What are all of the different OCPP statuses and what do they mean?

There are 9 possible statuses in the OCPP specification. Here’s an explanation of what each one means:

• Available: No vehicle is plugged in to the port, and it's available for a new vehicle to plug in.

• Charging: The port is currently charging a vehicle.

• Preparing: The port is no longer available for a new vehicle to plug in, but charging has not started yet. There is often a delay between when a vehicle plugs in and when charging starts: this could be due to the charger getting ready, communication between the vehicle and charger, or waiting for payment or authorization.

• Finishing: Charging has ended but the vehicle is still plugged in, so the port is not yet available for another vehicle to use.

• SuspendedEVSE: A vehicle is plugged into the port, but the charger is not delivering any power due to a charger-related reason, for example charger power management settings or lack of authorization.

• SuspendedEV: A vehicle is plugged into the port, but the vehicle is not accepting power from the charger. This happens when the vehicle is fully charged, or when someone has configured the vehicle to stop charging at a certain threshold.

• Reserved: The port is currently reserved for a specific user or vehicle, so it will refuse to charge other users or vehicles.

• Unavailable: The port is not available for charging at this time. This status is often used to indicate the charger is awaiting maintenance or about to restart.

• Faulted: The port is currently experiencing a fault or issue. Depending on the charger, this can come up in various situations. Sometimes, it means that the charger won't be able to charge, but not always. If the faulted status includes a more specific error code, that may include more information about what is happening. In some cases, the fault can be resolved by resetting the charger, or unplugging the vehicle and plugging it back in.