About This Product

The Fronius 63kWh Three Phase Reserva Module AUS-NZ is a high-voltage lithium iron phosphate battery storage system designed for larger three-phase Fronius solar installations in Australia and New Zealand. It provides approximately 63 kWh of usable storage by combining four Reserva battery towers in parallel.

The Reserva platform uses DC coupling to transfer solar energy directly into battery storage through a compatible Fronius hybrid inverter. Its modular architecture allows multiple battery towers to operate together without requiring a separate battery combiner box, providing a practical solution for homes and businesses with higher daily energy requirements.

Who This Product Suits

This 63 kWh Fronius Reserva configuration suits larger three-phase homes, rural properties, workshops and small commercial sites with substantial solar generation and higher overnight or evening energy consumption.

It is particularly suitable for customers wanting to maximise solar self-consumption, reduce reliance on grid electricity and build a complete Fronius-based system using compatible Fronius hybrid inverters and Solar.web monitoring. Final inverter, backup and battery configuration should be designed by a qualified installer to suit the site’s loads and electrical supply.

Specifications Explained

• Usable Storage Capacity: Approximately 63.16 kWh when configured as four 15.79 kWh Reserva battery towers.
• Battery Chemistry: Lithium iron phosphate (LFP), selected for thermal stability, durability and suitability for regular charge and discharge cycling.
• High-Voltage Battery: Designed to operate with compatible Fronius hybrid inverters using a high-voltage DC battery connection.
• DC Coupled: Solar energy can be transferred from the PV array into the battery through the hybrid inverter without first being converted to AC.
• Parallel Operation: Up to four Reserva battery towers can operate in parallel, allowing the system to reach approximately 63 kWh of usable capacity.
• Maximum Battery Current: The Reserva system supports a maximum output current of 32 A, with actual charging and discharging performance also determined by the connected inverter.
• Protection Rating: IP65 for installation in suitable indoor or protected outdoor locations in accordance with Fronius installation requirements.
• Operating Temperature: Designed for operation from -20°C to +55°C, with charging or discharging power potentially reduced at temperature extremes.
• Communication: Uses Modbus RS485 communication between the battery system and compatible Fronius equipment.
• Monitoring: Integrates with Fronius Solar.web so inverter, battery and other compatible Fronius system information can be monitored from the same platform.

Summary

The Fronius 63kWh Three Phase Reserva Module AUS-NZ provides a large-capacity battery storage option for compatible three-phase Fronius solar systems. Using four modular Reserva battery towers, the system delivers approximately 63 kWh of usable LFP storage and supports DC-coupled operation with compatible Fronius hybrid inverters.

It is a suitable choice for installations where a standard residential battery is not large enough and where the customer wants solar generation, battery storage, inverter control and monitoring within the Fronius ecosystem.

Further Information From The Manufacturer

Converting solar energy, controlling, distributing and using solar energy – and now also storing solar energy: With the Fronius Reserva, the Austrian provider of solar electronics completes its product portfolio.

The Fronius Reserva is a high-voltage battery with DC coupling that guarantees almost loss-free charging and discharging performance. The storage modules are stacked on top of each other like building blocks as a plug-and-play connection without the need for cabling. The new battery storage system is optimally matched to the two hybrid inverters Fronius GEN24 Plus and Fronius Verto Plus and can therefore be seamlessly integrated into an existing photovoltaic system. The tried-andtested Solar.web app is all that is needed for visualization; no additional software is required. The Fronius Reserva status display also shows the current charge status and indicates if there is a fault.

Bundle Includes:

• 20 x Fronius 3.15kWh Reserva Module AUS-NZ (Stock code 105859)
• 4 x Fronius Reserva BMS AUS-NZ (Stock code 105860)

Weights & Measurements Information

About Fronius

Fronius is a long-established European manufacturer known for high-reliability inverters used in residential and commercial solar systems. Founded in 1945 and still family-owned, the company designs and builds its inverters with a strong focus on durability, serviceability and long-term product support.

Fronius is recognised in the industry for its active cooling approach, robust monitoring platform and strong technical presence in Australia. Their inverter platforms are widely used by installers who prioritise performance, clear diagnostics and long service life.