SENEC
Home Battery Storage with Smart Local API for KNX Self-Consumption
SENEC (Leipzig, Germany) manufactures the SENEC.Home series of residential battery storage systems used across Germany and Austria. SENEC.Home G3 (5/10/15 kWh Li-ion) and SENEC.Home V3 Hybrid integrate via a local JSON API on port 7001 for KNX self-consumption control.
Role in our panels
How we use SENEC
SENEC.Home G3 5/10/15 kWh: local JSON API at http://[senec-ip]:7001/lala.cgi (POST with JSON payload). Key fields: ENERGY.GUI_BAT_DATA_POWER (battery charge/discharge power, W — positive=charging, negative=discharging), ENERGY.GUI_BAT_DATA_FUEL_CHARGE (SOC 0-100%), ENERGY.GUI_HOUSE_POW (house consumption W), ENERGY.GUI_GRID_POW (grid import/export W, positive=import, negative=export). No authentication required on local network. Node-RED or ioBroker adapter polls every 10s and maps to KNX GAs via KNX binding. SENEC.Home V3 Hybrid: same API structure, adds PV inverter data ENERGY.GUI_INVERTER_POWER. KNX integration: SOC to DPT 5.001 (percentage), battery power to DPT 9.001 (kW), grid power to DPT 9.001. ETS6 logic: when SOC > 90% and grid export > 500W, activate KNX load (dishwasher, washing machine via switch actuator). SENEC charging modes: SAFE mode (charge fully before export to grid), BEST COST mode (time-of-use tariff aware). SENEC Wallbox (11/22 kW): OCPP 1.6J or SMA Sunny Home Manager protocol. No native Modbus TCP — use OCPP central system (Home Assistant or EVCC) to read meter values and feed to KNX.
SENEC.Home integrates with KNX via local JSON API (port 7001) polled by Node-RED or ioBroker — battery SOC, house power, and grid power map to KNX DPT GAs for self-consumption automation.
Used in these project types
SENEC products
Key components we install
SENEC.Home V3 Hybrid 10 kWh
10 kWh Li-ion AC-coupled battery with integrated hybrid inverter. Local JSON API at port 7001 with 20+ data fields. KNX integration via Node-RED polling: SOC, house load, grid power, PV production, battery charge/discharge state.
SENEC.Home G3 5 kWh
5 kWh residential battery storage, AC-coupled. Same local API as V3. Suitable for 4-6 kWp PV systems. KNX automation triggers: charge heating rod when SOC > 80%, release EV charging when grid export > 2 kW.
SENEC Wallbox 22 kW
22 kW three-phase SENEC-branded EV charger. OCPP 1.6J to Home Assistant. Pairs with SENEC.Home battery for self-consumption EV charging. KNX integration via HA KNX binding — charge start/stop from KNX GA.
SENEC Smart Meter
Bidirectional energy meter (Eastron SDM630 basis) with SENEC cloud connectivity. Modbus TCP also accessible locally on port 502 for independent KNX energy monitoring.
SENEC FAQ
How do I access the SENEC local API?
POST to http://[senec-ip]:7001/lala.cgi with JSON body: {"ENERGY":{"GUI_BAT_DATA_POWER":"","GUI_BAT_DATA_FUEL_CHARGE":"","GUI_HOUSE_POW":"","GUI_GRID_POW":""}}. The API returns current values for each requested field. No authentication. Polling interval: 10 seconds.
Does SENEC support Modbus TCP directly?
No. SENEC.Home G3 and V3 do not expose a Modbus TCP server. The only local integration interface is the JSON API on port 7001. For Modbus, use the energy meter (Eastron SDM630) separately via its own Modbus TCP port.
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