Free Power Maximiser python script to make the most of 3 hours of free power a day
Posted: Thu Feb 26, 2026 12:50 pm
I finally have a beta version of my python script that seems to do what I want it to do, but it's only been coded with summer temps in mind. I still have plenty of time to extend it before things start to cool down around ANZAC day.
Currently it pulls solar production forecasts from solcast.com.au and forecast.solar and then it also downloads local BoM forecasts to try and predict air con usage.
While the program is configurable via a conf file, the software was based on my current power plan, which is $2.07/day with a discount of $1/day if no power is imported from the grid between 6pm and 8pm with free power between 11am to 2pm and a 15c Fit also between 6pm and 8pm.
Hopefully someone somewhere will also find it useful.
https://github.com/evilbunny2008/FreePowerMaximiser
Currently it pulls solar production forecasts from solcast.com.au and forecast.solar and then it also downloads local BoM forecasts to try and predict air con usage.
While the program is configurable via a conf file, the software was based on my current power plan, which is $2.07/day with a discount of $1/day if no power is imported from the grid between 6pm and 8pm with free power between 11am to 2pm and a 15c Fit also between 6pm and 8pm.
Hopefully someone somewhere will also find it useful.
https://github.com/evilbunny2008/FreePowerMaximiser