--- title: "Horay Solar HS455TC-MHA-D 455W Solar Panel - Specs & Review | ComparePV" description: "Horay Solar HS455TC-MHA-D 455W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/horay-solar-hs455tc-mha-d" updated: 2026-09-11 --- # Horay Solar HS455TC-MHA-D Strong in heat, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Horay Solar - **Model:** HS455TC-MHA-D - **Series:** HS 186R-108 TC-D Alpine - **Rated power:** 455 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 465 W | Typical | | | Module efficiency | 22.80% | 22.52% | Typical | 2,714 | | Power density | 227.7 | 225.2 | Typical | 2,888 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 11% | 1,309 | | Weight (kg) | 24.5 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.52% | Typical | 2,714 | | Power density | 227.7 | 225.2 | Typical | 2,888 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 11% | 1,309 | | Weight per kWp | 53.8 | 52.2 | Typical | 7,897 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 11% of the TOPCon 450-500 W segment, against a median of -0.290. - **Best for:** Hot roofs and southern climates. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 33.53 V - **Current at Pmax (Imp):** 13.57 A - **Open-circuit voltage (Voc):** 40.14 V - **Short-circuit current (Isc):** 14.03 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.280 %/degC - **Temperature coefficient of Voc:** -0.230 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 2.00 m2 - **Power density:** 227.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 398 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2888 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 7897 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon – minimal LID degradation** - N-type TOPCon cells exhibit first-year LID degradation below 1% and ≤0.4% annually thereafter, retaining ≥87.4% of nameplate power after 30 years. Older P-type PERC cells degrade at 0.55–0.7% per year, resulting in a cumulative yield difference of several hundred kWh over a 25-year project lifetime for a 435–455 Wp module. - **Bifacial Double Glass design (TC-D)** - The TC-D designation confirms bifacial cells in a glass–glass encapsulation, eliminating backsheet degradation and boosting mechanical resistance to snow and wind loads. Under typical Polish rooftop conditions (ground albedo 15–25%), bifacial gain is estimated at 5–12% additional energy yield compared to a monofacial module of equivalent front-side wattage. - **Up to 22.8% efficiency – top of the 108-cell segment** - The highest-power variant (455 Wp) achieves 22.8% module efficiency, matching direct peers Sunlike Solar SKT420~455M10-108D6 (22.8%) and IBC Solar LS-TA2 455 W (22.8%), while outperforming the Waaree ARKA Series (20.93%) by nearly 1.9 percentage points. Higher efficiency directly reduces the roof area needed for a given system capacity. - **BNEF Tier 1 status – bankable Q1 2025 / Q1 2026** - Horay Solar has appeared on the BloombergNEF Tier 1 PV Module Manufacturer list since Q1 2025 and maintained that status through Q1 2026. This bankability confirmation enables acceptance by project finance institutions and is a prerequisite for many commercial PV project loans and infrastructure funds. - **30-year linear power warranty** - The manufacturer provides a 30-year linear power warranty alongside a 15-year product warranty. The 30-year power guarantee aligns with the benchmark set by leading Tier-1 manufacturers (Trina Vertex S+, JA Solar Deep Blue), supporting long-term LCOE modeling and financial predictability throughout the system's operational life. ## Cons - **15-year product warranty – below market standard** - Most leading Tier-1 manufacturers in the TOPCon segment (Jinko Solar Tiger Neo, LONGi Hi-MO 6, Trina Vertex S+) offer a 25-year product warranty. The 10-year shortfall may be a deciding factor in commercial installations requiring extended warranty coverage or in bank-financed projects with minimum warranty duration requirements. ## About this series The Horay Solar HS 186R-108 TC-D Alpine series utilizes advanced **N-type TopCon** technology, which redefines efficiency standards even in difficult lighting conditions. The **Double Glass** construction provides exceptional mechanical resistance to extreme snow and wind loads, making these modules an ideal choice for investments in demanding climates. Thanks to the use of bifacial cells, the panels effectively utilize light reflected from the ground, significantly increasing the total energy yield from a limited mounting surface. A key feature of the series is **minimal linear degradation**, which guarantees stable power production for decades, effectively solving the problem of rapid efficiency loss