The eRoaming platform connects various charging-station operators and enables reciprocal billing. Customers of one of the linked companies can charge their electric vehicles at points operated by many other companies. It works with standard protocols and interfaces. This simplifies the connection, which is already supported by numerous systems.

When charging stations are available both to their own customers as well as to those of other providers, they enjoy improved capacity utilization and profitability. Various mobility services and providers – such as car sharing, bike sharing, public transportation, and parking-facility management – can also be connected using the eRoaming platform.