INSIGHT 2026-10-03 · CLAIM 313ELECTRIC TIMES · KOREA POWER MARKET

2026.10.03

Zenith Korea's V2G Charger Designated Global OCPP 2.1 Reference

Zenith Korea's 'GEN3 V2G' electric vehicle slow charger was recently designated as a 'Golden SUT' partner by the Open Charge Alliance (OCA) for OCPP 2.1. This makes it a benchmark for verifying OCA's charging communication standards and testing tools, particularly for Vehicle-to-Grid (V2G) functionality.


Our take

How does a Korean company's EV charger shape global V2G communication standards?

Zenith Korea's designation as the 'Golden SUT' for OCPP 2.1 establishes a critical reference point for global Vehicle-to-Grid (V2G) communication standards, directly influencing the development and verification of testing tools for this essential DER technology.

This designation means OCA's testing tools (OCTT) for OCPP 2.1, which are crucial for V2G commercialization, will be validated against Zenith Korea's charger. By providing a perfectly compliant model, Zenith Korea ensures the accuracy of the testing infrastructure, thereby shaping how V2G assets are certified and integrated into charging networks. This role also grants Zenith Korea a direct channel to propose Korean grid and tariff requirements into future OCPP revisions, potentially reducing adaptation costs for Korean DER operators.

What the source says
  • The Open Charge Alliance (OCA) introduced the 'Golden SUT' process for OCPP 2.1 to enhance standard completeness, a step not taken for OCPP 1.6.
  • OCPP 2.1 is the version that incorporates Vehicle-to-Grid (V2G) functionality, with related features continuously being enhanced in subsequent revisions.
  • Zenith Korea is the only company in Korea currently applying OCPP 2.1 for V2G demonstration projects in Jeju.
  • Zenith Korea's 'GEN3 V2G' charger, used in the Jeju V2G demonstration, will be sent to OCA headquarters for use in testing tool development and verification.
  • OCA proactively proposed the collaboration with Zenith Korea for the Golden SUT designation.
  • Lee Sang-min Lee Sang-min, CEO of Zenith Korea, stated that the Golden SUT designation acknowledges the company's perfect implementation of OCPP.
  • Zenith Korea plans to leverage its participation in standard development to propose domestic requirements, reflecting differences in Korean grid connection standards and tariff systems.

For investors — Investors in Korean V2G solutions can anticipate a more streamlined and locally relevant certification process for their assets, as Zenith Korea's involvement provides a conduit for incorporating Korean grid and tariff specificities into global standards. This reduces the risk of incompatibility with international protocols and potentially accelerates V2G deployment.

Watch: Monitoring of Open Charge Alliance's (OCA) future OCPP revisions for inclusion of Korean grid and tariff requirements.

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