Nulleinspeisung

Overview

This project provides a Docker container (denshooter/nulleinspeisung) for managing solar energy systems. It's designed to optimize the use of energy generated by Hoymiles Wechselrichter, ensuring none of it is fed back into the grid. The container integrates with OpenDTU and Shelly 3EM Pro for effective energy management.

Credits

This project is inspired by and based on Selbstbau-PV's Hoymiles nulleinspeisung mit OpenDTU und Shelly3EM. Special thanks to the original authors for their foundational work.

Prerequisites

Docker installed
Grab the python script from GitHub denshooter/nulleinspeisung

Configuration

Modify Nulleinspeisung.py with your specific setup details:

Serial Number: Replace <SERIAL_NUMBER> with your Wechselrichter's serial number.
Wechselrichter Output Range: Set maximum_wr and minimum_wr for output range in Watts.
OpenDTU Configuration: Update dtu_ip, dtu_user, and dtu_password with your OpenDTU's details.
Shelly IP: Change shelly_ip to your Shelly 3EM Pro IP.

Running the Container

Use the following command to run the container, replacing /path/to/Nulleinspeisung.py with the actual script path:

docker run -d --name nulleinspeisung-container -v /path/to/Nulleinspeisung.py:/app/Nulleinspeisung.py denshooter/nulleinspeisung

Building the Docker Image

For those who prefer to build the Docker image themselves, the Dockerfile is provided in the repository. You can build the image by running the following command in the directory containing the Dockerfile:

docker build -t nulleinspeisung .

Updating the Script and Restarting the Container

To update Nulleinspeisung.py and restart (if build container yourself remove the 'denshooter/' part:

docker stop nulleinspeisung-container
docker rm nulleinspeisung-container
docker run -d --name nulleinspeisung-container -v /path/to/Nulleinspeisung.py:/app/Nulleinspeisung.py denshooter/nulleinspeisung

Additional Notes

Ensure Docker is running before these commands.
you may adjust firewall settings for network device communication.

Contribution

Feel free to fork, modify, and send pull requests or raise issues to enhance the functionalities of this project.