Battery storage
Modular battery storage from Sofar, Fox ESS and GoodWe — from single-module homes to large expandable stacks.
Sofar · Fox ESS · GoodWe
All batteries

Sofar
BTS 5K
BTS E5-E20-DS5 modular battery
- Module Energy
- 5.12 kWh
- Configuration
- Up to 4 modules
Key features
- Store for up to 2 years without charging
- Pre-wired cables for plug-and-play installation
- All-weather performance, suitable for outdoor installation
- Expandable capacity by mixing new and existing batteries
- Active battery balancing to 100% SoC in 2 hours
- Advanced 5-layer safety system
- Fully modular design, convenient for installation and transportation
- One-button startup/shutdown with low standby consumption

Fox ESS
CQ7
High-Voltage Storage Battery
- Energy Range
- 13.92–97.44 kWh
A high-performance, scalable battery storage system. The modular design allows for maximum flexibility, making it suitable for a broad range of storage applications.

GoodWe
ESA Series
All-in-One Storage (HV), Single & Three Phase
- Power (Single-Phase)
- 3–10 kW
- Power (Three-Phase)
- 5–30 kW
- Storage Capacity
- 5–108 kWh
- MPPTs
- 2–4
A fully integrated all-in-one solar and storage solution combining inverter and battery in a pre-wired, modular design, available in single-phase and three-phase versions. Mixable battery modules expand up to 48 kWh per stack on single-phase systems and up to 108 kWh on three-phase systems, with UPS-level whole-home backup, 6-layer battery protection and AI-driven AFCI 3.0.
Not sure what fits your roof?
Tell us about your roof and energy use, and we will match the right combination of components — with a free quote.