Case Study: Octopus Energy achieves UK-first Vehicle-to-Grid G99 certification with Resillion

Octopus Energy secures G99 certification with Resillion after 14 mandatory tests

Octopus Energy faced the challenge of achieving the UK's first G99 certification for its groundbreaking Vehicle-to-Grid (V2G) bundle, a system that allows electric vehicles to export energy back to the grid. This was a formidable task as there was no established testing pathway or precedent for such a project, which involved complex technical and cybersecurity compliance. They partnered with the vendor Resillion to navigate this uncharted territory and prove the system met the UK’s strict export approval standards.

Resillion led the full technical process, from designing the test plan to running lab setups and successful testing. Their approach integrated compliance and cybersecurity assessments across the entire solution, ensuring it was fully evidenced and met all requirements. This work enabled Octopus Energy to secure full G99 certification and successfully launch its revolutionary V2G system. The results include a first-of-its-kind certified offering ready for commercial rollout, strong customer interest, and a significant contribution to a more flexible and resilient UK energy grid.

Octopus Energy