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Victron EM530/EM540

Energy / P1 meter by Victron. Compatibility with energy supplier apps, Home Assistant and evcc.

At a glance

Device typeEnergy / P1 meter [evcc template, 2026-10-19]
evcc supportYes
cg-emt3xx (Modbus RTU, Modbus TCP) [evcc template, 2026-10-19]
ConnectionModbus RTU (RS485)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 Assistant5 integrations for Victron (brand-level, see below) [first source, 2026-10-19]
Known firmware notesUnknown 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 / serviceStatus for Victron meterSource
Frank Energie Unknown know this? tell us —
Tibber Unknown know this? tell us —
Zonneplan Unknown know this? tell us —
Eneco Unknown know this? tell us —
ANWB Energie Unknown know this? tell us —
Vattenfall Unknown know this? tell us —

Home Assistant integrations for Victron

Brand-level match: these integrations target Victron hardware; whether they cover the EM530/EM540 specifically is not verified.

IntegrationTypeLocal / cloudSource
Victron GX victron_gx Core local_push [manifest, 2026-10-19]
Victron BLE victron_ble Core local_push [manifest, 2026-10-19]
Victron Remote Monitoring victron_remote_monitoring Core cloud_polling [manifest, 2026-10-19]
victron victron
Integration for Home Assistant to fetch data from the victron gx device via modbusTCP
HACS ★322 local (per repo description) [HACS index, 2026-10-19]
Victron MQTT Integration victron_mqtt
Home Assistant Victron GX integration based on the MQTT protocol
HACS ★205 local (per repo description) [HACS index, 2026-10-19]

evcc details

Templatecg-emt3xx (meter; usages: grid, pv, charge) [source, 2026-10-19]
ConnectionModbus RTU (RS485)Modbus TCP (inferred)
CapabilitiesUnknown know this? tell us
RequirementsNone listed in the evcc template.
Known caveatsNone listed in the evcc template.

“Works for me” reports

No user reports yet. Report your firmware version and setup TODO: form

Where to buy

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