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...

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...

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...

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...

Waterpower for personal use

By Rudy Behrens Issue #16 • July/August, 1992 (This introductory overview to waterwheels is the first of a three-part series. The second installment will be about undershot and no-head wheels, and the third installment ...

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...

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...

Build a simple solar-powered outdoor light

By Jeffrey Yago, P.E., CEM Issue #92 • March/April, 2005 Figure 1. Pole-mounted street light showing a front view of the solar light In our last issue, I discussed how to use solar energy to power a...

Get the most out of your vehicle and your maintenance dollar

By Len Torney Issue #116 • March/April, 2009 Let's face it—we all own vehicles. Our rural lifestyle pretty much leaves us dependent on our vehicles for all of our daily transportation needs, as well as the...

Phantom solar — The crucial invisible system needed before you install solar

By Jeffrey Yago, P.E., CEM Issue #78 • Are you planning to install a solar photovoltaic system to reduce your utility bills? How would you like it if your first solar electric power system had invisible...

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...

Generators alone are not enough

By Jeff Yago, P.E., CEM Issue #157 • January/February, 2016 When talking to fellow preppers at self-reliance expos across the country, I am always impressed by how many already have long-term food supplies, stored water, medical...

Energy class: Part 1

By Jeffrey Yago, P.E., CEM Issue #111 • May/June, 2008 Each fall when my dad took us to the State Fair, we could always count on this fast-talking salesman standing next to his car with a...

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...

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...

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...