The Mobility House, EcoG, and EV-Tech Bring Scalable Bidirectional Charging Station

Electromobility The Mobility House, EcoG, and EV-Tech Bring Scalable Bidirectional Charging Station

2026-06-22 By Stefanie Eckardt | Translated by AI 2 min Reading Time

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As part of a collaboration, The Mobility House, EcoG, and EV-Tech have developed and brought the 11-kW DC wallbox ChargeLine Bidi to series production. It is based on the standards ISO 15118-20 and OCPP 2.1 but is compatible with previous versions to ensure interoperability with vehicles and backends already on the market.

Together with EcoG and EV-Tech, The Mobility House has brought the 11-kW DC wallbox ChargeLine Bidi to series production.(Image: The Mobility House) — Together with EcoG and EV-Tech, The Mobility House has brought the 11-kW DC wallbox ChargeLine Bidi to series production.
(Image: The Mobility House)

Bidirectional charging turns electric vehicles into mobile power storage units. Instead of only consuming energy, they can supply electricity to external devices, their own house, or the public grid. This not only saves costs but also offers advantages in independence and stabilizing the energy transition. A commercial breakthrough of the technology is anticipated. Against this backdrop, The Mobility House and EcoG, with the help of the Chinese company EV-Tech, have developed and certified the 11-kW DC wallbox ChargeLine Bidi for series production. According to the partners, they have already convinced the first automakers.

Ready for 800-Volt Architectures

The ChargeLine BiDi is not a proprietary standalone system. It is consistently based on the industry standards ISO 15118-20 and OCPP 2.1—while also remaining compatible with previous versions ISO 15118-2, as well as OCPP 2.01 and OCPP 1.6, to ensure interoperability with vehicles and backends already on the market. The combination of standard compliance, 800-volt technology, and the ability for customer-specific customization makes the ChargeLine BiDi future-proof. By 2030, the majority of high-performance electric vehicles are expected to adopt 800-volt architectures.

This means that any automaker can now replicate this technology for their own customer ecosystem. Any ISO 15118-20-compatible electric vehicle can be charged and discharged at the charging station. Additionally, the station can be updated over-the-air after purchase to ensure long-term compatibility. Furthermore, any energy provider can connect their OCPP 2.1 backend to the ChargeLine BiDi for charge management. This allows both automakers and energy providers to integrate the bidirectional wallbox into their existing offerings.

In addition, cybersecurity is provided according to EU standards with encrypted vehicle communication, NIS-2 compliance, and EN 18031 certification. The wallbox is triple-certified for the European market: TÜV-tested according to EN 18031 (cybersecurity including OTA and network protection), VDE-AR-N 4105 (grid connection including grid code and active power reduction), and IEC 61851-24 (vehicle communication and low-voltage directive). The Bidi wallbox is already certified for the German market and will be certified for Austria, Switzerland, France, and the UK later this year. Additional countries are set to follow.

The Scienlab Charging Discovery System SL1047A—High-Power Series (left). The Megawatt Charging Discovery System SL2600A (right) and its hardware expansion systems for electric vehicles and charging stations (far right). (Image:Keysight Technologies)

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