Off-grid · Solar · South America

Autarchy in Tow

A home that supplies itself with power, water and everything it needs — technically done right, built in South America. Lived, not googled.

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16 kWp | 3x 5 kW inverters off-grid solar 51.2 V LiFePO4 | 28.8 kWh | 560 Ah battery bank 100% self-built

01 — What's inside

No guidebook fluff.
A blueprint.

Every chapter solves a concrete problem standing between you and a self-sufficient home — with numbers, mistakes, and what actually holds up in the end.

Off-grid solar

Panels, inverters, storage — sized for real-world consumption.

Battery bank

Capacity, depth of discharge, lifespan. Where you can save and where you can't.

PEN off-grid

Earthing and protective conductor without a public grid — done cleanly and safely.

Water

Well, pump, pressure, filter. From the source to the tap.

Septic & wastewater

Building and running a septic tank properly — the chapter nobody explains.

Roof & foundation

Details that make or break a house for decades. What counts in a subtropical climate.

02 — In pictures

What self-sufficiency really looks like

No stock photos. Everything was shot at my own project in Paraguay.

"Self-sufficient doesn't mean back to nature. It means using the best technology so that you don't need anyone anymore."

Armin, the one who left

03 — The author and builder

Armin – builder of the system

I'm not selling you a dream of the simple life. I'm showing you how I actually built it — including the mistakes that cost me time and money.

I live off-grid in Paraguay: my own solar system, my own water supply, built myself. Construction by day, tech by night. Everything in this book came from my own house — nothing second-hand.

04 — In motion