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What is your backup power? Solar, wind. Generator, Earth Battery, Grid?

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mtoffgrid

RVF Newbee
Joined
Oct 10, 2025
Messages
4
I have headed to Tuscon Arizona for the winter before, but this winter just going to plant it on a friends land for a few months and see how it goes. However, it is not near his house or near any power. Solar is great when it is sunny out. Thought about wind, but he says good luck. Generator is taking a beating running all the time. So what the heck, bought a few books on Earth Batteries and after making a few small ones that actually did work and ran LED lights and charged my cell phone, I am going bigger. Basically you can go as big as you want for your power needs, but I am just going for something more reasonable and affordable such as one that will charge my batteries in the RV with a 40 amp solar charge controller and for a few hundred bucks the plans are straight forward.
So since it is a one time shot and no fuel costs or beating up the generator, plus the little one I built works great and this old technology is going to save me hundreds in fuel alone every month. Turns out earth batteries are used in over a 1000 communities all over the world and even are used to run power for schools in Africa. Looked it up, sure enough. Convinced me this is the way to go. Thought I would share, seems pretty darn cool, plus if they used it in telegraphs all over the world for decades, why didn't I think of this earlier since I knew about that. Well, the books help solve a lot of problems. So if you are parking it for the winter or live off grid and want to save on the Gen and giver a try, look into it.
 

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