Porsche, the transmission system operator TransnetBW and the consulting firm Intelligent Energy System Services (IE2S) have connected five Porsche Taycans to the power grid as buffers - under laboratory conditions, but also in a domestic environment.
Porsche emphasizes in the announcement that the five Taycans are standard production vehicles. As a spokesperson explains when asked by electrive.net, the test was not yet about bidirectional charging, but load-dependent control from the grid to the car. "Vehicle to Grid is conceivable in the future, however - with appropriate modifications to the Taycan," the spokesperson says.
The technical modification for the test did not take place in the vehicle, but in the so-called Porsche Home Energy Manager (HEM), which is already offered today as a control center for home energy systems. Experts from Porsche Engineering adapted the software of the HEM for the field test.
The vehicles themselves were connected via the Porsche Mobile Charger using a type 2 cable; on the infrastructure side, the mobile wallbox was connected to the grid via a CEE socket. The new software in the Home Energy Manager was used to combine the five vehicles into a pool whose power can be regulated as in a virtual power plant - currently, as mentioned, only in one direction. In other words, if the power demand in the local distribution grid is higher than the feed-in and the grid stability is thus endangered, the control power of the virtual power plant can be reduced - the HEM then regulates the charging power of the connected vehicles accordingly.