Fronius Reserva
Energy storage
Experience freedom, security and efficiency in a perfectly designed complete system.
With capacities from 6.3 to 15.8 kWh with two to five modules, it adapts flexibly to your needs. Perfectly matched to Fronius hybrid inverters, it integrates seamlessly into your photovoltaic system. Your data remains secure because it is stored exclusively on European servers. The proven Fronius Service & Support is always on hand to provide fast and reliable assistance for your entire system.
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 Flex wall box, 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.
European 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.
Fronius Reserva
Discover the highlights of the smart high-voltage battery
Additional information for installers
Technical data & Downloads
| Data | Reserva 6.3 | Reserva 9.5 | Reserva 12.6 | Reserva 15.8 |
| Usable capacity | 6,31 kWh | 9,47 kWh | 12,63 kWh | 15,79 kWh |
| Number of battery modules | 2 | 3 | 4 | 5 |
| Rated voltage | 204,8 V | 307,2 V | 409,6 V | 512 V |
| Voltage range | 185,6 ~ 227,2 V | 278,4 ~ 340,8 V | 371,2 ~ 454,4 V | 464 ~ 568 V |
| Maximum output current1 | 32 | |||
| Battery cell chemistry | Lithium iron phosphate (LFP) | |||
| Parallel operation |
up to 4 batteries |
|||
| Dimensions (height x width x depth) | 860 x 780 x 176 mm | 1100 x 780 x 176 mm | 1360 x 780 x 176 mm | 1610 x 780 x 176 mm |
| Total weight | 86,6 kg | 120 kg | 153,5 kg | 187 kg |
| Compatible inverters | Fronius hybrid inverter2 | |||
| Protection class | IP65 | |||
| Max. altitude above sea level | 2000 m | |||
| Ambient temperature range3 | -20 to +55°C | |||
| Permissible humidity | 5-95 % | |||