known from older-generation modules. The product is aimed at conscious prosumers and commercial investors who seek uncompromising durability combined with modern aesthetics. The Alpine system distinguishes itself from the competition with a significantly better response to diffused light, which in the Polish climate zone directly translates into a faster return on investment. **High cell efficiency** combined with certified durability makes these panels the foundation of a safe and predictable micro-installation, while maintaining an excellent appearance on the roof surface. ## Notable figures - Efficiency of 22.8% matches the \*\*TOPCon 450-500W\*\* median - Power density of 227.7 W/m² matches the \*\*TOPCon 450-500W\*\* median - Temperature coefficient of -0.28%/°C matches the \*\*TOPCon 450-500W\*\* median - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #2714 out of 14005 panels for efficiency in the database ## Questions ### What is the product and power warranty for the Horay Solar HS 186R-108 TC-D Alpine? The Alpine series comes with a 15-year product warranty covering material and workmanship defects, and a 30-year linear power warranty — both at the top end of the market. N-type TOPCon cells degrade at typically less than 0.4% per year, so the module retains the vast majority of its 455 Wp rated output after three decades. The extended coverage reduces investment risk and simplifies long-term energy yield modeling. ### Can the Horay Solar Alpine panels handle heavy snow loads common in Central European winters? Yes. The Double Glass construction of the Alpine series is engineered for extreme weather conditions. Horay Solar glass-glass modules are rated for snow loads up to 5,400 Pa, equivalent to over 50 cm of wet snow. The dual tempered glass laminate and reinforced frame protect cells from mechanical deformation and moisture ingress throughout the module's full service life. ### What makes the TOPCon cell technology in the Alpine series worth the premium over PERC? N-type TOPCon cells achieve higher conversion efficiency than PERC because they capture a broader photon spectrum and reduce recombination losses at the cell surface. Annual degradation is typically below 0.4%, versus 0.5–0.7% for PERC modules. Over a 25–30-year system lifetime, this translates to measurably more kilowatt-hours per installed kilowatt-peak, making the higher upfront cost financially justified in most LCOE calculations. ### Is the HS 186R-108 TC-D Alpine a bifacial panel, and what real-world gain can I expect? Yes, the Alpine series is a bifacial module. The rear glass allows light reflected from roofing membranes, gravel, or light-colored surfaces to reach the cells and generate additional power. In typical rooftop installations, bifacial gain ranges from 5% to 12% above the nominal 455 Wp, depending on surface albedo and array tilt angle. ### How does the Alpine series perform under overcast skies and diffuse irradiance typical in Poland? The Alpine series shows a stronger low-light response than standard PERC modules, which matters greatly in Poland where more than half of annual irradiation arrives as diffuse light. N-type TOPCon cells maintain a higher short-circuit current at low irradiance levels, keeping the system productive even during October or March, which directly shortens the effective payback period. ### Is Horay Solar a reputable manufacturer — how is it rated by independent industry bodies? Horay Solar holds Bloomberg NEF Tier 1 status, confirmed in Q1 2025. This designation means the company meets strict financial and manufacturing criteria and is accepted by project finance banks for utility-scale PV investments. The combination of Tier 1 certification and a 30-year power warranty makes the Alpine modules a low-risk choice for both residential prosumers and commercial investors. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HS186R-108TC-D-Alpine-455W-575b788e7221.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +1.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +1.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +1.7 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +1.7 pp | | [Horay Solar HS435TC-MHC-D](https://comparepv.com/panel/horay-solar-hs435tc-mhc-d) | 435 W | -20 W, -1.0 pp | | [Horay Solar HS440TC-MHC-D](https://comparepv.com/panel/horay-solar-hs440tc-mhc-d) | 440 W | -15 W, -0.8 pp | | [Horay Solar HS445TC-MHC-D](https://comparepv.com/panel/horay-solar-hs445tc-mhc-d) | 445 W | -10 W, -0.5 pp | | [Horay Solar HS450TC-MHC-D](https://comparepv.com/panel/horay-solar-hs450tc-mhc-d) | 450 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/horay-solar-hs455tc-mha-d Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.