So called hot dry rock geothermal technology has the potential to be a huge generator of emissions-free technology for a relatively steep initial investment but very low ongoing costs. The basic concept is simple — dig a big hole in the ground to where the granite is very hot, pump in water, and let the resultant steam power a turbine. [photo by futureatlas] [slashdot]
Tag Archives: power
Tethering Tornados To Generate Electricity
Retired engineer Louis Michaud makes small tornados in his garage, but he wants to build them miles high. It works like this: route a nuclear power plant’s cooling pipes through an especially constructed building. Use big fans to blow air over the pipes. Use baffles and retaining walls to shape the hot air into a vortex. Put turbines in the path of the resultant tornado and recapture the energy that would otherwise be lost as waste heat. The idea without all the journalistic fluff of the article linked above is described on Michaud’s website, complete with diagrams. [digg]
Defense Looking For Human Scale Power System
Gargoyles and uber-geeks begarlanded with gadgets may have the Department of Defense to thank for improvements in portable power supplies. They’re sponsoring a new $1 million prize to encourage the development of a power system that weighs less than 4 kilograms and provides 96 hours of power for soldiers in the field. [image by moria] [defense tech]