I thought this video was rather interesting, because at 12:27, the presenter crunches the numbers to find out how many years it would take for a new computer purchase to be more environmentally friendly (in regards to total CO2 expended) compared to using a less efficient used model.
Depending on the specific use case, it could take as little as 3 years to breakeven in terms of CO2 if both systems were at max power draw forever, and as long as 30 if the systems are mostly at idle.
@BackYardIncendiary @ProdigalFrog If you have an old latitude, newer kernels also allow you to set min/max charging thresholds. My syncthing server (and NAS and a few other things) is an old 2013/2014 dell latitude e7240. It’s not the original battery, but I do keep it in decent shape via charging thresholds.
Nice to know that the latitudes work with TLP, since it opens up another set of possibilities for the future!