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KIOTO Solar Brand review

KPV 450Wp HC NE (G/G-TC)

450 Wp TOPCon Bifacial 3000%
ComparePV verdict

Space saver, short guarantee

Rank 9,457 of 14,005
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 9%
Efficiency (%)
22.52
Typical · median 22.52%
Density (Wp/m²)
230.4
Strong · top 14%
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
25.0
Weak · 1.0 kg above median
Warranty (yrs)
25
Weak · bottom 3%

KIOTO Solar SOLAR-MODULE for Standard Applications 35 mm are double-glass modules with an anodized aluminum frame, designed for versatile applications - from standard roof installations to large-scale photovoltaic farms. A key feature of this series is TOPCON bifacial technology in a half-cut configuration, which absorbs solar radiation from both the front and back of the module - the active rear surface provides a significant additional energy yield compared to traditional monofacial panels, which is particularly beneficial in installations with reflective surfaces or ground-mounted systems. The anti-reflective front glass minimizes light losses, while the partially printed ceramic back glass provides an aesthetically pleasing and uniform appearance, which is highly valued in representative installations. Decentralized connection boxes with original Stäubli MC4 EVO2 connectors simplify wiring and increase system reliability, while the half-cut cell arrangement minimizes the impact of partial shading on energy production. The modules have undergone rigorous tests for solar fog and ammonia, confirmed by IEC certifications, which guarantees long-term durability even in demanding climatic and environmental conditions. This series is dedicated to installers and developers seeking modules that combine high performance with elegant aesthetics and proven reliability.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.52% 22.52% Typical 4,108
Power density 230.4 225.2 Strong · top 14% 1,708
Temperature coefficient -0.300 -0.290 Weak · bottom 20% 6,093
Weight per kWp 55.6 52.2 Weak · bottom 11% 9,909
Performance warranty 25 yrs 30 yrs Weak · bottom 3% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 5 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Owners who want a long output guarantee, weight-limited structures and hot climates.

Strengths
230.4 watts per square metre

Top 14% of the TOPCon 450-500 W segment, against a median of 225.2.

Watch-outs
25 year performance warranty

Bottom 3% of the TOPCon 450-500 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database.

55.6 kg per kWp

Bottom 11% of the TOPCon 450-500 W segment, against a median of 52.2.

-0.300 %/°C temperature coefficient

Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290.

What owners get
Bifacial N-type TOPCon half-cut cells

TOPCon half-cut cell technology delivers lower LID degradation and a better temperature coefficient than P-type PERC. Bifacial design captures additional rear-side irradiance — typically 5–15% extra yield in ground-mount systems with high-albedo surfaces — directly lowering the installation's LCOE.

Factory-fitted Stäubli MC4 EVO2 connectors

Decentralized junction boxes equipped with OEM Stäubli MC4 EVO2 connectors represent a premium BoS choice — full MC4 cross-compatibility, contact resistance < 0.5 mΩ, which minimizes resistive losses and simplifies field servicing compared to generic connectors.

Glass-glass build + IEC salt-mist & ammonia certification

The dual-glass, anodized aluminum-framed construction has passed IEC 61701 (salt-mist) and IEC 62716 (ammonia) testing, confirming suitability for coastal and agricultural environments. Glass-glass laminates typically support a module service life exceeding 30 years and significantly reduce PID risk.

European manufacturing since 1991

KIOTO Solar has been operating out of Austria since 1991, offering European supply-chain traceability, no Asian-import tariff exposure (EU CBAM, anti-dumping duties), and over three decades of market presence as evidence of operational stability.

Anti-reflective coating + ceramic rear-glass print

The AR-coated front glass maximizes light transmission, while the partially ceramic-printed rear glass delivers a homogeneous visual appearance — a key differentiator for BIPV and commercial rooftop projects where aesthetics influence client and planning decisions.

Trade-offs
Not on BNEF Tier-1 list

KIOTO Solar does not appear on the Bloomberg NEF Tier-1 PV Module Manufacturer list, meaning the company has not documented independent commercial bank financing of at least six projects > 10 MW in the past two years. For utility-scale developers (> 1 MWp), this may complicate or block project debt financing without additional insurance or guarantees.

