23/08/2026
Outage resilience is turning into a specification item, not a bonus feature.
In most residential storage systems the constraint is architectural. Cells sit in one series string, so usable capacity tracks the weakest unit — and a single module fault can take the whole system offline, precisely when the household needs it most.
The HP 900K Ultra gives every module its own DC-DC converter and BMS. Each module charges and discharges to its own state of health, and a faulty one is isolated at module, cluster or tower level while the rest carry on supplying. Degraded operation instead of shutdown.
One tower: up to 54.3 kWh across six modules, 82 × 31 cm of floor, IP66, installed outdoors with no plant room. Up to eight towers in parallel, 432 kWh.
Engineered to IEC62619 and IEC62477; certification in progress.
We are currently speaking with distributors and installers across Southeast Asia and Europe.