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...

Solar hot water systems

By Jeffrey Yago, P.E., CEM Photos by Patrick Redgate Issue #118 • July/August, 2009 With continued shortages of wood for home heating, the Greeks built the North Hill section of Olympus in the 5th century B.C. This...

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 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...

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...

Homemade electric power

By Jim Van Sant Issue #131 • September/October, 2011 Ever wonder how you could live off the grid when the sun isn't shining on your solar panels? Our homestead alternative energy system is based on 12 volts...

Build your own solar-powered water pumping station

By Jeffrey Yago, P.E., CEM Issue #91 • January/February, 2005 In the last issue, there was an excellent article by Dorothy Ainsworth on water pumping using mechanical windmills. In this issue I will address another form...

Making and using a solar cooker

By Joe Radabaugh Issue #30 • November/December, 2004 Solar cooking is a delightful alternative to conventional cooking methods. The solar cookers available today really work and they deserve serious evaluation by a much larger audience. For...

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...

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...

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...

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...

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...

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...

Solar Power 101 — Batteries: Part 1

By Jeffrey Yago, P.E., CEM Issue #87 • May/June, 2004 This article is the first in a series of what will be a beginner's course in solar electricty. Simultaneously we have instituted a Home Energy Information...

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,...