--- title: "KIOTO Solar vs A.B. Energy - Brand Comparison | ComparePV" description: "Compare KIOTO Solar vs A.B. Energy solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/kioto-solar-vs-a-b-energy" --- # KIOTO Solar vs A.B. Energy KIOTO Solar has the broader catalog (7 vs 0 models). KIOTO Solar leans bifacial (57% of lineup). ## The two companies | Attribute | KIOTO Solar | A.B. Energy | | --- | --- | --- | | Country | Austria | Germany | | Headquarters | St. Veit an der Glan | Wiesbaden | | Founded | 1991 | 1996 | | Employees | 201-500 | 1,400 | | Annual capacity | \<1 GW/year | | | Tier 1 | no | | | Listed | | Xetra, Frankfurt Stock Exchange: AB9 | | Website | [https://www.kiotosolar.com](https://www.kiotosolar.com) | [https://abo-energy.com](https://abo-energy.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... ABO Energy is a renewable energy company that develops and constructs renewable energy projects, focusing on wind, solar, and storage facilities. They offer turnkey solutions and have connected several gigawatts of nominal output to the grid. The company is active internationally and is committed to driving the energy... ## Catalog & Power | Measure | KIOTO Solar | A.B. Energy | Margin | | --- | --- | --- | --- | | Panel Models | 7 | 0 | +7 | | Max Power | 450 W | 0 W | +450 W | | Avg Power | 446 W | 0 W | +446 W | ## Efficiency | Measure | KIOTO Solar | A.B. Energy | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.83% | - | | | Avg Efficiency | 22.53% | - | | ## Reliability & Warranty | Measure | KIOTO Solar | A.B. Energy | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.309%/°C | - | | | Bifacial Share | 4 (57%) | 0 (0%) | +57 pp | | Avg Warranty | 27.1 yrs | - | | ## Efficiency distribution | Efficiency band | KIOTO Solar | A.B. Energy | | --- | --- | --- | | 22-23% | 7 (100.0%) | 0 | ## Power distribution | Power band | KIOTO Solar | A.B. Energy | | --- | --- | --- | | 400-499W | 7 (100.0%) | 0 | ## Cell technology Dominant cell tech: **TOPCon** (100%) | Technology | KIOTO Solar | A.B. Energy | | --- | --- | --- | | TOPCon | 7 (100.0%) | 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 | ## Summary KIOTO Solar (formally KIOTO Photovoltaics GmbH) is an Austrian manufacturer founded within the Sonnenkraft group, with production sites in St. Veit/Glan (Carinthia) and Wernersdorf (Styria). Its production capacity is reported at approximately 70 MW per year, which places it well below the roughly 1 GW annual output threshold associated with BloombergNEF Tier 1 bankability status - KIOTO has not appeared on those lists. The company positions itself as Austria's domestic market leader and exports modules across Europe on a quality-first, "Made in Austria" basis. A.B. Energy srls is a far smaller entity: an Italian distributor based in Catanzaro, Calabria, with roots in the electric and electronic equipment sector. Its ENF Solar listing classifies it as a seller rather than a manufacturer, and no credible source identifies it as holding independent production capacity, Tier 1 status, or any comparable institutional footprint. On that basis, KIOTO Solar carries the distinctly stronger institutional profile of the two. KIOTO Solar's product range spans monocrystalline PERC panels in the 310-430 Wp class up to newer TOPCon and bifacial glass-glass modules reaching roughly 480 Wp, with panel warranties of 12 years and a 25-year linear performance guarantee. Its modules are distributed through European installer networks and are suited to residential rooftops and small-to-medium commercial installations where European manufacturing provenance is a purchasing criterion. A.B. Energy, by contrast, distributes third-party branded panels - search results show it reselling LONGi Hi-MO X6 units alongside inverters and all-in-one battery storage systems. It functions as a regional solutions integrator rather than a technology originator, with no proprietary cell or module technology to compare against KIOTO's in-house PERC and TOPCon lines. For a buyer comparing these two specifically, KIOTO Solar is the clear default wherever module provenance, warranty depth, or documented manufacturing quality matter. A.B. Energy may serve buyers in its local Italian market who prefer a one-stop-shop that bundles panels, inverters, and storage, but as a component supplier it is not meaningfully comparable to an established European module manufacturer. \---LINKS--- \- https://www.solarfeeds.com/biz/kioto-solar/ \| KIOTO Solar company overview - production capacity and Tier 1 status \| article \- https://www.enfsolar.com/kioto-solar \| KIOTO Photovoltaics GmbH - ENF Solar manufacturer profile \| article \- https://www.vpsolar.com/en/kioto-modules-high-performance-with-perc-technology/ \| Kioto modules - high performance with PERC technology \| article \- https://www.enfsolar.com/a-b-energy \| A.B. Energy srls - ENF Solar seller profile Italy \| article Sources: \- \[KIOTO Solar Company Overview - SolarFeeds\](https://www.solarfeeds.com/biz/kioto-solar/) \- \[KIOTO Photovoltaics GmbH - ENF Solar\](https://www.enfsolar.com/kioto-solar) \- \[Kioto modules: high performance with PERC technology - VP Solar\](https://www.vpsolar.com/en/kioto-modules-high-performance-with-perc-technology/) \- \[A.B. Energy srls - ENF Solar\](https://www.enfsolar.com/a-b-energy) Written by claude-sonnet from the figures above. ## Other comparisons - [KIOTO Solar vs AE Solar](https://comparepv.com/kioto-solar-vs-ae-solar) - [AEET vs A.B. Energy](https://comparepv.com/aeet-vs-a-b-energy) - [KIOTO Solar vs AIKO](https://comparepv.com/kioto-solar-vs-aiko) - [AKCOME vs A.B. Energy](https://comparepv.com/akcome-vs-a-b-energy) - [KIOTO Solar vs ARTsolar](https://comparepv.com/kioto-solar-vs-artsolar) - [ASM vs A.B. Energy](https://comparepv.com/asm-vs-a-b-energy) --- Source: https://comparepv.com/kioto-solar-vs-a-b-energy Not in this file, on the page: the distributions above drawn as charts.