Each device works on its own
With TED: one setpoint, smartly shared between all your inverters according to each battery's level and capacity.
New Version 3.2 available
All your solar equipment in a single environment.
TED is a HEMS: it measures your grid connection and shares charging and discharging between all your inverters and batteries, whatever their brand.
- Free until further notice
- No credit card
- Instant license
Available for
Home Assistant OS
Synology / NAS
Docker / Linux
Solar
3,420W
Grid
+8W
Home
1,240W
Controlled inverterBatterySetpoint
SolarFlow 2400 AC
78 %
+865 W
Hyper 2000 · E1
52 %
+700 W
Hyper 2000 · E2
61 %
+607 W
Total controlled
64 %
+2,172 W
HEMS · last hour
TED invertersGrid
Grid held near 0 W · 3 batteries driven as one
Unlimitedinverters and batteries, no software cap
3 modesassisted, autonomous and scheduled charging
24/7running locally
Freeuntil further notice, license generated instantly
Why TED
Several batteries, no coordination? TED makes them work together.
Each manufacturer app manages its own devices. TED takes a step back and orchestrates your whole installation.
The manufacturer HEMS holds you back
With TED: no software cap on the number of devices or on the power controlled. You set your own limits, and you can mix brands and models.
Surplus exported, imports at the wrong time
With TED: grid power is continuously regulated around your target. Surplus goes into the batteries; the house draws on them when needed.
How it works
Monitor, analyse, decide, control. In a loop, every few seconds.
TED sits next to your existing equipment. It reads your meter, then sends its setpoints to your inverters through Home Assistant.
Electricity metermeasures import and export
TEDdecides and shares
Home Assistantrelays sensors and setpoints
Inverters and batteriesany brand present in Home Assistant
- 01 · Monitor
Grid measurement
Your meter continuously reports what the house imports or exports, read through Home Assistant (or directly by IP for a Shelly).
- 02 · Analyse
State of each battery
State of charge, power, availability: TED smooths the measurement to ignore short spikes.
- 03 · Decide
The right mode, the right power
Charge, discharge or standby: the setpoint is computed to reach your target without exceeding your limits.
- 04 · Control
Sharing between inverters
Power is split according to capacity, favouring the most relevant battery, then sent through Home Assistant.
Control modes
A mode for every installation
Keep your manufacturer HEMS or let TED take over: you choose the level of control.
Keep your original HEMS
TED follows the "monitored" inverters run by the manufacturer app and adds the power of your other inverters as reinforcement.
TED regulates on its own, continuously
TED keeps grid power within the target band you choose, charging and discharging all your batteries.
You choose when to charge
Schedule weekly grid-charging slots, for example during off-peak hours in winter.
Features
Everything a multi-battery installation needs
Designed and proven every day on a real installation with several inverters.
Unlimited inverters
Add as many inverters and batteries as you need: no software cap.
Smart sharing
When discharging, the fullest batteries go first; when charging, the emptiest. Power follows each inverter's capacity.
Protected batteries
Minimum and maximum charge levels per inverter, maximum power for charging and discharging.
Automatic safeguards
Self-calibration, setpoint not applied, lost communication: the device is set aside, then retested automatically.
Surplus automations
Switch on a water heater, a plug, a Home Assistant scene or script, or call a webhook, with AND / OR rules.
Dashboard and history
Real-time view, daily charts, notifications on your own rules, error log and settings history.
Live settings
Every parameter is changed from the web interface and applies immediately, without a restart.
Monitored inverters
Include read-only devices too: TED takes the whole installation into account without ever sending them a command.
Open to integrators
REST API, configuration export and import, scriptable Docker installation to deploy for several customers.
Language: TED's own interface is currently in French (your browser's translation works well with it). An English interface is on the roadmap: vote for it to speed it up.
Compatibility
Does it work with your installation?
TED plugs into the ecosystem you already use.
Home AssistantRequired
A local serverDocker or Home Assistant OS
Your solar equipmentThrough Home Assistant
Installation
Install TED wherever suits you
The same TED, three ways to install it on an always-on machine: directly in Home Assistant OS, or with Docker on a NAS, mini-PC or Linux server.
Home Assistant OS
TED installs as a Home Assistant app on the same machine: Raspberry Pi, Home Assistant Green, mini-PC.
Home Assistant guideSynology / NAS
A script prepares the folders and the Docker network, then starts TED. Recommended for 24/7 control.
Download for NASAdvanced Docker
Load the image and run your own docker run: network, ports and volumes your way.
Trust
At home, and fully transparent
TED controls your installation from your own machine. Here is exactly what leaves it.
Your measurements stay at home
TED runs on your NAS, your mini-PC or in Home Assistant OS, and talks to Home Assistant on your local network. No measurement from your installation is sent anywhere.
A single mandatory connection
Once a day, TED validates its license with ted-energy.fr (license and installation identifiers, version). The full details are public.
What TED sends over the InternetSee before you install
The live demo shows TED's real interface on a working installation, read-only.
Open the live demo
Community
You are not alone with your batteries
On the TED Discord, ask your questions, share your settings and discover new features first (the community is mostly French-speaking, English is welcome). A feature idea? Propose it and vote on the roadmap.
Join the DiscordFrequently asked questions
Before you start
What exactly is TED?
TED is a HEMS (home energy management system) that runs at home, on your own server (NAS, mini-PC, Linux server) or directly in Home Assistant OS. Connected to Home Assistant, it continuously measures what your home imports from or exports to the grid, then adjusts charging and discharging of all your inverters and batteries so they work together, like one big battery.
Does TED replace my battery's app (manufacturer HEMS)?
Your choice. In assisted mode, your original HEMS (for example the Zendure app) keeps control of its devices and TED adds the power of your other inverters as reinforcement. In autonomous mode, TED regulates the whole installation on its own, independently of manufacturers.
Which hardware is compatible?
Any inverter or battery that shows up in Home Assistant through its integration (Zendure, Huawei, SMA, Victron, Anker SOLIX, Deye…). Zendure devices are fully tested and validated. The grid measurement comes from your meter, read in Home Assistant or through a Shelly. Details are on the Compatibility page.
Can I mix several battery and inverter brands?
Yes, that is what TED is for: every inverter and battery visible in Home Assistant, whatever its brand, receives one shared setpoint, split according to its capacity and state of charge. See how to run several brands together, and the other problems solved on the Solutions page.
Do I need Docker to use TED?
Not with Home Assistant OS: TED installs as an app on the same machine as Home Assistant (Home Assistant OS guide). Otherwise, TED comes as a Docker image, to install on an always-on local server: Synology NAS, mini-PC or Linux server. To discover it without installing anything, open the live demo. Everything is explained in the installation guide.
Is TED free?
TED is free until further notice. Your license is generated as soon as you submit the form and downloads immediately, with no credit card. If you wish, you can support development with a donation, as explained on the Pricing page, with no obligation.
Is it safe for my batteries?
TED respects the minimum and maximum charge levels and the maximum power you set for each inverter. A device that does not respond correctly (self-calibration, setpoint not applied, lost communication) is automatically set aside, then retested. You remain responsible for your electrical installation: start with cautious limits.
Ready to make all your batteries work together?
Download TED for free: your license is generated instantly, no credit card required.