After one of those nights where you find yourself in some weird part of the internet reading about some speculative and conspiracy type stuff, you might find yourself at a Home Depot buying a couple of grounding rods to make an Earth Battery.

I found this research from 2008 from a University in Pakistan afterwards, proving this is a viable source of power. https://www.researchgate.net/publication/4347039_Experimental_study_of_earth_batteries