In many cases, yes, though it depends on the battery brand, the inverter setup, and how the original installation was configured.
Existing GivEnergy systems — EPS functionality can often be added with the correct additional hardware, provided the rest of the setup supports it.
Existing Tesla Powerwall systems — Backup capability is part of the Powerwall proposition, but we still need to confirm how the system was installed and whether the required components are already in place.
What we check first: - The battery and inverter model - The distribution setup and consumer unit arrangement - Whether the current installation can isolate safely from the grid - Whether you want whole-home or essential-circuit backup
Retrofitting is often worthwhile — Especially in properties where outages have become more frequent or more disruptive than expected.
We can assess the existing battery installation and tell you what is possible, what hardware is required, and whether the upgrade makes financial sense.