Supervision systems for smart gas distribution networks are heterogeneous environments consisting of various types of systems. One of the key challenges is the exchange and the aggregation of data between such components. Although these systems of systems use standards to achieve a significant level of interoperability, centralized standard-based solutions do no fully address existing industrial issues. Based on the experience and developments realized in an industrial-academic French national project, this article proposes the use of model-based engineering principles to support interoperability between systems in order to achieve supervision goals. The proposed SmartHub, which distinguishes between configuration and operating data exchanges, is described through its application on two real-word industrial scenarios.