Solar-powered water purifiers
By Jeffrey Yago, P.E., CEM
Issue #146 • March/April, 2014
Most of us can stay alive up to a month without any food if stranded, but we could not live longer than three days without water...
A small creek provides plenty of power for this off-grid home
By Scott Gentleman
Website Exclusive • November, 2007
For eight years, Tracey and I lived in a solar powered home and for eight cloudy winters, we ran a small Honda generator every week to recharge our...
Waterpower for personal use
By Rudy Behrens
Issue #16 • July/August, 1992
(This introductory overview to waterwheels is the first of a three-part series. The second installment will be about undershot and no-head wheels, and the third installment ...
Solar suitcase
By Jeffrey Yago, P.E., CEM
Issue #150 • November/December, 2014
Completed solar suitcase project
From time to time, people call to ask what we have for emergency solar power suitable for a bug-out bag. Naturally, my first...
Are hydrogen-fueled cars pie-in-the-sky?
By Jeffrey Yago, P.E., CEM
Issue #103 • January/February, 2007
Hydrogen-fueled cars is a topic of much discussion these days. People who want to see the U.S. freed from dependence on foreign oil often assume the...
Solar Power 101 — Batteries: Part 2
By Jeffrey Yago, P.E., CEM
Issue #88 • July/August, 2004
This article is the second in a series of what will be a beginner's course in solar electricty. Simultaneously we have instituted a Home Energy Information...
Grid-tied, Grid-connected, Off-grid. What’s the difference?
By Jeffrey Yago, P.E., CEM
Issue #140 • March/April, 2013
Several weeks ago I received a call from a woman in Florida complaining that they just had a power outage lasting several days and her solar...
Millenium Vehicles
By Michael Hackleman
Issue #57 • May/June, 1999
A major failing of transportation worldwide is that 99.9% of vehicles on farms, street, and freeways work on one energy source: liquid fuels. In any disastersmall or large,...
Water pumping windmills
By Dorothy Ainsworth
Issue #90 • November/December, 2004
Standing tall like a giant sunflower in a sea of undulating prairie grasses, or in any rural setting, a windmill is a thing of beauty. Not only are...
Generators alone are not enough
By Jeff Yago, P.E., CEM
Issue #157 • January/February, 2016
When talking to fellow preppers at self-reliance expos across the country, I am always impressed by how many already have long-term food supplies, stored water, medical...
Build a simple solar-powered outdoor light
By Jeffrey Yago, P.E., CEM
Issue #92 • March/April, 2005
Figure 1. Pole-mounted street light showing a front view of the solar light
In our last issue, I discussed how to use solar energy to power a...
Design calculations for no-head, low-head waterwheels
By Rudy Behrens
Issue #17 • September/October, 1992
(This is the second of our three-part series on waterwheels. The third installation (Issue No. 18) will deal with overshot wheels. -- Editor.)
For those of you who are...
Don’t discount a generator, especially a diesel generator, as your primary power source
By Skip Thomsen
Issue #28 • July/August, 1994
There are three major reasons that wind, solar or hydro-electric systems are impractical for some folks: not enough wind, too many cloudy days, and no stream. In that...
Install a mobile, solar powered toilet
By Jeffrey Yago, P.E., CEM
Issue #79 • January/February, 2003
When our solar business started to really increase, I found myself spending more and more time in my truck traveling down the highway to very remote...
Standby battery charging techniques can ensure engine startups
By Jeffrey Yago, P.E., CEM
Issue #83 • September/October, 2003
Those of us living beyond the suburbs own various sizes and types of yard and garden machinery. From the mandatory riding lawnmower for those weekend warriors...
Solar Food Drying
By Marcella Shaffer
Issue #58 • July/August, 1999
The oldest known method of food preservation is drying food using the heat from the sun. Unfortunately it has become the least used as freezers and pressure canners...
