Skip to main content
KIOTO Solar Brand review

KPV 445Wp HC

445 Wp TOPCon
ComparePV verdict

Efficiency leader, weak in heat

Rank 4,903 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.83
Strong · top 1%
Density (Wp/m²)
222.7
Strong · top 21%
Temp (%/°C)
-0.320
Weak · bottom 7%
Weight (kg)
22.5
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

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.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.83% 22.00% Strong · top 1% 2,683
Power density 222.7 220.2 Strong · top 21% 5,300
Temperature coefficient -0.320 -0.290 Weak · bottom 7% 8,312
Weight per kWp 50.6 51.4 Typical 3,950
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 4 caution
Best for

Residential and commercial.

Not ideal for

Hot climates.

Strengths
22.83% module efficiency

Top 1% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 2,683rd in the whole database.

222.7 watts per square metre

Top 21% of the TOPCon 400-450 W segment, against a median of 220.2.

Watch-outs
-0.320 %/°C temperature coefficient

Bottom 7% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 8,312th in the whole database.

What owners get
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.

Trade-offs
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.

Notes from the database
  • 22.8% module efficiency - 0.8pp better than the TOPCon 400-450W median of 22.0%
  • Power density of 222.7 W/m² matches the TOPCon 400-450W median
  • Temperature coefficient of -0.32%/°C is 0.03pp worse than TOPCon 400-450W median (-0.29%/°C) - higher losses in summer heat
  • #2683 for efficiency, #8312 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.83 % Strong Segment median 22.00%
Vmpp · Impp 34.31 V · 12.97 A Operating point at max power
Voc · Isc 39.95 V · 13.66 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1748×1143×35 mm · 2.00 m² of roof
Weight 22.5 kg Typical Typical · median 22.0 kg
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.320 %/°C Weak bottom 7% of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 389 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.320 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
KIOTO Solar KPV 445Wp HC 445 W 22.83% -0.320 22.5 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, cooler, +1.7 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, cooler, +1.7 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, cooler, +1.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, cooler, +1.5 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +1.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, cooler, +1.5 pp
KPV 440 Wp HCB 440 W 22.02% -0.320 22.5 kg -0.8 pp
KPV 450Wp HC 450 W 22.53% -0.320 22.5 kg -0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.2 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, cooler, +1.9 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +55 W, cooler, +1.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +55 W, cooler, +1.7 pp

Found 67 panels of the same or similar size to this one, within ±10 mm. See them here Found 1639 panels of the same or similar size to this one, within ±25 mm. See them here Found 3397 panels of the same or similar size to this one, within ±50 mm. See them here Found 3769 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
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.
Add to compare