This would have to be one of the best documentaries about the potential of solar power. The simple fact is the sun could easily provide the planet with sufficient energy, right now, if only we are willing to change and to invest in harvesting that solar energy. This documentary looks at how current solar power technologies […]
“Hydro-electricity is fundamentally the combination of water flow and vertical drop (commonly called “head”). Vertical drop creates pressure, and the continuous flow of water in a hydro system gives us an ongoing source of pressurized liquid energy. Pressurized, flowing water is a very dense resource, and hydro-electric systems convert a very large percentage of the […]
This short video will show you several options to creating your own methane biodigester… “Today, we’re gonna bring you into the world of bio-gas digestion. The whole idea is to create methane, just like you do in your stomach; as you’re churning up your food, one of the bi-products is methane. Here, we’re gonna show […]
“After building a couple of reasonably successful alternators out of wood, I thought it would be fun to make one utilizing steel behind the magnets, and some sort of steel laminates. The most recent wooden alternator I built works great, but the lack of iron behind the magnets and coils severely limits its maximum output […]
Here’s a great little tutorial on creating a 1,000 watt wind turbine. “We built a 1000 watt wind turbine to help charge the battery bank that powers our off grid home. It’s a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, […]
Need some serious solar power? Here’s how to convert an old junk TV into a 2000ºF solar cooker. It’s a technique for hacking a 4 foot mega magnifying lens out of your old TV, and some of the things you can do with it… It can purify or boil water, instantly start a fire, melt metal, […]
In this era where everyone’s searching for innovative ways to harness the sun’s energy, the makers of Blight, a solar venetian blind, deserve some recognition. This solar blind takes power from the sun during the day and gives it back to you at night by transforming into a light. No power cables are needed, and […]
What if we could live in a clean world? A world in which energy would be 100% renewable, water no longer polluted, transportation truly green and production methods clean and regenerative? There will be such a world. This documentary explores the unprecedented possibilities of a new industrial revolution: Cleantech. Signs of a new future are […]
This is VERY VERY cool… “Here’s how to build a photo-bioreactor that uses algae to convert carbon dioxide and sunlight into energy. The energy that is produced is in the form of algae biomass. The photo-bioreactor is built from plastic recycled water bottles. By designing the apparatus to be compartmentalized, we are able to do […]
This is an excellent example of up-cycling old stuff and creating something really practical & useful from it… “After our first attempt at a home built proof of concept solar thermal panel, we were a bit disappointed with the results. It took about 4 hours before the thing started work, and was a bit costly […]