I had a thought to schedule the daily builds at builds.robur.coop when the energy prices are low. My suspicion is that there is a (strong?) correlation between energy prices and CO2 emissions - lower prices means less CO2. Is there data backing up this idea?
@reynir https://energinet.dk/ has a 'live' energymap in Denmark, saying where the energy is sourced and the emissions per kWh :)
They have even more data available if you dig around :)
Energinet

Energinet er et selvstændigt statsligt selskab, som ejer og driver dansk energiinfrastruktur. Vi sikrer høj forsyningssikkerhed på el- og gasområdet i Danmark og bidrager til en effektiv grøn omstilling.

@ruben Thanks! Might be a way to test my hypothesis.

The nice thing about electricity prices is you get them the day before. I'm not aware of any CO2 forecasts, so the electricity prices will have to do for scheduling when to do work during the day.