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EV Charger Error

What Does Insufficient Grid Power Mean on an EV Charger?

Updated March 2026

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This is general guidance based on U.S. Department of Energy AFDC. Actual charger behavior varies by manufacturer and firmware version. Always follow on-screen instructions and contact the charging network if you are unsure. If anything looks or feels unsafe, stop charging and move away from the charger.

Warning

The electrical supply to the charger site is limited. The charger cannot deliver its full rated power because the grid connection does not support it right now. This can happen during peak demand hours.

Seeing this on the charger right now?

  1. Don't unplug while the charger is active. Wait for the screen to update.
  2. Try stopping and restarting the session from the charging app or RFID card.
  3. If the error persists, move to a different connector or charger if available.

Read the full explanation below, or scan the charger screen with EVcourse for instant help.

What to do

  1. Charging may still work but at reduced speed
  2. Try charging at off-peak hours when grid demand is lower
  3. Move to a different charging location if speed is too low
  4. This is a site infrastructure issue, not your vehicle's fault

Technical details

Error code
InsufficientGridPower
Category
Electrical
Classification
maintenance
Source
Based on data from U.S. Department of Energy AFDC. EVcourse is not affiliated with U.S. Department of Energy AFDC.

Related charging terms

Understanding these terms can help you troubleshoot this error:

Seeing this error at the charger?

Drivers can verify this specific error by scanning the screen with EVcourse. The app reads any charger display, any language. Free to try on iOS.

Get the app

Other errors

From Finn, engineer: This error code is part of the ChargeX MREC standard used across public charging networks. Always follow the instructions on the charger display. If the error persists, contact the charging network's support line or try a different charger.

The EVcourse app provides instant troubleshooting and expert explanations at the charger. Scan any station or car screen for step-by-step help, free to start on iOS.

Don't understand the screen? Scan it.

Point your phone at any charger or car screen for instant help. Any brand, any language. Free to try on iOS.

Free to try on iOS. Android coming soon. Join the Android waitlist.