Hay Boxes or Fireless Cookers

Illustration from The Fireless Cook Book Mrs. Homegrown here: Jessica from Holland sent us a letter recently praising our work, but very, very gently scolding us not including the hay box, a groovy old energy saving technology, in our book. We do stand corrected! And her enthusiasm for hay boxes has reignited our interest, too. We actually considered hay boxes for Making It, but didn’t end up building one for a variety of reasons...

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Made in the shade- Passive cooling

ramshackle 2×4 and drywall buildings from California to Long Island, and all the climate zones in between. Just stick an air conditioner on top, put in a heating unit, and you’re done. Sadly, most buildings are an energy efficiency disaster. Poor design is so prevalent, it is shocking once you know what to look for. Have you ever leaned up against a stucco or brick wall on a hot day? Ouch! You can literally burn your skin off. Howev...

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Solar Water Disinfection (SODIS)

Via Afrigadget, a visual explanation of how to disinfect water with just a PET plastic bottle. The diagram, developed by Unicef, pretty much speaks for itself. Too much gunk in the water? Let it settle and filter through some cloth. At least six hours of sunlight will be enough UV to kill bad buggies. Using solar water disinfection, or “SODIS”, replaces the need to boil water, thus reducing deforestation to supply fire wood. Obviousl...

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Saturday Linkages: The Calm After the Storm

Got a storm damaged tree? See Trees Are Good for advice. DIY Build-It-Solar Blog: A Unique DIY Solar Pool Heating Collector Using PV… http://www. builditsolarblog.com/2012/10/a-uniq ue-diy-solar-pool-heating.html?spref=tw  … Build-It-Solar Blog: Large DIY Solar Space and Water Heating System in … http://www. builditsolarblog.com/2012/10/large- diy-solar-space-and-water-heating.html?spref=tw  … Primitive Skills Roland T...

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A New Source of Fuel

...by the GO-EXPO organizers as the major highlight of this year’s conference, which had 20,000 attendees. In it, the “NPC rep” was expected to deliver the long-awaited conclusions of a study commissioned by US Energy Secretary Samuel Bodman. The NPC is headed by former ExxonMobil CEO Lee Raymond, who is also the chair of the study. (See link at end.) In the actual speech, the “NPC rep” announced that current U.S. and C...

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Thrive: How Doughnuts Can Save The World

...e on a kind of interview studio/spaceship inspired, perhaps, by the one Carl Sagan deployed in Cosmos. But unlike Sagan, Gamble is not one to let inconvenient facts like the laws of thermodynamics interfere with all that free energy we can just will into existence. The central thesis of Thrive is put forth by an outsider physicist (sporting a sort of new age mullet) who explains that there’s a form, resembling an oversized and transparent j...

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Appropriate Technology

...conomist E. F. Schumacher’s book Small is Beautiful and is easier to show rather than describe. While not always low-tech, appropriate tech concepts feature elegantly simple (but not simplistic) design, efficient use of energy and are usually aimed at poor countries. What Homegrown Evolution would like to prove is that these technologies have a place in developed western countries as well. Here’s three of our favorite appropriate tech...

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Crapper Livin’

hroom would probably violate city codes in many places which mandate a minimum square footage for habitable dwellings. The nice thing about a small house is that it discourages the accumulation of crap and requires a lot less energy to maintain. Sure, there is less convenience with a building like this. With a very simple solar water heating system showers need to be taken at the end of the day and the very modest solar panel would not be able to...

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Saturday Linkages: Making Things and Herding Ducks

Herding ducks. Via The Tangled Nest. DIY Simple Swiss fences for the homestead: http:// dirttime.com/?p=2687 via Practical Parsimony Build-It-Solar Blog: Comparing the Performance of Two DIY Solar Water Heaters http://www. builditsolarblog.com/2012/07/compar ing-performance-of-two-diy-solar.html?spref=tw  … Build-It-Solar Blog: Using Your Lawn Sprinkling Water to Cool the House… http://www. builditsolarblog.com/2012/08/using- yo...

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SurviveLA Visits Simparch’s Utah Compound

...ield on land leased by the Center for Land Use Interpretation, Simparch’s project proves that self-reliance is possible in what must be one of the harshest climates in North America. Clean Livin’ features a set of solar panels, batteries, a solar shower, a refrigerator, and a composting toilet all housed in and around a repurposed WWII era Quonset hut. Water is biked in with specially adapted cargo bikes. Solar power pumps the water...

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