The Fronius Reserva 6.3kWh is a high-voltage DC-coupled battery storage system with 2 modules, BMS and base, designed for seamless integration with Fronius GEN24 Plus and Verto Plus hybrid inverters.
Its stackable plug-and-play design allows quick installation with no internal cabling, while the IP65 rating ensures reliable performance for residential solar + battery systems.
Ideal for smaller storage setups or scalable systems, with monitoring via Fronius Solar.web and secure data storage on European servers.
One Stop Shop
Fronius now offers all the components for 24 hours of sun - a complete PV system from a single source. With the Fronius Reserva, we are adding a powerful battery to our portfolio that perfectly complements your energy system. Everything is ideally matched, saving you time and ensuring smooth processes. The optimal interaction of our devices ensures efficient and reliable operation. Service is also straightforward: a single point of contact is all you need. With the Solar.web app, you can keep an eye on all your Fronius devices, such as the Reserva, the GEN24 Plus hybrid inverter and the Wattpilot EV charger, without the need for additional third-party tools. Add to that the security of the Fronius warranty and the quality of a company with over 80 years of experience.
Maximum Efficiency - Maximum Independence
Experience maximum independence with the Fronius Reserva! Thanks to DC coupling, the energy from your PV system is charged into the battery with almost no loss - for maximum efficiency and full power. The high-voltage technology optimises the cost-effectiveness of your system. Combined with the GEN24 Plus, you benefit from exceptional charge and discharge performance, making the most of even short windows of sunshine. With lithium iron phosphate cell chemistry, the Fronius Reserva is built to last and offers you reliable security.
Data Security
With Fronius Reserva, you can keep an eye on your data at all times - safely and securely. Our Solar.web monitoring platform visualises all important information and complies with all data protection regulations. Your data is only stored on European servers. Fronius adheres to the highest security standards: we meet the latest information security standards (ISO27001) and have regular security audits carried out by renowned companies. In addition, secure coding training is mandatory for our software developers to ensure the best possible protection for your data.
Proven Service & Support
Our technical support team offers comprehensive troubleshooting for the Fronius Reserva, as they can view all relevant system data (inverter and battery). For other compatible storage systems, in many cases the manufacturer has to be referred to. With the Fronius Reserva, we can take care of everything from a single source – quickly and easily. Fronius offers technical telephone support in several time zones and national languages. In addition, our online self-service tool Solar.SOS is available to installers around the clock. With a comprehe nsive network of Fronius partner companies, we ensure that our customers receive a smooth and timely replacement when servicing is required.
1 The charging and discharging current is limited by the inverter.
2 Regardless of the number of Fronius Reserva battery towers connected in parallel, the maximum output current is limited to 32 A. Example: Even with 4x15.8 kWh, the maximum DC charging/discharging power of the Fronius Verto Plus 30 remains approx. 16.38 kW.
3 Depending on the temperature, the charging/discharging capacity can be limited
Battery cosists of:
- 4.240.375 Reserva BMS and Base
- 4.240.384 x 2 Reserva Modules
Fronius Battery Storage Solution: Click to view
This resource provides valuable information about Implementation requirements, Back-up power options & DC Charge & Discharge values.
