Fronius – Shifting the Limits

The engineer Günter Fronius laid the foundation for today’s Fronius International in Austria in 1945. What began as a one-man business is now a globally active company with almost 5,500 employees. From the early days, the founder was already interested in sustainability by recharging car batteries. In the 1990s, the founder’s children set off for new shores and entered the solar energy business. Today, the photovoltaic division of the family-owned organization is one of three pillars. The company’s philosophy is based on sustainability, independence and healthy growth. 93% of production is exported to 60 countries worldwide. Other divisions of Fronius International are welding technology and electrical charging technology.

Fronius is represented in Europe, Brazil, Canada, Mexico, USA, Australia, China, Turkey, India, Japan, Hong Kong, Thailand and the Middle East. Fronius’ products are aimed at homeowners, business owners, solar installers, solar wholesalers and project planners.

At TRITEC you can order the following PV components from the Fronius  product range: Fronius Storge Systems and Fronius Inverters.

The Fronius product range at a glance

  • Inverters
  • Storage units
  • Products for system monitoring
  • PV Accessories
  • System solutions

Sustainability as an integral part of the company philosophy

Sustainability was already an important topic for founder Günter Fronius. He extended the life cycle of car batteries by recharging them. Since then, sustainability has been an integral part of the company philosophy.


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It is also a matter of course at Fronius to obtain the required electricity from the company’s own photovoltaic system. The solar modules are located partly on the façade of the company building and partly on the roof that spans the parking lot. One of the largest roof-mounted solar systems is mounted on the factory building in Sattledt. It has a module surface of 7,000 m² and produces 1 MWp of electricity. This would be enough to supply 250 households.

The company’s vehicle fleet is gradually being replaced by electric cars. For employees and visitors convenience, they can charge their cars at one of 60 charging stations provided at the Austria branches.

Successfully completed projects include

  • 1 MW solar plant on a field in Tauro, Greece
  • Roof-mounted solar system for a single-family house in Glenelg North, Australia
  • 46 kWp solar plant for a lemon plantation in Los Nogales, Argentina
  • A solar installation distributed over several houses with different roof orientations in Malviés, France