OCPP
OCPP (Open Charge Point Protocol) ( German : Free Charging Point Communication Standard ) is a universal application protocol that standardizes communication between charging stations for electric cars (EV) and a central management system. It is comparable to the communication protocol of cellular networks.
OCPP was created on the initiative of the E-Laad Foundation in the Netherlands . The purpose of OCPP is to enable manufacturer-independent communication between electric car charging stations and various billing and management systems of charging infrastructures via an open application protocol. Today, OCPP is used worldwide as a universal communication protocol in the field of charging infrastructures.
Advantages of OCPP
Charging station operators are less dependent on individual system suppliers thanks to a universal communication protocol. For example, if a single manufacturer of charging station infrastructure ceases to operate, its already installed components can be integrated into the infrastructure of another supplier via the universal OCPP protocol.
OCPP, thanks to the manufacturer-independent protocol, enables the already installed infrastructure to continue to be operated when small charging networks are merged into a larger charging network. This improves the investment security of infrastructure builders.
Versions of OCPP
There are different versions of the OCPP protocol:
| version | Release date | particularities |
|---|---|---|
| 1.5 | 06/08/2012 | officially specified for SOAP only |
| 1.6 | 08/10/2015 | Specification enables implementation using SOAP and JSON ( WebSocket ) expansion of the OCPP 1.5 standard to include "Smart Charging" functionalities ( load management ) |
| 2.0 | April 2018 | Specification only allows implementation as JSON (WebSocket) extension of the OCPP 2.0 standard to include " cyber security " topics |
OCPP worldwide
The OCPP has so far only been established in Europe and Asia . In the United States , however, it was the Department of Energy (DOE) previously of the opinion that the various energy networks had sufficient for different charging infrastructures size. For this reason, network operators , who are often also manufacturers of charging infrastructures, have been given a free choice of protocol.
However, the US Department of Energy has been increasing its efforts to interoperate charging station networks since 2013. In the future, this should ensure that vehicles, charging stations, communication and network systems work in harmony with the power grid. An electric vehicle smart grid interoperability center, just outside of Chicago, is doing research on the harmonization of smart grid technologies.
criticism
As part of the introduction of battery-electric vehicles ( electric cars ) in their vehicle fleet, employees of the Fraunhofer Society dealt with the security of OCPP (version 1.5 and 1.6). It was found that the accounting data is transferred to the central accounting server without protection.
Web links
Individual evidence
- ↑ Welcome to the Open Charge Alliance . Ocppforum.net. Retrieved October 12, 2013.
- ^ Flexibility and OCPP . EV Connect. August 5, 2013. Archived from the original on October 3, 2013. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved October 12, 2013.
- ↑ www.keba.at OCPP can be easily connected to a central system. This is particularly interesting for monitoring, load management and energy billing . Retrieved June 30, 2016
- ^ Open Charge Point Protocol OCPP . Infrastructure.switchev.co.uk. Archived from the original on October 14, 2013. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved October 12, 2013.
- ↑ EVConnect . Energy.ca.gov. Retrieved October 12, 2013.
- ↑ Energy Department Partners with EU on Electric Vehicle and Smart Grid Coordination | Department of Energy . Energy.gov. July 19, 2013. Retrieved October 12, 2013.
- ↑ Charging infrastructure for electric cars: expansion instead of security - why charging an electric car is unsafe . December 27, 2017. Retrieved April 25, 2018.
