FroniusReserva 12.6
The Fronius Reserva 12.6 is a home battery with usable capacity 12.63 kWh, charge power (continuous) 12.1 kW and round-trip efficiency 95 %.1,2
Key figures
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SEAI home battery grant
UnknownA €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP2 |
| Performance | |
| Usable capacity | 12.63 kWh2 |
| Nominal capacity | 13.37 kWh1 |
| Charge power (continuous) | 12.1 kW2 |
| Discharge power (continuous) | 12.1 kW2 |
| Efficiency | |
| Round-trip efficiency | 95 %2 |
| Electrical | |
| Coupling | DC-coupled2 |
| Backup power | Yes2 |
| Dimensions & weight | |
| IP rating | IP652 |
| Min. operating temperature | -20 °C2 |
| Width | 772 mm2 |
| Height | 1,390 mm2 |
| Depth | 176 mm2 |
| Weight | 153.5 kg2 |
| Warranty & lifespan | |
| Warranted cycles | 6,0002 |
| Warranty | 10 years2 |
Manufacturer documentation
- Datasheet / specifications — The Fronius storage solution – V09 Sep 2026
External links to Fronius's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
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Frequently asked questions
What is the usable capacity of the Fronius Reserva 12.6?
The usable capacity of the Fronius Reserva 12.6 is 12.63 kWh.1,2
What is the charge power (continuous) of the Fronius Reserva 12.6?
The charge power (continuous) of the Fronius Reserva 12.6 is 12.1 kW.1,2
Sources
- CEC approved solar batteries (Australia) — Clean Energy Regulator (Australian Government), CC BY 4.0 · accessed 29 Sept 2026
- The Fronius storage solution, V09 Sep 2026 — Fronius International GmbH · accessed 29 Sept 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)