Battery Storage Expansion with Fox ESS, From 8kW to 20kW Capacity
We recently completed an upgrade for an existing customer who wanted to expand their energy storage after experiencing the benefits of their original installation.
The system was initially installed with 8kW of Fox ESS battery storage, delivering excellent performance in reducing grid reliance and improving self-consumption of solar generation.
As the customer’s energy demands increased and they looked to further future-proof their property, they decided to expand to a full Fox ESS battery stack, increasing total storage capacity to 20kW.
This upgrade now provides:
- Significantly increased energy storage capacity
- Enhanced resilience and backup capability
- Greater utilisation of renewable energy on-site
- A scalable system designed to grow with demand
The before and after images highlight the progression from the original installation to the completed full-stack configuration.
At the design stage, we always consider future expansion, ensuring systems can be upgraded efficiently as customer needs evolve.
If you’re planning a new installation or considering expanding an existing battery system, feel free to get in touch to discuss practical, scalable energy storage solutions.

