E.ON introduces bidirectional charging

The E.ON pilot project Bi-clEVer shows that electric car drivers could save up to €920 per year through bidirectional charging. This cost saving results from the combination of the use cases vehicle-to-home (energy from the vehicle battery is used at home) and vehicle-to-grid (energy from the vehicle battery is fed into the power grid). The participating pilot customers, as well as a digital twin, also provide relevant insights into the decarbonisation potential of the smart charging mode and the preferences of users.

In addition to the bidirectional charging savings, E.ON also estimates that owners of a solar system and a bidirectional set-up can save up to 420 euros per year by maximising their own solar power consumption and making targeted use of dynamic electricity tariffs. The savings would be achieved by minimising the purchase of electricity from the grid and by purchasing energy in a cost-optimised manner during favourable time windows and temporarily storing it in the car for later consumption.

According to E.ON, the project also shows that a degree of self-sufficiency of up to 51 per cent per year can be achieved with a solar system and a bidirectionally used electric car with a 42 kWh battery. This takes into account not only the household’s energy requirements, but also the power needed for driving the electric car. With an additional battery storage system, the degree of self-sufficiency of the pilot users can even be increased to up to 59 per cent

“In the future, trading in electricity from the electric car could also generate income of up to 500 euros per year. In future, we are working towards users buying energy at times when electricity prices are particularly favourable and storing it in their e-car in order to sell it at a later date and feed it back into the grid at the right time – this process is automated. In this way, e-car drivers provide the market and the grid with valuable flexibility by supplying sustainably generated energy when less of it is available on the market,” says Jens Michael Peters, Managing Director for Energy Solutions and Electromobility at E.ON Energie Deutschland.

“At the same time, monitoring the energy flows showed that providing such large amounts of energy from the vehicle battery is not necessary in order to utilise economically attractive applications,” explains Mark Ritzmann, CEO of E.ON Group Innovation. “As E.ON, we see enormous potential in the further development of bidirectional charging technology, which not only harbours far-reaching benefits for customers, but also offers enormous opportunities for the entire future energy system through the intermediate storage of energy.”

Source: Info via email