HEMS turns your ZGEMMA receiver into a home energy management hub. Monitor solar production, battery storage, grid usage, EV charging and heat pumps — all on your TV screen. 100% local, zero cloud.
Live energy flow visualization on your TV — solar generation, battery state, grid import/export and household consumption updated every few seconds.
Over 30 brand drivers included. Mix and match solar inverters, batteries, smart plugs and meters from different manufacturers in one unified view.
Create rules to automate devices based on energy conditions. Turn on a smart plug when solar excess exceeds 1 kW, or start your dishwasher at peak production.
Track state of charge, charge/discharge rates and health metrics for Tesla Powerwall, BYD, Pylontech, Sonnen and other home battery systems.
Solar-surplus EV charging integration with go-e, OpenEVSE and Wallbox chargers. Charge your car with free solar energy automatically.
Monitor and optimize heat pump operation with Daikin and MELCloud (Mitsubishi) integration. Schedule heating around cheap energy or solar surplus.
Transfer the .ipk file to your ZGEMMA box and install via the Enigma2 package manager or command line.
Edit devices.json to add your inverter, battery, smart plugs and other devices with their local IP addresses.
Launch HEMS from the Enigma2 plugin menu and see your complete energy flow dashboard in real time on your TV screen.
Works on all ZGEMMA Enigma2 receivers. No subscription, no cloud account, no tracking. Just install and go.