An Italian company has developed a working, cost-efficient floating solar panel system which rotates in order to capture more of the sun’s energy.
Posts Categorized: Energy Systems
Beavers and wasps can build their own homes… — Michael Reynolds History Modern Earthships are shelters built to sustain their occupants by providing energy, water, and waste management through the use of passive systems. They have been designed to meet the rigorous criteria that are found in the building codes of so many western governments…. Read more »
We built a solar oven made out of cardboard, and showed the pygmies how to purify water through a solar disinfection unit (the SODIS System). We also showed them how to make a filter with a bucket full of sand, gravel and active carbon. by Xavier Fux Who said last days weren’t productive? Before leaving,… Read more »
A certain coal-strewn road in Madrid, New Mexico — the remnants of a now defunct railway. Alternately barren and spectacular, the southwest United States has piqued the imagination of Americans and people across the world for generations. The site of gold rushes, Native American homelands, and a culture of lawlessness that has yet to fade… Read more »
Join John Hardy on a tour of the Green School, his off-the-grid school in Bali that teaches kids how to build, garden, create (and get into college). The centerpiece of campus is the spiraling Heart of School, perhaps the world’s largest freestanding bamboo building. — Ted.com
Wandering tortillas Even in backward mining communities, as late as the sixteenth century more than half the recorded days were holidays; while for Europe as a whole, the total number of holidays, including Sunday, came to 189, a number even greater than those enjoyed by Imperial Rome. Nothing more clearly indicates a surplus of food… Read more »
In the book Another Kind of Garden, the methods of Jean Pain are revealed. He spent his entire short-lived life studying brush land and forest protection, specifically fire prevention, alongside his wife Ida. These studies led to an enormous amount of practical knowledge for composting, heating water, as well as harvesting methane, all of which… Read more »
by Lester R. Brown, Earth Policy Institute The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these "solar thermal collectors" use the sun’s energy to heat water, space, or both. China had an estimated 168… Read more »
This is perhaps the most resourceful use of plastic crap I’ve ever seen.
by Jessica Ryall You don’t need a super-fantastic-amazing funny-looking low energy house to cut down your home energy use if you know what you’re looking for. Not every house in suburbia is a low energy house. You have probably noticed it yourself. Some homes are just naturally bright and sunny. They’re always nice to be… Read more »
by Lester R. Brown, Earth Policy Institute Between 2007 and 2011, carbon emissions from coal use in the United States dropped 10 percent. During the same period, emissions from oil use dropped 11 percent. In contrast, carbon emissions from natural gas use increased by 6 percent. The net effect of these trends was that U.S…. Read more »
Rocket stoves are awesome, experimental, and a knowledge stream in flux. Or ours is, at any rate. Our rocket stove water heater has been doing its thing for nearly three years now, so we decided to take it apart and do a full examination of how it had fared. So Nick and our current permaculture… Read more »