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....
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....
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...
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 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-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...
Millenium Vehicles
By Michael Hackleman
Issue #57 • May/June, 1999
A major failing of transportation worldwide is that 99.9% of vehicles on farms, street, and freeways work on one energy source: liquid fuels. In any disastersmall or large,...
Emergency solar power for $950
By Jeffrey Yago, P.E., CEM
Issue #73 • January/February, 2002
For less than the price of a desktop computer you can have the piece of mind that your lights and small appliances can operate for months...
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...
Dim bulbs in California
By Jeffrey Yago, P.E., CEM
Issue #107 • September/October, 2007
By now many of us have heard that under a bill proposed by Assemblyman Lloyd Levine (D), the state of California is about to become the...
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....
Power your bug-out bag
By Jeff Yago, P.E., CEM
Issue #160 • July/August, 2016
More and more people are starting to see the advantage of having a bug-out bag for each member of their family. Normally these bags are kept...
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...
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...
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,...
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...
