Home Battery Storage
Fox ESS PowerQ Stackable Battery
The Fox ESS PowerQ is a modular, fully integrated battery storage system designed for flexibility and scalability. It combines the inverter and battery in a single, space-saving unit, with stackable modules that allow capacity to expand as needed.
The PowerQ system starts from 9.84kWh and can be scaled up to 29.52kWh, enabling homeowners to grow their storage in line with energy usage or budget. This makes it well suited to maximising solar self-consumption and taking advantage of off-peak tariffs. For customers seeking greater energy security, the system also supports whole-home backup functionality when configured appropriately.
Key Features
Why the EVO AIO
Start Small, Scale Later
Begin with one 9.84kWh module and can be scaled up to 29.52kWh. Perfect for customers growing their heating or adding future zones.
Smart Charging Windows
Charges automatically during cheap electricity windows. Octopus Cosy and similar dynamic tariffs reward you for intelligent grid balancing.
Dramatically Lower Running Costs
Charge during cheap off-peak windows when the grid is powered by surplus renewables, then use that stored energy to power your heat pump.
12-Year Battery Warranty
Comprehensive 12-year protection on all battery modules and components, backed by Alto Energy's expert support team.
Cloud Monitoring
Real-time monitoring, energy analytics, and remote control via the FoxCloud app. Track charging, discharge, savings and optimise your tariff strategy.
4ms Off-Grid Backup
Seamless switching during power outages. Full house backup keeps heating and essentials running.
Product Range
All Units & Configurations
- Capacity: 9.84 to 29.52kWh
- Inverter Sizing: 3.7 / 5 / 8 / 12kW
- Warranty: 12 years