Learning path · One charging card at a charger abroad

OCPI and roaming

Follow one card through an afternoon at chargers abroad, and understand how operators and providers exchange locations, tokens, tariffs and session records.

8 stops · about 49 min · Intermediate, builds on ev charging fundamentals · 0 of 8 done

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What you will understand

Trace a roaming session between two companies, from the token to the settled CDR.

  1. Stops 01 · 02

    Roaming

    Two roles, and why they connect directly or through hubs.

  2. Stops 03 · 04

    OCPI modules

    What flows before, during and after a session.

  3. Stops 05 · 06

    Price and record

    Tariff dimensions, two prices, and the CDR.

  4. Stop 07

    In practice

    Where roaming creaks, and how partners keep it small.

Stop 08 brings it together: One session abroad, fully understood. Then the final assessment and a verifiable certificate.