OpenEVSE Advanced Series Charging Station (50A)

Quick verdict

Fully open-source hardware and firmware with a local-push Home Assistant integration plus native MQTT, so the charger never needs the internet. Open firmware speaks MQTT/HTTP directly on your LAN and the HA integration is Local Push with no vendor cloud in the path. Just note: Premium price and largely DIY/kit ethos.

Standout: Fully open-source hardware and firmware with a local-push Home Assistant integration plus native MQTT, so the charger never needs the internet.

Last checked: 2026-06-02

Compatibility snapshot

Why it stands out

• Open-source ESP32 firmware with full local MQTT/HTTP control and LAN OTA
• Official HA integration is Local Push exposing amp limits, charge mode and energy
• Excellent for solar-surplus/dynamic load automation on-device

Reasons to hesitate

• Premium price and largely DIY/kit ethos
• No Amazon listing; sold direct
• No Matter/Thread

Best for

• HA power users wanting a 100% local, hackable, solar-aware EVSE

Avoid if

• you're shopping on a tight budget

Privacy and local-control notes

Open firmware speaks MQTT/HTTP directly on your LAN and the HA integration is Local Push with no vendor cloud in the path.

Home Assistant support: supported · integration path: OpenEVSE (official, Local Push, MQTT).

Buying reality check

Price notes: Around $650. A premium pick.

Compare side by side: see ev charging comparisons →