You could theoretically build a coal pit in your back yard to turn the wood into coal, then power a steam engine hooked to generators to make electricity to run your computer. If you wanna be super "efficient" you can route the gasses from the coal process through the steam engine too to get power from that as well

Probably cleaner and less work to do almost any other kind of power though

[–] XTL@sopuli.xyz 3 points 7 months ago* (last edited 7 months ago) (2 children)

All power on earth is solar if you dig far enough.

[–] gimsy@feddit.it 8 points 7 months ago

Almost... Nuclear comes from super-novae, therefore not strictly "solar" (in the sense coming from the sun) but loosely yeah everything comes from stars and star formation

[–] KISSmyOSFeddit@lemmy.world 5 points 7 months ago

Geothermal energy isn't solar.