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Fuel cells have been a tantilizing technolgy for decades - powering space vehicles, but always a little out of reach for domestic or commercial use. I worked with Greenopolis Partner Plug Power for years - working to provide clean on site energy from hydrogen powered fuel cells. Now there’s the Bloom Box. That’s not a typo for a new carry-on-your shoulder stereo system. The Bloom Box is a refrigerator-sized box that can power your whole house, store or business.
Lemon Battery More science and technology projects from Hila Science (geodesic domes, sundials, kites, trebuchets......) Follow these links to video clips supporting this project: Introduction to Electricity - Hila Video on Youtube Build a Lemon Battery - Hila Video on Youtube
U sing parts easily available from the internet (see helpful links) and your local stores, you can make a small solar power generator for $250 to $300. Great for rolling blackouts, life outside the power grid, or the coming zombie apocalypse. Power your computer, modem, dvd, tv, cameras, lights, fans, or DC appliances anywhere you go. Use in cabins, boats, tents, archaeological digs, or while travelling throughout the third world. Have one in the office store room in case of power failures in your highrise.