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Coulomb Technologies releases OpenCharge Protocol for EV charging equipment

Coulomb Technologies published its open protocol for communicating with Electric Vehicle Supply Equipment (EVSE). The OpenCharge Protocol is a proposed communication standard for charging station networks that defines the communications between a charging network and the charging station.

The protocol definition supports applications that include billing, asset management, real-time mapping, EVSE reservations, fleet management, and energy management. The OpenCharge Protocol defines a suite of XML messages and interactions, simplifying the design, development and implementation of network-based EVSE with rich functionality. Coulomb is also offering the OpenCharge Protocol as an international standard for EVSE-to-charging network communication.

The EV industry has made great strides by implementing vehicle-to-EVSE standards such as the SAE J1772 Level II connector standard, which ensures drivers can easily plug in their new electric vehicle into any new charging station. Now the industry needs an EVSE-to-network communication standard to ensure that all EVSEs can interoperate with the charging network.

—Richard Lowenthal, Chief Technical Officer of Coulomb Technologies

Coulomb today also announced it is offering the ChargePoint On-Ramp Program, which is available for all EVSE manufacturers. As a ChargePoint On-Ramp Program partner, a manufacturer receives software that enables their EVSEs to communicate with the ChargePoint Network, as well as documentation, reference designs, training, technical support and ChargePoint interoperability certification. The ChargePoint On-Ramp Program simplifies EVSE integration with the ChargePoint Network, accelerates time-to-market, and minimizes development costs. A demonstration will be shown at the Plug-In 2011 conference and exhibition in the Coulomb Technologies booth #121, 18 – 20 July in Raleigh, NC.


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