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Third Party Projects


NOX reduction through the establishment of an efficient low-cost charging infra­structure in Dort­mund, Schwerte and Iserlohn

The NOX-Block proj­ect aims to establish a substantial number of charging points in public, semi-public and private spaces in the three municipalities of Dort­mund, Schwerte and Iserlohn. To this end, the cities are working in cooperation with the ie³ with the respective local utilities and technology provider to set up a full-coverage low-cost charging infra­structure in conjunction with mobile metering. In public spaces, the focus will be on integrating the charging infra­structure into street lighting.

In the course of the long-term efforts to realise a CO2-neutral energy supply based on renewable energies (RE), the tasks for the distribution networks are changing. While the tasks of rural grids are changing, especially due to the addition of photovoltaic and wind energy plants, the electrification of the transport sector in combination with new, power-intensive consumers for heat gen­era­tion represents an enormous challenge for urban distribution grids.

Due to the capacity limits of individual equipment in the network, especially cables and transformers, only a limited proportion of the total available capacity can be allocated to a charging station. In addition, at peak times, i.e. when many electric vehicles (EVs) are charging simultaneously on the same grid, several areas of the grid can be overloaded. This change in power flows already creates load situations for which the electrical distribution networks were not designed.

The integration of the EVs into the distribution networks can result in considerable costs for the network expansion without a reasonable control. A charging concept that is as intelligent as possible is decisive for the comfort of the vehicle user and is therefore a decisive aspect for the success of electromobility. Therefore, a coordinated local interaction of vehicle, charging station and network is necessary for a reliable and optimal charging process.

In the foreseeable fu­ture, electric vehicles will replace conventional vehicles and charge them primarily in private and semi-public areas, whereby they will require 20% of the energy produced in fu­ture. The simultaneous power peaks of charging EVs occurring in this fu­ture scenario can overload the customer's system or even the local network. To protect the infra­structure, it is therefore necessary to control the power peaks. With intelligent charge control, the distribution network can be better utilised and expansion on the customer installation side as well as in the local network can be limited. A load management system can lead to a reduction of the simultaneity factor, which reduces the demands on the load capacity of the installation. Especially in buildings with several users, e.g. the basement of a multi-family house or a depot, a local load management system must be installed to avoid an expensive oversizing of the grid connection and the in-house electrical installation.

Such a load management system will be developed and installed within the frame­work of this proj­ect. On the basis of model-based grid simulations, different control concepts for intelligent grid management of the charging infra­structure will be developed.

Project Duration: 08.2018 – 09.2022

Project Partners:

  • Stadt Dort­mund, DEW21
  • Stadt Schwerte, Stadtwerke Schwerte
  • Stadt Iserlohn
  • Heimatversorger Stadtwerke Iserlohn
  •  TU Dort­mund, ie³ - Institut für Energiesysteme, Energieeffizienz und Ener­gie­wirt­schaft
  • BU Wuppertal


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Location & approach

The campus of TU Dort­mund Uni­ver­sity is located close to interstate junction Dort­mund West, where the Sauerlandlinie A 45 (Frankfurt-Dort­mund) crosses the Ruhrschnellweg B 1 / A 40. The best interstate exit to take from A 45 is "Dort­mund-Eichlinghofen" (closer to Cam­pus Süd), and from B 1 / A 40 "Dort­mund-Dorstfeld" (closer to Cam­pus Nord). Signs for the uni­ver­si­ty are located at both exits. Also, there is a new exit before you pass over the B 1-bridge leading into Dort­mund.

To get from Cam­pus Nord to Cam­pus Süd by car, there is the connection via Vo­gel­pothsweg/Baroper Straße. We recommend you leave your car on one of the parking lots at Cam­pus Nord and use the H-Bahn (suspended monorail system), which conveniently connects the two campuses.

TU Dort­mund Uni­ver­sity has its own train station ("Dort­mund Uni­ver­si­tät"). From there, suburban trains (S-Bahn) leave for Dort­mund main station ("Dort­mund Hauptbahnhof") and Düsseldorf main station via the "Düsseldorf Airport Train Station" (take S-Bahn number 1, which leaves every 20 or 30 minutes). The uni­ver­si­ty is easily reached from Bochum, Essen, Mülheim an der Ruhr and Duis­burg.

You can also take the bus or subway train from Dort­mund city to the uni­ver­si­ty: From Dort­mund main station, you can take any train bound for the Station "Stadtgarten", usually lines U41, U45, U 47 and U49. At "Stadtgarten" you switch trains and get on line U42 towards "Hombruch". Look out for the Station "An der Palmweide". From the bus stop just across the road, busses bound for TU Dort­mund Uni­ver­sity leave every ten minutes (445, 447 and 462). Another option is to take the subway routes U41, U45, U47 and U49 from Dort­mund main station to the stop "Dort­mund Kampstraße". From there, take U43 or U44 to the stop "Dort­mund Wittener Straße". Switch to bus line 447 and get off at "Dort­mund Uni­ver­si­tät S".

The AirportExpress is a fast and convenient means of transport from Dort­mund Airport (DTM) to Dort­mund Central Station, taking you there in little more than 20 minutes. From Dort­mund Central Station, you can continue to the uni­ver­si­ty campus by interurban railway (S-Bahn). A larger range of in­ter­na­tio­nal flight connections is offered at Düsseldorf Airport (DUS), which is about 60 kilometres away and can be directly reached by S-Bahn from the uni­ver­si­ty station.

The H-Bahn is one of the hallmarks of TU Dort­mund Uni­ver­sity. There are two stations on Cam­pus Nord. One ("Dort­mund Uni­ver­si­tät S") is directly located at the suburban train stop, which connects the uni­ver­si­ty directly with the city of Dort­mund and the rest of the Ruhr Area. Also from this station, there are connections to the "Technologiepark" and (via Cam­pus Süd) Eichlinghofen. The other station is located at the dining hall at Cam­pus Nord and offers a direct connection to Cam­pus Süd every five minutes.

The facilities of TU Dort­mund Uni­ver­sity are spread over two campuses, the larger Cam­pus North and the smaller Cam­pus South. Additionally, some areas of the uni­ver­si­ty are located in the adjacent "Technologiepark".

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