than N-type 450-500W median (23.7 kg) - easier handling during installation
- #4774 for efficiency, #1309 for temperature performance out of 14005 panels
Specifications
Datasheet charts
Measured curves published by Horay Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 495 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Alternatives
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