A solar primer — How it works, how it’s made, what it costs

By Jeffrey Yago, P.E., CEM Issue #72 • November/December, 2001 Buying a solar power system is not like buying a kitchen appliance or power tool. These, unlike a solar system, have published capacity and performance data...

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...

Solar Building Design

By Steven Heckeroth Issue #63 • May/June, 2000 Solar building design has been used since ancient times. In the more recent past, it has been more or less ignored as impractical, complicated, or too expensive. Incorporating...

Build Your Own Car Wash

By Jeffrey Yago, P.E., CEM Issue #133 • January/February, 2012 Completed car wash in operation If someone told me a year ago that I would have a commercial car wash behind my garage, I would have laughed....

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 trailer Part 1

By Jeffrey Yago, P.E., CEM Issue #108 • November/December, 2007 Many of us like to go camping, but as we age it's much easier if we have a bathroom, kitchen, refrigerator, microwave oven, television, DVD player,...

Power-up bag

By Jeffrey R. Yago, P. E. During any emergency or related power outage, the most important electronic device you need to keep operating is your cell phone, at least as long as cellular service is...

Water: a safe supply when you’re off the grid

By Jeffrey Yago, P.E., CEM Issue #71 • September/October, 2001 That remote mountain property seemed like a steal until you found out you could not drill a well. Four years ago we were approached by a...

Solar-powered chicken coop

By Jeffrey Yago, P.E., CEM Issue #132 • November/December, 2011 Pre-manufactured chicken coop with roof-mounted solar module I am sure many of you have raised large flocks of chickens for years as a normal part of rural...

Battery-Powered Tools are Changing

By Jeffrey Yago, P.E., C.E.M. April/May/June, 2019 Battery-powered tool technology is now undergoing some rapid changes in both the power of the tool motors and the batteries supplying the added power. For many years most battery-powered...

Energy class: Part 1

By Jeffrey Yago, P.E., CEM Issue #111 • May/June, 2008 Each fall when my dad took us to the State Fair, we could always count on this fast-talking salesman standing next to his car with a...

Battery powered weekend retreat

By Jeffrey Yago, P.E., CEM Issue #83 • September/October, 2003 Blake McKinney owned several acres of beautiful deep forest wilderness along a fast-moving year-round fishing stream that was perfect for a planned weekend retreat. Mr. McKinney,...

Build your own battery charging station

By Jeffrey Yago, P.E., CEM Issue #142 • July/August, 2013 Completed charging station after sanding and painting Let me guess — the reason many of you do not use rechargeable batteries is that every time you need...

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....

Power Up Light, Water, Communications in Emergencies

By Jeffrey R. Yago, P.E., C.E.M. April/May/June, 2019 Preparing for any emergency or future disaster is never easy. What should you prepare against; what is the likelihood it will actually happen; how long will it take...

For a truly independent energy system, your choices are solar, wind, and water

By Larry Elliott Issue #28 • July/August, 1994 Just as the words "backwoods home" conjure up images of farmhouses, livestock, woodstoves, tractors, and gardens, the words "independent energy" bring to mind a whole new set of...