Porsche: Taycan as buffer storage

Porsche has tested the integration of electric cars as buffer storage for the power grid with cooperation partners. Five Taycans were used for the tests.

A growing number of car manufacturers are testing the use of their electric cars as electricity storage devices in order to relieve grids and make energy from renewable sources more usable. Porsche also sees great potential here. In a field test, the car manufacturer, in cooperation with the transmission system operator TransnetBW and the consulting firm Intelligent Energy System Services (IE2S), is not testing an individual solution with a car as part of a networked household, but a swarm solution.

Five Taycans as a virtual power plant

With V2G (vehicle-to-grid, from the car to the grid), the energy in the battery of a Porsche Taycan, which offers up to 83.7 kWh net usable capacity depending on the version, can be fed into the power grid become. To do this, the car is connected to the Porsche Home Energy Manager (HEM), which is available as an accessory from the brand. A total of five standard Taycans were used in the pilot test, with which a "virtual power plant" could be presented. This should compensate for possible fluctuations in the power grid. With the help of several electric vehicles, a larger amount of regeneratively generated electricity, for example in windy weather or long sunshine, can be stored and retrieved from the batteries if necessary.,

Better use of green electricity

Lutz Meschke, Deputy CEO and Chief Financial Officer IT of Porsche AG, explains: "Such a pooling system can not only be used for the balancing power market. Extended solutions for green charging and other vehicle-to-grid applications are also conceivable. In addition: If electric vehicles in the future use electrical energy, for example fed back into the grid from private photovoltaic systems and thus contribute to the expansion of regenerative energy, this further increases the acceptance of e-mobility."

As part of the test, the pooling system with the five Porsche Taycans was connected to the main switching station of TransnetBW in Wendlingen near Stuttgart. There were no problems communicating between the individual components within this complex infrastructure. The charging processes were monitored and adjusted in real time via a cloud-based system. Further test runs, also from other car manufacturers, are likely to follow. This allows vehicles in the age of electromobility to be integrated much better into the energy cycle than was ever possible with combustion engines.,

Conclusion

Together with cooperation partners, Porsche has tested ways of using the batteries of electric cars as buffer storage. Five Porsche Taycans were connected to the power grid. The first results are promising.

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