PCS family
PCS_a096_microGridOverLoaded
Charging interrupted - Powerwall energy level low
What does the PCS_a096_microGridOverLoaded alert mean?
The Power Conversion System (PCS) electronic control unit (ECU) detects the micro grid frequency significantly droops below the expected operating threshold, indicating the micro grid is overloaded.
What you'll see in your Tesla
- Charging interrupted - Powerwall energy level low
- Unplug handle - Retry when energy is available
What triggers it
The PCS ECU detects the micro grid frequency significantly droops below the specified threshold.
When it clears
AC charging is stopped.
Potential impact
AC charging will be unavailable to help reduce the load on the micro grid.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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