I've posted some interface code that sends an email at the end of the day and when a certain spend on electricity is achieved each day
The code is dire but it works. It saves me having to log in to the owl website to see the usage. I leave the pi on 24/7 and have the script start on boot up- in case something goes wrong and i need to restart.
Been running for a week now - clocked up £13.50 in electricity usage!
Code is here:
Have fun a feel free to ask questions. Note I'm not a python guy so be nice