Full web interface
Dashboard, HEMS page with real-time energy flows, history, notifications; in the Home Assistant sidebar with the Home Assistant OS app.
HEMS for Home Assistant
Manage your batteries in Home Assistant without writing automations
Home Assistant sees everything, but decides nothing on its own. TED adds what is missing: full regulation of your batteries, configured from an interface, with no code.
Sounds familiar?
- Your battery automations run to hundreds of lines and you no longer dare touch them.
- Every new device means rewriting everything.
- You want a clear dashboard of what each battery is doing.
Why it is hard
Reliable battery regulation means smoothing measurements, handling limits, sharing power and dealing with failures. As Home Assistant automations, that is a lot of code to write, test and maintain.
The solution
The features involved
Live settings
Every parameter can be changed from the interface and applies immediately, without a restart.
Local
The software runs on your own machine (Home Assistant OS, NAS, mini-PC) and talks to Home Assistant on your network.
Open to integrators
REST API, configuration export and import, Android app to follow the installation from your phone.
Getting it running
- 1
Install the software
As a Home Assistant OS app: no access token to create.
- 2
Follow the getting-started guide
Meter, inverters, limits: about ten minutes.
- 3
Disable your old battery automations
So that only one system decides.
See it working before you install it
The live demo shows the real interface on a working installation: energy flows, inverters, batteries, settings.
Frequently asked questions
Does the software replace Home Assistant?
No: it relies on Home Assistant to read sensors and send setpoints. Home Assistant remains essential.
Can I still use my automations?
Yes, for everything else. For the batteries, let the regulation decide on its own, to avoid two systems contradicting each other.
Other problems solved
Make several battery and inverter brands work together
Each manufacturer app ignores other brands. Here, they all work together under one setpoint.
Read the solutionUse your solar surplus: water heater, smart plugs, scripts
Batteries full, surplus exported: switch on your water heater, plugs or Home Assistant scripts following your rules.
Read the solutionGo beyond the limits of your manufacturer's HEMS
One brand, few settings, a limited number of devices: go beyond these limits, with or without the original HEMS.
Read the solutionReady to make all your batteries work together?
Free download: your free license arrives as soon as your email address is confirmed, no credit card required.