Monthly Archives: September 2009

Aquaponics: Part II

Aquaculture system plan view

The recirculating aquaculture system (RAS) at Aprovecho was designed mainly to raise as many tilapia as possible while keeping external inputs to a minimum. Some RAS systems balance hydroponic vegetable production with fish production (Aquaponics). Some of those systems can … Continue reading

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Aquaponics: Part I


Try to think about the last time you were strolling through a grocery store and you began to feel that slight chill that creeps out from the refrigerated meat and seafood cases and into your bones as you peruse the … Continue reading

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A step up the Energy ladder, Aprovecho Style

Flat Plate solar collector

by Mike Hatfield In most circles, when people talk about moving people up the energy ladder they are speaking of moving away from simpler traditional forms of energy, such as wood, to more concentrated forms such as natural gas.  At … Continue reading

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Woody Biomass

by Matthew Hall The search for biofuels continues, and woody biomass is back in the spotlight. Seneca Sawmills is planning to build a wood fired generator to produce electricity. They are planning to haul slash piles from their clear cuts … Continue reading

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Constructing a Ferrocement Tank

Every long-lived and hearty culture has its monoliths. This last month, I took a stab at this ancient tradition by constructing a ferrocement tank on the most solid piece of ground I could find out here at Aprovecho.  We set … Continue reading

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