From the Neolithic to the beginning of the twentieth century, coppiced woodlands, pollarded trees, and hedgerows provided people with a sustainable supply of energy, materials, and food.
Continue reading "How to Make Biomass Energy Sustainable Again" »
Wood stoves can provide a household with thermal energy for cooking and for space and water heating. Wood stoves equipped with thermoelectric generators also produce electricity, which can be more sustainable, more reliable and less costly than power from solar panels.
Continue reading "Thermoelectric Stoves: Ditch the Solar Panels?" »
Citrus fruits (oranges, lemons, mandarins, tangerines, grapefruits, limes, pomeloes) are the highest-value fruit crop in terms of international trade. Citrus plants are not frost-hardy and can only be grown in tropical and subtropical climates – unless they are cultivated in fossil fuel heated glasshouses.
However, during the first half of the twentieth century, citrus fruits came to be grown a good distance from the (sub)tropical regions they usually thrive in. The Russians managed to grow citrus outdoors, where temperatures drop as low as minus 30 degrees Celsius, and without the use of glass or fossil fuels.
By 1950, the Soviet Union boasted 30,000 hectares of citrus plantations, producing 200,000 tonnes of fruits per year.
Continue reading "Fruit Trenches: Cultivating Subtropical Plants in Freezing Temperatures" »
Our self-hosted, solar-powered, off-grid website has been running for 15 months now. In this article, we present its energy and uptime data, and calculate the embodied energy of our configuration. Based on these results, we consider the optimal balance between sustainability and server uptime, and outline possible improvements.
Continue reading "How Sustainable is a Solar Powered Website?" »
During the last months we have been working on transforming Low-tech Magazine into a multilingual publication. Many articles had been translated over the years, but they were not easy to find. Now, each language has its own solar powered main page.
The Spanish and French versions are the most complete for now, with respectively 41 and 34 articles online. Dutch, German, Polish and Italian main pages are also available. Some languages also have articles that are not translated into English.
Continue reading "Low-tech Magazine in Spanish, French, and Other Languages" »
The fire – which we have used in our homes for over 400,000 years – remains the most versatile and sustainable household technology that humanity has ever known. The fire alone provided what we now get through a combination of modern appliances such as the oven and cooking hob, heating system, lights, refrigerator, freezer, hot water boiler, tumble dryer, and television. Unlike these newer technologies, the fire had no need for a central infrastructure to make it work, and it could be built locally from readily available materials.