E3DC 4 Homey¶

Unofficial Homey app for E3DC home power stations (community fork Copiis/e3dc-4-homey).

E3DC is a brand of HagerEnergy GmbH (e3dc.com). This project is not affiliated with E3DC.

Current stable: v1.8.72 · App Store · Forum

How it works¶

E3DC stations expose a local TCP interface (RSCP, port 5033). All live data and control stay on your LAN — no E3DC cloud is required for normal operation.

You must enable RSCP once on the station itself. See Setup.

Portal username/password are used only for RSCP authentication on the station (not for cloud control).

Features¶

Fully local RSCP communication
Live energy: PV, house load, grid, battery, wallbox
Homey Energy via grid meter + battery devices
EMS-style power modes (auto / idle / charge / discharge / grid charge)
Wallbox as evcharger devices with sun mode, prioritization, vehicle SOC
PV forecast (Open-Meteo): baseline + recalculated daily kWh (up to 3 surfaces)
Dashboard widgets: live energy flow, wallbox, HKW/wallbox charge planners
Island / emergency-power triggers and timeline messages
Optional diagnostic report for support

Devices¶

Device	Role
HKW / HPS	Main connection — pair this first
Grid meter	Import/export for Homey Energy
Battery monitor	Per-module monitoring
Wallbox	One device per charge point
Statistics	Period totals (today, yesterday, month, …)
Energy summary	Live aggregate + PV surplus (EMS-friendly)
PV forecast	Daily forecast baseline + recalculated

Widgets¶

See Widgets: live energy flow (E3DC-HKW), wallbox control, HKW/wallbox charge planners.

Flows¶

See Flows & EMS for HKW and wallbox cards (limits, power modes, island mode, sun mode, vehicle SOC, …).

Help¶

The RSCP protocol is not officially documented; behaviour can vary by model and firmware. When reporting issues, include model, firmware, and a diagnostic report from the HKW device settings (no passwords).