Off-Grid How-To Guides

Step-by-step guides for building, maintaining, and thriving in an off-grid lifestyle. Start with the essentials below.

By Jake Mercer · Off-Grid Homesteader & Former Engineer

These guides come from four years of full-time off-grid living on a 14-acre homestead in rural Tennessee. The goal isn’t to give you advice you can find anywhere — it’s to give you the real numbers: watt-hours, gallons per day, actual cost breakdowns, and the mistakes that don’t get mentioned until after you’ve already made them.

Every guide includes the calculations behind the recommendation. When we say “a 400W system is enough for a small cabin,” we show you the math so you can adjust it for your own situation. Off-grid systems aren’t one-size-fits-all — generic advice is the reason so many first builds end up dangerously undersized or wastefully over-engineered.

How to Use These Guides

The 12 guides here cover the four core systems of off-grid independence: solar power, water, food production and preservation, and shelter and building. They’re designed to be used together, because off-grid systems interact in ways that single-topic guides miss.

A few things worth knowing before you start:

• Start with your load, not your panels. The most expensive mistake in off-grid solar is buying hardware before calculating power requirements. The Power Audit Guide and Solar Sizing Guide build on each other — work through them in that order.
• Water and solar interact. If you’re planning a pressurized pump, it belongs in your solar load calculation. The Gravity Water System Guide exists for those who want to skip that complexity entirely — no pump, no power draw, no pressure tank.
• Food preservation has hard safety requirements. Unlike solar or water systems where undersizing is just inconvenient, canning at the wrong temperature causes botulism. The Food Preservation Guide covers USDA-recommended temperatures and processing times. Don’t skip that section.
• Building guides are scope assessments, not full construction manuals. The cabin, earthbag, and shelter guides tell you what’s involved and what to research further — not a complete specification. Local building codes and climate vary too much for any single guide to cover every situation.

If you’re choosing equipment for any of these systems, the reviews section covers the gear we’ve tested on this homestead. The guides give you the system design; the reviews help you pick the hardware.