Roaming hub

A platform that connects many operators and service providers, each through one connection.

Explained in

EV charging fundamentals · Stop 03What happens after you tap your card?Follow one tap from the card reader to the operator's backend and, for another company's card, across the roaming route and back. OCPP and OCPI in action.

Connecting every company directly with every other would take thousands of separate links. Roaming hubs reduce that: one connection reaches many partners, and many companies add direct links to their most important ones. The same connections later carry the session record that becomes the invoice at stop 5.

From “Why roaming exists”, stop 03
  1. RoamingCharging in another company's network with your own card or app.
  2. OCPPOpen Charge Point Protocol: the open protocol between a charger and its operator's backend.
  3. OCPIOpen Charge Point Interface: an open protocol for roaming between operators and e-mobility service providers.
  4. OICPOpen InterCharge Protocol: the roaming protocol of the Hubject platform.