Duration: 1 July 2009 to 30 September 2011

The GridSurfer project focussed on electromobility in EWE's supply area between the Ems, Weser and Elbe rivers in northwest Germany. This rural region poses specific challenges for electromobility, but also offers great potential due to the very high proportion of renewable, fluctuating energy generation. The concept of the GridSurfer project takes this special, inter-urban constellation into account.

A central aspect of the OFFIS project was the development of a flexible research platform for the system simulation of scenarios in low-voltage grids, including the growing penetration of electric vehicles. Beyond the typical limitations of a field test, simulations of user behaviour were carried out and specific grid structures were examined in selected type grids. This enabled electrical effects in the grid to be identified and strategies for grid development and expansion as well as new tariff and business models to be developed. The simulation model developed allows the investigation and assessment of different scenarios for the integration of electric vehicles with regard to economic, environmental and grid-related objectives. In particular, scenarios were analysed that are designed to reduce CO2 emissions by integrating a V2G concept with feed-in from PV systems.

The project was carried out in co-operation with EWE AG and BTC AG with funding from the BMWi as part of the GridSurfer network.