Webinar highlights

What Happens When an EV Charger Goes Offline? | Webinar Highlight

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October 26, 2026 cloud, ems, ev charging, flexbox, gateway

What happens when an EV charger goes offline but keeps charging at full power? Your EMS can no longer see it, so HARMON-E lets you configure fail-safes that reduce the remaining charge points to avoid an overload.

Answering an attendee question, Nicolas Leerch, Head of Customer Success at FLEXECHARGE, explains the biggest offline risk CPOs face and how these fail-safes have handled it reliably for years.

What you will learn:
・What role Cloud, the GATEWAY and the FLEXBOX each play in a HARMON-E deployment
・When a site needs local, offline-capable control instead of cloud
・How DSO signals, country rules and site assets change which architecture fits


▶ Watch the full webinar "One EMS, Three Ways to Deploy It" on demand, including the full Q&A on our website.

I think for me, a typical loss would be one of the charge points goes into error, and we do not know what that charger is doing at that moment. There are fail-safe functionalities in our energy management, which allow you to configure what should the remaining charge points do if one of them goes offline. Okay. So the biggest risk we typically see is charger offline, discharging at full power, but we can't see it. So we can reduce the remaining charge points in such a scenario to avoid an overload. And I can tell you from experience over the last few years this has been working quite well.