Strong in heat, no clear weak spot
Horay Solar HS 186R-144 TC-D Alpine photovoltaic panels utilize N-type TOPCon cell technology, ensuring exceptional energy conversion efficiency even in low sunlight. The use of innovative, rectangular 186R cells allows for power density optimization, which directly translates into higher yields per square meter of the installation. This series stands out with its bifacial design, which, thanks to the glass coating on both sides of the module, enables the absorption of light reflected from the ground, significantly increasing total electricity production. It is an ideal solution for demanding commercial investments and solar farms, where resistance to extreme mechanical loads, such as heavy snow or strong wind, is of key importance. Thanks to a low temperature coefficient, Alpine panels operate stably even on hot days, minimizing energy losses. These modules solve the problem of rapid cell degradation by offering double glass-glass protection, which effectively protects the silicon from the effects of moisture and ammonia. By choosing this series, you are investing in technology that outperforms the competition in terms of durability and return on investment in harsh environmental conditions.
Ranking
Signals from the data
Commercial, utility-scale, cold-climate and hot-climate.
Top 9% of the N-type 550-600 W segment, against a median of -0.290. Ranked 1,347th in the whole database.
The Alpine series delivers 22.3-23.1% module efficiency, while direct comparables - GCL-M12/60GDF (21.6%), Techwise Summit and Seraphim Seco (both 21.55%) - remain below 22%. The gap translates into meaningfully higher energy yield per square meter, improving LCOE for area-constrained rooftop and C&I installations.
N-type TOPCon cells are virtually free from Light-Induced Degradation (LID), which affects all P-type PERC modules. Post-year-one annual degradation runs approximately 0.3-0.5% versus 0.5-0.7% typical for PERC. Over the 30-year power warranty horizon, the cumulative energy production advantage is material for utility-scale PV and large C&I projects.
The double-glass (glass-glass) construction serves a dual role: it captures reflected irradiance from the ground surface (bifacial gain typically 5-15% under ground-mount conditions at albedo 0.25) and eliminates moisture and ammonia ingress through the backsheet - the primary driver of module degradation in corrosive environments such as farms, wastewater facilities, and coastal sites.
Horay Solar offers a 30-year linear power output warranty and a 15-year product warranty, exceeding many peer comparables that operate on 25/12-year terms. The company appears on the BNEF Tier-1 PV Module Manufacturer list for Q1 2026, the bankability benchmark required by project finance institutions for utility-scale solar assets.
Alpine series modules carry current IEC61215:2021 (electrical and mechanical performance) and IEC61730:2023 (safety) certifications, satisfying grid interconnection and insurance requirements in Poland and across the EU. The 2023 edition of IEC61730 applies more stringent mechanical load test levels (typically 5400/2400 Pa for snow/wind), confirming structural robustness.
Horay Solar's annual module production capacity of approximately 2.5 GW is substantially smaller than that of Jinko Solar, LONGi, or JA Solar (each exceeding 60 GW). The company is still building its European footprint - its KEY ENERGY 2025 innovation award was part of a strategy to strengthen European distribution. In the event of warranty claims or module replacements, local service response times may be longer than with suppliers who have well-established European logistics infrastructure.
- At 22.5% efficiency, this panel is on par with typical N-type 550-600W modules
- Power density of 224.9 W/m² matches the N-type 550-600W median
- At -0.28%/°C, hot weather performance is typical for N-type 550-600W panels
- At 32.5 kg, this panel is 2.2 kg heavier than the N-type 550-600W median (30.3 kg) - more demanding for installation crews
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
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 595 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.
Alternatives
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About the HS 186R-144 TC-D Alpine series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.