Austrian Fronius Launches 128 kWh Reserva Pro Battery Made in Europe
2026-06-12 11:37
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en.Wedoany.com Reported - Fronius International GmbH has launched a new energy storage solution, the Fronius Reserva Pro high-voltage battery, targeting small commercial, agricultural, and large residential applications, with its battery cells and modules manufactured in Europe.

The new Fronius Reserva Pro high-voltage battery is scalable up to 128 kWh and, when paired with the Fronius Verto Plus hybrid inverter, delivers up to 33.3 kW of power per unit. The battery integrates seamlessly with the Fronius Verto Plus and GEN24 Plus hybrid inverters, covering the entire process from commissioning to daily operation. Regional Sales Manager Verena Huber stated that fluctuating energy prices are driving businesses and households to seek greater energy independence, and this locally manufactured large-capacity energy storage solution in Europe is designed to meet such needs, helping farms, small and medium-sized enterprises, and large residences achieve true energy independence.

Fronius Reserva Pro battery tower with capacity up to 128 kWh, Verto Plus hybrid inverter with power up to 33.3 kW

The Fronius energy storage system, equipped with the Fronius Backup Controller, can instantly switch from grid-connected mode to full backup mode to handle power outages. The controller can be mounted directly on a DIN rail without the need for an external transfer box. Croatian Technical Advisor Kristijan Topalovic noted that this design balances efficiency and space savings.

For large commercial systems, the Fronius Argeno offers a power rating of 125 kW, utilizing silicon carbide technology with a peak efficiency of 99.1%. Technical Advisor Nevena Kisin explained that the device is equipped with ten MPP trackers, capable of adapting to scenarios with different module orientations and tilt angles to optimize energy output. The Fronius Argeno supports up to 200% oversizing capability and integrates Type 1+2 surge protection, providing safeguards for commercial and industrial photovoltaic projects.

Fronius, an Austrian family-owned company founded in 1945, manufactures most of its products at its facilities in Upper Austria and the Czech Republic. The company currently employs approximately 6,000 people, with 37 subsidiaries and sales partners in 69 countries, and holds 1,752 active patents (as of 2024). Fronius continues operations in the welding and solar & energy business segments, offering long-term service and warranty support.

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