--- title: "Horay Solar HS455TC-MHB-D 455W Solar Panel - Specs & Review | ComparePV" description: "Horay Solar HS455TC-MHB-D 455W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/horay-solar-hs455tc-mhb-d" updated: 2026-09-11 --- # Horay Solar HS455TC-MHB-D Strong in heat, heavy for its output 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Horay Solar - **Model:** HS455TC-MHB-D - **Series:** HS 191R-108 TC-D Basin - **Rated power:** 455 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (301 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 470 W | Weak - bottom 22% | | | Module efficiency | 22.30% | 22.52% | Typical | 5,100 | | Power density | 222.9 | 225.2 | Typical | 5,100 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 21% | 1,309 | | Weight (kg) | 25.0 kg | 23.7 kg | Weak - bottom 18% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 22.52% | Typical | 5,100 | | Power density | 222.9 | 225.2 | Typical | 5,100 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 21% | 1,309 | | Weight per kWp | 54.9 | 49.5 | Weak - bottom 18% | 9,326 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 21% of the N-type 450-500 W segment, against a median of -0.290. ### Watch out for - **54.9 kg per kWp** - Bottom 18% of the N-type 450-500 W segment, against a median of 49.5. - **Best for:** Residential and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 33.00 V - **Current at Pmax (Imp):** 13.79 A - **Open-circuit voltage (Voc):** 38.90 V - **Short-circuit current (Isc):** 14.68 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:** N-type - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1800 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.04 m2 - **Power density:** 222.9 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 | 5100 of 14005 | | Power density | 5100 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 9326 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon with 191R rectangular half-cut cells** - The Basin series uses N-type TOPCon cells on rectangular 182mm wafers, virtually eliminating LID (Light-Induced Degradation) and maximizing module fill factor. The rectangular cell geometry (191R designation) delivers up to 475 Wp within standard rooftop frame dimensions, and the typical N-type TOPCon Pmax temperature coefficient (~-0.30%/°C) is notably superior to PERC modules (-0.35%/°C). - **Bifacial double-glass construction** - Tempered glass on both sides (double glass) replaces a hydrolysis- and micro-crack-prone backsheet, providing resistance to ammonia and mechanical loads above the standard 5400 Pa. The bifacial design captures reflected irradiance from the ground surface, delivering a typical energy gain of 5–15% depending on albedo — directly boosting annual yield on installations with light-colored or snow-covered substrates. - **30-year linear power warranty** - Horay Solar backs the Basin series with a 30-year linear power warranty, matching peers such as JA Solar JAM54D40 LB and Longi Hi-MO X10 in the 475 Wp segment. The linear structure avoids stepped degradation thresholds, guaranteeing a higher minimum output in every year of operation compared to tiered warranty models. - **BNEF Tier-1 bankable status (Q1 2025)** - Horay Solar officially joined the Bloomberg NEF Tier-1 Solar Module Manufacturers list in Q1 2025, confirming the company's bankability. This status is a prerequisite for project financing by banks and investment funds and is a key risk-assessment criterion for prosumers pursuing PV loans or leasing arrangements. ## Cons - **Max efficiency 23.0% vs. 23.8% among peer comparables** - The Basin series tops out at 23.0% module efficiency, while direct peer comparables — JA Solar JAM54D40 LB and Astronergy ASTRO N7s 2.0 — both reach 23.8% at the same 475 Wp rating. The 0.8 percentage-point gap translates to approximately 3.5% less energy from an identical roof area; on a typical 10 kWp residential system this amounts to roughly 300–380 kWh/year of foregone generation versus the most efficient Tier-1 alternatives. - **Limited manufacturer scale vs. market leaders** - Horay Solar's annual production capacity is approximately 2.5 GW with a workforce of ~400 employees — a fraction of JA Solar (~70 GW) or Longi Solar (~85 GW). Given a 30-year linear power warranty, this scale disparity is a tangible risk factor regarding the manufacturer's long-term ability to honor warranty obligations and maintain a global service network. ## About this series Horay Solar HS 191R-108 TC-D Basin photovoltaic panels utilize advanced **N-type TOPCon cell technology**, which directly translates to significantly higher efficiency and better performance on cloudy days. By using rectangular cells with optimized architecture, these modules maximize the use of available surface area, offering high power output while maintaining dimensions convenient for rooftop installations. A key advantage of the Basin