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Car park of the future

A new mobility and energy concept in the multi-storey City Car Park in the oldest city in Germany is out to set new standards. An e-charging station, a photovoltaic system and a redox Red stands for reduction = gain of electrons, while Ox stands for oxidation = loss of electrons flow storage device are all part of the concept with which Trier Municipal Utilities is set to demonstrate what the autonomous car park of the future looks like.

The EU Commission estimates that traffic emissions will have to be reduces from 54% to 67% by 2050 compared to 1990 in order to achieve the European CO2 targets within the transport sector. This requires sustainable mobility concepts and these are already in the pipeline under the auspices of the smartlab Innovationsgesellschaft, a subsidiary of the Municipal Utility Companies of Aachen, Duisburg and Osnabrück, within the framework of the “econnect Germany” research project. Eight industrial partners, four universities and seven municipal utility companies from all over Germany have come together in this research collaboration. The total funding for the projects amounts to 23 million Euros, whereby partners from research and development will be bundled together at each location of the municipal utility companies involved, each dedicated to a different topic. These range from intelligent traffic applications for e-mobility (Smart Traffic) to the integration of e-mobility into the intelligent grid of the future (Smart Grid).

An innovative approach at it was chosen by the Trier Municipial Utilities (SWT). In their “Car Park of the Future” the Utility intends to use the electricity generated by wind turbines and solar power stations as clean “fuel” for electric cars. Around 127,000 kWh A kilowatt hour (kWh) is the amount of energy equivalent to powering one kilowatt (1 kW) for one hour (1 kW x 1 hour). Accordingly, there are megawatt hours (1 MWh = 1000 kWh) gigawatt hours (1 GWh = 1000 MWh = 1 million kWh) and terawatt hours (1 TWh = 109 kWh = 1 billion kWh). 1 kilowatt hour of electricity is equivalent to 17 hours of light from a 60 watt bulb. a year are to be generated by a photovoltaic system installed on the roof that has a surface area of 990 m². This clean electricity can be buffered in a storage system depending on demand and solar radiation. The aim is to supply the charging poles of a local e-charging station with renewable electricity directly from the roof. The Trier energy company is cooperating with the University of Applied Sciences Trier, the University of Trier and ABB Germany to work on the technical realization. “The aim of the project it to make e-mobility fit for the future,” explains Falko Willmes, project manager at SWT. The stakeholders´ intention is to deliver “just-in-time” energy. In other words when electricity is needed at the charging pole, it should be produced renewably at the appropriate time.

GREEN ELECTRICITY EVEN WHEN THE SUN IS SHINING

Under the project title „From wind turbine to electric car“, the researchers are currently developing a virtual integrated energy system comprising generator plants, energy storage systems and consumers. They want to develop a management system that records all consumption and generation data online, data such as feed-in volumes of a photovoltaic system in connection with the consumption behavior of a household customer for example. A CellCube FB 10-100 from GILDEMEISTER energy solutions serves as a storage device. The vanadium Vanadium is a chemical element with the symbol V and atomic number 23. This steel-grey, bluish shimmering transition metal is mined as ore and used mainly in steel construction. Vanadium can be recovered as a by-product of energy production from coal-fired power plants and by burning heating oil. It is non-flammable, providing high level of safety and, thanks to its full-reusability, has a high residual value. redox Red stands for reduction = gain of electrons, while Ox stands for oxidation = loss of electrons flow storage device is installed next to the first e-charging station in the City Car Park in Trier´s city centre. On the ground floor of the multi-storey car park customers and project participants can fill up their cars with environmentally-sound green electricity – thanks to the vanadium Vanadium is a chemical element with the symbol V and atomic number 23. This steel-grey, bluish shimmering transition metal is mined as ore and used mainly in steel construction. Vanadium can be recovered as a by-product of energy production from coal-fired power plants and by burning heating oil. It is non-flammable, providing high level of safety and, thanks to its full-reusability, has a high residual value. redox Red stands for reduction = gain of electrons, while Ox stands for oxidation = loss of electrons flow storage system they can even do it when there is no sun and no wind. “In our opinion, today´s storage possibilities are not sufficient for the future. That is why we are planning a pumped-storage power plant on the river Mosel and are also looking for a solution that will enable us to use energy in the short and medium-term quickly and de-centrally, so we can stabilize and relieve local grids, for example, “ Willmes explains.
According to Willmes, the CellCube is the ideal solution for the project, because as the name „econnect“ suggests, the aim of the project funded by the Federal Ministry is the integration of e-mobility by means of information and communication technologies (ICT). Generators must be able to communicate with the installations in the grids. The storage device uses standard protocols for communication, and that makes the data connection really simple. It took less than a day to connect the storage device to the control system. The CellCube also scored points with the people in Trier thanks to its flexibility, long service life and ease of handling. “We can switch from charging to discharging mode quickly and can expand the system simply with additional CellCubes without having to change the control. Low-maintenance and a high level of efficiency were also among the features that convinced us,” says the SWT man.
The redox Red stands for reduction = gain of electrons, while Ox stands for oxidation = loss of electrons flow storage device also serves other research purposes for the project participants. Although optimization of our own requirements under the motto “How self-sufficiently can we operate the car park?” plays a key role, topics such as the reloading of car batteries into the grid and to what extent storage systems can contribute to grid stability in future should also be researched. Another crucial factor for the decision to take the CellCube on board was the performance of the storage system. “The storage density and response behavior are similar to the performance of our planned pumped-storage power station,” says Willmes. “In this way we can test whether the software we are developing here can also control the pumped-storage power station.”

Find information about the car park of the future here

Published November the 8th in e21.magazin

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