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ToU internal errors: INTERNAL BATTERY

Written by Maximilian Kraft

Errors

INTERNAL_BATTERY_UNCONTROLLABLE

Cause of issue

Battery is in an error state, therefore we receive the constraints for maxActivePower and minActive power as 0, which makes it infeasible to steer the battery.

Assets showing the errors

  • Enphase, Envoy S

  • Sungrow SH10.0RT-V112

  • Sungrow SH10.0RT-20

  • Sungrow SH8.0RT-V112

Manual action to resolve the error

Delete the battery from the asset list and trigger a rescan. This might resolve the issue for the single system

Status

Update 15.05.2025:

Resolved. If the asset reports an OEM error, we now report that there is an OEM error state. Otherwise, this is usually due to no battery being attached to the inverter or the battery being offline momentarily. In that case, we now show a warning and ignore the battery asset, which means that ToU still steers any other assets.

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