--- title: "KIOTO Solar KPV 450Wp HC 450W Solar Panel - Specs & Review | ComparePV" description: "KIOTO Solar KPV 450Wp HC 450W solar panel. Specs: 22.53% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/kioto-solar-kpv-450wp-hc" updated: 2026-09-11 --- # KIOTO Solar KPV 450Wp HC Middle of its segment, weak in heat 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** KIOTO Solar - **Model:** KPV 450Wp HC - **Series:** MODULE POWER - **Rated power:** 450 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 450 W | 465 W | Weak - bottom 9% | | | Module efficiency | 22.53% | 22.52% | Typical | 3,982 | | Power density | 225.2 | 225.2 | Typical | 4,224 | | Temperature coefficient | -0.320 | -0.290 | Weak - bottom 3% | 8,312 | | Weight (kg) | 22.5 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 | 22.53% | 22.52% | Typical | 3,982 | | Power density | 225.2 | 225.2 | Typical | 4,224 | | Temperature coefficient | -0.320 | -0.290 | Weak - bottom 3% | 8,312 | | Weight per kWp | 50.0 | 52.2 | Typical | 3,317 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.320 %/°C temperature coefficient** - Bottom 3% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 8,312th in the whole database. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 22.53 % - **Voltage at Pmax (Vmp):** 34.47 V - **Current at Pmax (Imp):** 13.06 A - **Open-circuit voltage (Voc):** 40.07 V - **Short-circuit current (Isc):** 13.68 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.320 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1748 mm - **Width:** 1143 mm - **Thickness:** 35 mm - **Weight:** 22.5 kg - **Area:** 2.00 m2 - **Power density:** 225.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3982 of 14005 | | Power density | 4224 of 14005 | | Temperature coefficient | 8312 of 14005 | | Weight | 3317 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-year product and power warranty** - KIOTO Solar offers 30 years of both product and linear power warranty, well beyond the industry-standard 12-15 year product and 25-year power warranties offered by most peers (SunKean, Suntech, Sunket), meaningfully lowering investment risk over the full system lifecycle. - **Premium N-type TOPCon cells** - Module efficiency reaches up to 22.83%, placing the series near the top of the segment (SunKean and Sunket achieve 23.04%, Suntech 22.5%) and well above older PERC technology, thanks to lower LID/LeTID degradation and better high-temperature performance. - **Certified 55 mm hail resistance** - The modules are certified to withstand ice ball impacts up to 55 mm in diameter, significantly exceeding the standard IEC 61215 requirement (25 mm), a key advantage in regions prone to hailstorms. - **Austrian manufacturing and strict QC** - Unlike most peers manufactured in China (SunKean, Suntech, Sunket), KIOTO Solar modules are produced in Austria since 1991, with cell sorting precision down to 0.1 A, minimizing string mismatch losses and improving parameter consistency. - **Anti-PID technology** - Built-in anti-PID protection shields the cells from potential-induced degradation, extending real-world system lifespan, especially in higher DC voltage installations and long strings. ## Cons - **Series discontinued** - According to manufacturer data, the MODULE POWER series is no longer in production (discontinued status), which limits the availability of replacement modules in case of failure and may complicate warranty servicing in the long term. - **Manufacturer not on BNEF Tier 1 list** - KIOTO Solar is not included on the BloombergNEF Tier 1 manufacturer list (as of Q1 2026), which can make bank financing (bankability) harder to obtain compared to Tier 1 modules, despite the company's long market presence since 1991. - **Efficiency below top peers** - Maximum efficiency of 22.83% is slightly lower than SunKean and Sunket New Energy (23.04% for the comparable 450 Wp power class), meaning marginally lower energy yield for the same roof area. ## About this series The **KIOTO Solar MODULE POWER** series consists of photovoltaic panels manufactured in Austria, which stand out from the competition due to their rigorous quality control at every stage of production. The modules are available in both **monocrystalline and polycrystalline** versions, allowing for solutions to be tailored to both roof-mounted installations with limited space and larger ground-mounted systems. A key advantage of the series is the **anti-PID technology**, which protects the cells from degradation caused by electrical potential - a problem that significantly reduces the lifespan of cheaper modules. The modules are sorted with precision to 0.1 A, minimizing losses due to parameter mismatches. The series also offers exceptionally high **hail resistance** - certified for a 55 mm diameter hailstone, providing peace of mind for users in regions with variable weather conditions. **25-year linear power warranty** with over 80% efficiency confirms the durability of these modules in long-term investments. The MODULE POWER series is designed for demanding installations connected to the grid, both in residential and commercial buildings. