Electricity grids can now achieve significantly more than they could just a few years ago: They not only supply customers but must also, for example, be able to take up energy from solar power plants and feed it into the next voltage level. More and more electric vehicles also need to be able to charge their batteries. This means that both the electricity lines and future decentralised storage systems need to be properly dimensioned and coordinated with one another. In its GRID laboratories, the EnBW subsidiary Netze BW is investigating how intelligent technology and new concepts can help electricity grids meet these requirements. At the Electric Fleets GRID laboratory in Stuttgart, for example, they are testing how the increasing number of e-cars will impact local distribution grids. Can the charging processes be automatically delayed or carried out at lower outputs? Do the charging times remain acceptable? How can e-cars serve as decentralised storage systems in the electricity grid? Experts at EnBW are carrying out research to find answers to questions such as these together with scientists.