openWB Software 2.x
EV charger by openWB. Compatibility with energy supplier apps, Home Assistant and evcc.
At a glance
| Device type | EV charger [evcc template, 2026-10-19] |
|---|---|
| evcc support | Yes |
| Connection | Modbus TCP (inferred from evcc template parameters) [evcc template, 2026-10-19] |
| Local control (no cloud) | Yes via evcc's connection type [evcc template, 2026-10-19] |
| Home Assistant | Unknown know this? tell us (brand not yet checked) |
| Known firmware notes | Unknown know this? tell us |
Energy supplier apps
Supplier lists are published per brand (sometimes with model conditions). A brand match does not guarantee your exact model works — check the linked page or the supplier's app.
| Supplier / service | Status for openWB charger | Source |
|---|---|---|
| Frank Energie | Not listed openWB is not on Frank Energie's EV-charger list | [source, 2026-10-19] |
| Tibber | Not listed openWB is not on Tibber's EV-charger list | [source, 2026-10-19] |
| Zonneplan | Not listed Zonneplan only lists its own hardware | [source, 2026-10-19] |
| Eneco | Unknown know this? tell us | — |
| ANWB Energie | Unknown know this? tell us | — |
| Vattenfall | Unknown know this? tell us | — |
Home Assistant integrations for openWB
Unknown know this? tell us — we have not yet checked Home Assistant support for openWB.
evcc details
| Template | openwb-2.0 (charger) [source, 2026-10-19] |
|---|---|
| Connection | Modbus TCP (inferred) |
| Capabilities | mA1p3pmeterdim [source, 2026-10-19] |
| Requirements | Requires [`Software 2.x`](https://github.com/openWB/core).
The following changes are necessary under the 'Einstellungen' tab:
* Steuerungsmodus: `secondary`
* Steuerung über Modbus als secondary: `An`
RFID-Authorisation currently is not usable with openWB Software 2.x, check
[`openWB Issue 2832`](https://github.com/openWB/core/issues/2832) [source, 2026-10-19] |
| Known caveats | None listed in the evcc template. |
“Works for me” reports
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Where to buy
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