Open Charge Alliance selects OASIS as the standard development organization for Open Charge Point Protocol (OCPP)
The Open Charge Alliance (OCA) consortium has decided to standardize the Open Charge Point Protocol (OCPP) at OASIS, an international open standards development organization (SDO). OCA said that the move to OASIS will provide an expeditious standardization process and potential pathway to integrate OCPP with the International Electrotechnical Commission (IEC) framework.
OCA was formed to create a universal open communication standard—OCPP—to address the challenges associated with proprietary charging networks and to enable seamless communication between charging stations and vendor central systems. With more than 20,000 installations in 17 different countries, OCPP has become the de facto open standard for open charger to network communications, OCA said.
OCPP version 1.6 will be supported by a compliance test tool for self-testing at the beginning of next year.
OCPP 2.0 is a Release Candidate version of OCPP that was first published as a draft in November 2014. It addresses the aspect of a modular design, making the specification more comprehensible and allowing for flexible use in various markets. OCA members are working to finalize the OCPP 2.0 version, adding features and enhancements following market demand.
This modular approach has several further benefits, including comprehensibility and robustness. It also has the ability to evolve each of the feature sets independently as pricing, Smart Charging, device health, payments, reservations and vehicle-to-X.
OCA is retaining the basic functionality of OCPP 1.2/1.5/1.6 in the core of OCPP 2.0, which can be implemented independently from the new feature sets enabling more advanced operations—e.g., using Websockets transport and JSON encoding for low-overhead transport.
OCPP 2.0 will contain multiple feature sets:
Pricing: basic usage cost calculations on the charge point; more complex pricing models in coordination with central system.
Smart Charging: supporting both PWM and ISO/IEC 15118.
Monitoring and control: improved customer experience; lower OA&M costs.
OCA intends to begin the standardization process within an OASIS Technical Committee and work towards approval of the next version of OCPP as an official OASIS standard soon.
The scope of development will include aligning or harmonizing OCPP with IEC standards, such as IEC 61850 (design of electrical substation automation) and ISO/IEC 15118 (communication between EVs and the Electric Vehicle Supply Equipment (EVSE) which are widely recognized by the electric grid and the EV community. OCA has defined key objectives in its path towards global standardization which include:
Developing interoperability standards through an open consensus process that aligns with upstream and downstream standards for Vehicle-Grid Integration (VGI) through OASIS and ultimately through IEC.
Providing tools for compliance testing and supporting an OCPP certification process.
Creating an open network for asset owners to seamlessly integrate charging infrastructure and the grid.
OASIS (Organization for the Advancement of Structured Information Standards) is an international, non-profit consortium that drives the development, convergence, and adoption of open standards for the global information society. OASIS standards offer the potential to lower cost, stimulate innovation, grow global markets, and protect the right of free choice of technology. The consortium has more than 5,000 participants representing over 600 organizations and individual members in 65 countries.