series is the **bifacial double-glass design**, which, through the use of glass on both sides of the module, provides extreme resistance to moisture, ammonia, and mechanical loads. This eliminates the risk of micro-cracks and significantly extends the system lifespan, solving the problem of rapid component degradation. Investing in these modules guarantees an **exceptionally low temperature coefficient**, which means the system maintains high energy production even during summer heatwaves. This series is primarily dedicated to demanding prosumers who care about **maximizing yields per square meter** while maintaining the highest aesthetics. Compared to the competition, this product stands out with an almost zero LID degradation effect and an extended warranty on linear power decrease, making it one of the safest and most stable choices on the Polish market. ## Notable figures - Efficiency of 22.3% matches the \*\*N-type 450-500W\*\* median - At 222.9 W/m² power density, roof space requirements are typical for \*\*N-type 450-500W\*\* panels - Temperature coefficient of -0.28%/°C matches the \*\*N-type 450-500W\*\* median - At 25.0 kg (1.3 kg above \*\*N-type 450-500W\*\* median of 23.7 kg), requires checking roof load capacity - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What is the warranty on Horay Solar HS 191R-108 TC-D Basin panels? The Basin series comes with a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. The linear warranty means the annual power degradation rate is pre-defined and contractually guaranteed by the manufacturer. Combined with Horay Solar's Tier 1 status, this makes the Basin series one of the safer long-term investment choices available on the market. ### Are Horay Solar HS 191R-108 TC-D Basin panels suitable for pitched roof installations? Yes, the 475 Wp Basin series modules are designed primarily for prosumer installations on both pitched and flat roofs. The optimized rectangular cell architecture delivers high output within dimensions standard for residential rooftops. Keep in mind that the double glass construction is somewhat heavier than conventional backsheet modules, so verifying roof load capacity before installation is recommended. ### How does N-type TOPCon technology in the Basin series compare to older PERC panels? N-type TOPCon cells achieve higher efficiency and better sensitivity to diffuse irradiance than PERC technology, translating into greater energy output on overcast days common in Central European climates. Additionally, N-type technology virtually eliminates Light Induced Degradation (LID), so the panel delivers full rated power from the very first hours of operation without the initial output drop characteristic of P-type cells. ### Do Horay Solar Basin panels perform well during summer heat waves? Yes. One of the key advantages of the Basin series is its exceptionally low temperature coefficient, meaning each degree Celsius rise in module temperature causes a smaller power loss than average market competitors. In practice, the system maintains high energy output even during summer heat waves, when standard modules experience noticeable efficiency drops. ### How many Horay Solar HS 191R-108 TC-D Basin panels do I need for a 5 kWp system? At 475 Wp per module, just 11 panels are enough to build a system exceeding 5 kWp. For a typical single-family home consuming 5,000–8,000 kWh annually, this means fewer mounting points, lower installation labor costs, and less roof area occupied compared to older, lower-wattage modules. ### What is the double glass bifacial construction of the Basin series and what does it mean in practice? The HS 191R-108 TC-D Basin series uses tempered glass on both the front and rear of the module instead of a standard polymer backsheet. The glass back more effectively blocks moisture and ammonia ingress, protects cells against microcracks, and withstands significantly higher mechanical loads. In practice, this means a longer module lifespan, lower degradation risk, and more stable energy production throughout the full 30-year power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HS191R-108TC-D-Basin-475W-6f5fafd07d88.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +2.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +2.2 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +2.2 pp | | [Horay Solar HS460TC-MHB](https://comparepv.com/panel/horay-solar-hs460tc-mhb) | 460 W | Lighter, +0.3 pp | | [Horay Solar HS465TC-MHB](https://comparepv.com/panel/horay-solar-hs465tc-mhb) | 465 W | +10 W, lighter, +0.5 pp | | [Horay Solar HS470TC-MHB](https://comparepv.com/panel/horay-solar-hs470tc-mhb) | 470 W | +15 W, lighter, +0.7 pp | | [Horay Solar HS475TC-MHB](https://comparepv.com/panel/horay-solar-hs475tc-mhb) | 475 W | +20 W, lighter, +1.0 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/horay-solar-hs455tc-mhb-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.