Light for its output, no clear weak spot
The Horay Solar HS 186R-144 TC Alpine panel series redefines performance standards through the use of advanced N-type TOPCon cells. The use of rectangular silicon wafers in the 186R format allows for optimal utilization of the module surface area, which translates into significantly higher power density compared to traditional solutions. The Bifacial Double Glass construction ensures not only additional energy yield from reflected radiation but also exceptional resistance to extreme mechanical loads, which is crucial in the variable Polish climate. Alpine series modules effectively solve the problem of light-induced degradation, offering stable operation and minimized degradation of power over the long term. Thanks to an excellent temperature coefficient, these panels maintain high efficiency even during summer heat, making them an ideal choice for large-scale solar farms and modern commercial installations. What sets this series apart from the competition is SMBB technology, which improves current flow and increases the cells' resistance to micro-cracks. Investing in the Alpine line is a guarantee of maximizing yields while lowering the total cost of energy production, placing these modules at the forefront of the most cost-effective solutions on today's PV market.
Ranking
Signals from the data
Utility-scale, commercial, cold-climate and hot-climate.
Top 2% of the N-type 600-650 W segment, against a median of 52.8. Ranked 490th in the whole database.
Top 15% of the N-type 600-650 W segment, against a median of -0.290.
The Alpine series delivers 22.3-23.1% efficiency, outperforming comparable-wattage peers by 0.7-1.55 percentage points (GCL-M12/60GDF: 21.6%, Techwise Summit: 21.55%, Seraphim Seco: 21.55%). For a typical 100 kWp system, this translates to roughly 700-1,550 Wp of additional installed power on the same roof or ground footprint.
N-type TOPCon cells exhibit significantly lower light-induced degradation (LID < 0.5% vs ~1.5% for PERC) and a better temperature coefficient (typically -0.30%/°C vs -0.35%/°C for PERC), meaningfully increasing annual energy yield in the Polish climate where modules routinely reach 60-75°C in summer. The rectangular 186R wafer format increases cell packing density versus standard 182M wafers.
Super Multi Busbar (SMBB) shortens current pathways and reduces resistive losses. Its key operational benefit is high resistance to microcracking (PID), which in practice means lower post-transport and post-installation power loss - a material advantage for utility-scale projects where modules undergo repeated mechanical stress during handling and racking.
Horay Solar is listed on the BNEF Tier 1 Module Manufacturer report for Q1 2026 (ranked 37th, 2,500 MW manufacturing capacity). Tier 1 status is the standard prerequisite for project finance transactions at banks and infrastructure funds, allowing these modules to be used in PPA-backed deals without additional technical due diligence conditions.
The manufacturer guarantees a linear power degradation schedule over 30 years - aligned with the longest PPA terms used in Poland's renewable energy sector. Comparable-wattage peers such as GCL and Seraphim offer 25-year power warranties as standard, giving the Alpine series a favorable edge in NPV models for utility-scale PV projects.
The standard product warranty is 12 years, while leading N-type TOPCon manufacturers in the same power class (JA Solar DeepBlue 4.0 Pro, Jinko Tiger Neo, LONGi Hi-MO 9, Canadian Solar TOPHiKu7) offer 15-year module warranties. For utility-scale installations this creates elevated replacement cost risk in the 12-15-year window, which is typically not covered by project insurance policies.
With 2,500 MW of manufacturing capacity and a BNEF rank of 37, Horay Solar operates at roughly 1/10th the scale of LONGi or Jinko Solar. The absence of a documented authorized service network in Poland can extend warranty claim resolution times, which is a material concern for O&M contracts that include availability guarantees.
- At 22.9% efficiency, this panel is on par with typical N-type 600-650W modules
- At 228.7 W/m² power density, roof space requirements are typical for N-type 600-650W panels
- At -0.28%/°C, hot weather performance is typical for N-type 600-650W panels
- 27.0 kg weight - 5.8 kg lighter than N-type 600-650W median (32.8 kg), reducing installation effort
- #2412 for efficiency, #1347 for temperature performance out of 14129 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 605 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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About the HS 186R-144 TC Alpine series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.