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...

Energy class: Part 2 — Understanding your electric bill

By Jeffrey Yago, P.E., CEM Issue #112 • July/August, 2008 In Part 1 of this series of articles, I hopefully made you aware that your home's utility costs should be more of a concern than what...

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...

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...

Solar Power 101 — Solar arrays

By Jeffrey Yago, P.E., CEM Issue #90 • November/December, 2004 This article is the fourth and final part of our beginner's course in solar electricity. Simultaneously we have instituted a Home Energy Information (www.homeenergy.info) section on...

Solar Power 101: Inverters

By Jeffrey Yago, P.E., CEM Issue #89 • September/October, 2004 This article is the third in a series of our beginner's course in solar electricity. Simultaneously we have instituted a Home Energy Information (www.homeenergy.info) section on...

Energy class: Part 3

By Jeffrey Yago, P.E., CEM Issue #113 • November/December, 2008 In Part I of this series of articles, we reviewed how home utility costs will be the next energy source expected to have major cost increases...

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...

Solar power trailer Part 2

By Jeffrey Yago, P.E., CEM Issue #109 • January/February, 2008 In Part I of this article in the November/December 2007 issue, I described the many uses for a solar power system that could be made totally...

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...

Use solar landscape lights for emergencies

By Jeffrey Yago, P.E., CEM Issue #141 • May/June, 2013 Solar-powered landscape lights in dark room. Note different light patterns and brightness. People own all kinds of household items that can be used to make life easier during...

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...

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...

Build a passive-solar food dehydrator

By Jeffrey Yago, P.E., CEM Issue #143 • September/October, 2013 The finished passive-solar dehydrator maintained a fairly constant temperature of 150° F throughout most of the day without any repositioning, which shows that this design can...

Keep those gadgets working after the power goes out

By Jeffrey Yago, P.E., CEM Issue #84 • November/December, 2004 The recent 2003 northeast electric grid failure taught the residents of many large cities what most rural residents learned years ago: Lights, air conditioners, televisions, stereos,...

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...