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - Power density of 225.2 W/m² matches the \*\*TOPCon 450-500W\*\* median - Temperature coefficient of -0.32%/°C is 0.03pp worse than \*\*TOPCon 450-500W\*\* median (-0.29%/°C) - higher losses in summer heat - At 22.5 kg, this panel is 1.5 kg lighter than \*\*TOPCon 450-500W\*\* median (24.0 kg) - easier handling during installation - #3982 for efficiency, #8312 for temperature performance out of 14005 panels ## Questions ### Is the KIOTO Solar MODULE POWER series still available for purchase? The MODULE POWER series has been discontinued and is no longer actively offered by KIOTO Solar. If you already own modules from this series, the manufacturer continues to honor the warranty terms. For a new installation, it is advisable to consider current KIOTO Solar series available through authorized distributors, as these are based on more recent cell technologies. ### What cell technology is used in KIOTO Solar MODULE POWER panels? MODULE POWER panels use TOPCon (Tunnel Oxide Passivated Contact) cell technology, which delivers higher conversion efficiency compared to older PERC cells. TOPCon performs better at elevated temperatures and exhibits a lower degradation rate, resulting in greater energy output over the entire service life of the module. ### What is the warranty on KIOTO Solar MODULE POWER panels? The manufacturer provides a 30-year product warranty and a 30-year linear power warranty. A linear power warranty means that degradation is spread evenly over the entire period, without steep drops in the first years of operation. This is one of the longest warranty standards available on the market and reflects the quality of manufacturing at the Austrian production facility. ### Are MODULE POWER panels resistant to hail and harsh weather conditions? Yes, the MODULE POWER series holds certified resistance to impact from a 55 mm diameter ice ball, which exceeds the standard IEC requirement of 25 mm. This makes the modules well-suited for regions prone to intense hailstorms. Additionally, rigorous quality control at the Austrian manufacturing plant minimizes the risk of structural defects during long-term exposure. ### What is the anti-PID technology in KIOTO Solar MODULE POWER panels and why does it matter? PID (Potential Induced Degradation) is a cell degradation phenomenon caused by voltage potential differences between the cells and the module frame, especially harmful in large systems and high-humidity environments. MODULE POWER modules feature built-in anti-PID protection that prevents this process and preserves system performance throughout the warranty period. This is particularly important in commercial and ground-mount installations operating at higher string voltages. ### Are the monofacial MODULE POWER panels rated up to 450 Wp suitable for residential rooftop installations? Yes, MODULE POWER panels up to 450 Wp are designed for both residential rooftop installations and commercial projects. As monofacial modules, they do not require a reflective surface beneath them. Precise cell sorting to within 0.1 A minimizes mismatch losses within a string, which is especially valuable when roof space is limited and every module needs to be optimized for maximum output. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Datenblatt_Power_Module_Standardanwendungen-4ff2572b8f8e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, cooler, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +2.0 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +2.0 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, cooler, +2.0 pp | | [KIOTO Solar KPV 440 Wp HCB](https://comparepv.com/panel/kioto-solar-kpv-440-wp-hcb) | 440 W | -10 W, -0.5 pp | | [KIOTO Solar KPV 445Wp HC](https://comparepv.com/panel/kioto-solar-kpv-445wp-hc) | 445 W | +0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/kioto-solar-kpv-450wp-hc Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.