UdZ 2-2012

24 Unternehmen der Zukunft 2/2012 UdZ Informationsmanagement FINSENY: Future Internet for Smart Energy ICT Requirements for Future Internet-based E-Mobility Overview and Motivation In order to maintain a stable and reliable po- wer supply in the coming years, a large scale introduction of electric vehicles will need to be accompanied by the introduction of novel ICT (Information and Communication Technology) functions and infrastructure elements to balance supply, demand, and storage in Smart Grids. Therefore, FINSENY’s objective is to identify and investigate ICT requirements which the Future Internet can cope with. The requirements are derived from most prominent E-mobility use cases and a functional architecture is designed conforming to these requirements. Core con- cepts of the functional architecture are tested in pilots (phase 1) and potentially in early trials (phase 2) and large scale trials (phase 3) in Smart Grids all over Europe. One of the use cases is E-Roaming which is described in more detail in following manner. E-Roaming The usual parking spaces of car owners may be either a determined parking space or a random parking location such as a curbside somewhere nearby. In locations away from the determined parking spaces (e.g. when travelling longer distances), EV owners rely on foreign charging infrastructure. In order to use foreign charging infrastructure physical access, authentication, authorization and accounting (AAAA) is nee- The Public Private Partnership (PPP) initiative „Future Internet“ derives requirements and develops an architecture for the future of the internet from innovative use cases in several domains (e.g. Environment, Energy, Logistics, City Safety, Web Content, Agriculture). The goal is a comprehensive information and communication technology (ICT) architecture which shall afterwards be tested in a pan-European trial. Alcatel-Lucent and FIR collaborate intensively with key actors from telecommunication and energy sectors within the project FINSENY (Future INternet for Smart Energy). Roaming in foreign charging infrastructure (E-Roaming) is of major importance for the E-Mobility scenario. The envisaged ICT architecture must meet requirements like the definition of basic identifiers (IDs) and adequate support for access, authentication, authorization and accounting (AAAA). Projekttitel FINSENY Projekt-/ Forschungsträger EU Commission – DG Information Society and Media Förderkennzeichen 285135 Projektpartner 33 European companies in the domains of ICT and Energy Ansprechpartner Dipl.-Inform.Wirt Jonas Fluhr Internet www.fi-ppp-finseny.eu ded. EV owners parking curbside need foreign (public) charging infrastructure every day. On the other hand, car sharing companies can install electric vehicle supply equipment (EVSE) with individual methods for AAAA at the de- termined car sharing parking spaces. Enabling recharging not only at those own determined parking spaces, but also at foreign charging infrastructure via AAAA is a fundamental step to success. E-Roaming refers to the situation in which an EV User is using an EVSE within a contract with an E-Mobility Provider that is not the EVSE Operator of the used EVSE (cf. Roaming Figure 1). No Roaming is necessary, if the E-Mobility Provider is at the same time the EVSE Operator (cf. Homing Figure 1). Due to the still prevailing regional and local character of many power markets (e.g. in Germany), roaming is likely to become not only an international phenomenon, but also to be available locally for example within a town or street. Having a contract with every single EVSE Operator is very uncomfor- table. Hence, mechanisms enabling AAAA for roaming are inevitable. In order to guarantee a user-friendly E-Roaming experience, there are several challenges to cope with [1]. Paying cash or via credit card is uncomfortable and requires higher investments in EVSE in comparison to an adequate contractual based user identification. There is a clear commercial need for the definiti- on of selected identifiers (IDs) that can be used throughout ICT systems of involved companies. For E-Roaming, the distinction of intra-company and inter-company IDs (henceforth called uni- form ID) is essential. Two schemes were recently defined as Contract ID and EVSE ID [2]; both are available for international use [3]. Status and outlook E-roaming requires significant standardization efforts in Europe. Yet, there are some challenges Bild 1: E-Mobility Roaming EVSE = electric vehicle supply equipment