--- title: "Horay Solar HS455TC-MHC-D 455W Solar Panel - Specs & Review | ComparePV" description: "Horay Solar HS455TC-MHC-D 455W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/horay-solar-hs455tc-mhc-d" updated: 2026-09-11 --- # Horay Solar HS455TC-MHC-D Strong in heat, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Horay Solar - **Model:** HS455TC-MHC-D - **Series:** HS 210R-96 TC-D Cosmos (N-type bifacial modules) - **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:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 30.10 V - **Current at Pmax (Imp):** 15.12 A - **Open-circuit voltage (Voc):** 36.21 V - **Short-circuit current (Isc):** 15.97 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:** 96 - **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:** 83.1 % - **First-year degradation:** 1.00 % - **Output after 30 years:** 378 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 - **Up to 22.8% efficiency — top of segment** - The peak efficiency of 22.8% places the Cosmos series on par with the best-in-class peer comparables (Sunlike Solar SKT420~455M10-108D6: 22.8%, IBC Module LS-TA2: 22.8%) and well above the Waaree ARKA series (20.93%). On space-constrained rooftops, this translates directly into higher energy yield per square meter of available area. - **30-year linear power warranty — 87.4% at year 30** - The official datasheet guarantees ≥87.4% of nameplate power after 30 years of operation, implying an annual degradation rate below 0.43%. This compares favorably to the market standard of 25 years / 84.8% retained power offered by many Tier-1 manufacturers (JA Solar, Longi), and the higher terminal value improves LCOE projections in long-horizon financial models. - **TOPCon N-type + SMBB half-cut: low LID and thermal losses** - N-type TOPCon cells feature a temperature coefficient of Pmax at −0.28%/°C versus the typical −0.35%/°C for PERC, which in Polish climate conditions (module temperatures of 55–70°C in summer) yields a real seasonal output gain of approximately 2–3%. Super Multi Busbar (SMBB) cell interconnection minimizes series resistance losses, while inherently low LID ensures stable nameplate power from the first weeks of operation. - **Glass-glass bifacial construction — ~80% bifacial factor** - A glass-glass module with a ~80% bifacial factor harvests an additional 4–12% of energy from ground-reflected irradiance (white TPO membrane, gravel, or light-colored roofing). The dual-glass construction also eliminates backsheet delamination risk common in older PV designs and improves long-term mechanical integrity. - **BNEF Tier 1 since Q1 2025 + IEC61215:2021 / IEC61730:2023** - Horay Solar achieved BNEF bankable Tier 1 status in Q1 2025 — a prerequisite for project financing and insurance on commercial installations. Certifications to IEC61215:2021 and IEC61730:2023 (2023 edition), combined with declared resistance to salt mist and ammonia, make the series suitable for agri-PV and coastal deployments. ## Cons - **15-year product warranty below premium standard** - The product warranty covers 15 years, whereas higher-tier premium manufacturers (Hanwha Q-CELLS Q.PEAK DUO, Panasonic EverVolt) offer 25-year product warranties in a comparable price bracket. For institutional investors whose project insurance or lender requirements mandate a minimum 20-year product warranty, this may be a disqualifying criterion. - **Limited service network in Poland and Europe** - Horay Solar is a relatively new entrant on the BNEF Tier 1 list (since Q1 2025, founded 2010, annual capacity ~2,500 MW), without an established authorized service network in Poland. In the event of a product warranty claim, response times and spare-parts availability may be longer than those of manufacturers with multi-year European distribution footprints (JA Solar, Longi, Canadian Solar) — a tangible risk for commercial-scale installations. ## About this series The Horay Solar HS 210R-96 TC-D Cosmos series is a range of bifacial N-type modules designed to maximize energy production under real-world operating conditions - even when every square meter of roof space counts. Thanks to its glass-glass construction and bifacial operation, the panel can utilize reflected light from the ground, resulting in more stable daily energy production and improved return on investment. A key feature of this series is the **SMBB half-cell technology**, which improves current collection and reduces heat losses within the cells, as well as **low LID (light-induced degradation) susceptibility**, which is typical for N-type modules - important for maintaining high efficiency over the long term. For installations exposed to harsh conditions, the modules offer **enhanced environmental resistance** (including saline mist and ammonia) and **robust connection and junction box protection**. This is a good choice for roofs of homes, commercial buildings, and installations where high performance is important, even under less intense sunlight, and where long-term energy production predictability is desired. ## 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 - At -0.28%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - 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 TOPCon technology in the Horay Solar HS 210R-96 TC-D Cosmos series, and is it worth the premium over PERC? TOPCon (Tunnel Oxide Passivated Contact) is a next-generation N-type cell architecture that achieves higher efficiency than conventional PERC and exhibits very low LID (Light-Induced Degradation), meaning minimal power loss at the start of operation. In the Cosmos series this translates to more stable output across the module's entire lifetime and a lower LCOE for the overall system. For most residential prosumer installations, the advantage over PERC becomes clearly noticeable after several years of operation. ### How much power do Horay Solar Cosmos 455W panels produce on overcast days or during winter in Central Europe? The Cosmos series uses N-type SMBB half-cut cell technology, which improves current collection and reduces thermal losses at the cell level. The bifacial glass-glass construction also captures light reflected from the ground, such as snow or light-colored surfaces, boosting yield during winter months. Horay Solar confirms higher output under low-irradiance conditions. Actual energy yield depends on roof tilt, azimuth, and local shading. ### What warranty does the Horay Solar HS 210R-96 TC-D Cosmos series carry and what does it actually cover? The Cosmos series comes with a 15-year product warranty covering material and workmanship defects, and a 30-year linear power warranty. According to the datasheet, the module should retain at least 83.1% of rated power after 30 years and at least 87.4% after 15 years. Horay Solar holds Tier 1 status, which adds credibility to the warranty terms. In practice, warranty claims are typically handled through the local distributor or importer. ### Are Horay Solar Cosmos panels suitable for agricultural buildings or coastal installations? Yes, the HS 210R-96 TC-D Cosmos series has passed salt spray and ammonia corrosion resistance tests, making it a solid choice for barns, poultry farms, and other agricultural environments, as well as coastal zones. The glass-glass construction provides superior protection against moisture and chemical exposure compared to standard backsheet modules. This is one of the key differentiators of this line versus lower-cost alternatives. ### How much roof area do I need for a 5 kWp installation using Horay Solar Cosmos 455W panels? The Cosmos 455W module is built on 96 half-cut M10 (210 mm) cells with approximate dimensions of 1762 by 1134 mm. A 5 kWp system requires around 11 panels, corresponding to roughly 22 m² of active module area, not counting mounting gaps required by the racking system. Always have an installer perform a roof survey to account for skylights, chimneys, or shading objects before finalizing the layout. ### Is Horay Solar a reputable manufacturer and can I trust that the warranty will be honored in 15 years? Horay Solar is listed on Bloomberg NEF's Tier 1 PV manufacturer ranking, confirming its financial stability and production scale. The company supplies modules to European markets through certified distributors. For added security, choose a distributor with a local office that handles warranty claims directly, and keep the purchase invoice and warranty certificate for the full duration of the installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HS210R-096TC-D-Cosmos-455W-1a732b3acd21.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-mhc-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.