Nexus' solution for protecting vehicle-to-grid communication (V2G) with PKI certificates is compliant with common standards and used in plug & charge applications. 

Plug & charge use case

The plug & charge functionality has the following goals: 

• E-roaming: any e-vehicle with a contract from any mobility operator can charge at any charge point
• Usability: effortless, cashless and transparent payment without the need for RFID or mobile identification
• Smart tariffs, bill signing: the mobility operator signs bills - with dynamic tariffs - on behalf of the consumer
• Smart charge control: charging profile can be prepared according to grid status

Roles 

The goal of V2G PKI is that the following parties can trust each others’ certificates and contracts:

• Vehicle manufacturers (OEMs) provide IDs for e-vehicles (EVCCs) with plug & charge functionality.
• Charge point operators (CPO) provide IDs for charge points (SECCs) with plug & charge functionality.
• Mobility operator (MO) close contracts with consumers and provide signed electronic contracts for the e-vehicle, which are presented to the charge point for charging.

Nexus' solution

Nexus' V2G PKI solution is based on Smart ID Certificate Manager, which has the following features: 

High availability and performance

• Guaranteed high performance with a proven capacity to issue 10,000 certificates per second
• Offered as a managed service - with guaranteed SLA and capacity as you grow - or for licensing 
• High availability, with >99,7% uptime measured on monthly basis
• Supports monitoring via logs or SNMP, reporting possibilities and regular backups and health checks 

Compliance

The solution complies with international standards, such as the following:  

• ISO 15118 for plug & charge, where Nexus were early adopters in close technical cooperation and agile approach together with customers
• PKI policy and management according to ETSI 319 411-1 “Normalized Certificate Policy”, yearly audit

Proven security

• Quality-assured, high-security CA software certified in compliance with Common Criteria EAL 4+
• Nexus has solid PKI expertise since > 20 years and numerous large-scale references 
• Nexus’ data center and organization comply with ISO 27001
• Nexus’ organization comply with the VDA ISA requirements in TISAX (Trusted Information Security Assessment Exchange), the information security standard for the automotive industry 
• Mature, future-safe, highly reliable, continuously tested and maintained software

Scalable platform

• Highly scalable horizontally by adding service nodes.
• Multi-CA and multi-tenancy enabled platform helps you adapt the PKI hierarchy, administration and reporting to your needs.