Solar Panel Stats

Check solar panel power generation by hour, week and month.

Hardware

Libraries

• ruby 2.7.4
• rails 7.0.2
• sqlite3 1.4
• httparty 0.20.0
• figaro 1.2
• whenever 1.0
• chartkick 4.1
• groupdate 6.1

Setup

1. Clone this repository git clone https://github.com/gogvale/solar_panel_stats/
2. Inside the project run:

$ rails db:setup

3. Modify config/application.yml with the following info:

development:
  solar_panel_address: <solar_panel_url>/status.html
  solar_panel_username: <username>
  solar_panel_password: <password>

4. Run the following command to add cronjobs:

$ whenever --update-crontab

5. If necessary, modify the crontab with crontab -e in order to enable root to run the rails app, mine is as following:

# m h  dom mon dow   command
@reboot rbenv sudo /home/gogvale/solar_panel/bin/rails s -b 0.0.0.0 -p 80

# Begin Whenever generated tasks for: /home/gogvale/solar_panel/config/schedule.rb at: 2022-04-28 20:51:44 -0500
0,15,30,45 * * * * /bin/bash -l -c 'cd /home/gogvale/solar_panel && rbenv exec rails runner -e development '\''GetPowerGenerationJob.perform_now'\'''

# End Whenever generated tasks for: /home/gogvale/solar_panel/config/schedule.rb at: 2022-04-28 20:51:44 -0500

6. Debugging done with postfix, restart Raspberry for starting the server by the cronjob

Screens

Dashboard

Collected data

Solar Panel Interface Stats