Strong in heat, heavy for its output
The Horay Solar HS 182-108 TC-D Ocean series is designed for installations where high power density, predictable performance in varying conditions, and easy integration with popular mounting systems are crucial. The use of N-type cells in a half-cut configuration helps to minimize losses and stabilize output, especially under partial shading and uneven sunlight exposure. The manufacturer emphasizes SMBB technology, which improves current collection from the cell and supports even module performance over a longer lifespan. In practice, this translates to improved energy production in low-light conditions and greater resistance to typical degradation issues.
It is a good choice for residential and commercial rooftops where cost-effectiveness, aesthetics, and reliability are key. The Ocean series also offers a long, linear power warranty, which simplifies investment planning and sets it apart from many competing modules in this segment.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Weight-limited structures, tight roof space and roofs where every square metre has to count.
Top 4% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 1,347th in the whole database.
Bottom 13% of the TOPCon 400-450 W segment, against a median of 51.5.
Bottom 17% of the TOPCon 400-450 W segment, against a median of 22.00%.
Bottom 18% of the TOPCon 400-450 W segment, against a median of 220.2.
The manufacturer guarantees ≥87.4% of nominal power after 30 years of operation, directly outperforming Luxor Solar ECO LINE N-Type NON-REFLECT (25 years/87.5%) and Seraphim Nebula (standard 25 years). A longer linear warranty horizon simplifies LCOE modeling and is an asset when securing project finance for commercial installations.
A bifaciality factor above 80% enables an additional 10-20% energy yield from the rear side under suitable albedo conditions (gravel, white roofing membrane, snow). N-type cells degrade at ~0.4%/year versus ~0.5-0.7%/year for PERC, while the SMBB design reduces resistive losses and lowers the risk of hot-spots in half-cut cell configurations.
The -0.28%/°C Pmax coefficient outperforms Luxor ECO LINE N-Type (-0.30%/°C) and is significantly better than typical PERC modules (-0.36%/°C). At a cell temperature of 65°C - common during Central European summer peaks - the gap versus PERC translates to roughly 2.2 percentage points less power loss, yielding measurably higher output on hot days.
Horay Solar appears on the BloombergNEF Tier-1 Module Manufacturer list and maintained that status in Q1 2026, confirming bankability and meeting the due diligence requirements of project finance institutions. With 16 years on the market (since 2010) and ~2.5 GW/year of capacity, the manufacturer is recognized by project funds and insurers worldwide.
Horay Solar's manufacturing capacity of ~2.5 GW/year is a fraction of the top players: LONGi (~70 GW), JA Solar (~50 GW), and Trina Solar (~30 GW). For commercial projects requiring multi-MW deliveries within tight schedules, this may limit pricing negotiation leverage and supply-chain continuity assurances compared to top-5 global manufacturers.
- At 21.5% efficiency, this panel is on par with typical TOPCon 400-450W modules
- Power density of 215.1 W/m² is 5.1 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
- At -0.28%/°C, hot weather performance is typical for TOPCon 400-450W panels
- Weight of 24.0 kg is 2.0 kg above TOPCon 400-450W median (22.0 kg) - verify structural support
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
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 420 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 182-108 TC-D Ocean series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.