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A total of 681,410 electric cars were registered in 2021. This means that the percentage of new vehicle registrations involving electric cars has more than doubled since 2020. This increase also means that an increasing number of charging facilities, such as wallboxes in the private sector, are being installed and registered with the grid operator.

From a number of 5 to 10 electric vehicles, intelligent control of the charging processes is necessary in most cases to avoid unnecessary expansion of the existing grid connection or increased power charges to grid operators.

The future of mobility is electric. But the environmentally friendly and quiet electric cars need to be recharged before the journey. To ensure that charging is quick and safe and seamlessly integrated into the local energy supply, countless processes run in the background. Open and standardized interfaces between the vehicle, charging station and back-end as well as energy management systems guarantee that charging infrastructure can grow and constantly improve with the increasing success of electric mobility. This way a future-proof charging infrastructure is guaranteed. Reason enough to dedicate a series to these invisible helpers.

In a blog series, The Mobility House, the technology company and solution provider for everything to do with charging, explains which interfaces and standards are important for the market and what is generally important to know and observe.

The fifth part is dedicated to ISO 15118, the international standard which enables the bidirectional communication between an electric car and charging station.

Electric mobility is booming—and many companies are currently thinking about changing their company cars to electric drive. This involves more than just updating the company fleet, however: powerful charging infrastructure also needs to be set up at the company sites. We will explain the things to consider, and how to avoid pitfalls and bad investments.

In 2020, electric cars reduced CO2 emissions in Germany already by a good 160,000 tons if the current electricity mix of 471 g CO2/kWh (2018, German Federal Environment Agency) is used to calculate the CO2 emissions. And this figure could even have been doubled if cars were charged exclusively with green electricity – at least that is the conclusion of an evaluation conducted by the energy company E.ON which compared the CO2 emissions produced by cars with combustion engines with those produced by electric cars. But since wind and solar-based renewable energy generation naturally fluctuates, more or less electricity generated from coal and gas inevitably ends up in electric car batteries depending on the time of day, which makes it not exclusively green.