--- title: "Horay Solar HS500TC-MHB Solar Panel: Specs & Datasheet | ComparePV" description: "Horay Solar HS500TC-MHB solar panel. Specs: 22.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/horay-solar-hs500tc-mhb" image: "https://comparepv.com/og/panel/horay-solar-hs500tc-mhb.png" updated: 2026-09-11 --- # Horay Solar HS500TC-MHB Strong in heat, modest efficiency 142 panels in the segment N-type 500-550 W ## Identity - **Manufacturer:** Horay Solar - **Model:** HS500TC-MHB - **Series:** Basin HS 191R-120 TC - **Rated power:** 500 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 500-550 W (142 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 500 W | 520 W | Weak - bottom 8% | | | Module efficiency | 22.10% | 22.55% | Weak - bottom 21% | 6,076 | | Power density | 221.1 | 225.3 | Typical | 6,033 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 23% | 1,347 | | Weight (kg) | 23.5 kg | 26.2 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.10% | 22.55% | Weak - bottom 21% | 6,076 | | Power density | 221.1 | 225.3 | Typical | 6,033 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 23% | 1,347 | | Weight per kWp | 47.0 | 50.0 | Typical | 1,450 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 23% of the N-type 500-550 W segment, against a median of -0.290. ### Watch out for - **22.10% module efficiency** - Bottom 21% of the N-type 500-550 W segment, against a median of 22.55%. - **Best for:** Hot roofs and southern climates. - **Not ideal for:** Tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 500 W - **Efficiency:** 22.10 % - **Voltage at Pmax (Vmp):** 36.67 V - **Current at Pmax (Imp):** 13.64 A - **Open-circuit voltage (Voc):** 43.23 V - **Short-circuit current (Isc):** 14.52 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:** 120 ### Physical - **Length:** 1994 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.5 kg - **Area:** 2.26 m2 - **Power density:** 221.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 437 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6076 of 14129 | | Power density | 6033 of 14129 | | Temperature coefficient | 1347 of 14129 | | Weight | 1450 of 14129 | | Warranty | 21 of 14129 | ## Pros - **N-type TOPCon cell technology** - N-type cells exhibit a lower annual degradation rate (~0.40%/yr) compared to PERC (~0.55%/yr), delivering ~4-5% more cumulative energy output over a 30-year system life. The lower Pmax temperature coefficient (typically -0.30%/°C vs. -0.34%/°C for PERC) also improves yield on hot summer days. - **Rectangular G12R wafer format (191R)** - The rectangular 191 mm G12R wafer format enables denser cell packing on the module face compared to the standard 182 mm square format, achieving up to 520 Wp with only 120 half-cut cells. The higher power density translates to fewer modules required per unit of roof or ground area. - **30-year linear power warranty** - Horay Solar backs the Basin series with a 30-year linear power warranty, in line with current premium TOPCon segment standards. Combined with the inherently low N-type degradation rate, this simplifies DCF modeling for commercial investors and satisfies lender requirements for project-finance structures. - **BNEF Tier-1 bankable status (from Q1 2025)** - Horay Solar joined the BloombergNEF Tier-1 bankable manufacturer list in Q1 2025 and maintained that status through Q1 2026. Tier-1 designation lowers risk premiums in project-finance transactions and satisfies institutional lender due-diligence requirements for commercial and utility-scale PV installations. ## Cons - **Product warranty only 12 years** - The current premium N-type TOPCon segment standard is 15 years of product (workmanship) warranty - e.g., HT-SAAE HT54-18X(N): 15 yr, LONGi Hi-MO X6: 15 yr. The 12-year term offered for the Basin series is 20% shorter, which may be a constraint for project-finance debt tenors exceeding 10-12 years. - **Module efficiency below top-tier peers** - The series peaks at 23.0% module efficiency, while direct competitors in the same 500-520 Wp power band achieve: HT-SAAE HT54-18X(N) - 23.8%, TCL Zhonghuan Back Contact - 23.5%. The 0.8-1.7 percentage-point gap translates to less peak power per unit area, which matters most in space-constrained rooftop or ground installations. - **Monofacial module** - The Basin series is monofacial (is\_bifacial: false), unlike the DAH Solar DHN-60R20/DG (Double Glass bifacial) competing in the same 520 Wp power class. On ground-mount systems with reflective surfaces (albedo >20%), a bifacial module can harvest 5-15% additional energy from reflected irradiance, making this series less optimal for utility-scale projects where LCOE optimization is critical. ## About this series The Horay Solar Basin HS 191R-120 TC series is an advanced solution based on innovative **rectangular N-type cells** that redefine module surface area efficiency. Through the implementation of **TOPCon** technology, these panels offer significantly higher performance in low-light conditions and minimal power degradation over time, leading to a faster return on investment. The construction of the Basin series is characterized by exceptional mechanical resistance, effectively eliminating the risk of micro-cracks under extreme weather loads. The use of **bifacial