Fronius Reserva Pro—the storage solution made in Europe*

Long-established Austrian company Fronius is expanding its product portfolio with a new energy storage solution. The Fronius Reserva Pro helps customers with higher energy needs, such as farms, SMEs, and even large family homes, to embrace true energy independence. This high-efficiency solution, with cells and modules made in Europe, comes backed up by proven Fronius quality.

A standout feature of the high-voltage battery is its flexible scalability with storage capacities of 12 to 32 kWh per tower and up to 128 kWh in parallel connection. Perfectly matched to the Fronius hybrid inverters Verto Plus and GEN24 Plus,the Fronius Reserva Pro fits seamlessly into the Fronius product portfolio, from commissioning through everyday operation.

Ready for anything—including power outages

“Energy independence is becoming an increasingly popular choice. People want to make sure they’re covered. Our Fronius Reserva Pro also makes this an option for customers with higher energy needs, such as farms, SMEs, or large family homes,” says Harald Scherleitner, CSO of Fronius International.

With its backup power function and black-start capability, the Fronius Reserva Pro ensures a stable supply even in the event of a power outage. In this case, Fronius inverters work together with a switching component, such as the Fronius Backup Controller, which maintains a reliable supply to the connected loads. The system switches to backup power mode, while the Reserva Pro makes the stored energy available.

This combination is crucial to keeping companies in the black, particularly in industries such as agriculture that depend on stable refrigeration chains and working milking systems. “Reserva Pro and Verto Plus are a real dream team. This dynamic duo delivers charging and discharging powers of up to 28.3 kW, which means that even large loads such as feed mills or planers can stay up and running in the event of a power outage or even be started if necessary,” says Scherleitner.

Maximum efficiency

The DC coupling ensures that the PV power generated is transferred into the battery and used with an especially high degree of efficiency. Installation of the Fronius Reserva Pro is quick and straightforward. By utilizing an effortless stacking design, it completely eliminates the need for hardware. This simplifies and speeds up both the initial installation and later expansions.

Using advanced AI technology, the Fronius Energy Cost Assistant continuously analyzes the expected production of the PV system, the energy consumption, and the current electricity price. Based on fluctuations in energy prices, it pinpoints the ideal time to charge or discharge the battery, saving money in the process.

On the safe side

The lithium iron phosphate cell chemistry used in the Fronius Reserva yields a particularly long battery life and high level of safety. Along with product safety, data security is a top priority at Fronius. Data is stored exclusively on European servers and clouds to ensure high cybersecurity and data privacy. “Data security is a top priority for us. Customer and system data, for example, is stored separately and exclusively in Europe,” explains Scherleitner.

The Fronius Solar.web monitoring platform offers customers with a battery storage system the option of quickly and easily charging the battery from the grid using an app. For example, it can ensure the energy storage system is fully charged before a storm and keep the home supplied with power during an outage, even when there’s no sunlight.

Made in Europe*

Fronius is a family business and produces the majority of its products in Europe, primarily at its sites in Upper Austria and the Czech Republic. This focus on European value creation helps the company guarantee its high quality and safety standards, which is why both the cells and modules of the Reserva Pro are manufactured in Europe.

*Made in Europe: Cells and modules manufactured in the EU

We are Fronius

Around 6,700 employees worldwide at the end of 2024, a current export share of 90 percent, and 1,752 active patents: that’s us, that’s Fronius. Founded in 1945 as a regional one-man operation, we are now a global player—a fact that is impressively demonstrated by our 37 international subsidiaries and our network of sales partners in more than 60 countries. And yet, at heart, we are still a family-owned company from Austria, active in the electrical and electronics industry. Fronius Welding continuously revolutionizes welding technology, while Fronius Solar & Energy focuses on making the best possible use of solar energy and optimizing battery charging systems for intralogistics. We have been pursuing a clear goal for 80 years now: researching electricity and putting it to efficient use as the fuel of the future. We develop products and solutions for a future worth living in, offering our customers an all-in-one package in the process: from advance planning and consulting to ongoing monitoring and services tailored to their specific needs. We are innovative. We are curious. We are Fronius.

Fronius Solar & Energy

We create energy solutions for an emissions-free future: in private homes, on farms, in small and medium-sized enterprises, and for large-scale commercial and industrial projects. Our innovative products are the answer for using solar energy as a power supply, for heating and air conditioning, and to charge electric vehicles. We also offer charging solutions for traction batteries in intralogistics and for starter batteries in vehicle workshops.

Fronius Welding

Maximum arc quality, a deep understanding of our customers, a thirst for technical progress: we are the innovation leader in arc welding and the global market leader in robot-assisted welding. Our customized, automated complete systems and digital welding solutions for Industry 5.0 are the product of our expertise. Intuitive welding machines for manual welding applications, high-quality welding accessories, and effective protective products to keep specialists safe round off our portfolio. Our technologies establish connections between people, industries, and metals.

Fronius International GmbH
Mag. Simone Wevels, BA
Telefon: +43 664 8502072
E-Mail: wevels.simone@fronius.com

Visit: www.fronius.com/en