Let me tell you a story about how something small got us making history


A few years ago…

How did you guys manage to build such an infrastructure? When an electric vehicle charged on our infrastructure, we had a 20-day black out. – Argentina asked the Netherlands

A decade ago

Engineers started wondering what effect the changes in technology would have on the grid.

Many companies could not avoid the changes and had to prepare. Engineers got curious and started to develop hardware and smartware to balance energy use and protect energy transformers.

Because, what would happen when the electric vehicle really got booming and everybody started charging and demanding more energy from the grid?

Engineers got down to business, creating the first platforms that would be installed in charging stations to be able to communicate with electric vehicles and protects the transformers for the grid.

How do you tell a car what to do?

Charging stations and electric vehicles communicate with the language known as Mode 3. This language or protocol consists of different states, and when a charging station tells an electric vehicle to charge, it communicates this through the states, by adjusting its Pulse Width Modulation (PWM).


A charging station indicates an electric vehicle how much power it is available, through a PWM signal. This signal is a digital form of communication. A PWM generator which is present in the charging station, generates a +12 and -12 volt voltage and by adjusting the duty cycle, communication takes place from the charging station to the electric vehicle. The communication that is communicated is the state in which the electric vehicle and charging station find themselves in and the duty cycle indicates how much power is available for the electric vehicle.

Mode 3


A1 = Available . Plug is inserted on the car side. User plugs the connector into the charging station-> A1 to B1

B1 = connector is plugged in the charging station. User swipes the charging card infront of the card reader and the communication between the charging station and electric vehicle has started. The electric vechicle will wait for a reaction from the charging station -> B1 to B2

B2 = Waiting for a response from the electric vehicle.

B2 = Waiting for response car -> B2 to C2

C2 = Charging has started


A charging station’s platform is being implemented and used in smarter technologies such as projects for a smart grid. Terms such as load balancing and smart charging are in every day’s conversation. Engineers a decade ago, had no idea the platforms they were creating then, would be part of the hi-tech technologies which are being implemented today. And now, well, they’re balancing all kinds of stuff. More innovative and intelligent projects have been taken on to keep and promise the grid reliability.

  • Load Balancing between charging stations’power sockets
  • Load Balancing between a household and an Electric Vehicle
  • A combination between Electric Vehicle charging, solar panels and battery storage…

Basically, being smart when charging.

For an end user today, it is very difficult to understand or picture all the concepts in one. For this reason, organisations in the Electric Vehicle sector, Solar panels, battery storage are coming together to discuss the possibilities and how to make it easier for a user to understand what this is actually all about. Because, believe me, it is not a piece of cake, these ideas and projects come in all sorts of shapes, from complex to analytical and from simple to ecstatic.


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