technology** enables additional energy yield from reflected radiation, making these modules an ideal choice for demanding ground-mounted installations and modern commercial systems. What distinguishes them from the competition is the precise optimization of cell dimensions, allowing for maximum power density while maintaining full compatibility with popular mounting systems. This is a solution dedicated to investors seeking **maximum durability and energy stability** over the long-term. This series effectively addresses the challenge of limited space, providing more energy from every square meter thanks to its unique internal structure. It is an optimal choice that combines modern design with uncompromising energy yield parameters. ## Notable figures - Efficiency of 22.1% matches the \*\*N-type 500-550W\*\* median - 221.1 W/m² power density is 4.2 W/m² below \*\*N-type 500-550W\*\* median (225.3 W/m²) - requires larger installation area - Temperature coefficient of -0.28%/°C matches the \*\*N-type 500-550W\*\* median - 23.5 kg weight - 2.7 kg lighter than \*\*N-type 500-550W\*\* median (26.2 kg), reducing installation effort - Ranked #6076 out of 14129 panels for efficiency in the database ## Questions ### What warranty does Horay Solar offer on the Basin HS 191R-120 TC series? Horay Solar provides a 12-year product warranty covering materials and workmanship, and a 30-year linear power output warranty on the Basin HS 191R-120 TC series. The 30-year power guarantee means the panels will produce at least the manufacturer-specified output for three full decades of operation - one of the longer power warranty terms available on the European market. ### What is TOPCon technology in the Basin HS 191R-120 TC and what are the real-world benefits? TOPCon (Tunnel Oxide Passivated Contact) is an advanced N-type silicon cell technology delivering higher efficiency than standard PERC cells and a lower degradation rate over time due to reduced LID and LeTID. In practice, this means more energy produced over the full system lifetime, particularly during summer heat and in spring or autumn with limited irradiance. ### Do the Basin HS 191R-120 TC panels perform well on overcast days or in low-light conditions? Yes. The N-type TOPCon cells in the Basin HS 191R-120 TC show superior spectral response under low irradiance compared to PERC technology. This results in higher energy yields on cloudy days, at dawn, and at dusk. In Central European climates with frequent overcast skies, this characteristic has a measurable impact on annual energy production. ### What is the peak power of the Horay Solar Basin HS 191R-120 TC and how many panels are needed for a typical home? The Basin HS 191R-120 TC delivers a peak output of 520 Wp per module. A typical residential prosumer system between 6 and 10 kWp requires only 12 to 20 modules. The high per-module wattage reduces the total panel count needed to reach the target system size, lowering installation labor costs and minimizing required roof or ground area. ### Are the rectangular cells in the Basin HS 191R-120 TC compatible with standard racking systems? The rectangular cell format is an internal design choice optimized for maximum power density, but the overall module dimensions remain compatible with standard racking systems for pitched roofs, flat roofs, and ground-mount applications. Always verify dimensional fit with your installer before purchase, particularly when using proprietary mounting hardware. ### Is Horay Solar a reliable manufacturer and are the Basin HS 191R-120 TC panels available in Europe? Horay Solar is a Chinese manufacturer classified as Tier 1 by Bloomberg NEF, confirming financial stability and consistent production quality. Tier 1 status is a key criterion for project financing eligibility. The Basin series modules comply with IEC and CE standards required for the European market. Confirm availability with authorized distributors in your region. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HS191R-120TC-Basin-520W-0424bf7a9451.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +10 W, cooler, +2.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +2.6 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, heavier, +2.6 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +2.4 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.4 pp | | [Horay Solar HS505TC-MHB](https://comparepv.com/panel/horay-solar-hs505tc-mhb) | 505 W | Very close match | | [Horay Solar HS510TC-MHB](https://comparepv.com/panel/horay-solar-hs510tc-mhb) | 510 W | +10 W, +0.5 pp | | [Horay Solar HS515TC-MHB-D](https://comparepv.com/panel/horay-solar-hs515tc-mhb-d) | 515 W | +15 W, heavier, +0.7 pp | | [Horay Solar HS520TC-MHB-D](https://comparepv.com/panel/horay-solar-hs520tc-mhb-d) | 520 W | +20 W, heavier, +0.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +60 W, cooler, +2.7 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +55 W, cooler, +2.5 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +50 W, lighter, +2.3 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +40 W, cooler, +2.3 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +40 W, cooler, +2.3 pp | --- Source: https://comparepv.com/panel/horay-solar-hs500tc-mhb Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.