The project Netz_eLOG develops methods for an intelligent network integration of the electrified transport sector.
The project Netz_eLOG develops methods for an intelligent network integration of the electrified transport sector.
( Source: DPDHL)

Netz_eLOG Intelligent grid integration of electrified logistics

Editor: Florian Richert

Deutsche Post's research project Netz_eLOG with more than 60 street scooters is investigating the flexibility potential of electric fleets and the possibilities of intelligent grid integration.

An extensive practical trial with 63 StreetScooters WORK XL at a distribution center of the Deutsche Post DHL Group (DPDHL) in Kleinmachnow near Berlin will test for the first time the control of charging processes from network operators. The aim is to develop procedures for intelligent network integration of the electrified transport sector.
Within the project "Intelligent Network Integration of Electrified Logistics" (Netz_eLOG), the research consortium is developing methods for intelligently combining the supply and demand of energy for three years. Besides the consortium leader Reiner Lemoine Institute (RLI), the consortium consists of the engineering partner IAV GmbH and E.DIS Netz GmbH. DPDHL is an associated partner in the project.

Flexibility potentials become more and more critical through renewable energies

The storage units installed in electric vehicles offer enormous flexibility potential, which is becoming increasingly important for grid operators as the volatile feed-in of renewable energies increases.
"We want to intelligently link the demand for electricity from electrified transport with the production of electricity from renewable energies in the most intelligent way possible," explains Oliver Arnhold, head of the RLI research area Mobility with Renewable Energies. "Fleet operators have so far had little incentive to take grid-side criteria into account when charging their vehicles. An important part of the project is, therefore, the workshops planned in the project for the development of economic incentive models. We invite all stakeholders to participate in this process".
Robert Frase, Head of Department in the Thermodynamics & Power Systems unit at IAV: "Controllable grid loads are elementary to avoid grid bottlenecks caused by the increasing use of electromobility. In the Netz_eLOG project, we are bringing together all the interfaces and developing an interoperable software solution that controls an optimum grid load and ensures that the fleet is charged in line with demand". Here, in addition to the primarily logistical criteria of the fleet operator, the requirements of the network operator must also be integrated into the control of the loading processes.

The amendment of the Network Expansion Acceleration Act (NABEG 2.0) will make re-dispatch measures possible from October 2021 for generation plants with an output of 100 kW and remotely controllable plants, thus strengthening the role of the distribution network operators. In the future, this will also include large electric vehicle fleets. In the "Redispatch 2.0" project, BDEW is working on an industry solution for implementing the legal requirements of NABEG 2.0. The Netz_eLOG project offers the opportunity to test these future requirements in advance using the example of a large electric fleet.
Harald Bock, Managing Director of E.DIS Netz GmbH, explains: "In the research project we can already develop and test in real operation processes. These are crucial for the coming market ramp-up and to ensure that electric mobility will contribute to grid stability in the future."

Simulation model allows analysis of different locations and scenarios

In Netz_eLOG, the focus lies on the development and testing of the software in real-life operation. Besides, various scenarios are simulated, such as the use of local renewable energies or stationary battery storage. Also, transferability scenarios will investigate the application to other traffic areas, such as public transport, the housing industry, or P+R car parks. The investigations aim to enable network operators to assess the flexibility options for a specific location as well as for the broad application of intelligent charge control and to incorporate this into future network planning.
The Federal Ministry funds Netz_eLOG for the Environment, Nature Conservation and Nuclear Safety (BMU) as part of the "Renewable Mobile" funding program. The coordinator is the VDI/VDE-IT.

This article was first published in German by