Design calculations for overshot waterwheels
By Rudy Behrens
Issue #18 • November/December, 1992
(For good background information for this article, the reader should read "Waterpower for personal use" in Issue No. 16 and "Design calculations for overshot waterwheels" in Issue No....
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...
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 Building Design
By Steven Heckeroth
Issue #63 • May/June, 2000
Solar building design has been used since ancient times. In the more recent past, it has been more or less ignored as impractical, complicated, or too expensive. Incorporating...
For a truly independent energy system, your choices are solar, wind, and water
By Larry Elliott
Issue #28 • July/August, 1994
Just as the words "backwoods home" conjure up images of farmhouses, livestock, woodstoves, tractors, and gardens, the words "independent energy" bring to mind a whole new set of...
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...
An $89 backup generator
By Jeff Yago, P.E., CEM
Issue #159 • May/June, 2016
While I strive in all of my articles to only recommend products of high quality and reliability, I realize many of us are on a fixed-income...
Grid-tie solar-powered farm
By Jeffrey Yago, P.E., CEM
Issue #94 • July/August, 2005
Photo 1: One of two Fronius 3-kW grid-tie inverters. Note the DC-rated safety disconnect and all high voltage wiring installed in metal conduit.
Most of my past...
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 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....
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...
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...
Solar power for farm and ranch
By Jeffrey R. Yago, P.E.
It may be surprising to learn that there are now all kinds of do-it-yourself solar powered devices specifically designed to make farmers and ranchers lives easier and safer. Many of...
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 refrigerators
By Jeffrey Yago, P.E., CEM
Issue #102 • November/December, 2006
In Issue #99, I discussed the importance of using the most energy-efficient appliances you can buy for any remote cabin or off-grid solar application. I also...
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...
