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Manufacturer review

KIOTO Solar panels, read off the datasheets

KIOTO Solar (KIOTO Photovoltaics GmbH) is an Austrian manufacturer of photovoltaic modules, producing panels exclusively at its facility in St. Veit an der Glan, Carinthia. The company traces its roots to 1991 as part of the Sonnenkraft group, with PV module production...

Everything below is computed from those 7 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where KIOTO Solar does not publish a figure, it is left out of the average rather than assumed.

Panels
7
models in the database
Average efficiency
22.5%
across the catalogue
Best efficiency
22.8%
their strongest module
Power range
440-450 Wp
smallest to largest
Bifacial share
57%
4 dual-sided models
Average warranty
27 years
guaranteed output term
01

The top of the range

The leaders of KIOTO Solar's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.

Most efficient module efficiency
1 KPV 445Wp HC Monocrystalline 445 Wp 22.8% 2 KPV 445Wp HC NE (G/G-TC) Monocrystalline bifacial 445 Wp 22.8% 3 KPV 450Wp HC Monocrystalline 450 Wp 22.5% 4 KPV 440Wp HC NE (G/G-TC) Monocrystalline bifacial 440 Wp 22.5% 5 KPV 450 Wp HC NE Monocrystalline bifacial 450 Wp 22.5%
Sort the whole catalogue by efficiency
Highest power nameplate output
1 KPV 450 Wp HC NE Monocrystalline bifacial 22.5% 450 Wp 2 KPV 450Wp HC Monocrystalline 22.5% 450 Wp 3 KPV 450Wp HC NE (G/G-TC) Monocrystalline bifacial 22.5% 450 Wp 4 KPV 445Wp HC Monocrystalline 22.8% 445 Wp 5 KPV 445Wp HC NE (G/G-TC) Monocrystalline bifacial 22.8% 445 Wp
Sort the whole catalogue by power
02

By what the array is for

Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.

For a house roof 380-460 Wp
1 KPV 445Wp HC Monocrystalline 445 Wp 22.8% 2 KPV 445Wp HC NE (G/G-TC) Monocrystalline bifacial 445 Wp 22.8% 3 KPV 450Wp HC Monocrystalline 450 Wp 22.5% 4 KPV 440Wp HC NE (G/G-TC) Monocrystalline bifacial 440 Wp 22.5% 5 KPV 450 Wp HC NE Monocrystalline bifacial 450 Wp 22.5%
For a ground mount dual-sided
1 KPV 445Wp HC NE (G/G-TC) Monocrystalline bifacial 445 Wp 22.8% 2 KPV 440Wp HC NE (G/G-TC) Monocrystalline bifacial 440 Wp 22.5% 3 KPV 450 Wp HC NE Monocrystalline bifacial 450 Wp 22.5% 4 KPV 450Wp HC NE (G/G-TC) Monocrystalline bifacial 450 Wp 22.5%
03

What the catalogue is made of

Cell technology across the market

Shares are of the 7 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.

Cell technology share of the catalogue
TOPCon 100.0% 7
TOPCon accounts for 100.0% of the catalogue - 7 of 7 modules.
Efficiency spread share of the catalogue
22-23% 100.0% 7
04

Strengths and gaps

Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.

What this catalogue is good at
  • High-efficiency panels available (up to 22.8%)
  • Strong bifacial lineup - 57% of portfolio supports dual-sided generation
  • Strong warranty coverage averaging 27 years
  • Established manufacturer with 35+ years of experience
  • Large-scale production capacity of <1 GW
Where it is thin
  • No high-power panels (500W+) available for commercial use
05

In short

KIOTO Solar: KIOTO Solar is a solid option, offering 7 panels suitable for residential installations. With an average efficiency of 22.5% and top models reaching 22.8%, their panels deliver competitive performance.
Common questions
Is KIOTO Solar a good solar panel manufacturer?
KIOTO Solar offers 7 solar panel models with an average efficiency of 22.5%. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does KIOTO Solar make?
KIOTO Solar manufactures panels ranging from 440W to 450W, covering both residential and commercial applications. Their portfolio includes TOPCon (100%) cell technologies.
How efficient are KIOTO Solar solar panels?
KIOTO Solar panels have an average efficiency of 22.5%, with their most efficient model reaching 22.8%. This puts them in the competitive range in the current market.
Does KIOTO Solar make bifacial solar panels?
Yes, KIOTO Solar offers 4 bifacial panels, representing 57% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does KIOTO Solar offer on their solar panels?
KIOTO Solar panels come with an average performance warranty of 27 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.
Are KIOTO Solar panels good for residential use?
KIOTO Solar offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.
Does KIOTO Solar use TOPCon technology?
Yes, KIOTO Solar has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.
06

Compared with

Build your own

A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.

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