OCPP 1.6 vs 2.0.1 – what is the difference?
OCPP is the standard that lets charging stations be managed from one system, regardless of brand. Here is the difference between the two versions in use today – and what it means for you.
What is OCPP?
Open Charge Point Protocol is an open protocol for communication between charging stations and management systems. It is maintained by the Open Charge Alliance and lets chargers from different manufacturers be monitored, controlled and billed in the same system.
OCPP 1.6 is the version supported by most chargers in operation today. OCPP 2.0.1 is newer and extends security, smart charging and how the charger describes itself to the system. See also load balancing and smart charging and OCPI for roaming.
Quick comparison
- 1.6: broad support, proven at scale
- 1.6: smart charging with charging profiles
- 2.0.1: security profiles and certificates built into the standard
- 2.0.1: extended smart charging and device model
- 2.0.1: Plug & Charge support via ISO 15118
What it means for you
Which version matters less than whether your chargers support OCPP at all.
No lock-in
With OCPP you can change chargers or management system without starting over.
Mixed charger parks
Chargers on 1.6 and 2.0.1 can be managed in the same system.
Security
2.0.1 has security built in – an advantage for public chargers.
Load balancing
Both versions let the system control charging power.
Upgrade path
Some chargers can be updated to 2.0.1 with new firmware – ask your supplier.
Vialumina CHARGE
Supports both OCPP 1.6 and 2.0.1, for AC and DC chargers of any make.
Frequently asked questions
Should we choose chargers with OCPP 2.0.1?
If you are buying new, 2.0.1 support is an advantage over time. But 1.6 works well and is still the most common. The key is that the charger supports OCPP.
Will our existing chargers work?
If they support OCPP 1.6 or 2.0.1 they can be connected to Vialumina CHARGE.
What is Plug & Charge?
A feature where the EV identifies itself automatically when plugged in, without an app or tag. It is based on ISO 15118 and supported in OCPP 2.0.1.