What EV charging networks teach you about protocol discipline

Every charge point vendor claims OCPP 1.6 compliance. In practice, each firmware interprets the specification slightly differently — heartbeat intervals, transaction message ordering, how a charger behaves when the backend disappears mid-session.

The network operator's job is to absorb this variance, not to pretend it away. Our charge point management layer keeps a per-firmware behaviour profile and tests every new model against a conformance suite before it joins the production network.

Load management is where engineering meets economics. A site's grid connection is a hard budget; smart allocation across simultaneous sessions is the difference between installing more chargers and installing more transformers.

These lessons shaped ChargeOS, our charge point management platform now in development. The specification is the starting point; the field data is the product.