I created a module that visualizes produced, stored and consumed energy in your house in a minimalistic way.
It is meant to be used when you have a solar plant and an energy storage system (optional) installed.
Github Repo
https://github.com/deg0nz/MMM-EnergyMonitor
Screenshot
How it works
The module relies on other modules that provide data for it. It gets data updates via notifications from these “data source” modules.
Depending in which direction the power flows, the arrows change and current values are updated.
I developed MMM-VartaESS for Varta Energy Storage Systems and MMM-Fronius2 for Fronius power converters as companion modules for this to provide the necessary data.
The README in the GitHub repo explains, how to send data updates.