Mielesolar

Start Miele@Home appliances when your SolarEdge inverter produces surplus power.

Purpose

Why should you want to use this point-to-point integration between your inverter and household devices when more flexible solutions like openHAB.org, FHEM, ioBroker.net, home-assistant.io, etc. exist?

• Minimal resource footprint: the Docker image has a compressed size of ~4 MB, the memory usage is ~10 MB.
• Easy to get started: it's not required to learn abstract concepts like things, connectors, bindings, channels, links, etc. Just provide your inverter's IP address and Miele credentials and that's it.
• No gateway (XGW3000) required to connect to your Miele devices: mielesolar uses the Miele API to talk to your WiFi-enabled devices.
• Realtime data: mielesolar does not use the restricted SolarEdge Monitoring API (only 300 requests per day, data resolution of 15 minutes) or unsupported workarounds like scraping the monitoring platform, but talks to your inverter directly over the local network. This is fast and provides realtime data.

Usage

1. Enable MODBUS over TCP on your inverter

This can be done without opening the inverter. See documentation.

2. Get Miele API credentials

The tool uses the Miele 3rd Party API to communicate with your appliances and requires API credentials to do so. You can request access at https://www.miele.com/f/com/en/register_api.aspx. Pass the obtained credentials and your Miele@Home account through MIELE_USERNAME, MIELE_PASSWORD, MIELE_CLIENT_ID, and MIELE_CLIENT_SECRET environment variables to mielesolar.

3. Run mielesolar

There are several options to run the tool on a variety of machines, including Raspberry Pi or common NAS hardware. Set the vg parameter to the locale where you registered your Miele@Home account, e.g. de-DE or de-CH.

Native

go install github.com/ingmarstein/mielesolar
MIELE_USERNAME=xxx MIELE_PASSWORD=xxx MIELE_CLIENT_ID=xxx MIELE_CLIENT_SECRET=xxx mielesolar -inverter $IP -port 502 -vg de-DE -auto 500

In a container

docker run --env MIELE_USERNAME=xxx --env MIELE_PASSWORD=xxx --env MIELE_CLIENT_ID=xxx --env MIELE_CLIENT_SECRET=xxx ingmarstein/mielesolar -inverter $IP -port 502 -vg de-DE -auto 500

Alternatively, use the included docker-compose.yml file as a template if you prefer to use Docker Compose.

On a Synology NAS

Add the Mielesolar Synology Package Source

1. Open Package Center in DSM and select the Settings option.
2. Select the Package Sources tab.
3. Click Add
4. In the Name section enter Mielesolar
5. In the Location section enter https://ingmarstein.github.io/mielesolar/
6. Click OK

Install Mielesolar

1. Go back to Package Center and search for Mielesolar
2. Click on the Mielesolar package then select Install
3. Click Agree when warned about using a package from an unknown publisher
4. Click Done to confirm installation
5. Provide the configuration parameters

mielesolar.conf

If you upgrade your existing Mielesolar package, no changes will be made to the mielesolar.conf file. If you want to overwrite your mielesolar.conf configuration with the default one, please uninstall and install the package again.

You can customize the configuration of Mielesolar by using the config file at /var/packages/mielesolar/target/mielesolar.conf.
Please stop the package before changing the configuration.
If you have edited the configuration while Mielesolar is running, please restart the Mielesolar package.

4. Start your Miele appliance

When starting your dishwasher, washing machine, tumbler, etc. use the "SmartStart" option which delays the start of a program until enough solar power is generated or until a specified time, whichever comes first. If this is not available, enable the SmartGrid option. mielesolar will find the devices in the PROGRAMMED_WAITING_TO_START state and start them whenever your SolarEdge inverter signals sufficient power generation.

Advanced configuration

A configuration file can be used to define a priority order in which to launch the appliances and to customize their power consumption.

In order to use the configuration file, don't use the -auto parameter which otherwise defines a common power consumption value for all appliances and replace it with -config $file using the following format:

[
  {
    "id": "000xxxxxxxxx",
    "name": "Washing Machine",
    "power": 200
  },
  {
    "id": "000yyyyyyyyy",
    "name": "Tumble Dryer",
    "power": 500
  }
]

The order of the devices defines the priority, i.e. the order in which the devices are started if the inverter produces surplus power. In the example above, if 600 W power is available, mielesolar would start the first device consuming 200 W, but the remaining 400 W are not enough to also start the second.

The power values don't need to be exact and should be chosen large enough to not start the devices too early.

A device's identifier is also called "serial number" or "fabnumber" and can be found in the Miele@Home app (include the leading zeros).