Network choice on a long trip is less about loyalty and more about which operator runs reliable hubs on your specific corridor. A few worth knowing in each market.
In the UK, Gridserve Electric Forecourts (Braintree, Norwich, Exeter) and InstaVolt sites cluster on the major arterials with 8–36 stalls per site and high reliability — they're worth a small detour for redundancy. Tesla Supercharger access for non-Teslas has opened at most UK sites; the Tesla app shows live availability and the per-kWh rate is often the cheapest rapid option in the country at peak times.
In France, Ionity dominates motorway aires with 350 kW stalls every ~150 km on the A-roads. TotalEnergies stations on the same network are usually cheaper. Tesla Superchargers are open to non-Teslas across most of France and remain the most reliable single-operator option. For a Paris→Marseille run, you'll likely mix all three.
In Italy, Enel X Way and Be Charge cover the autostrada with 150–350 kW hubs at most Autogrill stops between Milan, Bologna, Rome and Naples. Free Vinci Autoroutes-style toll-card integration is rare; bring a contactless card. Ionity covers the same corridors with sometimes-pricier rates but the broadest non-Italian-app acceptance.
In Australia, the east-coast spine from Cairns down to Adelaide is well-covered by Evie Networks and Chargefox at 150–350 kW. Tesla Superchargers are increasingly open to non-Teslas around Sydney, Melbourne and Brisbane. Inland and west-coast routes still have gaps — plan with extra backup margin, especially between Adelaide and Perth.