Practical Answers
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Mushroom Production for Sustainable Livelihoods
This manual is a culmination of Practical Action Southern Africa's work in Chakohwa. The project worked with the Chakohwa Community-Based Organisation (CCBO) in Chimanimani District of Manicaland province. The aim of the project was to provide income earning opportunities for HIV and aids orphans an...
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Low-Cost Civil works for Micro-Hydro Schemes
Civil works can suffer from cracking and significant scour damage. This document looks at some of the approaches that were taken to combat these problems in hydro schemes in the Cajamarca region of Peru.
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How to Grow Your Own Onion Seed
Here is some basic information on how to grow onions and produce onion seeds. The document focuses on Burkina Faso but this approach can be used in many other locations.
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Fodder Conservation Using a Manual Baler
A simple method for baling fodder.
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Extrusion of Foods
There are two types of extrusion process: cold extrusion, which mixes and shapes foods such as biscuit dough and pasta without cooking them; and hot extrusion (or extrusion cooking).
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Cable Selection in Small Off-grid Solar energy Installations
Ideally, voltage drop in a solar energy installation should be
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How to Make Sausages
A wide variety of sausages are produced in countries throughout the world. Most are produced from meat (especially pork and beef) but in some countries, fish sausages are also popular. Vegetarian and vegan sausages are available in some countries, made from tofu, nuts, pulses, mycoprotein, soy...
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What is Appropriate Technology?
Technology: choice or compromise?
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Solar Photovoltaic Water Pumping
The advantages and disadvantages of solar water pumping are outlined in this document.
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Small-scale Off grid Solar PV Installation Manual
A complete installation guide for Solar PV systems up to 235W (or one solar panel.) Written in collaboration with Quetsol, primarily for applications in Guatemala.