Strong in heat, modest efficiency
The Horay Solar HS 182-132 TC Ocean (N-type Mono-facial Modules) series are modules based on N-type technology with an SMBB (multi-busbar) design, designed for stable energy production under real-world conditions. A key advantage is lower power degradation over time, which translates to more predictable yields and better return on investment throughout the entire lifespan of the installation. In practice, this helps to mitigate the risk of performance losses that often affect standard solutions.
Another distinguishing feature of the Ocean series is excellent performance in low-sunlight conditions - which is important in Poland, where frequent cloud cover and shorter days can reduce production. The manufacturer also emphasizes compatibility with mainstream mounting systems and logistics, which makes it easier to design C&I farms and commercial installations without costly modifications. This is a good choice for C&I installations, PV farms, and projects where long-term reliability and a lower BOS (Balance of System) cost due to high power density are important.
Ranking
Signals from the data
Commercial and shaded-installations.
Tight roof space and roofs where every square metre has to count.
Top 10% of the TOPCon 500-550 W segment, against a median of -0.290. Ranked 1,347th in the whole database.
Top 18% of the TOPCon 500-550 W segment, against a median of 52.4.
Bottom 15% of the TOPCon 500-550 W segment, against a median of 22.74%.
Bottom 15% of the TOPCon 500-550 W segment, against a median of 227.4.
N-type TOPCon cells feature a Pmax temperature coefficient of approximately -0.30%/°C (vs. -0.34 to -0.45%/°C for PERC), delivering measurably higher yield at typical summer module temperatures of 60-70°C. The SMBB (multi-busbar) design reduces resistive losses and improves tolerance to micro-cracks, enhancing long-term reliability.
The Ocean series reaches 21.9-22.7% efficiency, clearly outperforming two of three direct peers in the segment: DMEGC GHxxxM10T-B66HST (20.9%) and Heliene 144HC M10 SL (20.9%). Higher Wp/m² lowers BoS costs (racking, cabling, land) in C&I and utility-scale PV installations.
The manufacturer guarantees power output for 30 years, exceeding many competitors that offer 25-year power warranties. For projects financed on a non-recourse basis, a longer warranty horizon reduces production risk and can improve project finance terms with lenders.
Horay Solar was included on the BNEF Tier-1 list starting Q1 2025, confirming bankability under the methodology requiring supply to ≥6 10 MW projects financed non-recourse by ≥6 independent banks. This status is a prerequisite for most institutional project financiers and simplifies due diligence for investors.
N-type TOPCon modules maintain 80-88% of rated efficiency under overcast conditions (irradiance 200 W/m²), versus 70-75% for standard P-type PERC. In Poland's climate, where a significant share of annual generation occurs during diffuse-light days, this translates into a measurably higher annual energy yield.
The Ocean series is a mono-facial module, whereas the direct peer Heliene 144HC M10 SL offers a bifacial version at the same 540 Wp power class, capable of generating an additional 5-25% energy in ground-mount installations with reflective ground cover. In utility-scale PV projects where bifacial is now the de facto standard, the absence of this feature is a significant limitation.
Gokin GK-5-60HG achieves 24.4% efficiency at the same 540 Wp power class - approximately 1.7 percentage points above the Horay Ocean maximum of 22.7%. In rooftop C&I installations with limited surface area, this gap directly reduces available peak power for a given footprint.
Leading Tier-1 manufacturers (JA Solar, LONGi, Trina Solar) now offer 15-year product warranties as standard. Horay Ocean's 12-year coverage is below this benchmark, which may represent higher module replacement cost risk during the mid-life phase of a 30-year PV project.
- Module efficiency of 22.1% is 0.6pp below average for TOPCon 500-550W panels (median: 22.7%)
- At 221.1 W/m², this panel generates 6.3 W/m² less per unit area than TOPCon 500-550W median (227.4 W/m²)
- Temperature coefficient of -0.28%/°C matches the TOPCon 500-550W median
- Weight of 24.5 kg (2.5 kg below TOPCon 500-550W median of 27.0 kg) allows easier transport and roof mounting
- In the top 43% for efficiency among all TOPCon panels
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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About the HS 182-132 TC Ocean (N-type Mono-facial Modules) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.