Home Assistant custom integration for Marstek Venus battery storage over local Modbus TCP — Venus A, D, E v1/v2 and E v3. Sensors, controls, schedules and a full register map. No cloud. HACS compatible.
python modbus smart-home solar home-assistant rs485 modbus-tcp energy-storage hacs custom-integration energy-monitoring battery-storage hacs-integration balkonkraftwerk marstek home-battery marstek-venus marstek-venus-d tmodbus sphings79-maintained
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Updated
Oct 8, 2026 - Python