As seen on Open Homes Australia Season 4 and Australia’s Best House Season 3
As seen on Open Homes Australia Season 4 and Australia’s Best House Season 3
The Fronius Reserva is due to arrive in Australia late 2025 – and it’s a smart, reliable option for homeowners looking to get more out of their solar. If you already have a Fronius inverter (or you’re planning on one), the Reserva is the ideal DC-coupled, high-voltage solar battery to complete your system.
Built to work seamlessly with the Fronius GEN24 Plus hybrid solar inverter, it’s safe, scalable, and designed for long-term performance. Whether you’re after dependable backup power, greater energy independence, or just want to reduce your energy bills – the Reserva solar battery makes a solid addition to any solar power system.
Fronius is ISO 27001 certified and undergoes regular audits by leading cybersecurity firms, with all software developers trained in secure coding practices. It’s enterprise-grade security—applied to your home energy system.
Model | Usable Capacity | Modules | Voltage Range | Dimensions (H×W×D) | Weight |
Reserva 6.3 | 6.31 kWh | 2 | 185.6–227.2 V | 860×780×176 mm | 86.6 kg |
Reserva 9.5 | 9.47 kWh | 3 | 278.4–340.8 V | 1100×780×176 mm | 120 kg |
Reserva 12.6 | 12.63 kWh | 4 | 371.2–454.4 V | 1360×780×176 mm | 153.5 kg |
Reserva 15.8 | 15.79 kWh | 5 | 464–568 V | 1610×780×176 mm | 187 kg |
Battery type: Lithium Iron Phosphate (LFP)
Protection rating: IP65 – suitable for indoors or protected outdoor areas
Operating temp: -20°C to +55°C
Monitoring: Fully integrated with Fronius Solar.web
Warranty: 10 years.
“Longevity is particularly important to us at Fronius. We therefore guarantee that the Fronius Reserva will still deliver at least 80 percent of its usable energy after ten years from the start of the warranty.”
Looking to install a solar battery in Brisbane? With power prices climbing and feed-in tariffs dropping, it’s now smarter than ever to store your solar energy. But with several strong options on the market, which home battery is right for your solar system? Here, we compare the Tesla Powerwall 3, BYD Battery-Box, and Fronius Reserva – three leading battery solutions for Brisbane homes.
Have a three-phase home? Tesla Powerwall 3 isn’t ideal – it can only back up one phase unless you install three units. BYD and Fronius Reserva both offer true full-house three-phase backup when paired with a Fronius GEN24 inverter.
Prefer fast and seamless blackout protection? With Tesla Powerwall 3, your lights won’t even flicker. BYD and the Fronius Reserva have a slight delay for the Fronius GEN24 inverter to conduct checks.
Need to comply with dynamic export limits (e.g. Energex rules)? Tesla Powerwall 3 currently falls short here. BYD and Fronius offer smarter export control for local networks.
Looking for future-proof modularity? Tesla has 13.5kWh expansion packs which means a higher outlay per upgrade. Both BYD and Fronius Reserva let you scale your system with smaller modules which allows greater flexibility.
The Tesla Powerwall is made in the USA. BYD is made in China. The Fronius Reserva is also manufactured in China, but with a key distinction:
“We have taken extreme measures to ensure we align with a reliable partner that upholds our high expectations for quality.”
All design, servicing, and data is controlled by Fronius in Europe, meaning:
European data security standards
Data hosted on EU servers
Ongoing support from Fronius Australia
As of now, official pricing for the Fronius Reserva hasn’t been released. Fronius Australia has confirmed:
“As soon as the official release date is announced, you can contact your Fronius installer to receive more information on pricing.”
✅ Go Tesla Powerwall 3 if you want lightning-fast backup, a seamless app experience, and have a single-phase home.
✅ Choose BYD Battery-Box if you need three-phase support, export flexibility, or a highly configurable system.
✅ Consider Fronius Reserva if you already use (or plan to install) a Fronius GEN24 inverter – it’s purpose-built for this combo.
At MC Electrical, we only install what we’d use on our own homes. Our team has hands-on experience with all three systems – and we’re here to help you find the right solution.
📞 Contact us today to get a personalised solar battery recommendation.
Visit our showroom in Eagle Farm, Brisbane and discover what’s possible for your property.
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