With GO Services you can sign in with your GriegID and utilize the shore power system in supported ports. If you do not have a GriegID, you can easily sign up from the app. When the port has approved, you are freely to connect to the onshore power supply and start consuming.
If you provide services to vessels in port you can use GO Services to manage the work orders (order services or deliver them).
Port personell can see work assigned to them, start tracking task-progress, and finally mark the work as done.