If, for example, there is a temporarily oversupply of solar power, it can be stored in the batteries of the electric vehicles and later used to drive or feed it back into the customer's building at home ("vehicle to home") or into the power grid ("vehicle to grid") in order to cover sudden bottlenecks even without the additional use of fossil fuels in power plants.
As part of the "Bidirectional charging management - BDL" research project, technologies for energy management systems as well as hardware and software for controlling charging processes are being developed in addition to regenerative systems for vehicles and wall boxes. In addition, legal and regulatory framework conditions will be evaluated. The practical phase of the project will begin in 2021. During a one-year pilot phase, 50 private and fleet customers will be equipped with BMW i3 regenerative power supplies, suitable charging hardware and associated digital services in order to test the customer benefits and user-friendliness of the solutions developed to date under real conditions. The aim is to create a basis for the later widespread use of the technology to integrate electromobility into the power grid.
The research project under the auspices of the German Aerospace Center (DLR) is funded by the German Federal Ministry of Economics and Energy and is scheduled to run for three years.