Solar monitoring app

Monitors solar panel output using the Fronius inverter API and power consumption in realtime and persists the data to a MySQL database for display in Grafana.

• Monitors instantaneous power generation and consumption
• Monitors per-string power generation
• Retrieves Solcast solar forecasts (https://solcast.com/)
• Uploads actual generation to tune the Solcast forecast

Usage

Configure solar panel system in Solcast

Setup and run the app:

• Build the application using Maven: mvn clean package
• Install and run MySQL (https://www.mysql.com/ or https://mariadb.org/)
• Setup the database using /src/main/resources/mysql/setup.sql (substitute your own passwords)
• Configure properties in application.properties
  • app.inverter.host - hostname/IP of the inverter web API
  • app.solcast.api-key - your Solcast API key value
  • app.solcast.site-id - your Solcast site ID
  • spring.datasource.username - your MySQL app user
  • spring.datasource.password - your MySQL app user password
• Run the application

To view the output, use Grafana:

• Install and run Grafana
• Configure the MySQL datasource
• Import the Solar dashboard found in /src/main/resources/grafana/Solar.json

Sample output: