Introducing the Fronius Reserva - the long-awaited high-voltage battery storage solution from Fronius. Designed, engineered and put through a rigorous R&D process in Austria, Reserva represents a new benchmark in residential and light-commercial solar energy storage. It’s the perfect pairing with Fronius GEN24 Plus and upcoming Verto Plus hybrid inverters, delivering superior performance, sleek aesthetics, and long-term peace of mind.
Key Features
Modular, Stackable Design
The Fronius Reserva comes in a clean, space-saving tower format with 2 to 5 stackable modules per unit (each ~3.15 kWh). Choose from 6.3, 9.5, 12.6, or 15.8 kWh models—and scale up to 63 kWh by paralleling four towers for larger installations.
LFP Safety & Efficiency
Built with advanced Lithium Iron Phosphate (LFP) pouch cells, Reserva delivers a compact footprint with enhanced internal layout flexibility and a high safety profile compared to traditional battery chemistries.
Australian-Ready Durability
Rated IP65 and C4 corrosion resistant, Reserva is made for Aussie conditions—ideal for protected outdoor installations such as verandas or under eaves, and even suited to coastal areas within 200 m of the ocean.
Installer-Friendly Details
Reserva features genuine Staubli MC4 Evo Stor connectors, support for 6mm² and 10mm² cabling out of the box, front-facing LED status indicators, a built-in circuit breaker, and thoughtful design touches like a tidy rear cable entry and side-mounted communication/DC interfaces.
No Combiner Box Needed
Dual positive and negative DC connectors allow for seamless parallel connection between towers without the need for external combiner boxes—saving on both hardware costs and install time.
Seamless Integration with Fronius Ecosystem
Pair with the Fronius Wattpilot EV Charger, OhmPilot, or Smart Meter for an intelligent and efficient energy system. DC-coupling ensures excellent roundtrip efficiency with minimal loss from conversion.
Reliable Backup Power Options
Choose between Fronius's easy and cost-effective PV Point (up to 3 kW single-phase socket during outages) or Full Backup (with Fronius Backup Controller or pre-built backup boxes). Full backup enables automatic changeover in ~10–15 seconds using solar and battery to power your selected loads.
Trusted Support & Warranty
The Fronius Reserva is backed by a 10-year product warranty and supported by Fronius’s dedicated Australian and international support teams. Installers also benefit from diagnostics and service tools like Fronius.SOS, available 24/7.
Why Choose the Fronius Reserva?
Built on over 80 years of Austrian engineering excellence, the Fronius Reserva is a smart, flexible, and beautiful energy storage solution. It empowers homeowners and businesses to maximise solar usage, gain independence from the grid, and prepare for outages with confidence—all while maintaining Fronius’s commitment to performance, safety, and aesthetics.
Whether you’re investing for energy freedom, backup reliability, or just want to impress the neighbours—the Reserva has you covered.
Fronius
At Fronius Australia, the company is driven by a visionary commitment to achieving 24 hours of sun. In every endeavor undertaken, Fronius Australia is dedicated to contributing to a future where 100% of energy derives from renewable and clean sources. Since 2010, Fronius Australia has been a provider of high-quality technologies and solutions designed to control and monitor sustainable solar energy. The company forms strategic partnerships with industry leaders and businesses, including Fronius Solutions Partners, to advance this vision. In addition, Fronius Australia conducts regular Fronius Solutions Workshops throughout the year to ensure that installers and system integrators remain competitive and stay current with industry developments. Fronius Australia takes pride in offering top-tier solutions that align with their three core criteria for any solar system: Flexibility, Uptime, and Optimisation.
Alternative Products
These other products might interest you