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TiSUN GmbH

Austrian solar energy manufacturer producing solar thermal, photovoltaic and storage systems under the SONNENKRAFT and KIOTO SOLAR brands.

Last updated September 27, 2026

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Overview

TiSUN GmbH is an Austrian manufacturer of renewable energy systems, operating commercially under the SONNENKRAFT brand. Based in the Tyrol region of Austria, the company describes itself as a European specialist for renewable energy and has been active in the solar sector since 1991, giving it more than three decades of solar competence. Its product range covers solar thermal collectors, photovoltaic modules, inverters, battery storage systems, hot water and buffer tanks, and hydraulic stations and pumps — marketed as complete system solutions "from a single source" and "Made in Austria". The company positions itself as one of the leading manufacturers of environmentally friendly energy generation, with a stated focus on highly efficient system solutions, technology and design leadership, CO2-friendly production facilities, and circular economy principles. Its portfolio is organised around four application areas — systems and solutions, electricity, heat, and water — and includes branded lines such as the POWER module for high irradiance conditions, the Power Alpin module for high snow loads, the Plug & Play Sonnenkraftwerk, Sonnengläser for roofing, facade, fence and balcony railing systems, Sonnenkraft hybrid and standard inverters, the SONNENKRAFT BATTERIE and BATTERIE ALL-IN-ONE storage systems, the SKB-MAX AC storage system, the SKR500 Design-Wannenkollektor and PFM Plug & Flow module collector, COMPACT hot water tanks, COMFORT buffer storage tanks, and the Sonnentank Comfort Plus and PRO system storage tanks. Photovoltaic modules are produced under the KIOTO SOLAR brand. The company states that it has more than one million satisfied customers and that its solutions can turn buildings into power stations, reducing energy costs by up to 75%. It also offers digital tools intended to make energy generation faster and more efficient for customers. TiSUN GmbH is a private company; its commercial identity is closely tied to the SONNENKRAFT brand, through which its products are sold across European markets.

History

TiSUN GmbH traces its solar activities to 1991, when the company began developing and producing solar energy systems in Austria. Over the following decades it built a portfolio of solar thermal and photovoltaic products marketed under the SONNENKRAFT brand, and it states that it has accumulated more than 30 years of solar competence. The company is based in the Tyrol region of Austria and describes itself as a European specialist for renewable energy. From its origins in solar thermal technology, TiSUN expanded into photovoltaics, inverters, battery storage and complete building energy systems. Photovoltaic modules are produced under the KIOTO SOLAR brand. The company reports that it has served more than one million customers and that its systems can reduce building energy costs by up to 75%. Its manufacturing is presented as CO2-friendly, with circular economy as a standard principle, and its products are marketed as "Made in Austria" system solutions supplied from a single source. Today TiSUN GmbH operates as a private Austrian company whose commercial identity is closely associated with the SONNENKRAFT brand, offering systems and solutions across electricity, heat and water applications for European markets.

  • 1991

    TiSUN begins developing and producing solar energy systems in Austria.

  • Company accumulates more than 30 years of solar competence and serves over one million customers.

  • Photovoltaic modules are produced under the KIOTO SOLAR brand.

Products and positioning

European specialist for renewable energy; leading manufacturer of environmentally friendly energy generation offering complete system solutions Made in Austria.

  • POWER module

    Photovoltaic module for high irradiance conditions.

  • Power Alpin module

    Photovoltaic module designed for high snow loads.

  • Plug & Play Sonnenkraftwerk

    Plug-and-play solar power plant solution.

  • Sonnengläser

    Solar glass for roofing, facade, fence and balcony railing systems.

  • Sonnenkraft Hybrid Wechselrichter

    Hybrid inverter for solar systems.

  • Sonnenkraft Standard Wechselrichter

    Standard inverter for solar systems.

  • SONNENKRAFT BATTERIE

    Battery storage system.

  • SONNENKRAFT BATTERIE ALL-IN-ONE

    All-in-one battery storage system.

  • SKB-MAX AC Speichersystem

    AC-coupled battery storage system.

  • SKR500 Design-Wannenkollektor

    Design solar thermal collector.

  • PFM Plug & Flow Modulkollektor

    Plug-and-flow modular solar thermal collector.

  • COMPACT Warmwasserspeicher

    Hot water storage tank.

  • COMFORT Puffersystemspeicher

    Buffer system storage tank.

  • Sonnentank Comfort Plus

    System storage tank.

  • Sonnentank PRO

    System storage tank.

  • CLEAN Hydraulik Stationen & Pumpen

    Hydraulic stations and pumps.

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