--- title: "KIOTO Solar vs AEET - Brand Comparison | ComparePV" description: "Compare KIOTO Solar vs AEET solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/kioto-solar-vs-aeet" --- # KIOTO Solar vs AEET KIOTO Solar has the broader catalog (7 vs 5 models). KIOTO Solar leads on peak efficiency at 22.83%. KIOTO Solar leans bifacial (57% of lineup). ## The two companies | Attribute | KIOTO Solar | AEET | | --- | --- | --- | | Country | Austria | | | Headquarters | St. Veit an der Glan | | | Founded | 1991 | | | Employees | 201-500 | | | Annual capacity | \<1 GW/year | | | Tier 1 | no | no | | Listed | | | | Website | [https://www.kiotosolar.com](https://www.kiotosolar.com) | | 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 beginning in 2005. It is the market leader for PV... ## Catalog & Power | Measure | KIOTO Solar | AEET | Margin | | --- | --- | --- | --- | | Panel Models | 7 | 5 | +2 | | Max Power | 450 W | 200 W | +250 W | | Avg Power | 446 W | 190 W | +256 W | ## Efficiency | Measure | KIOTO Solar | AEET | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.83% | 15.70% | +7.13 pp | | Avg Efficiency | 22.53% | 14.90% | +7.63 pp | ## Reliability & Warranty | Measure | KIOTO Solar | AEET | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.309%/°C | - | | | Bifacial Share | 4 (57%) | 0 (0%) | +57 pp | | Avg Warranty | 27.1 yrs | 25.0 yrs | +2.1 yr | ## Efficiency distribution | Efficiency band | KIOTO Solar | AEET | | --- | --- | --- | | 22-23% | 7 (100.0%) | 0 | | \<20% | 0 | 5 (100.0%) | ## Power distribution | Power band | KIOTO Solar | AEET | | --- | --- | --- | | 400-499W | 7 (100.0%) | 0 | | \<400W | 0 | 5 (100.0%) | ## Cell technology Dominant cell tech: **TOPCon** (100%) Dominant cell tech: **PERC** (100%) | Technology | KIOTO Solar | AEET | | --- | --- | --- | | TOPCon | 7 (100.0%) | 0 | | PERC | 0 | 5 (100.0%) | ## Top panels, KIOTO Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [KPV 450 Wp HC NE](https://comparepv.com/panel/kioto-solar-kpv-450-wp-hc-ne) | 450 | 22.5 | -0.300 | Monocrystalline | | 2 | [KPV 450Wp HC](https://comparepv.com/panel/kioto-solar-kpv-450wp-hc) | 450 | 22.5 | -0.320 | Monocrystalline | | 3 | [KPV 450Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-450wp-hc-ne-g-g-tc) | 450 | 22.5 | -0.300 | Monocrystalline | | 4 | [KPV 445Wp HC](https://comparepv.com/panel/kioto-solar-kpv-445wp-hc) | 445 | 22.8 | -0.320 | Monocrystalline | | 5 | [KPV 445Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-445wp-hc-ne-g-g-tc) | 445 | 22.8 | -0.300 | Monocrystalline | | 6 | [KPV 440 Wp HCB](https://comparepv.com/panel/kioto-solar-kpv-440-wp-hcb) | 440 | 22.0 | -0.320 | Monocrystalline | | 7 | [KPV 440Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-440wp-hc-ne-g-g-tc) | 440 | 22.5 | -0.300 | Monocrystalline | ## Top panels, AEET | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [SE200M(24)F](https://comparepv.com/panel/aeet-se200m-24-f) | 200 | 15.7 | - | Monocrystalline | | 2 | [SE195M(24)F](https://comparepv.com/panel/aeet-se195m-24-f) | 195 | 15.3 | - | Monocrystalline | | 3 | [SE190M(24)F](https://comparepv.com/panel/aeet-se190m-24-f) | 190 | 14.9 | - | Monocrystalline | | 4 | [SE185M(24)F](https://comparepv.com/panel/aeet-se185m-24-f) | 185 | 14.5 | - | Monocrystalline | | 5 | [SE180M(24)F](https://comparepv.com/panel/aeet-se180m-24-f) | 180 | 14.1 | - | Monocrystalline | ## Summary KIOTO Solar is an Austrian photovoltaic module manufacturer headquartered in St. Veit/Glan, Carinthia, operating under the broader Sonnenkraft group. The company runs production sites in both St. Veit/Glan and Wernersdorf (Styria), with output measured in the tens of megawatts range - well below the gigawatt-scale threshold that most bankability analysts require for a Tier 1 designation, and it does not appear on major BloombergNEF Tier 1 lists. AEET Energy Group GmbH is a German company based in Bad Gandersheim that positions itself primarily as a photovoltaic wholesale partner and full-service installer rather than a panel manufacturer in the traditional sense; it sources modules from various suppliers and resells them alongside installation, maintenance, and repair services. On institutional footprint, KIOTO has the clearer identity as a dedicated manufacturer with its own product line and European production credentials, while AEET operates more as a trade and services intermediary. KIOTO's catalog covers monocrystalline and polycrystalline crystalline-silicon modules suited to residential rooftops and light commercial projects. Notable product families include Alpine-rated modules engineered for high snow loads (up to 8,000 Pa), glass-glass units for architectural applications such as carports and greenhouses, and a Power MAXIM line that integrates cell-level optimizers to reduce shading losses. Because AEET is primarily a distributor, its "product range" is essentially the brands it sources at any given time - making a technology-by-technology comparison with KIOTO difficult and potentially misleading. For a buyer evaluating branded solar panels rather than a procurement or installation partner, KIOTO is the more directly comparable choice - offering an identifiable European-manufactured product line with documented certifications and a focus on Central European climate conditions. AEET may suit buyers in Germany who want a one-stop-shop for sourcing, installation, and ongoing service, but it should be evaluated as a channel partner rather than as a competing panel brand. The two operate in meaningfully different market roles, so treating them as direct substitutes is likely to lead to the wrong purchasing framework. \---LINKS--- \- https://www.enfsolar.com/kioto-solar \| KIOTO Photovoltaics GmbH - ENF Solar panel directory profile \| article \- https://www.enfsolar.com/aeet \| AEET Energy Group GmbH - ENF Solar panel directory profile \| article \- https://www.solarfeeds.com/biz/kioto-solar/ \| KIOTO Solar company overview - production capacity and Tier 1 status \| article \- https://energypal.com/best-solar-panels-for-homes/kioto-solar \| KIOTO Solar - EnergyPal 2025 buyer's guide entry \| review \- https://www.greentech.at/en/firmen/kioto-photovoltaics-gmbh/ \| KIOTO Photovoltaics GmbH - Green Tech Valley Cluster profile \| article Written by claude-sonnet from the figures above. ## Other comparisons - [KIOTO Solar vs A.B. Energy](https://comparepv.com/kioto-solar-vs-a-b-energy) - [AE Solar vs AEET](https://comparepv.com/ae-solar-vs-aeet) - [KIOTO Solar vs AIKO](https://comparepv.com/kioto-solar-vs-aiko) - [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet) - [KIOTO Solar vs ARTsolar](https://comparepv.com/kioto-solar-vs-artsolar) - [ASM vs AEET](https://comparepv.com/asm-vs-aeet) --- Source: https://comparepv.com/kioto-solar-vs-aeet Not in this file, on the page: the distributions above drawn as charts.