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...

Install a mobile, solar powered toilet

By Jeffrey Yago, P.E., CEM Issue #79 • January/February, 2003 When our solar business started to really increase, I found myself spending more and more time in my truck traveling down the highway to very remote...

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...

Solar Power 101 — Solar arrays

By Jeffrey Yago, P.E., CEM Issue #90 • November/December, 2004 This article is the fourth and final part of our beginner's course in solar electricity. Simultaneously we have instituted a Home Energy Information (www.homeenergy.info) section on...

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...

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...

Portable solar power

By Jeffrey Yago, P.E., CEM Issue #134 • March/April, 2012 Fold-up solar modules now available in many sizes As the cost of solar cells has declined, the industry has started to increase the physical size of individual...

Solar suitcase

By Jeffrey Yago, P.E., CEM Issue #150 • November/December, 2014 Completed solar suitcase project From time to time, people call to ask what we have for emergency solar power suitable for a bug-out bag. Naturally, my first...

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...

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...

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...

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...

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...

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...

Job site solar power

By Jeffrey Yago, P.E., CEM Issue #144 • November/December, 2013 Regardless of your favorite brand, standardize all battery-powered tools to use the same battery pack. If you are planning to live off-grid or are building something in a...