Efficiency below top peer comparables

The series tops out at 22.79% efficiency, while peer-comparable SunKean/Sunket SKT430~450M10-108D5 modules reach 23.04% at the same 450 Wp nameplate power. The ~0.25 pp gap equates to roughly 4.9 W/m² less output — a meaningful constraint for space-limited rooftop installations where every square centimeter drives total system capacity.

Notes from the database
  • At 22.5% efficiency, this panel is on par with typical TOPCon 450-500W modules
  • At 230.4 W/m² power density, this panel generates 5.2 W/m² more per unit area than TOPCon 450-500W median (225.2 W/m²)
  • Temperature coefficient of -0.30%/°C matches the TOPCon 450-500W median
  • Weight of 25.0 kg is typical for TOPCon 450-500W panels
  • #4108 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.52 % Typical Segment median 22.52%
Vmpp · Impp 29.14 V · 15.45 A Operating point at max power
Voc · Isc 35.14 V · 16.01 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×35 mm · 1.95 m² of roof
Weight 25.0 kg Weak Weak · 1.0 kg above median
Cells 108 · TOPCon Monocrystalline
Bifaciality 3000 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 20% of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 3% · median 30 yrs
End-of-warranty output 80.2 % Equals 345 W guaranteed
Degradation 3.00 → 0.70 % 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
-
With bifacial gain
-

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

Heat losses
-0.300 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
KIOTO Solar KPV 450Wp HC NE (G/G-TC) 450 W 22.52% -0.300 25.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +45 W, +2.3 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +40 W, +2.0 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +2.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, +2.0 pp, +5 yr warranty
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, +2.0 pp, +5 yr warranty
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, +2.0 pp, +5 yr warranty
KPV 440Wp HC NE (G/G-TC) 440 W 22.53% -0.300 25.0 kg -10 W
KPV 445Wp HC NE (G/G-TC) 445 W 22.79% -0.300 25.0 kg +0.3 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +55 W, cooler, +2.2 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Does the bifacial TOPCon technology in the KIOTO Solar SOLAR-MODULE 35 mm series actually increase energy production?
Yes. The half-cut TOPCon cells capture solar radiation from both the front and rear side of the module (albedo gain). The rear glass with partial ceramic print allows reflected light from the ground to contribute several additional percentage points of yield. The effect is most pronounced in ground-mounted systems with reflective substrates such as white gravel or snow cover.
What warranty does the KIOTO Solar SOLAR-MODULE für Standardanwendungen 35 mm come with?
The manufacturer provides a 15-year product warranty covering physical and material defects, and a 25-year linear power output warranty. The power warranty guarantees that over 25 years the module will maintain a minimum performance level relative to its rated output of 450 Wp. Before purchasing, confirm with the distributor who handles warranty service in your local market.
Are KIOTO Solar SOLAR-MODULE 35 mm panels suitable for utility-scale solar farms?
Yes, the series is engineered for large ground-mounted installations and solar farms. The bifacial double-glass design maximizes albedo yield, while the 450 Wp rated power keeps module count and BoS costs per kWp competitive. IEC-certified salt mist and ammonia resistance tests confirm long-term durability under demanding field and industrial environmental conditions.
How do KIOTO Solar SOLAR-MODULE 35 mm panels perform under partial shading?
The half-cut cell layout splits each cell into two halves, so shade on one portion of the module does not shut down the entire string. Decentralized junction boxes with genuine Stäubli MC4 EVO2 connectors further limit loss propagation between cell sections. This is a significant advantage for rooftop installations with chimneys or dormers as well as for solar farms with uneven horizon shading.
Is KIOTO Solar a reliable manufacturer, and where is it headquartered?
KIOTO Solar is a photovoltaic module manufacturer headquartered in Austria. The company is not listed in the BloombergNEF Tier 1 ranking; however, its panels carry IEC certifications including salt mist and ammonia resistance tests, confirming product quality. When purchasing, verify the availability of authorized warranty service in your market and ensure the distributor can supply documentation required by lenders or insurers.
Are the Stäubli MC4 EVO2 connectors on KIOTO Solar SOLAR-MODULE 35 mm panels compatible with standard inverters and cables?
Stäubli MC4 EVO2 connectors are one of the leading industry standards in PV installations, compatible with the vast majority of inverters and prefabricated solar cables on the market. The decentralized junction box design simplifies cable routing and future maintenance. When mating connectors from different manufacturers, always confirm electromechanical compatibility with your installer to maintain warranty validity.
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