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 millenniumout with the old and in with the newsomeone springs Y2K on us. Power...
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,...
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...
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...
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...
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...
How to select the right backup generator
By Jeffrey Yago, P.E., CEM
Issue #82 • July/August, 2003
Now that the threat of terrorist sabotage to our utility infrastructure has been added to our basic concerns about storm related power outages, this may be...
Water pumping windmills
By Dorothy Ainsworth
Issue #90 • November/December, 2004
Standing tall like a giant sunflower in a sea of undulating prairie grasses, or in any rural setting, a windmill is a thing of beauty. Not only are...
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...
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...
Make your own biodiesel for 80¢ per gallon
By Jeffrey Yago, P.E., CEM
Issue #101 • September/October, 2006
My Ford F-250 diesel crew-cab pickup did not cause me to become interested in making my own bio-diesel fuel. No, the final straw was when I...
Powering medical equipment during a utility blackout
By Michael Hackleman
Issue #70 • July/August, 2001
Most people consider blackouts a nuisance. However, for some folks, a blackout can be paralyzing or even deadly, particularly if a critical piece of medical equipment lacks electricity....
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...
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...
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...
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,...






























