Key points in this article
What interoperability means
After building 'many stalls', the next step is 'connected'. In China's charging standards, the grid-interaction and operations track already has 14 national/industry specs covering grid coordination and platform interoperability, a normative basis to fix the pain of 'many stalls but hard to interconnect, many apps to find one'.
Like 'e-Lu Tong' for cities
Interoperability's core is letting different operators' stalls share data and payment: one platform shows multi-brand idle status, price and state, ending 'information islands'. This echoes the highway 'e-Lu Tong' publishing live stall status—integrating scattered resources into one queryable, dispatchable web.
Yantai's local web
For Yantai community shelters, interoperability is also the direction. Dongdian Huichong's unified build-manage-operate gathers scattered estate stalls into one locally queryable, dispatchable web, so residents need not switch between entries—doorstep refuel info is clear at a glance.