Charged recently spoke with Mathieu Béguin, North America Regional Product Manager at LEM, to explore the company’s advancements in EV charging infrastructure—specifically in DC metering technology. LEM, a global provider of current and voltage sensors, has developed an integrated solution that spans DC charging stations from 50 kW to 400 kW. The system includes precise current and voltage measurements, on-site data processing, and secure communication to the cloud for reliable DC billing.
The technology features a compact sensor unit that performs real-time electrical measurements. These readings are sent to the charger’s internal controller, which then forwards billing data to the cloud. Importantly, this data transfer includes a digital signature to ensure security and transparency for both operators and end-users. According to Matu, this setup aligns with growing regulatory demands in both Europe and the US, particularly around compliance with CE and TEP standards.
First launched in 2021, LEM’s DC metering solution was initially adopted across Europe and is now gaining traction in the US. The push for accurate, standardized DC billing systems has increased due to utility regulations and the expansion of public fast-charging networks. LEM’s solution meets the market’s needs for metering accuracy, system integration, and reliability.
As the global EV charging ecosystem continues to scale, solutions like LEM’s integrated DC metering platform will play a crucial role in enabling trustworthy and efficient billing processes. With a blend of compact hardware and secure digital communication, LEM is helping set the foundation for the next generation of high-power, high-efficiency EV charging stations.
Learn more at: https://www.lem.com/en/electric-vehicle-supply-equipment
