Solar power for farm and ranch

By Jeffrey R. Yago, P.E. It may be surprising to learn that there are now all kinds of do-it-yourself solar powered devices specifically designed to make farmers and ranchers lives easier and safer. Many of...

Design calculations for overshot waterwheels

By Rudy Behrens Issue #18 • November/December, 1992 (For good background information for this article, the reader should read "Waterpower for personal use" in Issue No. 16 and "Design calculations for overshot waterwheels" in Issue No....

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...

Grid-down battery devices

By Jeff Yago, P.E., CEM Issue #163 • January/February, 2017 Most of my past articles and my just-released new book titled, Lights On, drive home the importance of having multiple battery-powered devices during an extended power...

Dim bulbs in California

By Jeffrey Yago, P.E., CEM Issue #107 • September/October, 2007 By now many of us have heard that under a bill proposed by Assemblyman Lloyd Levine (D), the state of California is about to become the...

Portable solar power

By Jeffrey Yago, P.E., CEM Issue #134 • March/April, 2012 Fold-up solar modules now available in many sizes As the cost of solar cells has declined, the industry has started to increase the physical size of individual...

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...

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...

Walden Pond — the solar version: Part 2

By Jeffrey Yago, P.E., CEM Issue #100 • July/August, 2006 In the last issue I provided the initial steps required to design your remote cabin or retreat for off-grid power. We also reviewed the types of...

Converting a Gasoline-Powered Rototiller to Electric

By Glenn Willis, Jr. Issue #87 • May/June, 2004 Several years ago my sister and her husband had an 8-horse gas-powered rototiller that went belly up. They fussed with it a bit, but couldn't get it...

Hydronic woodstoves

By Jeffrey Yago, P.E., CEM Issue #105 • May/June, 2007 Do you realize there is an entire field of woodstoves that the general public rarely hears about, even though there are specialty woodstove stores in every...

What if the electricity GOES OFF?

By Michael Hackleman Issue #55 • January/February, 1999 Just as everyone was getting ready to throw the party of the century and millennium—out with the old and in with the new—someone springs Y2K on us. Power...

Why you need to addsolar to your emergencypower backup plans

By Jeffrey Yago, P.E., CEM Issue #149 • September/October, 2014 Click Here to listen to an interview with Jeff about this article. Most of the electric substations, transmission lines, and electrical switchgear for any given utility are...

Just for Kids: Sun-kabobs and solar sizzle

By Lucy Shober Issue #28 • July/August, 1994 Click on pictures for printable, full-sized versions to color. Picture yourself in this dreamy scenario: It's a hot summer afternoon. The sun is beaming through the shade trees as...

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...

Build a community assistance recharging station

By Jeffrey Yago, P.E., CEM Issue #152 • March/April, 2015 Many preppers are starting to realize they cannot do it all on their own. True security during a major disaster or civil unrest is much more...