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...

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...

Is steam power in your future?

By Skip Goebel Issue #43 • January/February, 1997 If you're thinking steam is old-fashioned, consider this: Almost a century ago, steam cars and ships attained speeds and efficiencies which are still difficult to attain, even with...

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 charge controllers — myths, hype, and facts

By Jeffrey Yago, P.E., CEM Issue #153 • May/June, 2015 Most people with a basic understanding of solar power are aware they need a solar module and a storage battery to power an electrical device using...

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...

Keep the Ice On

By Jeffrey R. Yago, P.E., C.E.M. Self-Reliance, Fall 2019 When I ask most people why they own or are looking to buy a generator, most will say it is to keep a refrigerator or freezer operating....

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...

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...

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...

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...

7 Solar Water Heating System Designs

By Michael Hackleman Issue #65 • September/October, 2000 (Rob Harlan is a general and solar contractor with 25 years of experience with solar water heating systems in Mendocino County, California. Rob primarily designs and installs photovoltaic...

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 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...

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...

Prepper power! Part 1

By Jeffrey Yago, P.E., CEM Issue #136 • July/August, 2012 The interesting thing about being a "prepper" is most preppers don't want anybody to know they are one! No doubt many fear they will be ostracized...