Home Battery System · Battery (LiFePO4) · 25 dB
sonnenCore+ 10 kWh
A floor-standing cabinet that combines a 4.8 kVA inverter and 10 kWh of LFP in one indoor unit, with a 20 kWh variant (SCORE-P20) and stacking to 60 kWh across three systems. The spec sheet gives a noise emission under 25 dB, so it can sit in a garage or utility room without being heard, which is its best selling point against fan-cooled rivals. Backup power is the soft spot: 4.8 kVA continuous, with a 5-second surge of 8,640 W (36 A at 240 V), so a central air conditioner needs a second cabinet or a load-managed panel. Round-trip efficiency peaks at about 85%, below most rivals. Installers are scarce, and sonnen publishes no price; $9,500 is the sonnenCore's hardware launch price, and installed jobs commonly land between $12,000 and $18,000.
4,800 W / 8,640 W surge · up to furnace blower, sump pump or a window AC
- capacity
- 10,000 Wh
- expands to
- 60,000 Wh
- Transfer switch
- transfer-switch ready
Best for Homes that want a silent indoor battery on a modest essentials panel, or buyers in sonnen's virtual power plant programs.