A main factor limiting the driving range of Electric Vehicles (EV) is lack of interoperability in existing infrastructure and services related to electro-mobility, such as charging infrastructure. E-mobility actors currently have to deal with a broad spectrum of EV charging system hardware, service providers, standards and protocols, which can vary greatly from a technological perspective. The technological volatility, together with the lack of universal standards, often limits the EV charging options, particularly for users travelling longer distances.

E-mobility is also faced with the challenge of the impact on the electric grid network caused by increasing EV numbers but also by new charging technologies. The main issue is to define and deploy a smart way to manage EV recharging. The e-mobility ecosystem is not connected to the grid in a sustainable way, and yearly power subscriptions (current business model used by Charge Point Operators (CPOs) can lead to expensive service pricing.

A major challenge in providing a seamless experience and easy service are the complex data structures and different formats in exchanged information. The set-up of a pan-European charging infrastructure is currently hindered by the lack of a common data and information model and the lack of common framework for commercial agreements.

The lack of interoperability gave rise to the recent concept of electro-mobility roaming platforms, often called e-roaming or eRoaming. The problem of interoperability between platforms still remains. In order to tackle this, the pan-European eRoaming initiative was announced in 2015 and its objective, namely the interconnection of existing eRoaming platforms, is one of the tasks within the NeMo project to improve electro-mobility services.